EP2246480B1 - Palplanche et unité de blindage par planches - Google Patents

Palplanche et unité de blindage par planches Download PDF

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Publication number
EP2246480B1
EP2246480B1 EP10153571.4A EP10153571A EP2246480B1 EP 2246480 B1 EP2246480 B1 EP 2246480B1 EP 10153571 A EP10153571 A EP 10153571A EP 2246480 B1 EP2246480 B1 EP 2246480B1
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EP
European Patent Office
Prior art keywords
cross
sectional
chamber plate
chamber
trench
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Application number
EP10153571.4A
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German (de)
English (en)
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EP2246480A2 (fr
EP2246480A3 (fr
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Friedr Ischebeck GmbH
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Friedr Ischebeck GmbH
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Publication date
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Priority to EP13182816.2A priority Critical patent/EP2677085B1/fr
Publication of EP2246480A2 publication Critical patent/EP2246480A2/fr
Publication of EP2246480A3 publication Critical patent/EP2246480A3/fr
Application granted granted Critical
Publication of EP2246480B1 publication Critical patent/EP2246480B1/fr
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E02D17/083—Shoring struts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E02D17/086—Travelling trench shores

Definitions

  • the present invention relates to a chamber plate shoring unit according to the preamble of claim 1.
  • Steel channel boards are known for use in the so-called. Steel chamber panel shoring. This technique is used in trench construction (eg in pipe laying work) in non-short-term stable soils. In this case, a preliminary lift of only limited depth, in the channel struts against each other supported steel chamber plates are set in the top and bottom open chambers of the chamber plates are then introduced from the top channel boards and alternating with the further deeper trenching due to their heavy handling with a Excavator spoon pressed to depth.
  • the channel boards bspw Depending on the extent of the channel boards in their plank longitudinal direction so deeper trenches can be supported or installed on their side walls, being supported in the upper trench cut the channel boards against the also forming a guide chamber plates and depending on the depth of the trench below the chamber plates, the channel boards bspw . be supported by an earth abutment or otherwise.
  • the trench is filled back and pulled out of steel and therefore heavy channel boards pulled out of the chamber plates by means of an excavator, crane or the like, whereupon the chamber plates removed from the remaining trench and the rest filling is made ,
  • This known application is referred to as steel chamber plate trenching.
  • the channel boards and the chamber plates are each made of steel to achieve the highest possible stability.
  • openings and connections are only selectively present on the chamber plates and channel boards in order to avoid weakening. Due to this design and the resulting heavy weight must be taken into account that an excavator is necessary as a hoist for working with the steel chamber plate shoring and steel channel boards, because even the individual weights of people can not be handled.
  • GB 1 116 382 A Aluminum channel boards are known.
  • WO 90/05810 A1 and WO 90/05810 A1 reveal channel boards made of aluminum.
  • the invention has the object, advantageously further develop a generic chamber panel-mounting unit, so that in particular the aforementioned limitation can be avoided.
  • a perpendicular to their Dielenlpsychsraum cross-section of the channel boards in its cross-sectional longitudinal direction in the region of its two longitudinal ends each have an end U-profile-like cross-sectional area, each one at least substantially in or parallel to the cross-sectional longitudinal direction extending U-web and two adjoining U-legs and which are open to the same profile side, with their respective, in the cross-sectional longitudinal direction of the cross-section center facing U-legs in an at least substantially in or parallel to Cross-sectional longitudinal direction extending cross-sectional segment, in particular in a U-web of a central U-profile-like cross-sectional area, merges, wherein the free end of the respective, in the longitudinal direction of the cross-section of the cross-section center facing away (ie end) U-legs in a m transversely to the cross-sectional longitudinal direction (ie in cross-sectional transverse direction) measured distance from the side facing away from the cross
  • the channel boards are made at least substantially of aluminum and / or aluminum alloy.
  • the cross-sectional segment has at least one undercut, in particular T-profile-like undercut, groove which extends parallel to the plank lengthwise direction of the channel planks and preferably along the entire length of the channel planks.
  • a channel dowel for example, (ie not necessary) in the plank longitudinal direction a length of 2.5 m and in its perpendicular cross-section in the longitudinal direction 215 mm and cross-sectional transverse direction measures 50 mm, have a weight of only about 14 kg, the self For example, according to the very strict health and safety regulations, it is still permissible for a worker to keep moving in Sweden. In this regard, the individual weight must be less than 16 kg.
  • Such an aluminum plank can be set and pushed by hand into the chamber plates in a preferred use for an aluminum chamber slab lightweight construction and makes it possible, for example, to build construction pits to 2 m depth depending on the ground without additional reinforcements.
  • the preferred manual handling of the channel boards is favored by their undercut longitudinal groove (preferably T-slot) which forms a ribbon. It can be used for example by means of a socket screw for clamping a sling or a handle for pressing in and pulling the aluminum plank by hand. Also, by means of the T-slot, for example, a stopper can be clamped to the channel docks.
