CN209277907U - A kind of compatibility of deformation of tunnel expansion joint and discharge structure - Google Patents
A kind of compatibility of deformation of tunnel expansion joint and discharge structure Download PDFInfo
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- CN209277907U CN209277907U CN201822220483.2U CN201822220483U CN209277907U CN 209277907 U CN209277907 U CN 209277907U CN 201822220483 U CN201822220483 U CN 201822220483U CN 209277907 U CN209277907 U CN 209277907U
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- expansion joint
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- expanded rubber
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Abstract
The utility model relates to technical field of tunnel construction, more particularly to a kind of compatibility of deformation of tunnel expansion joint and discharge structure, including tunnel structure bottom plate, concrete pavement layer, supercrust, expanded rubber plate, heat molten type geotextiles, shearing bar, in buried rubber watertight strip, aperture bellows and sealing joint strip；Expansion joint is provided in tunnel structure bottom plate, expanded rubber plate is arranged in tunnel pavement layer and is arranged above expansion joint；Heat molten type geotextiles are laid between expanded rubber plate and pavement structure, and respectively extend 50cm in expanded rubber plate two sides；Shearing bar is provided at expansion joint；Buried rubber watertight strip in having been poured inside concrete structure；In expansion joint upper end and expanded rubber plate two sides of the bottom, sealing joint strip is set；Aperture bellows is arranged in bottom plate groove, and in the sand gravel of aperture bellows surrounding padding and compacting, and the utility model can coordinate the deformation of expansion joint two sides, increases road surface non-deformability and guarded drainage ability at expansion joint.
Description
Technical field
The utility model relates to technical field of tunnel construction more particularly to a kind of compatibility of deformation of tunnel expansion joint and draining knots
Structure.
Background technique
Tunnel is to pour the pipeline for being embedded in underground formed by several times by multistage reinforced concrete structure, inside can be
Pedestrian, vehicle and pipeline provide current and transport space, unavoidably there are structure expansion joint between segment, and Underground Space Environment
Complexity, tunnel run for a long time in can be because the factors such as geological conditions and construction technology lead to the opposite change of structure expansion joint two sides
Shape leads to the diseases such as infiltration in pavement cracking, faulting of slab ends and tunnel, influences tunnel operation security.
At present in constructing tunnel, mainly by the way of cast-in-place concrete and built-in D8 reinforced mesh, disadvantage exists pave-load layer
It is larger in the expansion joint two sides deformation reserved in tunnel, and since built-in D8 reinforced mesh non-deformability is limited, cause
The pave-load layer being arranged in the upper area of expansion joint is easy cracking, can cause cracking, the faulting of slab ends of supercrust, and formed after cracking
Groundwater infiltration channel is not easily repaired.
Therefore, the deformation of expansion joint two sides can be coordinated it is urgent to provide one kind and the road surface resistance at expansion joint can be increased
The tunnel expansion joint compatibility of deformation of shape ability and discharge structure.
Utility model content
(1) technical problems to be solved
In order to solve the above problem of the prior art, the utility model provides a kind of deformation that can coordinate expansion joint two sides
And the compatibility of deformation of tunnel expansion joint and the discharge structure of road surface non-deformability at expansion joint can be increased.
(2) technical solution
In order to achieve the above object, the main technical schemes of the utility model use include:
The utility model provides a kind of compatibility of deformation of tunnel expansion joint and discharge structure, including tunnel structure bottom plate, coagulation
Native pave-load layer, supercrust, expanded rubber plate, heat molten type geotextiles, shearing bar, in buried rubber watertight strip, aperture ripple
Pipe and sealing joint strip, are provided with expansion joint in tunnel structure bottom plate, expanded rubber plate be arranged in concrete pavement layer and
It is arranged above expansion joint；Heat molten type geotextiles are laid in side of the expanded rubber plate towards supercrust, and in expanded rubber plate
Respectively extend 50cm in two sides；Shearing bar is provided at expansion joint；Buried steel side rubber in having been poured inside concrete structure
Waterstop；In expansion joint upper end and expanded rubber plate two sides of the bottom, sealing joint strip is set；Aperture bellows is arranged in bottom plate groove,
And in the sand gravel of the aperture bellows surrounding padding and compacting.
Further, expanded rubber plate is provided with the hole of perforation in tunnel road surface width direction.
Further, the bottom of expanded rubber plate is provided with groove, and the cross-sectional shape of groove is semicircle.
Further, expanded rubber plate with a thickness of 8cm~12cm.
It further, further include foaming PE backing plate, foaming PE backing plate is filled in inside expansion joint.
