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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- 239000004567 concrete Substances 0.000 claims abstract description 23
- 239000004746 geotextile Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000004576 sand Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 16
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 238000005187 foaming Methods 0.000 claims 2
- 238000010008 shearing Methods 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 13
- 239000010959 steel Substances 0.000 abstract description 13
- 239000012943 hotmelt Substances 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 7
- 239000003673 groundwater Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
本实用新型涉及隧道施工技术领域,尤其涉及一种隧道伸缩缝变形协调及排水结构,包括隧道结构底板、混凝土铺装层、路面层、多孔橡胶板、热熔型土工布、剪力杆、中埋式钢边橡胶止水带、开孔波纹管和密封胶条;在隧道结构底板中设置有伸缩缝,多孔橡胶板设置在隧道铺装层内并且设置在伸缩缝上方;热熔型土工布敷设在多孔橡胶板和路面结构之间,并在多孔橡胶板两侧各延伸出50cm;在伸缩缝处设置有剪力杆;在混凝土结构内部浇筑有中埋式钢边橡胶止水带;在伸缩缝上端和多孔橡胶板底部两侧设置密封胶条;开孔波纹管设置底板凹槽内,且在开孔波纹管四周填充压实的砂砾石,本实用新型能够协调伸缩缝两侧的变形,增加伸缩缝处的路面抗变形能力和防排水能力。
The utility model relates to the technical field of tunnel construction, in particular to a tunnel expansion joint deformation coordination and drainage structure, including a tunnel structure bottom plate, a concrete pavement layer, a pavement layer, a porous rubber plate, a hot-melt geotextile, a shear bar, a middle Buried steel edge rubber waterstop, perforated corrugated pipe and sealing rubber strip; expansion joints are set in the tunnel structure floor, and porous rubber plates are set in the tunnel pavement and above the expansion joints; hot-melt geotextiles It is laid between the porous rubber plate and the pavement structure, and extends 50cm on both sides of the porous rubber plate; a shear bar is set at the expansion joint; a mid-buried steel edge rubber waterstop is poured inside the concrete structure; The upper end of the expansion joint and the two sides of the bottom of the porous rubber plate are provided with sealing strips; the perforated corrugated pipe is arranged in the groove of the bottom plate, and compacted sand and gravel are filled around the perforated corrugated pipe. The utility model can coordinate the deformation of both sides of the expansion joint , Increase the anti-deformation ability and waterproof and drainage ability of the pavement at the expansion joint.
Description
技术领域technical field
本实用新型涉及隧道施工技术领域,尤其涉及一种隧道伸缩缝变形协调及排水结构。The utility model relates to the technical field of tunnel construction, in particular to a tunnel expansion joint deformation coordination and drainage structure.
背景技术Background technique
隧道是由多段钢筋混凝土结构分次浇筑形成的埋设于地下的管道,其内部可以为行人、车辆和管线提供通行和运输空间,节段间不可避免留有结构伸缩缝,而地下空间环境复杂,隧道长期运营中会因为地质条件和施工工艺等因素导致结构伸缩缝两侧的相对变形,导致路面开裂、错台和隧道内渗水等病害,影响隧道运营安全。The tunnel is a buried underground pipeline formed by multi-section reinforced concrete structure pouring in stages. Its interior can provide passage and transportation space for pedestrians, vehicles and pipelines. Structural expansion joints are inevitably left between sections, and the underground space environment is complex. During the long-term operation of the tunnel, due to factors such as geological conditions and construction technology, the relative deformation on both sides of the structural expansion joints will lead to road surface cracks, misalignment, and water seepage in the tunnel, which will affect the safety of tunnel operation.
目前隧道施工中,铺装层主要采用现浇混凝土并内置D8钢筋网片的方式,缺点在于隧道内预留的伸缩缝两侧变形较大,并且由于内置的D8 钢筋网片抗变形能力有限,导致设置在伸缩缝上方区域内的铺装层容易开裂,会引起路面层的开裂、错台,且开裂后形成的地下水渗入通道不易修复。At present, in tunnel construction, the pavement layer mainly adopts cast-in-place concrete and built-in D8 steel mesh. The disadvantage is that the deformation on both sides of the reserved expansion joints in the tunnel is relatively large, and because the built-in D8 steel mesh has limited deformation resistance, As a result, the pavement layer arranged in the area above the expansion joint is prone to cracking, which will cause cracking and dislocation of the pavement layer, and the groundwater infiltration channel formed after the cracking is not easy to repair.
