EP3412848A2 - Fosse de montage à double paroi des éléments de paroi - Google Patents

Fosse de montage à double paroi des éléments de paroi Download PDF

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Publication number
EP3412848A2
EP3412848A2 EP18175698.2A EP18175698A EP3412848A2 EP 3412848 A2 EP3412848 A2 EP 3412848A2 EP 18175698 A EP18175698 A EP 18175698A EP 3412848 A2 EP3412848 A2 EP 3412848A2
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EP
European Patent Office
Prior art keywords
wall
pit
elements
side wall
wall elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18175698.2A
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German (de)
English (en)
Other versions
EP3412848A3 (fr
Inventor
Hans Balzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Balzer GmbH and Co KG
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Balzer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Balzer GmbH and Co KG filed Critical Balzer GmbH and Co KG
Publication of EP3412848A2 publication Critical patent/EP3412848A2/fr
Publication of EP3412848A3 publication Critical patent/EP3412848A3/fr
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
    • E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
    • E04H5/06—Pits or building structures for inspection or services

Definitions

  • the invention relates to a mounting pit according to the preamble of claim 1, a method for manufacturing such a mounting pit, and a method for adjusting such a mounting pit.
  • Assembly pits are used by workshops or manufacturing plants for the assembly, repair or maintenance of motor vehicles, rail vehicles, machinery or machine parts.
  • the staff can work in a comfortable upright position under the appropriate vehicles and machines.
  • prefabricated assembly pits so-called prefabricated assembly pits, with cassettes made of steel, which are used in a Bodenaus fundamentalung on site.
  • a mounting pit of this genus is for example from the document DE 4324339 A1 known.
  • the present invention seeks to provide a mounting pit, which is as easy to produce and at the same time as stable as possible.
  • installation pits with different dimensions should be as variable as possible, simple and inexpensive to produce.
  • a built-in mounting pit should be able to reliably remove the loads registered on the hall floor and in particular not laterally buckling.
  • a mounting pit in particular precast mounting pit comprising a usable in a bottom recess one or more pit body, in particular made of steel, with a circumferential side wall and a bottom, characterized in that at least one double-walled trained portion of the side wall more comprises interconnected wall elements.
  • a portion of the side wall is double-walled insofar as it comprises an inner wall and an outer wall, which are in particular spaced from each other and in particular define an intermediate cavity into which a filler material, preferably curable filler material such as concrete, can be filled.
  • the side wall comprises, in particular, a plurality of double-walled sections and is preferably continuous or substantially continuous double-walled.
  • the side wall may also comprise several non-contiguous double-walled sections.
  • the pit body delimits a pit interior which is accessible through a group opening formed on an upper side, wherein a side wall extends in height, in particular up to the region of the pit opening.
  • the side wall extends around the pit interior, wherein a pit body can be composed of a plurality of mutually firmly connectable pit modules.
  • the pit body has a cuboid basic shape, wherein the side wall is preferably double-walled along the longitudinal sides and end faces.
  • the bottom of the pit body is double-walled, wherein cavities in the side wall and the bottom are preferably connected to each other.
  • a plurality of wall elements are connected to one another in such a way that they form the side wall at least partially double-walled.
  • the pit body and in particular the side wall and / or the wall elements are preferably made of steel, but may also be made of a similar stiff and in particular corrosion-resistant material.
  • the wall elements are preferably welded together, but may also be releasably connected to each other.
  • the wall elements are prefabricated in one piece, in particular as one-piece parts.
  • a double-walled portion of the side wall is self-supporting.
  • the mounting pit according to the invention is used in particular for installation, repair or maintenance of vehicles.
  • a mounting pit according to the invention has the advantage that a double-walled section of a side wall, or a continuous double-walled side wall, has a high structural rigidity, in particular against lateral buckling.
  • a side wall comprising or consisting of a plurality of interconnected wall elements is easy to manufacture because the wall elements can be easily and inexpensively manufactured as single parts due to their smaller size, and because of their relatively light weight, especially in prefabrication of the pit body , are easy to handle.
  • mounting pits of various sizes, in particular different widths or lengths can be manufactured variably by connecting a suitable number of wall elements, preferably of standardized dimensions, to form a side wall.
