EP2325399A1 - Schachtanordnung - Google Patents

Schachtanordnung Download PDF

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Publication number
EP2325399A1
EP2325399A1 EP09176791A EP09176791A EP2325399A1 EP 2325399 A1 EP2325399 A1 EP 2325399A1 EP 09176791 A EP09176791 A EP 09176791A EP 09176791 A EP09176791 A EP 09176791A EP 2325399 A1 EP2325399 A1 EP 2325399A1
Authority
EP
European Patent Office
Prior art keywords
skirt
gasket
frame
pipe
riser pipe
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.)
Granted
Application number
EP09176791A
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English (en)
French (fr)
Other versions
EP2325399B1 (de
Inventor
Johan Gudbrand Refsahl
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.)
Furnes-Hamjern SCC AS
Original Assignee
Furnes-Hamjern SCC AS
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 Furnes-Hamjern SCC AS filed Critical Furnes-Hamjern SCC AS
Priority to AT09176791T priority Critical patent/ATE554236T1/de
Priority to DK09176791.3T priority patent/DK2325399T3/da
Priority to EP09176791A priority patent/EP2325399B1/de
Publication of EP2325399A1 publication Critical patent/EP2325399A1/de
Application granted granted Critical
Publication of EP2325399B1 publication Critical patent/EP2325399B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination

Definitions

  • Underground installations are important prerequisites for urban areas. These structures include sewers, water pipes, gas pipes, electric and fiber optic cables etc, and their placement underground conveniently allows the ground surface to be used for buildings, streets and recreational areas,
  • the manhole which comprises a vertical access shaft or riser pipe extending between for example a read surface and an underground sewer pipe, a frame for mounting to the end of the riser pipe opposite the sewer pipe, the frame being placed in the road surface, and a cover for installation within the frame.
  • the cover closes the manhole and provides a surface on which road traffic may drive.
  • Constructions of underground installations are costly endeavors, not only in material terms but also in time as sections of an urban area may need to be closed down during the construction works. Time is also consumed when underground installations need to be modified or moved to adjust to a new buildings on the ground or the resurfacing of a street or road.
  • resurfacing where typically the level of the resurfaced road is higher than the level of the road prior to resurfacing, due to the thickness of the layer of new road surface material, has as a consequence that the frames of any manholes in the road will have to be lifted up to the new level of the road if they are to remain accessible and provide a smooth road surface.
  • spacers or extension ring may be placed between the end of the riser pipe and the frame. Such techniques are described in amongst others US4188151 , US6196760 and EP0529178 .
  • Some limited movement of a manhole may also be possible according to the technique, for distributing forces on manholes to the surrounding ground, described in EP0900885 .
  • An object of the present invention is to simplify adjusting the height of a frame of a manhole structure to accommodate a resurfaced road, thus making it less time consuming
  • a further object of the present invention is to reduce the risk of surrounding earth or debris entering the manhole during the adjustment
  • a still further object of the present invention is to provide a manhole structure, able to be adjusted, comprising few parts,
  • another object of the present invention is to prevent damage to, or breakage of, the riser pipe.
  • a further object of the present invention is to simplify the mounting of a manhole frame to a riser pipe.
  • the manhole structure may be place at ground level or may itself be submerged in a trench or hole or the like.
  • the manhole structure may be placed in earth, gravel, soil, sand, concrete etc and may further be placed in a street, on a road, on the sidewalk in a park, in a building, in a cellar etc.
  • the manhole structure may, due to its contruction, which will be further described below, be advantageously employed in situations where high loads are applied to the manhole structure, for example in streets or roads having intense traffic.
  • the frame is preferably a floating manhole frame,i.e. the frame is typically supported by an annular lip or flange which may rest on a fill, a ballast, or a road surface - material such as gravel, stone, asphalt or concrete.
  • the frame may have a circular, an elliptic, a square, a rectangular or a polygonal aperture, the aperture having an inside diameter in the range of 50 -1500 mm.