因此,亟需提供一种能够协调伸缩缝两侧的变形并能够增加伸缩缝处的路面抗变形能力的隧道伸缩缝变形协调及排水结构。Therefore, there is an urgent need to provide a tunnel expansion joint deformation coordination and drainage structure that can coordinate the deformation on both sides of the expansion joint and increase the anti-deformation ability of the road surface at the expansion joint.
实用新型内容Utility model content
(一)要解决的技术问题(1) Technical problems to be solved
为了解决现有技术的上述问题,本实用新型提供一种能够协调伸缩缝两侧的变形并能够增加伸缩缝处的路面抗变形能力的隧道伸缩缝变形协调及排水结构。In order to solve the above problems in the prior art, the utility model provides a tunnel expansion joint deformation coordination and drainage structure that can coordinate the deformation of both sides of the expansion joint and increase the anti-deformation ability of the road surface at the expansion joint.
(二)技术方案(2) Technical solutions
为了达到上述目的,本实用新型采用的主要技术方案包括:In order to achieve the above object, the main technical solutions adopted by the utility model include:
本实用新型提供一种隧道伸缩缝变形协调及排水结构,包括隧道结构底板、混凝土铺装层、路面层、多孔橡胶板、热熔型土工布、剪力杆、中埋式钢边橡胶止水带、开孔波纹管和密封胶条,在隧道结构底板中设置有伸缩缝,多孔橡胶板设置在混凝土铺装层内并且设置在伸缩缝上方;热熔型土工布敷设在多孔橡胶板朝向路面层的一侧,并在多孔橡胶板两侧各延伸出50cm;在伸缩缝处设置有剪力杆;在混凝土结构内部浇筑有中埋式钢边橡胶止水带;在伸缩缝上端和多孔橡胶板底部两侧设置密封胶条;开孔波纹管设置底板凹槽内,且在所述开孔波纹管四周填充压实的砂砾石。The utility model provides a tunnel expansion joint deformation coordination and drainage structure, which includes a tunnel structure bottom plate, a concrete pavement layer, a pavement layer, a porous rubber plate, a hot-melt geotextile, a shear rod, and a buried steel edge rubber water stop Belt, perforated corrugated pipe and sealing rubber strip, expansion joints are set in the bottom plate of the tunnel structure, porous rubber plates are set in the concrete pavement layer and above the expansion joints; hot-melt geotextiles are laid on the porous rubber plates facing the road surface One side of the layer, and extend 50cm on both sides of the porous rubber plate; a shear bar is set at the expansion joint; a mid-buried steel edge rubber waterstop is poured inside the concrete structure; the upper end of the expansion joint and the porous rubber Sealing strips are arranged on both sides of the bottom of the plate; the perforated corrugated pipe is arranged in the groove of the bottom plate, and compacted gravel is filled around the perforated corrugated pipe.
进一步地,多孔橡胶板沿隧道路面宽度方向上设置有有贯通的孔洞。Further, the porous rubber plate is provided with through holes along the width direction of the tunnel road surface.
进一步地,多孔橡胶板的底部设置有沟槽,沟槽的横截面形状为半圆形。Further, the bottom of the porous rubber plate is provided with a groove, and the cross-sectional shape of the groove is semicircular.
进一步地,多孔橡胶板的厚度为8cm~12cm。Further, the thickness of the porous rubber plate is 8cm-12cm.
进一步地,还包括发泡PE垫板,发泡PE垫板填充在伸缩缝里面。Further, it also includes a foamed PE pad, which is filled in the expansion joint.
进一步地,开孔波纹管的材料为HDPE,密封胶条材料为遇水膨胀橡胶材料。Further, the material of the perforated corrugated pipe is HDPE, and the material of the sealing strip is water-swellable rubber material.
进一步地,多孔橡胶板的材料为三元乙丙橡胶材料。Further, the material of the porous rubber plate is EPDM material.
