WO2022242154A1 - 地铁主体结构中的顶板变形缝防水结构 - Google Patents

地铁主体结构中的顶板变形缝防水结构 Download PDF

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Publication number
WO2022242154A1
WO2022242154A1 PCT/CN2021/139192 CN2021139192W WO2022242154A1 WO 2022242154 A1 WO2022242154 A1 WO 2022242154A1 CN 2021139192 W CN2021139192 W CN 2021139192W WO 2022242154 A1 WO2022242154 A1 WO 2022242154A1
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Prior art keywords
layer
waterproof
roof
deformation joint
sealant
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PCT/CN2021/139192
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English (en)
French (fr)
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周浩
潘野
张浩亮
费瑞振
欧可
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中铁五局集团有限公司
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Publication of WO2022242154A1 publication Critical patent/WO2022242154A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00—Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E02D19/08—Restraining of underground water by employing open ditches arranged below the level of the water
    • 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
    • E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
    • 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
    • E02D29/16—Arrangement or construction of joints in foundation structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E02D31/04—Watertight packings for use under hydraulic pressure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/003—Injection of material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0001—Rubbers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/002—Concrete
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0026—Metals
    • E02D2300/0029—Steel; Iron
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2450/00—Gaskets
    • E02D2450/10—Membranes
    • E02D2450/105—Membranes impermeable
    • E02D2450/106—Membranes impermeable for liquids