Further, the material of aperture bellows is HDPE, and sealing strip material is hydro-expansive rubber material.
Further, the material of expanded rubber plate is ethylene propylene diene monomer (EPDM) material.
(3) beneficial effect
The beneficial effects of the utility model are: the tunnel expansion joint compatibility of deformation of the utility model and discharge structure, use
The mode that expanded rubber plate is installed at tunnel structure expansion joint, coordinates the deformation of expansion joint two sides, increases the road at expansion joint
Face non-deformability and guarded drainage ability, increase the safety guarantee in tunnel, reduce the maintenance cost in tunnel.
Detailed description of the invention
Fig. 1 is the hardened structure cross-section diagram of expanded rubber of the compatibility of deformation of tunnel expansion joint and discharge structure of the utility model；
Fig. 2 is the tunnel expansion joint compatibility of deformation of the utility model and the compatibility of deformation structure transverse face figure of discharge structure；
Fig. 3 is the tunnel expansion joint compatibility of deformation of the utility model and the compatibility of deformation structure skiagraph of discharge structure；
Fig. 4 is that bellows and gutter connect at the tunnel expansion joint compatibility of deformation of the utility model and the A of discharge structure
Connect schematic diagram.
[description of symbols]
1: expanded rubber plate；2: heat molten type geotextiles；3: shearing bar；4: in buried rubber watertight strip；5: aperture wave
Line pipe；6: sealing joint strip；7: foaming PE backing plate；8: expansion joint；9: sand gravel；101: tunnel main structure bottom plate；102:D8 type
Steel mesh；103: concrete pavement layer；104: modified emulsifying asphalt viscosity waterproof layer；105: road surface cutting optimal；106: on road surface
Surface layer；107: supercrust；108: gutter；109: hole.
Specific embodiment
It is with reference to the accompanying drawing, right by specific embodiment in order to understand in order to preferably explain the utility model
The utility model is described in detail.
The utility model provides a kind of compatibility of deformation of tunnel expansion joint and discharge structure, including tunnel structure bottom plate 101, mixed
Solidifying soil pave-load layer 103, supercrust 107, expanded rubber plate 1, heat molten type geotextiles 2, shearing bar 3, in buried steel side rubber water-proof
Band 4, aperture bellows 5 and sealing joint strip 6, are provided with expansion joint 8 in tunnel structure bottom plate 101, and expanded rubber plate 1 is arranged
In the concrete pavement layer 103 in tunnel and it is arranged above expansion joint 8, the deformation of 8 two sides of expansion joint can be coordinated, increases
Road surface non-deformability at expansion joint 8, heat molten type geotextiles 2 are laid in expanded rubber plate 1 towards the side of supercrust 107,
And respectively extend 50cm in 1 two sides of expanded rubber plate, the connection relationship between expanded rubber plate 1 and pavement structure can be enhanced, prevented
The only appearance of 107 reflection crack of supercrust is provided with shearing bar 3 at expansion joint 8, and shearing bar 3 is vertically arranged with expansion joint 8,
Shearing bar 3 is that 40 reinforcing bar of φ and steel sleeve form, and has the function of shearing on resistance expansion joint 8, control is shear-deformable, and allows
Deformation of the expansion joint 8 on tunnel axis direction, in the setting of buried rubber watertight strip 4 poured inside concrete structure and
At and be arranged in 8 two sides of expansion joint, preferably waterproof effect can be played to expansion joint 8, in 8 upper end of expansion joint and porous
Sealing joint strip 6 is arranged in 1 two sides of the bottom of rubber slab, can strengthen integrally-built waterproof effect, is arranged in 1 lower part of expanded rubber plate
There is drainage groove, drainage groove is arranged along road surface length direction, and drainage groove is embedded with aperture bellows 5, aperture bellows 5
Grittiness stone is filled and be compacted to surrounding, for collecting and being discharged the underground water of leakage.
Preferably, the hole of perforation is provided with inside expanded rubber plate 1 in tunnel road surface width direction, keeps porous rubber
Self weight is reduced while the intensity of offset plate 1, saves materials, while to leaking the water to get off and porous above expanded rubber plate 1
The underground water leaked out below rubber slab 1 plays the role of collection.
Optionally, the shape of the hole of expanded rubber plate 1 and distribution are different according to road surface loading condition, such as Fig. 1 institute
Show, the cross-sectional shape of hole is preferably arranged to circle, may be alternatively provided as other geometric figures, and the cross section of setting is circular
The size of hole, that is, radius R size, top layer circular hole to 1 upper surface distance H1 of expanded rubber plate, circular hole it
Between vertical range H2 and undermost circular hole can be according to road surface lotus to 1 lower surface distance H3 of expanded rubber plate
Carrier strip part is adjusted.