(三)有益效果(3) Beneficial effects
本实用新型的有益效果是:本实用新型的隧道伸缩缝变形协调及排水结构,采用在隧道结构伸缩缝处安装多孔橡胶板的方式,协调伸缩缝两侧的变形,增加伸缩缝处的路面抗变形能力和防排水能力,增加了隧道的安全保障,减少了隧道的修护成本。The beneficial effects of the utility model are: the tunnel expansion joint deformation coordination and drainage structure of the utility model adopts the method of installing porous rubber plates at the expansion joints of the tunnel structure, coordinates the deformation on both sides of the expansion joints, and increases the road surface resistance at the expansion joints. Deformation ability and waterproof and drainage ability increase the safety of the tunnel and reduce the maintenance cost of the tunnel.
附图说明Description of drawings
图1为本实用新型的隧道伸缩缝变形协调及排水结构的多孔橡胶板结构断面图;Fig. 1 is the cross-sectional view of the porous rubber plate structure of the tunnel expansion joint deformation coordination and drainage structure of the present utility model;
图2为本实用新型的隧道伸缩缝变形协调及排水结构的变形协调结构横断面图;Fig. 2 is a cross-sectional view of the deformation coordination structure of the tunnel expansion joint and the drainage structure of the utility model;
图3为本实用新型的隧道伸缩缝变形协调及排水结构的变形协调结构纵断面图;Fig. 3 is a longitudinal section view of the deformation coordination structure of the tunnel expansion joint and the drainage structure of the utility model;
图4为本实用新型的隧道伸缩缝变形协调及排水结构的A处波纹管与排水边沟连接示意图。Fig. 4 is a schematic diagram of the connection between the corrugated pipe and the drainage side ditch at point A of the tunnel expansion joint deformation coordination and drainage structure of the present invention.
【附图标记说明】[Description of Reference Signs]
1:多孔橡胶板;2:热熔型土工布;3:剪力杆;4:中埋式钢边橡胶止水带;5:开孔波纹管;6:密封胶条;7:发泡PE垫板;8:伸缩缝;9:砂砾石;101:隧道主体结构底板;102:D8型钢筋网;103:混凝土铺装层;104:改性乳化沥青粘性防水层;105:路面下面层;106:路面上面层;107:路面层;108:排水边沟;109:孔洞。1: Porous rubber plate; 2: Hot-melt geotextile; 3: Shear bar; 4: Buried steel edge rubber waterstop; 5: Open-hole bellows; 6: Sealing strip; 7: Foamed PE Backing plate; 8: expansion joint; 9: gravel; 101: tunnel main structure floor; 102: D8 steel mesh; 103: concrete pavement layer; 104: modified emulsified asphalt viscous waterproof layer; 105: pavement underlayer; 106: upper layer of pavement; 107: pavement layer; 108: drainage gutter; 109: hole.
具体实施方式Detailed ways
为了更好的解释本实用新型,以便于理解,下面结合附图,通过具体实施方式,对本实用新型作详细描述。In order to better explain the utility model and facilitate understanding, the utility model will be described in detail below through specific implementation modes in conjunction with the accompanying drawings.