  • the stopper can be dimensioned so large in terms of its dimensions that it protrudes beyond the edge of the chamber formed in a chamber plate and therefore can not be pushed into the chamber. In this way, the plank can be positioned during insertion into the chamber and prevented in the Kammerplatteam further slipping.
  • the groove can be used as a terminal block to support the individual aluminum planks with additional Gurtung, which compared to known steel channel boards, which have only one hole for striking, allows greater versatility.
  • the channel dikes In order to make the channel dikes as durable as possible, it should be made of high-strength aluminum or aluminum alloy, preferably AlZn 4.5 Mg 1 according to DIN 1725 with a yield strength above 290 N / mm 2 and a breaking strength above 350 N / mm 2 .
  • the channel boards are preferably made of high-strength aluminum / aluminum alloy with the strength of steel or break-proof aluminum alloy for a long service life.
  • the cross-section of the channel dumbbells in the cross-sectional plane oriented transversely to its plank longitudinal direction has a plurality of cross-sectional segments oriented in different directions in this cross-sectional plane. These are preferably comparatively thin-walled cross-sectional segments in comparison to the cross-sectional dimensions in the cross-sectional longitudinal and width directions. Within the cross-sectional plane, one or more of these segments can have an almost arbitrary course, for example straight or curved, for example also rounded. In this case, the segments integrally connected to one another preferably preferably form a generally wave-like course of the channel edge profile in a broad sense of the word, wherein an essentially at least substantially rectangular waveform or trapezoidal waveform is preferably intended as the basic shape.
  • the wall thickness of the channel dumbbells may be on the order of a few millimeters, for example, be about 4 or 6 mm in different cross-sectional segments, but other wall thicknesses would be possible.
  • the wall in cross-section wave-like profile of the channel planks, the wall extends not only in a so-called. Cross-sectional longitudinal direction, but also directed to crosswise wave or stepwise between the two profile pages repeatedly back and forth.
  • the undercut groove is provided on a cross-sectional segment extending at least substantially in or parallel to a cross-sectional longitudinal direction, which as a U-web with two cross-sectional segments forming U-legs has a first, preferably with respect to the cross-sectional longitudinal direction forms a central, substantially U-profile-like cross-sectional area, wherein the groove and the U-profile-like cross-sectional area are open to opposite profile sides.
  • the cross-sectional segment associated with the groove has a flat wall surface, this can serve as a guide surface when inserted into the chamber of a chamber plate.
  • the wall thickness of this cross-sectional segment is smaller than the depth of the groove provided thereon, wherein the groove depth may even be in the range of a multiple of the wall thickness.
  • the cross-sectional segment can have the said groove in the region of a projection or bulge which extends as a border of the groove from the U-web or from the corresponding cross-sectional segment into the hollow interior of the U-profile-like cross-sectional region ,
  • the cross-section of the channel boards in its cross-sectional longitudinal direction in the region of its two longitudinal ends each include an end U-profile-like cross-sectional area, said two cross-sectional areas depending on at least substantially in or parallel to the cross-sectional longitudinal direction extending U-web and each have two adjoining U-legs and are open to the same profile or cross-sectional side, wherein their respective, in the cross-sectional longitudinal direction of the cross-section center facing U-legs in a at least substantially in or parallel to the profile longitudinal direction extending cross-
  • channel boards can be achieved in cross-sectional direction by suitable choice of the dimensions of a vote to the chamber width to achieve a low-play recording.
  • the channel boards are then quasi self-centering and self-guiding in cross-section transverse direction or chamber width direction.
  • Such channel boards can be used in the chamber or in the receiving gap of chamber plates, which have no separate guides for the channel boards.
  • the aluminum planks can be set at any point interlocking in it and are previously aligned alternately rotated by 180 ° in cross-section, thereby automatically forming an overlapping and dense Verbauwand,
  • a compact design of the channel planks is achieved if ever a U- Thighs of the aforementioned mean, substantially U-profile-like cross-sectional area at the same time forms a U-leg of one of the two end-side U-profile-like cross-sectional areas, that is identical to this.
  • Such a configuration also advantageously allows the two moments of resistance against bending to be determined with respect to a geometric reference axis that extends in or parallel to the cross-sectional longitudinal direction through the cross-sectional center of gravity, which is the quotient of the cross-sectional area moment of inertia assigned to the reference axis and one of the assigned cross-sectional edge distances result, are equal to each other or substantially the same size.
  • this reference axis therefore, the so-called upper resistance moment and the so-called lower resistance moment can be practically compensated, which in turn offers advantages for the above-described alternately twisted installation of 180 °.
  • the chamber plate on one side of the plate in the region of both longitudinal ends connecting means preferably for connecting each of a length-adjustable support strut (eg., So-called. Channel strut) having.