  • a wall element in each case forms an intermediate wall of the side wall.
  • the intermediate wall connects the inner wall and the outer wall of the side wall to each other.
  • the intermediate wall may also include an acute angle with the outer or inner wall.
  • the intermediate walls are preferably made of metal, in particular steel.
  • the partition walls extend in a height direction preferably into the region of the pit opening, or up to a pit edge, wherein the intermediate walls may have protruding head elements on an upper side. Partitions have the advantage that a double-walled portion of the side wall is stiffened, especially against lateral buckling.
  • a plurality of wall elements each bound one wall chamber at least partially, in particular together with an inner wall and / or an outer wall of the side wall.
  • a wall chamber has a hollow profile which is preferably closed in cross-section.
  • the intermediate walls divide the side wall, in particular the cavity between an inner and an outer wall, in wall chambers.
  • a wall chamber is delimited in particular by two partitions as well as an inner wall and an outer wall.
  • a wall chamber may be at least partially filled with insulating material, such as insulating foam or insulating mats, for example, to prevent condensation on the inner wall.
  • Wall chambers have the advantage that they stiffen the structure of the side wall.
  • the wall chambers may be open or closed at the bottom, ie at the side facing the bottom recess.
  • the bottom of the pit body extends to the outer wall and closes the wall chambers on its underside.
  • a curing filling material such as concrete can be filled.
  • lightweight concrete preferably having a high flowability, such as, for example, a lightweight concrete of the consistency class F5 / 6 and a compressive strength class C20 / 25, is suitable as the curing filling material.
  • the wall chambers are at least partially open on their underside.
  • Such wall chambers are preferably designed to be self-supporting and can be filled with a non-hardening filling material, in particular a bulk material, for example soil, gravel, sand or similar excavated soil.
  • a non-hardening filling material in particular a bulk material, for example soil, gravel, sand or similar excavated soil.
  • At least a portion of the outer wall of the side wall is formed from a plurality of interconnected wall elements.
  • adjacent wall elements may overlap.
  • a plurality of wall elements are connected to a one-piece inner wall along a portion of the side wall, wherein the inner wall is in particular a steel plate or a steel sheet.
  • the inner wall has a uniform and smooth surface, which is particularly well paintable.
  • such an inner surface is sealed, in particular waterproof.
  • welded joints for connecting the wall elements to an outer wall need not necessarily be aftertreated, in particular sanded off or polished.
  • At least one section of the inner wall of the side wall is formed from a plurality of interconnected wall elements.
  • adjacent wall elements may overlap.
  • a plurality of wall elements are connected to a one-piece outer wall along a portion of the side wall, wherein the outer wall is in particular a steel plate or a steel sheet. Has the advantage that the outer wall is tight, in particular waterproof.
  • outer wall and the inner wall of a portion of the side wall are formed of a plurality of interconnected wall elements, in particular the same wall elements.
  • a side wall, in particular juxtaposed, wall elements can be constructed, which are designed as Z-profiles or U-profiles.
  • the wall elements are angled, preferably as L-profiles, in particular as a simple angled side wall elements and / or as multiple, in particular two and / or three times, angled corner wall elements formed.
  • a corner wall element is preferably connected to a front side inner wall and a longitudinal side outer wall.
  • a simple angled wall element has in particular two legs, which enclose an angle between them, in particular bending angle, wherein the legs can have the same or different leg lengths.
  • a leg forms an intermediate wall and the other legs preferably a part of the inner or outer wall of the side wall.
  • a multi-angled wall element has in cross-section a plurality of mutually angled profile sections, the same or different angles, in particular bending angle, together, wherein the profile sections may have the same or different lengths.
  • a multi-angled wall element forms a corner portion of the side wall of double-walled, wherein in particular two adjacent profile sections form part of the outer wall of the side wall and at least one further profile section forms an intermediate wall of the side wall.
  • legs or profile sections are angled at right angles to each other.
  • Angled wall elements have the advantage that they are simple and inexpensive to produce, in particular by forming, in particular bending, originally flat wall elements, in particular sheets, preferably steel sheets, for example, have a wall thickness between 1 to 5 mm, preferably of about 3 mm.
  • the intermediate walls of the wall elements have at least one passage opening, wherein in particular a plurality of passage openings are arranged vertically one above the other.