本实用新型提供一种隧道伸缩缝变形协调及排水结构,包括隧道结构底板101、混凝土铺装层103、路面层107、多孔橡胶板1、热熔型土工布2、剪力杆3、中埋式钢边橡胶止水带4、开孔波纹管5和密封胶条 6,在隧道结构底板101中设置有伸缩缝8,多孔橡胶板1设置在隧道的混凝土铺装层103内并且设置在伸缩缝8上方,能够协调伸缩缝8两侧的变形,增加伸缩缝8处的路面抗变形能力,热熔型土工布2敷设在多孔橡胶板1朝向路面层107的一侧,并在多孔橡胶板1两侧各延伸出 50cm,能够增强多孔橡胶板1和路面结构间的连接关系,防止路面层107 反射裂缝的出现,在伸缩缝8处设置有剪力杆3,剪力杆3与伸缩缝8垂直设置,剪力杆3为φ40钢筋和钢套管组成,具有抵抗伸缩缝8上剪力的作用,控制剪切变形,并允许伸缩缝8在隧道轴线方向上的变形,中埋式钢边橡胶止水带4设置在混凝土结构内部浇筑而成并且设置在伸缩缝8 两侧,对伸缩缝8能够起到更好地防水效果,在伸缩缝8上端和多孔橡胶板1底部两侧设置密封胶条6,能够强化整体结构的防水效果,在多孔橡胶板1下部设置有排水沟槽,排水沟槽沿路面长度方向设置,排水沟槽内埋置有开孔波纹管5,开孔波纹管5四周填充并压实有砂砾石,用于收集并排出渗漏的地下水。The utility model provides a tunnel expansion joint deformation coordination and drainage structure, which includes a tunnel structure bottom plate 101, a concrete pavement layer 103, a pavement layer 107, a porous rubber plate 1, a hot-melt geotextile 2, a shear bar 3, a mid-buried Type steel edge rubber waterstop 4, perforated corrugated pipe 5 and sealing rubber strip 6, expansion joint 8 is set in the tunnel structure floor 101, porous rubber plate 1 is set in the concrete pavement layer 103 of the tunnel and set in the expansion joint Above the joint 8, the deformation on both sides of the expansion joint 8 can be coordinated, and the deformation resistance of the road surface at the expansion joint 8 can be increased. The hot-melt geotextile 2 is laid on the side of the porous rubber sheet 1 facing the road layer 107, and on the Each side of 1 extends 50 cm, which can strengthen the connection relationship between the porous rubber plate 1 and the pavement structure, and prevent the occurrence of reflective cracks in the pavement layer 107. A shear bar 3 is arranged at the expansion joint 8, and the shear bar 3 and the expansion joint 8 is set vertically, the shear bar 3 is composed of φ40 steel bars and steel sleeves, which can resist the shear force on the expansion joint 8, control the shear deformation, and allow the deformation of the expansion joint 8 in the direction of the tunnel axis. The side rubber waterstop 4 is installed inside the concrete structure and is formed on both sides of the expansion joint 8, which can have a better waterproof effect on the expansion joint 8. It is installed on both sides of the upper end of the expansion joint 8 and the bottom of the porous rubber plate 1. The sealing rubber strip 6 can strengthen the waterproof effect of the overall structure. A drainage groove is arranged on the lower part of the porous rubber plate 1. The drainage groove is arranged along the length direction of the road surface. There are perforated corrugated pipes 5 embedded in the drainage groove, and the perforated corrugated pipes The surroundings of the pipe 5 are filled and compacted with sand and gravel for collecting and draining the seeped groundwater.
优选地,多孔橡胶板1内部在隧道路面宽度方向上设置有贯通的孔洞,保持多孔橡胶板1的强度的同时降低自重,节省了用料,同时对多孔橡胶板1上方渗漏下来的水及多孔橡胶板1下方渗漏出来的地下水起到收集的作用。Preferably, the inside of the porous rubber plate 1 is provided with through holes in the width direction of the tunnel road surface, so as to maintain the strength of the porous rubber plate 1 while reducing its own weight, saving materials, and at the same time preventing water and The groundwater leaked from the bottom of the porous rubber plate 1 plays a role of collection.
可选地,多孔橡胶板1的孔洞的形状和分布根据路面荷载条件有所不同,如图1所示,孔洞的横截面形状优选设置为圆形,也可设置为其他几何图形,设置的横截面为圆形的孔洞的尺寸即半径R的大小、最上层的圆形孔洞到多孔橡胶板1上表面距离H1、圆形孔洞之间的垂直距离 H2以及最下层的圆形孔洞到多孔橡胶板1下表面距离H3都能够根据路面荷载条件进行调整。Optionally, the shape and distribution of the holes in the porous rubber sheet 1 are different according to the road load conditions. As shown in FIG. The size of the hole with a circular cross-section is the size of the radius R, the distance H1 from the uppermost circular hole to the upper surface of the porous rubber sheet 1, the vertical distance H2 between the circular holes, and the bottom circular hole to the porous rubber sheet 1 The lower surface distance H3 can be adjusted according to the road load conditions.
进一步,多孔橡胶板1的底部设置有沟槽,沟槽的横截面形状为半圆形,能够更好地收集从伸缩缝8处渗漏出来的地下水,加强伸缩缝8 处的防水效果。Further, the bottom of the porous rubber sheet 1 is provided with a groove, and the cross-sectional shape of the groove is semicircular, which can better collect groundwater leaking from the expansion joint 8 and enhance the waterproof effect of the expansion joint 8 .