  • a length-adjustable support strut eg., So-called. Channel strut
  • the chamber plate is made of aluminum and / or aluminum alloy. This results in a lower weight, so that the chamber plate is easier to handle.
  • An expedient development provides that the chamber walls are made of light metal (in particular aluminum or aluminum alloy) produced inside hollow box sections, as shown in more detail in the description of the figures. In this way, high stability can be achieved while maintaining low weight.
  • the first, the connecting means facing chamber wall in the region of its two longitudinal ends each positively enters into a recess of each post and is attached thereto
  • the second, the connection means facing away from the chamber wall in the region of its two longitudinal ends each form-fitting in a recess each of a support profile occurs and is attached thereto
  • the two support sections in pairs surround the two posts in sections, with holes in the support profiles and in the posts to the releasable connector, preferably by means of locking pins, mutually matching overlap.
  • Such a chamber plate thus has a substantially two-part structure, ie can be disassembled, so that the components can be easily transported due to their respective relatively lower individual weight.
  • the two chamber walls, the posts and the support profiles may be at least substantially made of aluminum and / or aluminum alloy, so that the chamber plate as a whole due to their low weight of people without heavy lifting means (eg. Excavator) can be handled.
  • the connecting means facing chamber wall with its two posts to the EP 0 238 783 B1 known walls for digging graves.
  • the corresponding walls of the trench shoring unit described there are spaced apart in the trench opposite one another, hollow and have inner supporting webs.
  • Each two walls are supported by length-adjustable struts against each other and are positively inserted in the region of their transverse edges in side shoe lasts.
  • the shoe strips which in the sense of the present invention are the so-called posts, are composed of a U-profile and a T-shaped outgoing foot of this, whose one grabenwand Weger T-leg in conjunction with the T-web and extending parallel to the T-leg U-web forms the recess for the entry of the partial wall transverse edge and the other T-legs extending freely in the direction away from the partial wall trench wall side, said a partial wall surface overlapping U-legs of U-profile projecting flanges or connections to attack the struts.
  • EP 0 238 783 B1 The revelation of EP 0 238 783 B1 is hereby incorporated in full in the present application. From EP 0 238 783 B1 known chamber wall can be used either in the manner described there or according to the invention as part of a chamber plate, whereby the versatility of these chamber walls increases and a lower storage is possible.
  • the embodiment of the chamber plate according to claim 1 provides that the two facing each other, the space for the channel boards bordering wall surfaces have no protruding from the wall level guides for channel planks.
  • each one L-leg to the holes of the post aligned holes for releasable plug connection in particular by means of socket pins, having.
  • each one inner and one outer chamber wall can be connected and secured with four locking pins.
  • the chamber plate and the one or more or all channel boards are each at least substantially made of aluminum and / or aluminum alloy .
  • FIG. 1 shows a channel edge 1 for a chamber plate installation unit according to the invention in accordance with a preferred exemplary embodiment.
  • its length in plank lengthwise direction D is 2.5 m, but could also be longer or shorter (for example, 1 m or 2 m in length).
  • the example chosen is an extruded profile.
  • FIG. 2 shows the view of a perpendicular to the plank longitudinal direction D cross-sectional plane.
  • the cross section of the channel boards 1 comprises a plurality of cross-sectional segments, which are initially uniform in each case are provided with the reference numeral 2.
  • these extend as rectilinear wall sections in mutually different directions of the cross-sectional plane and merge into one another at their ends in such a way that a profile-like, in the example trapezwellenartiger, cross-section of the channel boards 1 results.
  • the cross-sectional length a in the longitudinal direction of the cross-section L is 215 mm and the cross-sectional width b measured perpendicular thereto, ie in cross-sectional transverse direction Q, is 50 mm.
  • the ratio of cross-sectional width b to cross-sectional length a of 0.23 is about 1/4.
  • This ratio is significantly greater than the ratio of cross-sectional width to cross-sectional length typically encountered with steel channel boards (in practice the dimension referred to herein as the cross-sectional length is also referred to as the so-called profile width and the dimension referred to herein as the cross-sectional width is referred to as the so-called profile height).
  • this ratio is typically in the range of 0.11 to 0.14.
  • the channel planks also have a different route from steplike channel planks with regard to this dimensional ratio.
  • the groove 4 extends parallel to the plank longitudinal direction D along the entire length of the channel boards 1.
  • the cross-sectional segment 3 in two divided to two groove sides, mutually equal length segment sections divided.
  • the undercut, ie wider in width relative to the groove opening enlarged groove cross-section is bounded by a wall 5 like a frame, which forms a projecting from the cross-sectional segment 3 projection 6.
  • the groove 4 can serve as a multifunctional connection for the detachable fastening of various desired aids by means of a plug screw 7, the screw head 8 of which can be inserted into the groove 4 in a rotationally positive manner from the end faces, ie, can not be rotated therein.
  • the screw shaft 9 passes through a hole in a leg 10 of an L-profile-like holding part 11 and through the groove opening out of the groove 4 to the outside.