  • the passage openings are spaced apart in the height direction.
  • the intermediate walls can also be formed as perforated, in particular as perforated plates, sections of, in particular angled, wall elements.
  • Through-holes have the advantage that the curable filling material filled in the double-walled side wall, in particular in the wall chambers, e.g. Lightweight concrete, better along the side wall, in particular between the wall chambers, can distribute. This results in a more stable connection of the filling material with the side wall and on the other hand a shorter production time.
  • the wall elements are welded together, in particular by means of at least one point, step, - and / or continuous weld, preferably along a joint between two wall elements in the height direction.
  • two wall elements arranged next to one another abut an outer wall, whereby they are welded together in sections or continuously along the joint. Only in sections, in particular pointwise or stepwise, executed welded joints reduce the number of required welds and shorten the production time. It can Fusion welding methods are used.
  • At least one weld joint preferably a fillet weld
  • a further weld joint preferably an I or V seam
  • I or V seam at least one further weld joint, preferably an I or V seam, at an obtuse joint between the two - or outer wall forming portions of two adjacent wall elements.
  • pressure welding methods in particular spot or seam welding, can be used. Welded together wall elements guarantee high rigidity of the double-walled side wall.
  • the passage opening is preferably arranged above the double-walled region of the side wall.
  • the head element can be made in one piece with the wall element, or attached thereto, in particular welded.
  • a head element extends as far as the region of the pit opening or up to a pit edge, in particular beyond the double-walled region of the side wall.
  • an edge profile preferably U-shaped or L-shaped, firmly connected, in particular welded thereto, wherein the edge profile in particular rotates around the pit opening and forms a pit edge.
  • An edge profile can have a stiffening effect.
  • a pit cover in particular a roller cover, can be mounted in an edge profile.
  • At least one reinforcing rod is provided which extends through the passage opening of at least one head element.
  • at least one reinforcing bar extends along the pit opening of the pit body.
  • a reinforcing rod preferably extends over a plurality of intermediate walls, in particular wall chambers, away, in particular along the longitudinal and / or end sides of the side wall.
  • Preferably, a total of four straight reinforcing bars are provided, namely one each along the two end and long sides. It is also conceivable for a reinforcing bar to extend along the entire side wall, in particular around the corners of the side wall, wherein a reinforcing bar is composed of sections connected to one another can.
  • the reinforcing bar runs at the height of the pit opening or a pit edge. It can be provided several, in particular parallel to each other, reinforcing rods.
  • a reinforcing rod is adapted to provide a connection between the pit body, in particular the side wall, and a hall floor, in which the mounting pit is embedded.
  • the reinforcing rod is made of structural steel or a comparable material, in particular metal or a metal alloy, and has, for example, a diameter of about 10 to 16 mm, particularly preferably about 12 mm.
  • a reinforcing rod made of structural steel is readily available and has a high stability, in particular strength, and corrosion resistance.
  • a hall or workshop floor has a floor slab made of concrete, which is usually provided with a reinforcement or reinforcement of structural steel.
  • the invention is not limited to a hall floor made of concrete.
  • the reinforcement of a hall floor can be connected to the reinforcing rod of the pit body.
  • the reinforcing rod is attached to the reinforcement of the hall floor with wire or by welding. This has the advantage that a sufficiently strong fixation with conventional building material and construction methods is achieved in a quick and easy way.
  • the pit body of the mounting pit according to the invention can be firmly connected to the reinforcement of the hall floor by means of at least one Arm istsstabs, which is preferably mounted in the upper region of the side wall of the pit body.
  • the pit body is stabilized in particular in the horizontal, but also in the vertical direction, and prevents buckling of the side walls or individual parts of the side walls after installation of the mounting pit.
  • the reinforcing rod is connected in an edge region of the passage opening, preferably on an inner surface of the passage opening, by a welded connection to the head element.
  • the reinforcing bar is fastened in each case at the upper or lower region of a, for example circular, through opening of a head element. This results in a more stable connection than when the reinforcing bar is inserted only in the through holes.
  • the expansion joint there is an expansion joint between the pit edge of the pit opening and the hall floor.