Definitions

  • the invention relates to the technical field of underground construction engineering, in particular to a waterproof structure for roof deformation joints in a main structure of a subway.
  • Deformation seams are structural seams reserved for this situation.
  • the waterproofing of the deformation joints is very important, and the treatment of every detail is related to the final effect. Since the deformation joints are the parts where the deformation of the building structure is concentrated, the temperature difference deformation and the reasonable settlement deformation of the buildings will cause the width of the deformation joints to change continuously. Set multiple fortifications, and the waterproof structure will not be damaged when the width of the deformation joint changes.
  • the conventional method is to install a steel edge rubber waterstop extending up and down in the middle of the deformation joint, which has the problem of poor waterproof effect, and the steel edge rubber waterstop There are no other sealing structures on both sides, which is easy to age and reduce the service life.
  • the technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a waterproof structure for roof deformation joints in the main structure of the subway with good waterproof sealing effect, long service life, simple construction and low cost.
  • a roof deformation joint waterproof structure in the main body structure of a subway comprising two roof main bodies separately arranged on both sides of the deformation joint, a steel edge rubber waterstop is provided in the middle of the deformation joint, and the steel edge rubber waterstop
  • the two sides respectively extend into the main bodies of the two top plates, and the deformation joints above and below the steel edge rubber waterstop are provided with a waterproof mortar grouting molding layer and a sealant layer, and the waterproof mortar grouting molding layer Located between the steel edge rubber waterstop and the sealant layer, the waterproof mortar grouting molding layer and the sealant layer are both bonded to the two roof main bodies.
  • the waterproof mortar grouting forming layer and the sealant layer are provided with a first isolation layer separating the waterproof mortar grouting forming layer and the sealant layer, and at least one of the roof main bodies corresponds to each waterproof mortar grouting forming layer.
  • the layer is provided with a grouting pipe communicating with the space of the deformation joint where the waterproof mortar grouting forming layer is located.
  • the side of the sealant layer away from the waterproof mortar grouting forming layer is provided with a second isolation layer.
  • a flexible waterproof reinforcement layer is provided on the top of the deformation joint, and the two sides of the flexible waterproof reinforcement layer respectively overlap with the top surfaces of the two roof main bodies to seal the top of the deformation joint.
  • the top surfaces of the two roof main bodies are laid with an outer flexible waterproof layer covering the flexible waterproof reinforcement layer, and a concrete protective layer is arranged above the outer flexible waterproof layer.
  • the waterproof mortar grouting forming layer is a structure formed after grouting with polymer waterproof mortar, the sealant layer above the steel edge rubber waterstop is a low modulus single-component polyurethane sealant, and the steel edge
  • the sealant layer under the rubber waterstop is a high-modulus single-component polyurethane sealant, the first isolation layer and the second isolation layer are kraft paper, and the flexible waterproof reinforcement layer and the outer flexible waterproof layer are flexible waterproof rolls .
  • a drainage groove for receiving the water flow seeping out from the deformation joint.
  • the drainage groove includes a body with grooves, the two sides of the body are respectively provided with connecting edges, and the connecting edges on both sides of the body are respectively connected with the two top plate main bodies through fasteners, and each top plate main body is connected with The gap between the corresponding connecting edges is sealed by a sealant.
  • the two top plate main bodies are provided with gaps at the deformation joints, and the gaps of the two top plate main bodies form a concave accommodation groove, and the drainage groove is entirely accommodated in the accommodation groove.
  • the present invention has the advantages of:
  • the roof deformation joint waterproof structure in the subway main structure of the present invention is provided with a waterproof mortar grouting forming layer and a sealant layer above and below the steel edge rubber waterstop, and the waterproof mortar grouting forming layer and the sealant layer are both It is bonded with the two top plate bodies to form a seal and isolation on both sides of the steel edge rubber waterstop, which can improve the waterproof sealing effect and prolong the service life of the steel edge rubber waterstop.
  • the waterproof mortar grouting molding layer adopts injection The grouting method is formed, and the grouting molding space of the waterproof mortar grouting molding layer is formed between the sealant layer and the steel edge rubber waterstop. No other enclosure structures are required, and the construction is simple and low in cost.
  • Fig. 1 is a schematic diagram of a partial main sectional structure of the roof deformation joint waterproof structure.
  • the roof deformation joint waterproof structure in the subway main structure of this embodiment includes two roof main bodies 200 located on both sides of the deformation joint 100, and the middle part of the deformation joint 100 is provided with a steel edge rubber waterstop 1
  • the two sides of the steel-edged rubber waterstop 1 respectively extend into the two roof main bodies 200, and the deformation joints 100 above and below the steel-edged rubber waterstop 1 are provided with a waterproof mortar grouting forming layer 2 and sealing
  • the adhesive layer 3 and the waterproof mortar grouting forming layer 2 are located between the steel edge rubber waterstop 1 and the sealant layer 3 , and both the waterproof mortar grouting forming layer 2 and the sealant layer 3 are bonded to the two roof main bodies 200 .
  • the roof deformation joint waterproof structure in the main structure of the subway is equipped with a waterproof mortar grouting forming layer 2 and a sealant layer 3 above and below the steel edge rubber waterstop 1, and the waterproof mortar grouting forming layer 2 and sealant Both layers 3 are bonded to the two roof main bodies 200, forming a seal and isolation on both sides of the steel-edged rubber waterstop 1, which can improve the sealing effect and prolong the service life of the steel-edged rubber waterstop 1.
  • waterproof mortar is injected
  • the grout forming layer 2 is formed by grouting, and the grouting forming space of the waterproof mortar grouting forming layer 2 is formed between the sealant layer 3 and the steel edge rubber waterstop 1. No other enclosure structures are required, and the construction is simple ,low cost.
  • a first isolation layer 4 separating the waterproof mortar grouting layer 2 and the sealant layer 3 is provided between the waterproof mortar grouting layer 2 and the sealant layer 3, and at least one roof main body 200 corresponds to Each waterproof mortar grouting molding layer 2 is provided with a grouting pipe 300 communicating with the space of the deformation joint 100 where the waterproof mortar grouting molding layer 2 is located. Setting the first isolation layer 4 facilitates the forming of the sealant layer 3, and helps control the amount of glue used when the sealant layer 3 is formed, avoiding excessive glue filling the space where the waterproof mortar grouting molding layer 2 is located, and reducing costs.
  • the side of the sealant layer 3 away from the waterproof mortar grouting molding layer 2 is provided with a second isolation layer 5, the second isolation layer 5 is convenient for forming the sealant layer 3, so that the surface of the sealant layer 3 is smooth, Simultaneously, it also plays a certain sealing and isolation effect on the sealant layer 3 .
  • the top of the deformation seam 100 is provided with a flexible waterproof reinforcement layer 6, and the two sides of the flexible waterproof reinforcement layer 6 are respectively overlapped with the top surfaces of the two roof main bodies 200 to seal the top of the deformation seam 100, which can lift Sealing effect.
  • the top surfaces of the two roof main bodies 200 are laid with an outsourcing flexible waterproof layer 7 covering the flexible waterproof reinforcement layer 6, and a concrete protective layer 8 is provided above the outsourcing flexible waterproof layer 7 to form multiple seals and layer-by-layer isolation.
  • the sealing effect can be further improved.
  • the waterproof mortar grouting molding layer 2 is a structure formed after grouting with polymer waterproof mortar, and the sealant layer 3 above the steel edge rubber waterstop 1 is a low modulus single-component polyurethane sealant.
  • the sealant layer 3 under the steel edge rubber waterstop 1 is a high modulus single-component polyurethane sealant, the first isolation layer 4 and the second isolation layer 5 are kraft paper, the flexible waterproof reinforcement layer 6 and the outer flexible waterproof layer 7 are Flexible waterproof membrane.
  • a drainage groove 9 for receiving water seeping from the deformation joint 100 is installed directly below the deformation joint 100 .
  • the drainage groove 9 is provided to centrally export the water when leakage occurs, so as to prevent the leakage water from affecting the roof main body 200 and the components installed thereon.
  • the drainage groove 9 includes a body 91 with a groove, and the two sides of the body 91 are respectively provided with connecting edges 92, and the connecting edges 92 on both sides of the body 91 are respectively connected to the two top plate main bodies 200 through fasteners. , its structure is simple, easy to install. And the gap between each top plate main body 200 and the corresponding connecting edge 92 is sealed by sealant to prevent water from flowing out.
  • the two top plate main bodies 200 are provided with gaps at the deformation joints 100, and the gaps of the two top plate main bodies 200 form a concave accommodating groove 400, and the drainage groove 9 is accommodated in the accommodating groove 400 as a whole. . Avoiding the convexity of the drainage groove 9 can improve the compactness and aesthetics of the structure.