  • a handwheel 12 bolt 13 is screwed with end workedem support ring 14.
  • the screw head 8 according Fig. 14 inserted from above into the groove 4, wherein the leg 10 is seated on the cross-sectional segment 3.
  • the channel boards 1 can be easily raised or lowered by a person. If, not deviating from the example, no angular, but provided, for example, a flat holding part, an aid can be attached to practically any position of the groove 4 and then released again. For example. could also be completely dispensed with the holding part 11 and by means of the plug screw 7 only the aid formed from handwheel 12, pin 13 and support ring 14 are clamped in any groove position, for example. To form a so-called.
  • Stopper when inserting into a chamber plate forms a stop and prevents slippage of the channel boards 1.
  • Stopper In reverse insertion position in a chamber plate, ie not for Grabenmitte pointing groove opening, it can, for example, an additional strapping be clamped.
  • the adjacent to the groove 4 cross-sectional segment 3 forms in the in FIG. 2 profile cross-section shown as a U-web 3 'with two end-connected, also provided with the reference numeral 16 cross-sectional segments, the U-legs 16' form, a first, with respect to the cross-sectional longitudinal direction L middle, substantially U-profile-like cross-sectional area 17.
  • the wall thickness c of the cross-sectional segments extending substantially in the profile transverse direction Q 4mm and the wall thickness d of the cross-sectional longitudinal direction L extending cross-sectional segments 6mm and the depth t of the undercut groove cross section 11mm.
  • the cross section of the channel boards 1 in its cross-sectional longitudinal direction L in each case comprises an end-side U-profile-like cross-sectional area 18 in the region of its two longitudinal ends.
  • Both cross-sectional areas 18 each have an at least substantially parallel to the cross-sectional longitudinal direction L extending U-web 19 'and two adjoining U-legs 20' and are open to the same profile side as the groove 4. It is clear from the above that the respective U-limb 20 'of the end-side cross-sectional regions 18 facing the middle of the profile is identical, ie identical, to one of the U-legs 16' of the middle cross-sectional region 17.
  • the respective free end 21 of the end U-legs 20 ' is located in a cross-sectional transverse direction Q measured distance e from the outside of the profile segment 3.
  • the distance e is 6mm, ie corresponds to the wall thickness d of the U- Webs 19 'of the end U-profile-like cross-sectional areas 18. This allows an overlapping engagement of adjacent channel boards in a chamber plate in which the U-webs of the various channel boards are aligned longitudinally.
  • a geometric reference axis 22 is shown, which is parallel to the cross-sectional longitudinal direction L through the cross-sectional center of gravity S extends.
  • the profile cross-section of the channel dumbbells is designed or dimensioned such that the two resistance moments against bending, which result as a quotient of the reference moment 22 associated area moment of inertia and each one of the associated cross-sectional edge distances 23, 24 are equal to each other in elwa, by having, for example, in terms of value, a relative deviation of, for example, only 5% to 10%.
  • an inventive trench shoring unit 25 is presented according to a preferred embodiment.
  • This comprises two mutually parallel spaced chamber plates 26, which are identical to each other and supported by means releasably attachable thereto support struts 27 against each other.
  • Each chamber plate 26 comprises two mutually parallel spaced chamber walls 28 and 29.
  • the respective first chamber wall 28 is inside, ie facing the connection means 31 for the support struts 27, and the respective second chamber wall 29 is outside, ie facing away from the trench center.
  • the more detailed construction of the chamber plates 26 is for the selected embodiment in the FIGS. 6 and 7 shown.
  • the facing each other in the chamber wall surfaces 28 ', 29' define a parallel surface a gap 30 which is suitable for receiving a plurality of channel boards 2.
  • the chamber plate 26 characterized by the imaginary departure, shown shortened.
  • FIGS. 8 to 10 illustrate the chamber wall 28 in the region of its two longitudinal ends each form-fitting manner in a recess 32 each of a post 33.
  • the chamber wall 28 is composed of a respective upper and lower partial wall 34, which in each case with extruded box sections made of aluminum that shown by means of the departure inside hollow cross-section is.
  • the parallel profile walls on box inside extending support ribs 35 in conjunction.
  • the longitudinal edges of the partial walls 34 form on one side a groove 36 and on the other side a spring 37, which are each designed to be roof-shaped, so that a stabilizing engagement is produced on the butt joint 38.
  • the two partial walls 34 are fixedly attached to the posts 33 by means of welds 39, respectively.
  • the walls 28 and 29 are made of the aluminum alloy AlMgSi1.
  • the posts 33 are made in the example of the aluminum alloy AlZn4.5Mg1.
  • both partial walls 40 each by means of welds 39 at the support profile 43 are firmly attached.
  • the chamber wall 29 has a slightly greater length compared to the chamber wall 28.