  • This expansion joint allows temperature-induced expansion of the pit edge made of steel compared to the concrete floor of the hall.
  • the expansion joint is filled by a permanently elastic plastic, such as a permanently elastic plastic from the polymers usually used.
  • the object is achieved by a method for manufacturing a mounting pit according to claim 12.
  • wall elements which are angled, in particular rolled are produced by bending along bend lines provided angled wall elements.
  • sidewall elements preferably as simply angled wall elements, in particular L-profiles
  • corner wall elements preferably as double or triple angled wall elements
  • the bending lines run parallel to each other. It is also possible to provide further, not necessarily parallel, bending lines and to produce more complex angled wall elements. In addition to bending additional processing steps for the wall elements may be provided.
  • a portion of a side wall is made single-walled, in particular consisting of an inner or outer wall, and thereafter by connecting a plurality of angled wall elements together, and in particular with the inner or outer wall, this portion of the side wall is double-walled.
  • Several prefabricated sections of double-walled side walls can be assembled to form a pit body.
  • the method has similar advantages as have already been described in connection with the mounting pit according to the invention.
  • the method may further implement some or all of the process features described in the assembly pit context.
  • wall elements are easy to produce in this way, especially as relatively small and easy to handle sub-elements that can be prefabricated and well stored to be variable depending on the desired dimensions of the mounting pit to a double-walled side wall of a pit body assembled.
  • the inventive method allows easy production of mounting pits.
  • An advantageous development of the manufacturing method according to the invention comprises producing in each case at least one passage opening in the wall elements, in particular in a region of the wall element which is provided to form an intermediate wall of the side wall after bending.
  • Through holes can be made for example by punching or laser cutting.
  • head elements are attached to the tops of the intermediate walls, in particular welded.
  • it is also possible to produce wall elements with head elements in one piece e.g. by corresponding cutting of flat sheet metal parts under formation of the head element and subsequent bending along a bending line.
  • An advantageous development of the manufacturing method according to the invention comprises attaching a reinforcing rod to a wall element, preferably through a through opening, preferably through a through opening of a head element, the wall element, and in particular the welding of the reinforcing rod with the head element.
  • the mounting pit in the assembled state of the mounting pit are a pit opening, head elements of the intermediate walls with through openings for the reinforcing rod extending therethrough and the intended hall floor approximately in one plane. Accordingly, a complete filling of the wall chambers of the side wall with a filling material is possible, while the head elements of the intermediate walls with their through openings for the penetrating Arm istsstab lie on a higher level and initially remain free. Subsequently, the reinforcing bar can be attached and connected to the reinforcement of the hall floor. Then the hall floor of the workshop can be poured, which then also covers or includes the head elements of the intermediate walls with their through openings and the penetrating Arm istsstab.
  • the pit body inserted in the bottom recess on the bottom plate is aligned with a hydraulic lifting device, which preferably comprises a hydraulic cylinder.
  • a hydraulic lifting device which preferably comprises a hydraulic cylinder.
  • support elements such as angle elements, be attached, which engages under the lifting device.
  • the lifting device could also intervene directly under the bottom of the pit body.
  • a hydraulic jack is placed on at least three corners of the pit body on the bottom plate.
  • bores are made in the bottom plate at locations where the pit body is to be attached to the bottom plate.
  • a Attachment to the bottom plate counteracts possible buoyancy forces, for example, when filling the Bodenaus Principleung with liquid concrete or when the water level should rise to the mounting pit.
  • the mounting pit is fixed in an aligned position and held by the support elements permanently in this desired position.
  • the lifting device can be removed from the BodenausNeillung so that the remaining part of the Bodenausappelung outside the pit body can be filled with excavated material.
  • the bottom gap is sealed with lean concrete.
  • a hydraulic lifting device has the advantage that the adjustment of a mounting group is very accurate.
  • FIG. 1 shows a schematic plan view, or a horizontal cross-sectional view of a mounting pit 1 according to the invention, designed here as a prefabricated assembly pit, for mounting, repair or maintenance of vehicles.
  • the pit body 10 of the mounting pit 1 is constructed symmetrically to a longitudinal axis of symmetry A.
  • the side wall 20 defines a pit opening 21 with a rectangular plan with two end and two long sides and is formed here double-walled circumferentially.