Further, the bottom of expanded rubber plate 1 is provided with groove, and the cross-sectional shape of groove is semicircle, can be more preferable
The underground water leaked out from expansion joint 8 is collected on ground, reinforces the waterproof effect at expansion joint 8.
Preferably, expanded rubber plate 1 with a thickness of 8cm~12cm, depending on specific thickness is by Pavement Structure Design, and as scheme
Shown in 1, the width B of expanded rubber plate 1 is preferably 1m, and specific width can be adjusted so that reach can on the basis of 1m
Relative efficiency covering 8 top two sides of expansion joint are easy to produce the region of deformation, and the length of expanded rubber plate 1 specifically should basis
Tunnel structure width carries out on-site cutting and splicing.
Optionally, further including foaming PE backing plate 7 can be to expansion joint 8 in 8 the inside filling-foam PE backing plate 7 of expansion joint
Preferable inhibitory effect is played in deformation.
Preferably, 5 material of aperture bellows is HDPE (high density polyethylene (HDPE)), and HDPE has good heat resistance and resists cold
Property, chemical stability is good.
Preferably, sealing joint strip 6 uses hydro-expansive rubber material, can be to expansion joint in the case where underground water leakage
Better inhibiting effect is played in 8 deformation.
Preferably, the material of expanded rubber plate 1 is ethylene propylene diene monomer (EPDM) material, the material waterproofing function admirable.
Preferably, it is additionally provided with modified emulsifying asphalt viscosity waterproof layer above heat molten type geotextiles 2, further increases whole
The waterproof performance of body structure.
Specifically, as shown in Fig. 2, only above the expansion joint 8 in the certain area of two sides setting expanded rubber plate 1 replace it is mixed
Concrete pavement layer 103 is being arranged elsewhere, is being provided with D8 steel bar net in concrete pavement layer 103 for solidifying soil pave-load layer 103
102。
As shown in figure 3, being provided with gutter 108 in tunnel avris, hole 109 is reserved in 108 side of gutter,
Aperture bellows 5 is passed through in gutter 108 by hole 109, the water in aperture bellows 5 is discharged into gutter
Dispatch is concentrated to go out tunnel in 108, and Fig. 4 is the partial enlarged view of Fig. 3.
According to tunnel expansion joint provided by the utility model compatibility of deformation and discharge structure, the construction party of the structure is now provided
Method includes the following steps:
Step S1: to 101 site operation of tunnel main structure bottom plate, it is arranged in tunnel main structure bottom plate 101 flexible
Seam 8, and bar will be sheared when to tunnel main structure 101 casting concrete of bottom plate in the default drainage groove in 8 upper end of expansion joint
3, in the materials embedment such as buried rubber watertight strip 4, foaming PE backing plate 7 expansion joint 8.
Step S2: aperture bellows 5 is put into the preset drainage groove in 8 upper end of expansion joint, in 5 outsourcing of aperture bellows
Permeable nonwoven cloth material, and in 5 surrounding padding and compacting sand gravel 9 of aperture bellows.
Step S3: site operation is carried out to concrete pavement layer 103 and gutter 108, in concrete pavement layer 103
The slot position for installing expanded rubber plate 1 is reserved under the top side location planned in advance, it is reserved in 108 side wall of gutter
Hole 109 out, casting concrete pave-load layer 103 and gutter 108.
Step S4: installation expanded rubber plate 1, expanded rubber plate 1 are provided with one that cross-sectional shape is semicircular groove
It faces to the ground, expanded rubber plate 1 is then placed in the reserved slot position of concrete pavement layer and is close to concrete pavement layer,
The top surface of expanded rubber plate 1 is flushed with the top side location that pave-load layer is planned in advance, and the width of expanded rubber plate 1 is right along expansion joint 8
Claim setting.
Step S5: HDPE aperture bellows 5 is passed through into the hole 109 that 108 side of gutter is reserved, infiltration can be discharged
Underground water.
Step S6: laying heat molten type geotextiles 2 on expanded rubber plate 1 and concrete pavement layer 103, more when laying
Rubber slab 1 two sides in hole respectively extend 50cm.
Step S7: after having laid heat molten type geotextiles 2, supercrust 107 of constructing.
The utility model coordinates expansion joint two sides by the way of installing expanded rubber plate at tunnel structure expansion joint
Deformation increases road surface non-deformability and guarded drainage ability at expansion joint, increases the safety guarantee in tunnel, reduce tunnel
Maintenance cost.