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Abstract

本发明公开了一种地铁主体结构中的顶板变形缝防水结构，包括分设于变形缝两侧的两个顶板主体，变形缝的中部设有钢边橡胶止水带，钢边橡胶止水带的两侧边分别对应延伸至两个顶板主体内，钢边橡胶止水带上方和下方的变形缝中均设有防水砂浆注浆成型层和密封胶层，防水砂浆注浆成型层位于钢边橡胶止水带和密封胶层之间，防水砂浆注浆成型层和密封胶层均与两个顶板主体粘结。本发明具有防水密封效果好、使用寿命长、施工简便、成本低等优点。

Description

地铁主体结构中的顶板变形缝防水结构 技术领域
本发明涉及地下建筑工程技术领域，具体涉及一种地铁主体结构中的顶板变形缝防水结构。
背景技术
建筑物在外界因素作用下常会产生变形，导致开裂甚至破坏。变形缝是针对这种情况而预留的构造缝。变形缝处的防水非常重要，每个细节的处理都关系到最后的效果，由于变形缝是建筑物结构变形集中的部位，温差变形、建筑物合理沉降变形都会使变形缝的宽度不断变化，要求设置多道设防，并在变形缝的宽度变化时不会造成防水结构的破坏。
地铁车站的建设需要投入大量的资金，且地铁车站的使用寿命较长，与居民的日常生活有着极为密切的关系，因此其功能应当得到各方面的重视，尤其是对于防水设施的建设，更应当做好充分的设计，保证防水性能良好，保证地铁的质量和使用年限。与地面上的建筑工程不同，地铁工程因其主体结构都在地下进行，为满足使用性与耐久性的要求，对车站结构的防水性有很高要求。
现有地铁站主体的顶板处变形缝的防水结构，常规做法都是在变形缝的中部设有上下延伸的钢边橡胶止水带，存在防水效果较差的问题，且钢边橡胶止水带两侧没有其他密封结构，容易老化，导致使用寿命降低。
发明内容
本发明要解决的技术问题是克服现有技术存在的不足，提供一种防水密封效果好、使用寿命长、施工简便、成本低的地铁主体结构中的顶板变形缝防水结构。
为解决上述技术问题，本发明采用以下技术方案：
一种地铁主体结构中的顶板变形缝防水结构，包括分设于变形缝两侧的两个顶板主体，所述变形缝的中部设有钢边橡胶止水带，所述钢边橡胶止水带的两侧边分别对应延伸至两个顶板主体内，所述钢边橡胶止水带上方和下方的变形缝中均设有防水砂浆注浆成型层和密封胶层，所述防水砂浆注浆成型层位于钢边橡胶止水带和密封胶层之间，所述防水砂浆注浆成型层和密封胶层均与两个顶板主体粘结。
作为上述技术方案的进一步改进：
所述防水砂浆注浆成型层和密封胶层之间设有将防水砂浆注浆成型层和密封胶层隔开的第一隔离层，至少一个所述顶板主体中对应每个防水砂浆注浆成型层设有与该防水砂浆注浆成型层所在变形缝的空间连通的注浆管。
所述密封胶层远离防水砂浆注浆成型层的一侧设有第二隔离层。
所述变形缝的顶部设有柔性防水加强层，所述柔性防水加强层的两侧边分别与两个顶板主体的顶面搭接以将所述变形缝的顶部密封。
两个所述顶板主体的顶面铺设有覆盖柔性防水加强层的外包柔性防水层，所述外包柔性防水层的上方设有混凝土保护层。
所述防水砂浆注浆成型层为采用聚合物防水砂浆注浆后形成的结构体，所述钢边橡胶止水带上方的密封胶层为低模量单组分聚氨酯密封胶，所述钢边橡胶止水带下方的密封胶层为高模量单组分聚氨酯密封胶，所述第一隔离层和第二隔离层为牛皮纸，所述柔性防水加强层和外包柔性防水层为柔性防水卷材。
所述变形缝的正下方安装有用于承接从变形缝渗出水流的接排水槽。
所述接排水槽包括具有凹槽的本体，所述本体的两侧分别设有连接边，所述本体两侧的连接边分别对应与两个顶板主体通过紧固件连接，且各顶板主体与对应的连接边之间的缝隙通过密封胶密封。
两个所述顶板主体在变形缝处均设有缺口，两个所述顶板主体的缺口构成一凹入的容置槽，所述接排水槽整体容置在所述容置槽内。
与现有技术相比，本发明的优点在于：