  • each post 33 has a extending in its longitudinal direction, the chamber wall 28 overlapping U-profile-like connection 46 also U-profilartigem cross-section, both U-legs 47 have the pairs aligned holes 41.
  • each support profile 43 has an L-profile-like connection 48 extending in its longitudinal direction, which in the assembled state of the chamber plate (cf. FIGS. 6 and 7 ) with its two L-legs 49,50 inside positively against the U-shaped connection 46 of the post 33 occurs.
  • the extending transversely to the chamber wall plane L-leg 50 has spaced apart in the vertical direction of holes 44 which are in the mounting position to the vertically spaced apart holes 41 of the post 33 in alignment with the releasable connector by means of in FIG. 6 . 7 shown locking pin 45th
  • FIG. 7 shows mounting situation is still another support between post 33 and support profile 43 recognizable. This takes place on the part of the support profile 43 in the region of a throat 51, which is formed between a wall 52 extending from the recess 42 and extending transversely to the chamber wall plane and a wall 53 oriented diagonally inwards in cross section.
  • this system takes place at the free end 54 of a beyond the longitudinal end of the chamber wall 28 also flying freely in the longitudinal direction extending wall 55.
  • the other L-leg 49 of the connection 48 forms the U-profile-like connection 57 for the detachable fastening of the support struts 27, with legs 56 projecting at right angles from the outside.
  • FIG. 6 and 7 shows that the other L-leg 49 of the connection 48 forms the U-profile-like connection 57 for the detachable fastening of the support struts 27, with legs 56 projecting at right angles from the outside.
  • FIG. 7 Figure 4 also shows that the two facing wall surfaces 28 'and 29' overlie the gap 30 in parallel, with no guides for channel boards 1 projecting beyond these wall surfaces 28 'and 29', but the wall surfaces 28 ', 29' are smooth.
  • the support struts 27 each have at their two longitudinal ends a U-profile 58. In each of its two legs 59, a bore 60 is provided, which are aligned in pairs.
  • the inner cross section of the U-profile 58 is adapted in terms of dimensions to a low-play recapture of the terminal 31 on the support section 43.
  • Both legs 56 of the terminal 57 and the connecting means 31 have vertically spaced holes 61 which are aligned in pairs between the two legs 56.
  • a support strut 27 to the terminal 57 of a chamber plate 26 the two holes in the U-profile 27 in the desired mounting height with two holes 61 are brought into alignment overlap and plugged through a pin 62 to secure this position, as for example. In FIG. 4 is shown.
  • FIG. 6 illustrates chamber plate 26 supplemented by one or more channel boards 1, this forms a so-called.
  • Chamber panel installation unit From two such chamber plate shoring units and two support struts 27 is in FIG. 3 shown trench assembly unit 25 formed.
  • FIG. 5 schematically shows that the channel boards 1 can extend with its lower edge to below the lower edge of the chamber plate 26 to stepwise accompany the trenching, in the plan view of FIG. 4 is indicated schematically that the width of the formed in the chamber plates 26 spaces 30 is only slightly larger than the width of the channel boards 1 is selected.
  • the channel boards 1 have a width of 50mm and the gaps 30 have a width of 55mm.
  • the components described above is in terms of their choice of material and their low weight also speak of a chamber plate lightweight construction.
  • Fig. 16 shows a second preferred embodiment of a turn designated by the reference numeral 25 trench assembly unit, in which also the respective to previous figures the same or corresponding components have been given the same reference numerals.
  • the trench shoring unit serves to laterally support a trench extending in the longitudinal direction of a first pipe 63, which extends outwards the chamber plates 26 and channel boards 1 subsequent soil is not shown.
  • a second tube 64 extends, which thus also at right angles through the trench.
  • both the completely and the partially used channel boards 1 correspond in terms of construction and nested arrangement of the embodiment described with reference to the preceding figures. It can be seen that in each chamber plate three mutually engaged channel boards 1 are only used up to the shown comparatively smaller depth in the chamber plates 26. To prevent further lowering down, a so-called.
  • Head piece 65 is clamped in the groove 4 of the channel dumbbings at correspondingly suitable longitudinal position, so that it is due to its lateral projection on the top of the respective associated chamber plate 26 at each of these channel boards supported.
  • Fig. 16 shows that, according to the nested interlocking in the viewing direction front chamber plate 26, the two edge side of the affected three channel boards 1 with its groove 4 and consequently with the head piece 65 to the trench outer side, while the groove 4 of the central channel boards 1 with its head 65th to the ditch center points. In the direction of the rear chamber plate this is reversed.
  • the bore 70 is a cross-section adapted, ie in the circumferential direction positively engaging hex nut 72 is inserted up against the stop formed by the bore taper, from the opposite end a socket screw 7 is screwed into the hex nut 72.