  • the frame may be manufactured from cast steel, galvanized steel, fiber reinforced plastics or other materials, but cast iron is preferred.
  • the frame may receive a cover separate from the frame, or alternatively may comprise a cover pivotally or hingedly mounted to the frame.
  • the cover may be manufactured from the same materials as the frame, or the frame and cover may be manufactured from different material, the cover should conform to the dimensions of the aperture to cover the aperture and thereby prevent individuals or vehicles from unintentionally entering the manhole structure.
  • the aperture in the skirt is preferably circular, but it may also be elliptic, square, rectangular or polygonal, however a skirt having the same aperture as the frame is preferred.
  • skirt may be formed separate from the frame whereby it may be attached to the frame by mechanical connections such as screws, ruts and bolts etc.
  • the riser pipe is longitudinally extendable.
  • the riser pipe may also be longitudinally retractable i,e, having the having the ability to become shorter. It is preferred that the riser pipe is both longitudinally extendable and longitudinally retractable. Within the content of the present invention the term extendable should also comprise retractable
  • the riser pipe may be manufactured from plastic, fibre reinforced plastic concrete, or iron etc, but plastic is preferred.
  • gasket is to be understood to comprise a material or a part used to make a joint fluid-tight.
  • gaskets include performed molded gaskets which may be manufactured separate from the skirt and the riser pipe and subsequently being mounted in the skirt or onto the riser pipe. Gaskets may also be understood as in situ molded gaskets which are molded in contact with the skirt or the riser pipe. Gaskets may be adhesives for sealing smaller distances between the skirt and the riser pipe. Finally gaskets may be a filler material disposed between the skirt and the riser pipe, typically for larger distances between the skirt and the riser pipe
  • the gasket comprises an adhesive.
  • the adhesive may be applied along a portion of the length of the skirt, but may also be provided along the full overlapping ,length of the skirt and the riser pipe.
  • the adhesive used may have a higher viscosity for wider distance between the skirt and the riser pipe, although adhesives are preferably used for small distances between the skirt and the riser pipe.
  • the adhesive may be a thermosetting adhesive such as an epoxy adhesive which may be cured by heat or exposure to ultraviolet light (UV), a polyurethane adhesive, a cyanoacrylate adhesive, a non-vulcanized natural or synthetic rubber which may be vulcanized, i.e. cured, by heat and pressure, peroxides, or sulfur (for natural rubber), a hot melt adhesive such as ethylene-vinyl acetate copolymer, polyethylene, polypropylene, polyamide, polyester or other plastics, or an acrylic adhesive.
  • the above mentioned adhesives may optionally be reinforced by glass fibres, Kevlar fibres etc.
  • the adhesive may be coated onto the skirt of the frame prior to the insertion of the riser pipe into the skirt or vice versa.
  • the adhesive may also be injected into the space between the riser pipe and the skirt after the riser pipe has been inserted into the skirt.
  • Curing: of the adhesive may be achieved in room temperature or below room temperature, for thermo seeing adhesives heat may be applied to the adhesive or alternatively to the whole or parts of the manhole structure. Curing by ultraviolet radiation (UV) may be achieved by irradiating the adhesive with ultraviolet radiation.
  • UV ultraviolet radiation
  • an adhesive may have a lubricating effect during the insertion of the riser pipe into the skirt, thereby rendering the insertion of the user pipe into the skirt less strenuous, whereas the cured adhesive retains the riser pipe in the skirt.
  • Adhesives may be used where the distance between the skirt is too small to use a gasket. Further, adhesives may retain the riser pipe in the skirt stronger than a gasket. Preferably the cured adhesive is somewhat flexible to allow some flexibility in the connection between the skirt and the riser pipe, but an non-flexible adhesive may also be used.
  • the riser pipe comprises a first pipe mounted to the frame, and a second pipe, the first pipe being connected to, and telescopically adjustable in relation to, the second pipe.