优选地,多孔橡胶板1的厚度为8cm~12cm,具体厚度由路面结构设计而定,且如图1所示,多孔橡胶板1的宽度B可优选为1m,具体的宽度可在1m的基础上进行调整以达到能够相对有效覆盖伸缩缝8上方两侧容易产生形变的区域,并且多孔橡胶板1的长度具体应根据隧道结构宽度进行现场切割和拼接。Preferably, the thickness of the porous rubber sheet 1 is 8cm to 12cm, and the specific thickness is determined by the design of the pavement structure. As shown in Figure 1, the width B of the porous rubber sheet 1 can preferably be 1m, and the specific width can be based on 1m. The upper part is adjusted to relatively effectively cover the areas prone to deformation on both sides above the expansion joint 8, and the length of the porous rubber sheet 1 should be cut and spliced on site according to the width of the tunnel structure.
可选地,还包括发泡PE垫板7,在伸缩缝8里面填充发泡PE垫板7,能够对伸缩缝8的变形起到较好的抑制效果。Optionally, a foamed PE backing plate 7 is also included, and the expansion joint 8 is filled with the foamed PE backing plate 7, which can have a better effect of restraining the deformation of the expansion joint 8.
优选地,开孔波纹管5材料为HDPE(高密度聚乙烯),HDPE具有良好的耐热性和耐寒性,化学稳定性好。Preferably, the perforated corrugated pipe 5 is made of HDPE (high-density polyethylene). HDPE has good heat resistance and cold resistance, and good chemical stability.
优选地,密封胶条6使用遇水膨胀橡胶材料,在地下水渗漏的情况下能够对伸缩缝8的变形起到更好的抑制作用。Preferably, the sealing strip 6 is made of water-swellable rubber material, which can better inhibit the deformation of the expansion joint 8 in the case of groundwater leakage.
优选地,多孔橡胶板1的材料为三元乙丙橡胶材料,该材料防水性能优良。Preferably, the material of the porous rubber sheet 1 is EPDM material, which has excellent waterproof performance.
优选地,在热熔型土工布2上方还设置有改性乳化沥青粘性防水层,进一步提高整体结构的防水性能。Preferably, a viscous waterproof layer of modified emulsified asphalt is provided above the hot-melt geotextile 2 to further improve the waterproof performance of the overall structure.
具体地,如图2所示,仅在伸缩缝8上方两侧的一定区域内设置多孔橡胶板1代替混凝土铺装层103,在其他地方设置混凝土铺装层103,混凝土铺装层103内设置有D8型钢筋网102。Specifically, as shown in Figure 2, the porous rubber sheet 1 is only arranged in a certain area on both sides above the expansion joint 8 to replace the concrete pavement 103, and the concrete pavement 103 is arranged in other places, and the concrete pavement 103 is provided with There are D8 type steel mesh 102.
如图3所示,在隧道边侧设置有排水边沟108,在排水边沟108侧部预留有孔洞109,将开孔波纹管5通过孔洞109通入排水边沟108中,以将开孔波纹管5中的水排入排水边沟108中集中排送出隧道,且图4为图3的局部放大图。As shown in Fig. 3, a drainage ditch 108 is provided on the side of the tunnel, and a hole 109 is reserved on the side of the drainage ditch 108. The water in the corrugated pipe 5 is drained into the drainage gutter 108 and sent out of the tunnel, and FIG. 4 is a partially enlarged view of FIG. 3 .
根据本实用新型提供的隧道伸缩缝变形协调及排水结构,现提供该结构的施工方法,包括如下步骤:According to the tunnel expansion joint deformation coordination and drainage structure provided by the utility model, the construction method of the structure is now provided, including the following steps:
步骤S1:对隧道主体结构底板101现场施工,在隧道主体结构底板 101中设置伸缩缝8,并在伸缩缝8上端预设排水沟槽,在对隧道主体结构底板101浇筑混凝土时,将剪力杆3、中埋式钢边橡胶止水带4、发泡 PE垫板7等材料埋入伸缩缝8内。Step S1: On-site construction of the tunnel main structure bottom plate 101, expansion joints 8 are set in the tunnel main structure bottom plate 101, and drainage grooves are preset at the upper end of the expansion joints 8, and the shear force is applied to the tunnel main structure bottom plate 101 when pouring concrete. Rod 3, mid-buried steel edge rubber waterstop 4, foamed PE backing plate 7 and other materials are buried in the expansion joint 8.