  • the head 8 of the screw 7 has the in the FIGS. 21 to 23 shown cross-sectional shape, with each other two comparatively longer longitudinal sides in a comparatively smaller distance and two perpendicular, relatively shorter longitudinal sides 74 with respect to each other at a relatively greater distance with respect to the longitudinal center.
  • the two shorter longitudinal sides are rounded against each other diagonally opposite edge regions 75.
  • the channel dumbbells 1 is held in the desired height for fixing in the chamber plate 26 and pushed the head piece 65 until it rests against the top of the chamber plate.
  • the housing 67 is gripped and rotated, so that the plug screw is screwed deeper until the end face 75 is clamped against the channel boards 1 and the head piece 65 is thereby fixed in this position.
  • the head is 8 of the in Fig. 22 shown position in which the screw 7 can be easily moved in the groove 4, automatically in the in Fig. 23 shown rotated rotational position, in which a particularly high clamping force results.
  • FIG. 16 Another difference of in Fig. 16 shown trench assembly unit 25 compared to Fig. 3 lies in the fact that the channel boards 1 below the chamber plates 26 facing the trench center with each one perpendicular to them, ie, parallel to the trench direction, running formwork beams 76 are connected.
  • the this attachment is particularly of the Figures 17 and 18 illustrated.
  • clamping pieces 77 which consists essentially of a bent sheet metal piece 78 with a central bore and a plug-in inserted therein from the concave side screw 7, which the in Fig. 21 shown or may have a comparable head shape, are formed.
  • the plug screw 7 is inserted with its head into the groove 4 until a narrow side of the sheet metal piece 28, which extends transversely to the curvature of the sheet, a protruding edge edge 79 of the formwork support 76 engages over.
  • a wing nut 80 (or the like) is screwed until the desired clamping action is created.
  • the narrow edge surfaces of the formwork support 76 extends in the longitudinal direction of a T-profile-like groove 81, whose cross section corresponds to the grooves 4.
  • clamping pieces 77 are inserted, so that the sheet metal pieces 78 engage over an L-profile-like mounting flange of another, adjustable by means of threaded engagement in their length channel strut 83.
  • Gurtung the wall formed from the channel boards 1 can be supported below the chamber plates 26 against the opposite channel wall panel.
  • the formwork support 26 may be made of light metal, preferably made of aluminum or aluminum alloy.

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Claims (17)

  1. Unité de soutènement à plateaux chambrés, comprenant au moins un plateau chambré (26) et plusieurs palplanches (1), dans laquelle le plateau chambré (26) présente deux parois de chambre espacées parallèles (28, 29) qui, avec leurs surfaces de paroi en regard l'une vers l'autre (28', 29'), délimitent un espace (30) bordé par des surfaces parallèles destiné à recevoir les palplanches (l), caractérisée en ce qu'une section transversale perpendiculaire à sa direction longitudinale de planches (D) des palplanches (1) présente, dans la zone de chacune de ses deux extrémités longitudinales dans la direction longitudinale de la section transversale (L), une zone de section transversale d'extrémité à profil en U (18), dans laquelle ces zones de section transversale (18) comprennent chacune une traverse de U (19') s'étendant au moins sensiblement parallèlement à la direction longitudinale de section transversale (L) et deux branches de U (20') reliées à celle-ci, et s'ouvrent vers le même côté de profilé, dans laquelle chacune des branches de U (20') en regard du milieu de section transversale dans la direction longitudinale de section transversale (L) se raccorde à un segment de section transversale (3) s'étendant au moins sensiblement parallèlement à la direction longitudinale de section transversale (L), dans laquelle l'extrémité libre (21) de chacune des branches de U (20') à l'opposé du milieu de section transversale dans la direction longitudinale de section transversale (L) se trouve à une distance (e) mesurée transversalement par rapport à la direction longitudinale de section transversale (L) depuis le côté extérieur à l'opposé du milieu de section transversale du segment de section transversale (3) s'étendant au moins sensiblement parallèlement à la direction longitudinale de section transversale (L), qui est identique ou un peu supérieure à l'épaisseur de paroi (d) de la traverse de U (19') de la zone de section transversale d'extrémité à profil en U (18), et dans laquelle les deux surfaces de paroi (28', 29') tournées l'une vers l'autre et bordant l'espace (30) destiné aux palplanches (1) ne présentent aucun guide en saillie depuis le plan de paroi pour les palplanches (1).
  2. Unité de soutènement à plateaux chambrés selon la revendication 1, caractérisée en ce que la palplanche (1) est fabriquée au moins essentiellement en aluminium et/ou alliage d'aluminium.
  3. Unité de soutènement à plateaux chambrés selon la revendication 1 ou la revendication 2, caractérisée en ce que le segment de section transversale (3) présente au moins une rainure en contre-dépouille (4), en particulier une rainure en contre-dépouille à profil en T, qui s'étend parallèlement à la direction longitudinale de planches (L) de la palplanche (1) et en particulier en continu le long de toute la longueur du palplanche (1).