  • the first pipe may be held within the second pipe or vice versa in a telescopic arrangement.
  • the force needed to adjust the first pipe in rotation to the second pipe is lower than the force by which the first pipe is retained to the frame by the gasket. This allows the height of the frame to be adjusted as will be described in more detail below as any adjustment of the height of the frame results in an adjustment of the first pipe in relation to the second pipe.
  • the first pipe of the riser pipe may have an annular groove on its outer surface adjacent the end of the first pipe mounted to the frame, the groove being engageable by the gasket which is described in more detail below, to increase the strength with which the gasket retains the first pipe in the frame.
  • the first pipe may alternatively be surface treated to increase the friction between the first pipe and the gasket, for example by roughening the surface, or by coating the surface with high friction material such as for example rubber or sand.
  • a bellow-like structure is inserted in the riser pipe.
  • the riser pipe may comprise a first pipe mounted to the frame, a second pipe and a bellow-like structure connecting the first and second pipe.
  • the bellow-like structure may be extendable longitudinally, but may also be flexible allowing the riser pipe to bend.
  • the bellow like structure typically comprises a length of flexible and/or elastic tubing, optionally reinforced by a spiral wound metallic wire provided in the wall of the length of tubing for example by molding.
  • the bellow-like structure may be advantageous as it connects the first and the second pipes without any moving joint where high ground water pressures water could force water into the riser pipe.
  • the manhole structure further comprises an underground installation mounted to one end of the riser pipe, the other end of the riser pipe being mounted to the frame.
  • the manhole structure may be used to access an underground installation, such as a sewer, a water pipe, a gas pipe, or a pipe containing electric and/or fiber optic cables or the like.
  • an underground installation such as a sewer, a water pipe, a gas pipe, or a pipe containing electric and/or fiber optic cables or the like.
  • the skirt comprises a groove or alternatively a recess, formed within its inner Wall.
  • the groove preferably extends all around the circumference of the skirt, but may also be provided in discrete segments. The groove may serve to receive a part of the gasket thus retaining the gasket more securely.
  • the gasket has a first side oriented towards the inner wall of the skirt and a second side oriented towards the center of the skirt, the second side having a rib adapted to retain the riser pipe.
  • a plurality of ribs may be provided to further increase the riser pipe retaining properties of the gasket, further the material used in the gasket may be varied to increase or decrease the retaining propertied.
  • the gasket is typically made of a resilient material such as rubber, plastic, polymeric material or the like.
  • the length of the rib or ribs may be adapted to retain pipes having a range of diameters, so that one gasket may be used to retain riser pipes of varying diameters.
  • the rib or ribs are deformed by the pipe end as the riser pipe is inserted into the gasket. After insertion, the force exerted by the nb striving to regain its non-deformed state surely retains the riser pipe in the manhole structure.
  • the first side of the gasket is receivable within the groove of the skirt.
  • the gasket may be mounted firmly to the skirt, further, any risk of dislodging the gasket when inserting the riser pipe in the frame is removed as the bulk of the gasket is received within the groove.
  • the gasket may further be retained within the groove by providing an adhesive on the first side of the gasket thus anchoring the gasket to the skirt. Further, an adhesive may be provided also on the second side of the gasket.
  • the gasket may be attached to the skirt through molding in situ.
  • the gasket may for example be molded to the skirt by placing a mold corresponding to the second side of the gasket within the manhole frame, injecting a curable or settable liquid or melted gasket material into the space between the frame and the mold, thy space corresponding to the desired shape of the gasket, and curing or allowing to set the curable or settable liquid or melted gasket material to form the gasket molded to the frame.
  • the gasket may be molded as described to a skirt separate from the frame, the skirt subsequently being attached to the frame as described previously.
  • the gasket may be molded to the riser pipe.
  • gasket may be attached to the skirt of the frame using bolts, screws etc.