  • the side wall 20 has a double-walled construction with an inner wall 12 and an outer wall 13, wherein the inner wall 12 is formed along the longitudinal sides as a continuous longitudinal side inner wall 121 and along the front side as a continuous end side inner wall 122.
  • the spaced from the inner wall 12 longitudinal side outer walls 131 and end outer walls 132 are formed by angled wall elements 19.
  • Side wall elements 16 and corner wall elements 17 are referred to collectively as wall elements 19.
  • the double-walled side wall 20 preferably has a thickness of 10 to 40 cm, preferably 20 to 30 cm, particularly preferably about 25 cm, wherein the wall thickness can vary both in the height direction and along the circumference of the pit opening 21.
  • the wall thickness along the end faces may be different than the wall thickness along the longitudinal sides.
  • the pit body 10 may also be constructed asymmetrically, in particular with regard to the arrangement of the wall elements 19th
  • a simple angled side wall elements 16 are arranged around a bending angle ⁇ , which are formed as L-profiles, wherein a first leg intermediate walls 15 and a second leg portions of the longitudinal side outer wall 131 forms.
  • the intermediate walls 15 divide the double-walled side wall 20 in wall chambers 11.
  • a plurality of angled corner wall elements 17 are arranged, on one side double angled, namely a first and second bending angle ⁇ 1 and ⁇ 2 bent, and on the other side angled three times, namely around a first, second and third bending angle ⁇ 1 , ⁇ 2 and ⁇ 3 curved corner wall elements 17 are arranged.
  • the bending angles are all 90 °, so that the intermediate walls 15 perpendicular, ie in the T-joint, meet the inner wall 12. But there are also other, in particular varying, bending angle possible, so that intermediate walls 15 can meet obliquely on the inner wall 12 and the outer wall 13.
  • a planar middle wall element 18 is arranged at the end faces in each case.
  • the thickness of a wall element 19, which preferably consists of bent sheet steel, is for example 1 to 5 mm, preferably about 3 mm.
  • the intermediate walls 15 extend in height, in each case starting from the bottom 14 into the region of the pit opening 21, or until the pit edge 23, the z. B. is formed by a shaped as a U-shaped peripheral edge profile 24 (see FIG. 5 ).
  • the partitions are arranged, for example, at intervals of 40 to 60 cm, preferably of about 50 cm. Accordingly, the two leg lengths of an L-shaped sidewall member 16 are, for example, about 25 cm for the intermediate wall 15 and about 50 cm for the outer wall 13.
  • the wall elements 19 are connected to one another via welded connections and to the longitudinal side inner walls 121 and front side inner walls 122, wherein the welded connections in FIG. 1 are not shown to illustrate the structure of the double-walled side wall 20 of wall elements 19.
  • the wall chambers 11 have a stiffening effect on the pit body 10 and are provided with a hardening filling material, such as lightweight concrete, eg the consistency class F5 / 6 and a compressive strength class C20 / 25, from above fillable.
  • a non-hardening filling material such as earth, gravel or sand, is conceivable, wherein the wall chambers 11 are then preferably open at the bottom, in order to be able to flush out the filling material as needed.
  • FIGS. 2a and 2b show a portion of a double-walled side wall 20 according to the detail C from FIG. 1 with three interconnected wall chambers 11.
  • the longitudinal side inner wall 121 is here a continuous steel plate, in particular a steel sheet to which side wall elements 16 by means of welded joints 43, which is designed here as a double fillet weld between each intermediate wall 15 and the longitudinal side inner wall 121.
  • first and second welds 42, 43 which are designed here for example as I-seam or V-seam.
  • the welded joints 41, 42, 43 preferably do not extend over the entire height of the side wall 20, but are only partially, in particular punctiform, executed in the vertical direction, so that on the one hand sufficient mechanical stability of the welded construction and on the other hand the lowest possible production time by a reduced Number of welded joints is guaranteed.
  • FIGS. 3a and 3b is a wall element 19 in the unbent, ie flat state, shown in FIG FIG. 3b in an upper region of the wall element 19, a head element 22 attached thereto, in particular welded, is.
  • the wall elements 19 originally produced as flat steel sheets are bent in each case by a bending angle along at least one bending line B.