步骤S2:将开孔波纹管5放入伸缩缝8上端预设的排水沟槽内,在开孔波纹管5外包透水无纺布材料,并在开孔波纹管5四周填充压实砂砾石9。Step S2: Put the perforated corrugated pipe 5 into the preset drainage groove at the upper end of the expansion joint 8, wrap the perforated corrugated pipe 5 with a water-permeable non-woven fabric material, and fill the perforated corrugated pipe 5 with compacted gravel 9 .
步骤S3:对混凝土铺装层103和排水边沟108进行现场施工,在混凝土铺装层103中在预先规划的顶面位置下预留出用于安装多孔橡胶板1 的槽位,在排水边沟108侧壁预留出孔洞109,浇筑混凝土铺装层103和排水边沟108。Step S3: On-site construction is carried out on the concrete pavement layer 103 and the drainage side ditch 108, and a slot for installing the porous rubber sheet 1 is reserved in the concrete pavement layer 103 under the pre-planned top surface position. A hole 109 is reserved on the side wall of the ditch 108, and a concrete pavement layer 103 and a drainage side ditch 108 are poured.
步骤S4:安装多孔橡胶板1,多孔橡胶板1设置有横截面形状为半圆形的沟槽的一面朝向地面,然后将多孔橡胶板1放置在混凝土铺装层预留的槽位中并紧贴混凝土铺装层,多孔橡胶板1的顶面与铺装层预先规划的顶面位置齐平,多孔橡胶板1的宽度沿伸缩缝8对称设置。Step S4: Install the porous rubber sheet 1, the side of the porous rubber sheet 1 provided with a semicircular groove in cross section faces the ground, then place the porous rubber sheet 1 in the slot reserved for the concrete paving layer and tighten it tightly When the concrete pavement is pasted, the top surface of the porous rubber sheet 1 is flush with the pre-planned top surface of the pavement layer, and the width of the porous rubber sheet 1 is arranged symmetrically along the expansion joint 8 .
步骤S5:将HDPE开孔波纹管5穿过排水边沟108侧部预留的孔洞 109,可排出渗入的地下水。Step S5: The HDPE perforated corrugated pipe 5 is passed through the hole 109 reserved at the side of the drainage ditch 108 to discharge the infiltrated groundwater.
步骤S6:在多孔橡胶板1和混凝土铺装层103上敷设热熔型土工布 2,敷设时在多孔橡胶板1两侧各延伸50cm。Step S6: Lay hot-melt geotextile 2 on porous rubber plate 1 and concrete pavement layer 103, extend 50cm respectively on both sides of porous rubber plate 1 when laying.
步骤S7:敷设好热熔型土工布2后,施工路面层107。Step S7: After laying the hot-melt geotextile 2, construct the pavement layer 107.
本实用新型采用在隧道结构伸缩缝处安装多孔橡胶板的方式,协调伸缩缝两侧的变形,增加伸缩缝处的路面抗变形能力和防排水能力,增加了隧道的安全保障,减少了隧道的修护成本。The utility model adopts the method of installing porous rubber plates at the expansion joints of the tunnel structure, coordinates the deformation on both sides of the expansion joints, increases the anti-deformation ability and water-proof capacity of the road surface at the expansion joints, increases the safety of the tunnel, and reduces the traffic accidents of the tunnel. repair costs.
需要理解的是,以上对本实用新型的具体实施例进行的描述只是为了说明本实用新型的技术路线和特点,其目的在于让本领域内的技术人员能够了解本实用新型的内容并据以实施,但本实用新型并不限于上述特定实施方式。凡是在本实用新型权利要求的范围内做出的各种变化或修饰,都应涵盖在本实用新型的保护范围内。It should be understood that the above description of the specific embodiments of the utility model is only to illustrate the technical route and characteristics of the utility model, and its purpose is to allow those skilled in the art to understand the content of the utility model and implement it accordingly. But the utility model is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of the utility model shall be covered by the protection scope of the utility model.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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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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