  • the free side of the gasket i.e. the side facing the riser pipe when the gasket is molded to the skirt, or the side facing the skirt when the gasket is molded to the riser pipe, may be provided with an adhesive which may have a lubricating effect when uncured to facilitate the insertion of the riser pipe in the skirt.
  • a less flexible rib such as a rib comprising a metal tip to further grip the riser pipe.
  • a skirt having a groove of semi-circular cross section and a gasket having a semi-circular part receivable within the groove.
  • the manhole structure according to the present invention may also be used with a per se known gasket, such as the gasket disclosed in EP1792110 .
  • the second side of the gasket has a groove for receiving a retaining ring.
  • the gasket preferably has a retaining ring, either provided within a groove on the second side of the gasket, or alternatively provided as an in-molded ring or as a ring shaped reinforcement, such as glass or carbon fibers, provided within the gasket material.
  • a further possibility of achieving a retaining ring effect is by a circumferential air compartment provided within the gasket, the air compartment being expandable by pressurization.
  • the retaining ring is preferably expandable.
  • the retaining ring may be constructed from metal or a polymeric material such as polypropylene or similar.
  • the retaining ring is advantageous in that it prevents the gasket from becoming dislodged from its position within the skirt, however, the retaining ring may be omitted when the risk of dislodging the gasket during insertion of the riser pipe in the skirt is small, such as when the gasket is molded to the skirt, the gasket is of a less flexible material, or when the gasket, and correspondingly the skirt and riser pipe, are of smaller dimensions.
  • the manhole structure according to the first aspect of the present invention has the advantage that it comprises few parts, thus rendering both fabrication and installation less complex, While still achieving the desired function of allowing the height of the frame to be adjusted, Furthermore, the manhole structure may accammodate small movements between the frame and the riser pipe, the movements being accommodated by the gasket, due to elasticity or by the riser pipe which is longitudinally extendable. This prevents damage to, or breakage of, the riser pipe.
  • the small movements mentioned above may be from natural movements in the ground, or from loads applied to the cover or frame, for example from vehicles driving on the cover or frame,
  • a further advantage of the manhole structure according to the first aspect of the present invention is that the need for providing a plurality of gaskets is lessened as each gasket may retain riser pipes of a range of diameters, thus decreasing the number of different geskets needed, thereby saving costs in the manufacturing of the gaskets and further reducing the complexity of handling the manhole structure.
  • a Subsequent advantage is that the exact dimensions of the riser pipe become less critical as the gasket compensates for any deviation, dependent on the shape and material of the gasket, from the riser pipe specifications,
  • a yet further advantage of the manhole structure according to the first aspect of the present invention is tha the manhole structure is still usable when the riser pipe is not inserted straight into the skirt of the frame, but instead is angled. This is for example useful when the road surface in which the frame is placed is not orthogonal to the riser pipe. Depending on the diameter of the riser pipe in relation to the diameter of the skirt and the gasket, a larger or smaller tolerance may be achieved.
  • the adhesive is applied to the space between the skirt and the riser pipe after the riser pipe has been inserted into the skirt.
  • the method according to the second aspect of the present invention may additionally comprise the step of curing, or allowing to cure, the caulk,
  • the caulk is applied to the space between the skirt and the riser pipe after the riser pipe has been inserted into the skirt.
  • the method according to the second aspect of the present invention has the advantage that the connection of frame to riser pipe is simple to perform and does not require any specific tools or materials, No concrete or other sealing material is needed to achieve a sealed connection between the frame and the riser pipe.
  • a third aspect of the present invention a method of adjusting the height of a frame in a manhole structure according to the first aspect of the present invention, from a first level to a second level, is provided, comprising the steps of
  • the frame lifted whereby, for example when the riser pipe is telescopic riser pipe, the first pipe is extended out of the second pipe to follow the movement of the frame.