本发明的地铁主体结构中的顶板变形缝防水结构，在钢边橡胶止水带的上方和下方均设有防水砂浆注浆成型层和密封胶层，防水砂浆注浆成型层和密封胶层均与两个顶板主体粘结，对钢边橡胶止水带两侧均形成了密封和隔离，能够提升防水密封效果，延长钢边橡胶止水带的使用寿命，同时防水砂浆注浆成型层采用注浆方式成型，密封胶层和钢边橡胶止水带之间形成防水砂浆注浆成型层的注浆成型空间，不需要设置其他的围合结构，其施工简便、成本低。
附图说明
图1为顶板变形缝防水结构的局部主剖视结构示意图。
图例说明：
1、钢边橡胶止水带；2、防水砂浆注浆成型层；3、密封胶层；4、第一隔离层；5、第二隔离层；6、柔性防水加强层；7、外包柔性防水层；8、混凝土保护层；9、接排水槽；91、本体；92、连接边；100、变形缝；200、顶板主体；300、注浆管；400、容置槽。
具体实施方式
以下结合附图和具体实施例对本发明作进一步详细说明。
如图1所示，本实施例的地铁主体结构中的顶板变形缝防水结构，包括分设于变形缝100两侧的两个顶板主体200，变形缝100的中部设有钢边橡胶止水带1，钢边橡胶止水带1的两 侧边分别对应延伸至两个顶板主体200内，钢边橡胶止水带1上方和下方的变形缝100中均设有防水砂浆注浆成型层2和密封胶层3，防水砂浆注浆成型层2位于钢边橡胶止水带1和密封胶层3之间，防水砂浆注浆成型层2和密封胶层3均与两个顶板主体200粘结。该地铁主体结构中的顶板变形缝防水结构，在钢边橡胶止水带1的上方和下方均设有防水砂浆注浆成型层2和密封胶层3，防水砂浆注浆成型层2和密封胶层3均与两个顶板主体200粘结，对钢边橡胶止水带1两侧均形成了密封和隔离，能够提升密封效果，延长钢边橡胶止水带1的使用寿命，同时防水砂浆注浆成型层2采用注浆方式成型，密封胶层3和钢边橡胶止水带1之间形成防水砂浆注浆成型层2的注浆成型空间，不需要设置其他的围合结构，其施工简便、成本低。
本实施例中，防水砂浆注浆成型层2和密封胶层3之间设有将防水砂浆注浆成型层2和密封胶层3隔开的第一隔离层4，至少一个顶板主体200中对应每个防水砂浆注浆成型层2设有与该防水砂浆注浆成型层2所在变形缝100的空间连通的注浆管300。设置第一隔离层4方便密封胶层3的成型，且利于控制密封胶层3成型时的用胶量，避免胶过多向防水砂浆注浆成型层2所在空间填充，可降低成本。
本实施例中，密封胶层3远离防水砂浆注浆成型层2的一侧设有第二隔离层5，第二隔离层5方便密封胶层3的成型，使密封胶层3的表面平整，同时也对密封胶层3起到一定的密封隔离作用。
本实施例中，变形缝100的顶部设有柔性防水加强层6，柔性防水加强层6的两侧边分别与两个顶板主体200的顶面搭接以将变形缝100的顶部密封，能够提升密封效果。
本实施例中，两个顶板主体200的顶面铺设有覆盖柔性防水加强层6的外包柔性防水层7，外包柔性防水层7的上方设有混凝土保护层8，形成多重密封和逐层隔离，可进一步提升密封效果。
本实施例中，防水砂浆注浆成型层2为采用聚合物防水砂浆注浆后形成的结构体，钢边橡胶止水带1上方的密封胶层3为低模量单组分聚氨酯密封胶，钢边橡胶止水带1下方的密封胶层3为高模量单组分聚氨酯密封胶，第一隔离层4和第二隔离层5为牛皮纸，柔性防水加强层6和外包柔性防水层7为柔性防水卷材。
本实施例中，变形缝100的正下方安装有用于承接从变形缝100渗出水流的接排水槽9。设置接排水槽9可在出现渗漏时将水集中导出，避免渗漏水对顶板主体200及其上所安装部件造成影响。
本实施例中，接排水槽9包括具有凹槽的本体91，本体91的两侧分别设有连接边92，本体91两侧的连接边92分别对应与两个顶板主体200通过紧固件连接，其结构简单、安装 简便。且各顶板主体200与对应的连接边92之间的缝隙通过密封胶密封，防止水流出。
本实施例中，两个顶板主体200在变形缝100处均设有缺口，两个顶板主体200的缺口构成一凹入的容置槽400，接排水槽9整体容置在容置槽400内。避免接排水槽9外凸，可提高结构紧凑性和美观性。
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例。对于本技术领域的技术人员来说，在不脱离本发明技术构思前提下所得到的改进和变换也应视为本发明的保护范围。