It is to be appreciated that the description to specific embodiment of the utility model progress is simply to illustrate that this is practical above
Novel technology path and feature, its object is to allow those skilled in the art that can understand the content of the utility model simultaneously
Implement accordingly, but the utility model is not limited to above-mentioned particular implementation.All ranges in the utility model claims
The various change or modification inside made should all cover within the protection scope of the present utility model.
Claims (7)
1. a kind of compatibility of deformation of tunnel expansion joint and discharge structure, which is characterized in that
Including tunnel structure bottom plate (101), concrete pavement layer (103), supercrust (107), expanded rubber plate (1), heat molten type
Geotextiles (2), shearing bar (3), in buried rubber watertight strip (4), aperture bellows (5) and sealing joint strip (6), in tunnel
Expansion joint (8) are provided in structure base slab (101)；
Expanded rubber plate (1) setting is in concrete pavement layer (103) and is arranged above the expansion joint (8)；
Heat molten type geotextiles (2) are laid in side of the expanded rubber plate (1) towards supercrust (107), and in expanded rubber plate (1)
Respectively extend 50cm in two sides；
Shearing bar (3) is provided at expansion joint (8)；
Buried rubber watertight strip (4) in having been poured inside concrete structure；
In expansion joint (8) upper end and expanded rubber plate (1) two sides of the bottom setting sealing joint strip (6)；
Aperture bellows (5) is arranged in bottom plate groove, and in the sand gravel (9) of aperture bellows (5) the surrounding padding and compacting.
2. tunnel expansion joint according to claim 1 compatibility of deformation and discharge structure, which is characterized in that
The expanded rubber plate (1) is provided with the hole of perforation in tunnel road surface width direction.
3. tunnel expansion joint according to claim 1 compatibility of deformation and discharge structure, which is characterized in that
The bottom of the expanded rubber plate (1) is provided with groove, and the cross-sectional shape of the groove is semicircle.
4. tunnel expansion joint according to claim 1 compatibility of deformation and discharge structure, which is characterized in that
The expanded rubber plate (1) with a thickness of 8cm~12cm.
5. tunnel expansion joint according to claim 1 compatibility of deformation and discharge structure, which is characterized in that
It further include foaming PE backing plate (7), foaming PE backing plate (7) is filled in inside expansion joint (8).
6. tunnel expansion joint according to claim 1 compatibility of deformation and discharge structure, which is characterized in that
The material of aperture bellows (5) is HDPE；
Sealing joint strip (6) material is hydro-expansive rubber material.
7. tunnel expansion joint according to claim 1 compatibility of deformation and discharge structure, which is characterized in that
The material of the expanded rubber plate (1) is ethylene propylene diene monomer (EPDM) material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822220483.2U CN209277907U (en) | 2018-12-27 | 2018-12-27 | A kind of compatibility of deformation of tunnel expansion joint and discharge structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822220483.2U CN209277907U (en) | 2018-12-27 | 2018-12-27 | A kind of compatibility of deformation of tunnel expansion joint and discharge structure |
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| CN209277907U true CN209277907U (en) | 2019-08-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469496A (en) * | 2018-12-27 | 2019-03-15 | 苏交科集团股份有限公司 | A kind of compatibility of deformation of tunnel expansion joint and discharge structure and construction method |
| CN112901222A (en) * | 2021-02-23 | 2021-06-04 | 中铁五局集团有限公司 | Treatment process for concrete water seepage cracks of inverted arch of tunnel |
| CN114592887A (en) * | 2022-03-14 | 2022-06-07 | 中国水利水电科学研究院 | Water delivery tunnel lining expansion joint process design method |
-
2018
- 2018-12-27 CN CN201822220483.2U patent/CN209277907U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469496A (en) * | 2018-12-27 | 2019-03-15 | 苏交科集团股份有限公司 | A kind of compatibility of deformation of tunnel expansion joint and discharge structure and construction method |
| CN109469496B (en) * | 2018-12-27 | 2024-01-12 | 苏交科集团股份有限公司 | Tunnel expansion joint deformation coordination and drainage structure and construction method |
| CN112901222A (en) * | 2021-02-23 | 2021-06-04 | 中铁五局集团有限公司 | Treatment process for concrete water seepage cracks of inverted arch of tunnel |
| CN114592887A (en) * | 2022-03-14 | 2022-06-07 | 中国水利水电科学研究院 | Water delivery tunnel lining expansion joint process design method |
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