  • the new road surface material is placed under the lip or flange of the frame and around the skirt and any part of the telescopic riser pipe that has become unearthed during the repositioning of the manhole frame, thus the frame is repositioned to accommodate the new road surface without the need for disassembly of manhole frame from the telescopic riser pipe or the need for mounting a spacer to the riser pipe.
  • a limited excavation around the frame may be needed when the frame is lifted with manual means such as a spud bar, a crowbar, a shovel etc, but it is contemplated within the context of the present invention to simply lift the frame using a enough force, from a crane, an excavator or the like, out of the road surface to the height of the new road surface.
  • the new road surface material may be applied to the road prior to lifting of the frame, whereby the new road surface material is removed from the frame and the frame is subsequently lifted
  • the method according to the third aspect of the present invention has the advantage that the height of the manhole frame is simply and quickly adjusted, without any risk of surrounding earth, debris or water entering the manhole structure. Further there is no need of disassembly of the manhole structure during adjusting.
  • the height of the frame may be adjusted by lifting, but the frame may also be lowered,
  • the first level comprises the level of a road surface before resurfacing
  • said second leve comprises the level of said road after resurfacing.
  • the road may be resurfaced by laying a new layer of asphalt or other paving or read surface material. The level of the road is then increased due to the thickness of the new material deposited on the road,
  • the road surface material 30 is typicaly asphalt, concrete, or gravel and has a road surface designated the reference numeral 40 flush with the manhole structure.
  • the base layer 32 typically consists of grave, concrete, sand or crushed rock etc.
  • the frame 12 further comprises a receiving aperture in its whole designated the reference numeral 18 positioned on a first side of the manhole structure.
  • the receiving aperture 18 comprises a Wall 20 and a shoulder 22 which supports a cover (not shown),
  • the skirt 16 as shown in fig. 1a is integrally formed with the frame 12, and extends from a second side of the frame 12.
  • the skirt comprises a receiver, in its whole designated the reference numeral 24 for receiving a riser pipe, in its whole designated the reference numeral 100.
  • the skirt further comprises a groove designated the reference numeral 26 for receiving the gasket 50.
  • the gasket comprises a first side, designated the reference numeral 52, which is oriented towards the groove 26 and receivable within the groove 26 by virtue of the complimentary shape of the first side 52.
  • each rib 56 and 58 creating a resilient restriction of lesser diameter than the diameter of the receiver 24.
  • the ribs 56 and 58 are angled in the insertion direction of the riser pipe 100, thereby allowing an effortless installation of the manhole structure 10 on the riser pipe 100 while providing a high friction counter force to any movement in the direction of extraction of the riser pipe 100 from skirt 16.
  • a retaining ring designated the reference numeral 60 is shown positioned within a groove designated the reference numeral 62. formed on the second side af the gasket. 50.
  • the retaining ring 60 ensures that gasket 50 does not become dislodged from the groove 26 in the skirt 12.
  • the retaining ring 60 may alternatively be in-molded into the gasket 50 in which case the groove 62 may be omitted.
  • the riser pipe 100 comprises a first pipe, designated the reference numeral 102, which is held within a second pipe, designated the reference numeral 106.
  • the first and second pipe 102 and 106 are telescopically adjustable and longitudinally extendable in relation to each other.
  • the first pipe 102 and its end, designated the reference numeral 104, is retained in frame 16 by the gasket 50, the second pipe 106 is connected to an underground installation (not shown).
  • a fluid or collar may be provided between the first pipe 102 and the second pipe 106 to lubricate and seal the joint between the pipes 102 and 106.
  • a blow up of the connection between the gasket 50 and the riser pipe 100 is shown in the lower part of fig. 1a and shows a light fit.
  • the connection waterproof and further prevents any loose material from the base layer 32 being carried by water into the riser pipe 100, thus preventing damage to the underground installation (not shown) accessed through the manhole structure 10, and further preventing undermining of the base layer 32 which supports the layer of road surface material 30 supporting the frame 12.
  • the first pipe 102 is retained in the skirt 16 by a cured adhesive, designated the reference numeral 50', provided between the skirt 16 and the first pipe 102.