  • a simply angled wall element 19 for example a side wall element 16 shaped as an L profile, a single bending line B is provided which divides the wall element 19 into two regions, one of which is to form an intermediate wall 15 and the other a part of the outer wall 13.
  • through holes 151 are provided here, which are arranged spaced apart in the vertical direction and create passages between the wall chambers 11, in particular to the flow of filled filling material, in particular of liquid concrete, from a wall chamber 11 in the adjacent allow before the filler cured and sidewall 20 stabilized.
  • the passage openings 151 can be produced, for example, by punching or laser cutting, preferably before the assembly of the pit body 10, in the planar wall elements 19 become.
  • a corner wall element 17 a plurality of parallel bending lines B would be provided, which would divide the wall element 19 into several areas, each corresponding to a profile section.
  • a head member 22 has a circular through-opening 221 with an annular inner surface 222 for passage and attachment, in particular welding, a reinforcing rod 30 (see FIG. 5 ) on.
  • the passage opening 221 is provided approximately at the level of the pit opening 21 or the pit edge 24.
  • FIGS. 4a to 4d four different embodiments of a portion of a double-walled side wall 20 are shown.
  • the angled wall elements 19 are preferably made by forming from an originally flat steel sheet, namely preferably by bending along one or more bending lines B.
  • FIG. 4a which in principle of the embodiment according to the FIGS. 1 . 2a and 2b corresponds, forms a steel sheet, the inner wall 12, while firmly connected wall elements 19 with L-shaped cross-section, the outer wall 13 and the wall chambers 11.
  • FIG. 4b forms, inversely as in FIG. 4a , a steel sheet, the outer wall 13, while firmly connected wall elements 19 with L-shaped cross-section, the inner wall 12 and the wall chambers 11 form.
  • each of the inner wall 12 and the outer wall 13 is formed by wall elements 19 with a U-shaped or Z-shaped cross-section.
  • a mounting pit 1 is usually set up in an assembly hall or workshop by first excavating a floor recess 3, casting a horizontal floor panel 4 in the floor recess 3, and then inserting a prefabricated installation pit 1 into the floor recess 3.
  • the assembly group 1 is adjusted or aligned on the bottom plate 4.
  • the remaining part of the bottom recess 3 is filled, for example, with concrete or excavated material, and finally a hall floor 2 is poured, which is flush with the pit opening 21 of the mounting pit 1.
  • the bottom recess 3 is not yet filled, while on the right side an already filled recess area 8 is shown with a part of the hall floor 2 arranged above it.
  • the pit body 10 inserted into the bottom recess 3 on the bottom plate 4 is aligned with a hydraulic lifting device (not shown), which in particular comprises a hydraulic cylinder.
  • a hydraulic lifting device (not shown), which in particular comprises a hydraulic cylinder.
  • on the side wall 20 projecting support elements, such as angle elements, be attached, which engages under the lifting device.
  • the lifting device could also engage directly under the bottom 14 of the pit body 10.
  • support members 5 are welded to the side wall 20 so as to rest on the bottom plate 4 with a lower end.
  • the support elements 5 are here designed as angle elements which are screwed by screws 6 with the bottom plate 4.
  • Supporting elements 5 are arranged at least at the corners of the pit body 10, but preferably at intervals of 1.0 to 1.5 m in the longitudinal direction.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
  • Bridges Or Land Bridges (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP18175698.2A 2017-06-06 2018-06-04 Fosse de montage à double paroi des éléments de paroi Withdrawn EP3412848A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017112379.2A DE102017112379A1 (de) 2017-06-06 2017-06-06 Doppelwandige Montagegrube aus Wandelementen

Publications (2)

Publication Number Publication Date
EP3412848A2 true EP3412848A2 (fr) 2018-12-12
EP3412848A3 EP3412848A3 (fr) 2019-05-29

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EP18175698.2A Withdrawn EP3412848A3 (fr) 2017-06-06 2018-06-04 Fosse de montage à double paroi des éléments de paroi

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EP (1) EP3412848A3 (fr)
DE (1) DE102017112379A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN111576954A (zh) * 2020-04-28 2020-08-25 中铁第四勘察设计院集团有限公司 一种采用后张法施工的预制柱式检查坑

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