Claims (9)

  1. 一种地铁主体结构中的顶板变形缝防水结构，包括分设于变形缝(100)两侧的两个顶板主体(200)，所述变形缝(100)的中部设有钢边橡胶止水带(1)，所述钢边橡胶止水带(1)的两侧边分别对应延伸至两个顶板主体(200)内，其特征在于：所述钢边橡胶止水带(1)上方和下方的变形缝(100)中均设有防水砂浆注浆成型层(2)和密封胶层(3)，所述防水砂浆注浆成型层(2)位于钢边橡胶止水带(1)和密封胶层(3)之间，所述防水砂浆注浆成型层(2)和密封胶层(3)均与两个顶板主体(200)粘结。
  2. 根据权利要求1所述的顶板变形缝防水结构，其特征在于：所述防水砂浆注浆成型层(2)和密封胶层(3)之间设有将防水砂浆注浆成型层(2)和密封胶层(3)隔开的第一隔离层(4)，至少一个所述顶板主体(200)中对应每个防水砂浆注浆成型层(2)设有与该防水砂浆注浆成型层(2)所在变形缝(100)的空间连通的注浆管(300)。
  3. 根据权利要求2所述的顶板变形缝防水结构，其特征在于：所述密封胶层(3)远离防水砂浆注浆成型层(2)的一侧设有第二隔离层(5)。
  4. 根据权利要求3所述的顶板变形缝防水结构，其特征在于：所述变形缝(100)的顶部设有柔性防水加强层(6)，所述柔性防水加强层(6)的两侧边分别与两个顶板主体(200)的顶面搭接以将所述变形缝(100)的顶部密封。
  5. 根据权利要求4所述的顶板变形缝防水结构，其特征在于：两个所述顶板主体(200)的顶面铺设有覆盖柔性防水加强层(6)的外包柔性防水层(7)，所述外包柔性防水层(7)的上方设有混凝土保护层(8)。
  6. 根据权利要求5所述的顶板变形缝防水结构，其特征在于：所述防水砂浆注浆成型层(2)为采用聚合物防水砂浆注浆后形成的结构体，所述钢边橡胶止水带(1)上方的密封胶层(3)为低模量单组分聚氨酯密封胶，所述钢边橡胶止水带(1)下方的密封胶层(3)为高模量单组分聚氨酯密封胶，所述第一隔离层(4)和第二隔离层(5)为牛皮纸，所述柔性防水加强层(6)和外包柔性防水层(7)为柔性防水卷材。
  7. 根据权利要求1至6中任一项所述的顶板变形缝防水结构，其特征在于：所述变形缝(100)的正下方安装有用于承接从变形缝(100)渗出水流的接排水槽(9)。
  8. 根据权利要求7所述的顶板变形缝防水结构，其特征在于：所述接排水槽(9)包括具有凹槽的本体(91)，所述本体(91)的两侧分别设有连接边(92)，所述本体(91)两侧的连接边(92)分别对应与两个顶板主体(200)通过紧固件连接，且各顶板主体(200)与对应的连接边(92)之间的缝隙通过密封胶密封。
  9. 根据权利要求8所述的顶板变形缝防水结构，其特征在于：两个所述顶板主体(200)在变形缝(100)处均设有缺口，两个所述顶板主体(200)的缺口构成一凹入的容置槽(400)， 所述接排水槽(9)整体容置在所述容置槽(400)内。
PCT/CN2021/139192 2021-05-18 2021-12-17 地铁主体结构中的顶板变形缝防水结构 WO2022242154A1 (zh)

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