  • the adhesive 50' may be provided along a portion of the length of the skirt 16 as shown in fig. 1b but may also be provided along the full overlapping length of the skirt 16 and the first pipe 102.
  • Uncured adhesive 50' may be coated onto the skirt 16 of the frame 12 prior to the insertion of first pipe 102 into the skirt 16 or vice versa.
  • the adhesive 50' may also be injected into the space between the first pipe 102 and the skirt 16 after the first pipe 102 has been inserted into the skirt 16, When the first pipe 102 is properly positioned in the skirt 16 the adhesive 50' may be cured.
  • a further alternative embodiment of the manhole structure 10 is shown in fig. 1c where first pipe is retained in the skirt 16 by cured caulk, designated the reference number 50", provided between the skirt 16 and the first pipe 102, in particular the caulk 50" is provided in the groove 50" in the skirt 16.
  • the grove 26 ensures that the caulk. 50" is securely retained within the skirt 16 so that it may surely retain the first pipe 102 in the skirt 16.
  • the added volume of caulk 50" may, when the caulk is elastic or flexible, increase the flexibility of the connection between the riser pipe 100 and the skirt 16 of the frame 12.
  • Uncured caulk 50" may be applied to the skirt 16 prior to insertion of the first pip 102 into the skirt 16, or preferably injected into the space between the first pipe 102 and the skirt 16 after the first pipe 102 has been inserted into the skirt 16.
  • the caulk 50" may be cured.
  • Fig. 2 shows in cross section a second embodiment, designated the reference numeral 10', of the manhole structure 10 shown in fig. 1 , the difference being an alternative riser pipe, in its whole designated the reference numeral 100'.
  • Riser pipe 100' comprises a first pipe, designated the reference numeral 102' connected to a second pipe, designated the reference numeral 106', through a bellow-like structure, designated the reference numeral 108', which is flexible and extendable and thereby accommodates movements between the first pipe 102' and the second pipe 106', thus allowing longitudinal extension of the riser pipe 100'.
  • the riser pipe 100' may be advantageous where the pressure of ground water is high as it may achieve a stronger seal between the first and second pipes 102' and 106' than the first and second pipes 102 and 106 of the riser pipe 100 shown in fig. 1 .
  • Fig. 3a shows the manhole structure 10 where the first pipe 102 has not been fully inserted into the skirt 16. However, as can be seen, an equally successful connection between frame 16 and the first pipe 102 is achieved.
  • Fig. 3b shows a further embodiment, designated the reference numeral 10", of the manhole structure according to the present invention wherein a narrower riser pipe designated the reference numeral 100" is shown.
  • the first pipe 102" of the riser pipe 100" is however still surely retained by the gasket 50 due to the ribs 56 and 58 which grip and retain the first pipe 102".
  • a blowup of the between the gasket 50 and the first pipe 102" is shown in the lower part of fig. 3b .
  • the space, designated the reference numeral 64, between the inner wall of the skirt 16 and the pipe end 104" may be filled with a curable compound if desired to further anchor the end 104" to the frame 16.
  • Fig. 3e shows the manhole structure 10'" where the first pipe 102" has not been fully inserted into the skirt 16. However, as can be seen, an equally successful connection between frame 16 and the first pipe 102" is achieved.
  • the space 64 may be filled with a curable compound if desired to further anchor the end 104" to the frame 16.
  • Fig. 4 shows in cross section a method of mounting the manhole structure according to an embodiment of the present invention.
  • the first pipe 102 of the riser pipe 100 (not shown in fig. 4 ) is inserted the skirt 16 through the gasket 50.
  • the ribs 56 and 58 are deformed, bent, compressed and/or stretched, thus forming a resilient seal between the frame 12 and the first pipe 102.