  4. Unité de soutènement à plateaux chambrés selon la revendication 3, caractérisée en ce que sont prévus un ou plusieurs moyens auxiliaires pour une fixation de manière amovible à la rainure (4) au moyen d'un boulon enfichable (7), tels que des moyens de butée, des poignées (15), des éléments d'arrêt, des moyens de sanglage.
  5. Unité de soutènement à plateaux chambrés selon l'une des revendication 3 et 4 ou les deux, caractérisée en ce que la rainure (4) est prévue au niveau du segment de section transversale (3) s'étendant au moins sensiblement parallèlement à la direction longitudinale de section transversale (L) qui, en tant que traverse de U (3') avec deux segments de section transversale (16) reliés à celui-ci et formant chacun une branche de U (16'), forme une zone de section transversale (17) sensiblement à profil en U en particulier médiane par rapport à la direction longitudinale de section transversale (L), dans laquelle la rainure (4) et la zone de section transversale à profil en U (17) sont ouvertes vers des côtés de profilé opposés l'un à l'autre.
  6. Unité de soutènement à plateaux chambrés selon une ou plusieurs des revendications 3 à 5, caractérisée en ce que l'épaisseur de paroi (d) du segment de section transversale (3) est plus petite que la profondeur (t) de la rainure (4) prévue sur elle, et une paroi (5) de la rainure (4) s'étend sous la forme d'une saillie (6) depuis la traverse de U (3') jusque dans l'intérieur de la zone de section transversale à profil en U (17).
  7. Unité de soutènement à plateaux chambrés selon une ou plusieurs des revendications précédentes, caractérisée en ce que chaque branche de U (16') de la zone de section transversale médiane sensiblement à profil en U (17) forme également une branche de U (19') de l'une des deux zones de section transversale d'extrémité à profil en U (18).
  8. Unité de soutènement à plateaux chambrés selon une ou plusieurs des revendications précédentes, caractérisée en ce que dans la section transversale de la palplanche, dans un plan de section transversale orienté transversalement à sa direction longitudinale de planches pour un axe de référence géométrique (22), qui s'étend parallèlement à la direction longitudinale de section transversale (L) à travers le centre de gravité de section transversale (S), les deux moments résistants, qui résultent d'un rapport du moment d'inertie de section transversale associé à l'axe de référence (22) et de chacune des distances au bord de section transversale (23, 24) associées, sont égaux ou sensiblement égaux.
  9. Unité de soutènement à plateaux chambrés selon une ou plusieurs des revendications précédentes, caractérisée en ce que dans la section transversale de la palplanche, dans un plan de section transversale orienté transversalement à la direction longitudinale de planches, le rapport de la largeur de section transversale (b) mesurée dans la direction transversale de la section transversale (Q) par rapport à la longueur de section transversale (a) mesurée dans la direction longitudinale de la section transversale (L) orientée perpendiculairement à celle-ci est dans la plage de 0,2 à 0,3, en particulier d'environ 0,25, et est en particulier de 0,23 ou 0,24.
  10. Unité de soutènement à plateaux chambrés selon une ou plusieurs des revendications précédentes, caractérisée en ce que le plateau chambré (26) présente des moyens de raccordement (31) sur un côté de plateau dans la zone des deux extrémités longitudinales, en particulier pour le raccordement d'une entretoise de support respective (27) réglable en longueur.
  11. Unité de soutènement à plateaux chambrés selon une ou plusieurs des revendications précédentes, caractérisée en ce que le plateau chambré (26) est fabriqué en aluminium et/ou en alliage d'aluminium.
  12. Unité de soutènement à plateaux chambrés selon au moins la revendication 10, caractérisée en ce que la première paroi de chambre (28) faisant face aux moyens de raccordement (31), dans la zone de ses deux extrémités longitudinales, pénètre avec coopération de formes dans une concavité (32) d'un poteau respectif (33) et y est fixée, en ce que la deuxième paroi de chambre (29) du côté opposé aux moyens de raccordement, dans la zone de ses deux extrémités longitudinales, pénètre avec coopération de formes dans une concavité (34) d'un profilé de support (43) et y est fixée, et en ce que dans l'état assemblé du plateau chambré (26), les deux profilés de support (43) viennent localement en prise de manière appariée avec les deux poteaux (33), dans laquelle des perçages (44, 41) dans les profilés de support (43) et dans les poteaux (33) sont en chevauchement en correspondance mutuelle pour une liaison par enfichage amovible, en particulier au moyen de boulons enfichables (45).
  13. Unité de soutènement à plateaux chambrés selon au moins la revendication 12 et en particulier selon une ou plusieurs des autres revendications précédentes, caractérisée en ce que les deux parois de chambre (28, 29), les poteaux (33) et les profilés de support sont fabriqués en aluminium et/ou en alliage d'aluminium.