  • the end 104 of the first pipe 102 may be chamfered as shown in fig 4 to facilitate the insertion through gasket 50 and into the skirt 16 of the frame 12
  • the frame 13 with the first pipe 103 mounted in the skirt 16 may then be positioned so that the first pipe 102 is inserted in the second pipe 106 (hot shown in fig. 4 ) and the frame 12 is supported by the road surface 30 (not shown in fig. 4 ) to create an access way from the road surface 30 to an underground installation (not shown) through the first pipe 102 and the second pipe 106.
  • Figs. 5a 5c show in cross section a method of adjusting the height of the frame in a manhole structure according to a first embodiment of the present invent.
  • Fig. 5a shows the manhole structure 10 prior to the adjustment of the height of the frame 12.
  • the second pipe 106 of the riser pipe 100 is connected to an underground installation (not shown).
  • the first pipe 102 of the riser pipe 100 is inserted in the skirt 16 and surely retained by the gasket 50.
  • the frame 12 is supported by the road surface material 30 which is further supported by the base layer 32.
  • the road surface 40 is flush with the frame 12.
  • the frame 12 has been lifted up out of the layer road surface material 30 to a position above the road surface 40.
  • the frame 12 may be lifted using a shovel, spud bar or the like, but may also be lifted using a crane, an excavator or a tractor such as a backhoe loader (not shown).
  • the riser pipe 100 is telescopically extended as the frame 12 is lifted in that the first pipe 102 of the riser pipe 100 slides out of the second pipe 106.
  • the riser pipe 100' is extended by the extension of the bellow-like structure 108' inserted between the first and the second pipe 102' and 106'.
  • the gasket 50 retains the first pipe 102 surely so that the first pipe 102 does not slip out of the gasket 50 during the lifting of the trance 12 due to the friction force between the first pipe 102. and the second pipe 106, the friction force between the first pipe 102 and the surrounding Soil 34, and the weight of the first pipe 102.
  • the new road surface material 36 is applied to the road in which the manhole structure 10 is placed, and further applied around the frame 12 and under the lip 14 to support the frame 12 as shown in fig. 5c .
  • the new road surface material 36 may be applied to the road and the manhole structure prior to the lifting of the frame 12.
  • the frame 12 with a coyer (not shown) received in the received in the receiving aperture 18 may be covered with a thin layer of sand or other loose material to prevent adhesion of the new road surface material 36 to the frame 12 or its cover (not shown) as the new road surface material 36 is applied to the road to resurface the road the which the manhole structure 10 is placed.
  • the frame After removal of the new road surface material 30 from the frame 12 and its cover (not shown), the frame may be lifted as described above in rotation to fig.
  • Manhole structure 10 Manhole structure (second embodiment) 10".
  • Space 100 riser pipe 100'.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Sewage (AREA)
EP09176791A 2009-11-23 2009-11-23 Schachtanordnung Active EP2325399B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT09176791T ATE554236T1 (de) 2009-11-23 2009-11-23 Schachtanordnung
DK09176791.3T DK2325399T3 (da) 2009-11-23 2009-11-23 Mandehulsstruktur
EP09176791A EP2325399B1 (de) 2009-11-23 2009-11-23 Schachtanordnung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09176791A EP2325399B1 (de) 2009-11-23 2009-11-23 Schachtanordnung

Publications (2)

Publication Number Publication Date
EP2325399A1 true EP2325399A1 (de) 2011-05-25
EP2325399B1 EP2325399B1 (de) 2012-04-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09176791A Active EP2325399B1 (de) 2009-11-23 2009-11-23 Schachtanordnung

Country Status (3)

Country Link
EP (1) EP2325399B1 (de)
AT (1) ATE554236T1 (de)
DK (1) DK2325399T3 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2712825A1 (de) * 2012-09-28 2014-04-02 TECE GmbH Teleskopaufsatz für einen Abscheidebehälter und Abscheidebehälter damit
CN112601862A (zh) * 2018-08-23 2021-04-02 亚科赛福林阿尔曼有限公司 框架系统和井盖装置
CN113982004A (zh) * 2021-12-24 2022-01-28 太原理工大学 一种锚索-加筋土组合挡土构件及其施工方法
DE102014118831B4 (de) 2014-01-09 2024-06-13 Wolfgang Hofmann Höhenverstellbare Straßenkappe
JP2024171440A (ja) * 2023-05-30 2024-12-12 株式会社クボタケミックス 桝蓋

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RU2504619C1 (ru) * 2012-07-17 2014-01-20 Александр Васильевич Махалов Люк колодца, регулируемый в процессе эксплуатации по высоте и наклону

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EP0529178A1 (de) 1991-08-29 1993-03-03 SKÖNVALL, Tage Zwischenring für Schachtabdeckung
DE19505130A1 (de) 1995-02-16 1996-08-29 Rexroth Mannesmann Gmbh Unterirdischer Lagerraum
EP0826834A2 (de) 1996-08-30 1998-03-04 Alois Pichler Schachtabschluss
EP0900885A1 (de) 1997-09-02 1999-03-10 Uponor Anger GmbH Tragrahmen für Kanalabdeckungen, Steigleitungsanordnung und Verfahren zur Herstellung
DE29907296U1 (de) 1999-04-24 1999-07-29 Buderus Guss Gmbh, 35576 Wetzlar Vorrichtung zum Befestigen einer Einstieghilfe
US6196760B1 (en) 1999-06-24 2001-03-06 David Brent Sinclair Adjustment riser
CA2425459A1 (fr) 2003-04-07 2003-08-09 Guy Boudreau Systeme auto-nivelant
EP1792110A1 (de) 2004-09-24 2007-06-06 Saint-Gobain Pam Stopfbuchsendichtung und entsprechende anordnung

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US4188151A (en) 1977-10-25 1980-02-12 Margaret T. Hall Manhole extension assembly
EP0529178A1 (de) 1991-08-29 1993-03-03 SKÖNVALL, Tage Zwischenring für Schachtabdeckung
DE19505130A1 (de) 1995-02-16 1996-08-29 Rexroth Mannesmann Gmbh Unterirdischer Lagerraum
EP0826834A2 (de) 1996-08-30 1998-03-04 Alois Pichler Schachtabschluss
EP0900885A1 (de) 1997-09-02 1999-03-10 Uponor Anger GmbH Tragrahmen für Kanalabdeckungen, Steigleitungsanordnung und Verfahren zur Herstellung
DE29907296U1 (de) 1999-04-24 1999-07-29 Buderus Guss Gmbh, 35576 Wetzlar Vorrichtung zum Befestigen einer Einstieghilfe
US6196760B1 (en) 1999-06-24 2001-03-06 David Brent Sinclair Adjustment riser
CA2425459A1 (fr) 2003-04-07 2003-08-09 Guy Boudreau Systeme auto-nivelant
EP1792110A1 (de) 2004-09-24 2007-06-06 Saint-Gobain Pam Stopfbuchsendichtung und entsprechende anordnung

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2712825A1 (de) * 2012-09-28 2014-04-02 TECE GmbH Teleskopaufsatz für einen Abscheidebehälter und Abscheidebehälter damit
DE102014118831B4 (de) 2014-01-09 2024-06-13 Wolfgang Hofmann Höhenverstellbare Straßenkappe
CN112601862A (zh) * 2018-08-23 2021-04-02 亚科赛福林阿尔曼有限公司 框架系统和井盖装置
US11873614B2 (en) 2018-08-23 2024-01-16 Aco Ahlmann Se & Co. Kg Frame system and manhole covering
CN113982004A (zh) * 2021-12-24 2022-01-28 太原理工大学 一种锚索-加筋土组合挡土构件及其施工方法
JP2024171440A (ja) * 2023-05-30 2024-12-12 株式会社クボタケミックス 桝蓋

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DK2325399T3 (da) 2012-07-16
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