  14. Unité de soutènement à plateaux chambrés selon la revendication 12 et en particulier selon une ou plusieurs des autres revendications précédentes, caractérisée en ce que le poteau (33) présente un raccord (46) à profil en U chevauchant la première paroi de chambre (28) et s'étendant dans sa direction longitudinale, dont les branches de U (47) présentent des alésages (41) alignés mutuellement par paire, et en ce que le profilé de support (43) présente un raccord à profil en L (48) s'étendant dans sa direction longitudinale qui, dans l'état assemblé du plateau chambré, vient en appui avec coopération de formes avec les deux branches de L côté intérieur, contre le raccord à profil en U (46) du poteau (33), dans laquelle l'une des branches de L (50) présente des perçages (44) alignés avec les perçages (41) du poteau (33) pour une liaison par enfichage amovible, en particulier au moyen de boulons enfichables.
  15. Unité de soutènement à plateaux chambrés selon la revendication 14 et en particulier selon une ou plusieurs des autres revendications précédentes, caractérisée en ce que l'autre branche de L (49) du raccord à profil en L (48), avec des branches faisant saillie perpendiculairement vers l'extérieur (56), forme un raccord à profil en U (57) pour la fixation amovible d'entretoises de support (27), dans laquelle il est en particulier prévu que la branche (56) faisant saillie vers l'extérieur depuis le raccord à profil en L (48), dans une direction de saillie transversale au plan de plateau, vienne de manière appariée en chevauchement avec les branches de U (47) des poteaux (33) .
  16. Unité de soutènement à plateaux chambrés selon une ou plusieurs des revendications précédentes, caractérisée en ce que plusieurs palplanches (A) selon la revendication 1 formées de manière rotosymétrique sont agencées de manière alternée selon une section transversale tournée d'un demi-tour dans la chambre du plateau chambré (26).
  17. Unité de soutènement à plateaux chambrés selon la revendication 10 et en particulier selon une ou plusieurs des autres revendications précédentes, caractérisée en ce qu'au moins une unité de soutènement à plateaux chambrés supplémentaire selon une ou plusieurs des revendications précédentes est prévue, et les deux plateaux chambrés (26) des deux unités de soutènement à plateaux chambrés sont agencés espacés l'un de l'autre et sont reliés au moyen de supports réglables en longueur (27) à une unité de soutènement d'excavation.
EP10153571.4A 2009-04-24 2010-02-15 Palplanche et unité de blindage par planches Active EP2246480B1 (fr)

Priority Applications (1)

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DE200910003821 DE102009003821A1 (de) 2009-04-24 2009-04-24 Kanaldiele und Kammerplatten-Verbaueinheit

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EP13182816.2A Division-Into EP2677085B1 (fr) 2009-04-24 2010-02-15 Palplanche et unité de blindage par planches

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EP2246480A2 EP2246480A2 (fr) 2010-11-03
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DE202010000447U1 (de) * 2010-03-23 2010-06-02 Thyssenkrupp Bauservice Gmbh Verbauvorrichtung für den Verbau von Gräben
EP2453062B1 (fr) * 2010-11-16 2016-02-17 Marti AG Bern, Moosseedorf Procédé et système d'étai pour travaux de terrassement
DE102015109106B4 (de) * 2015-06-09 2024-02-01 Manfred Passler Verbauvorrichtung
DE102015017177B4 (de) 2015-10-15 2024-06-27 Friedr. Ischebeck Gmbh Grabenverbau-Einheit
DE102015117588A1 (de) 2015-10-15 2017-04-20 Friedr. Ischebeck Gmbh Wandmodul, insbesondere für eine Grabenverbau-Einheit, und Grabenverbau-Einheit
FR3083808B1 (fr) 2018-07-12 2020-06-19 Marc Lefebvre Systeme de blindage d'une tranchee
EP3617413A1 (fr) * 2018-08-27 2020-03-04 Acosim Ag Élément de renforcement pour goulotte de drainage
CN117051860B (zh) * 2020-06-28 2026-01-06 宏润建设集团股份有限公司 用于深层管道清障的清障方法
CN112878336B (zh) * 2021-03-24 2022-04-12 凡天建筑科技有限公司 一种基坑支护装置以及基坑支护方法
FR3122192B1 (fr) * 2021-04-27 2023-11-17 Sade Cie Generale De Travaux Dhydraulique Blindage modulaire pour excavation de chantier

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DE3762531C5 (de) 1986-02-27 2006-01-26 Friedr. Ischebeck Gmbh Grabenverbau-Einheit.
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Also Published As

Publication number Publication date
EP2677085A3 (fr) 2014-01-22
EP2677085A2 (fr) 2013-12-25
EP2677085B1 (fr) 2018-01-10
EP2246480A2 (fr) 2010-11-03
ES2659036T3 (es) 2018-03-13
ES2664579T3 (es) 2018-04-20
DE102009003821A1 (de) 2010-10-28
EP2246480A3 (fr) 2013-01-30

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