WO2022242153A1 - 地铁主体结构中侧墙与隧洞的防水结构 - Google Patents

地铁主体结构中侧墙与隧洞的防水结构 Download PDF

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Publication number
WO2022242153A1
WO2022242153A1 PCT/CN2021/139190 CN2021139190W WO2022242153A1 WO 2022242153 A1 WO2022242153 A1 WO 2022242153A1 CN 2021139190 W CN2021139190 W CN 2021139190W WO 2022242153 A1 WO2022242153 A1 WO 2022242153A1
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WIPO (PCT)
Prior art keywords
grouting
side wall
tunnel
water
sealing
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PCT/CN2021/139190
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English (en)
French (fr)
Inventor
周浩
李洋
王利强
龙根望
崔岭峰
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中铁五局集团有限公司
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Publication of WO2022242153A1 publication Critical patent/WO2022242153A1/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
    • 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
    • E02D31/04—Watertight packings for use under hydraulic pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • 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
    • E02D2300/0004—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
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/0021—Mortar

Definitions

  • the invention relates to the technical field of underground construction engineering, in particular to a waterproof structure for side walls and tunnels in a main structure of a subway.
  • the parts where the subway leaks water are generally concentrated in the weak parts of the structure such as construction joints, induced joints, concrete structure cracks, concrete defect parts, temperature shrinkage cracks and pre-embedded bolt holes and other parts.
  • most of the seals at the joints between the tunnel body and the side wall are directly sealed by sealing elements, or a post-installed transitional ring beam is used to connect the transitional ring beam and the tunnel body, and between the transitional ring beam and the side wall.
  • the sealing rubber strips are installed separately, the sealing method is single, and the sealing effect is poor, and the transitional ring beam is prefabricated first and then installed later, which is difficult to assemble and difficult to form a good combination with the tunnel body and side walls, resulting in poor structural stability. It is not easy to ensure the durability of the seal.
  • 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 side walls and tunnels in the main structure of the subway with good waterproof sealing, high stability, long service life and easy construction.
  • a waterproof structure for a side wall and a tunnel in a main structure of a subway comprising a tunnel pipe body and a side wall body, the side wall body is provided with a butt joint hole, and a post-cast concrete ring is provided between the tunnel pipe body and the side wall body
  • the post-cast concrete ring girder has an inscribed part pierced in the butt hole and a socket part sleeved outside the end of the tunnel body, and a second A sealing assembly and a first grouting sealing body formed by grouting, a second sealing assembly and a second grouting sealing body formed by grouting are arranged between the socket part and the tunnel body, the A first grouting pipe for grouting to form the first grouting sealing body and a second grouting pipe for grouting to form the second grouting sealing body are embedded in the post-casting concrete ring beam.
  • Two first water-swellable water-stop rings arranged at intervals are arranged between the inner connection part and the wall of the docking hole, and the first grouting sealing body is located between the two first water-swellable water-stop rings;
  • Two second water-swellable water-stop rings arranged at intervals are arranged between the sleeve portion and the tunnel body, and the second grouting sealing body is located between the second water-swellable water-stop rings.
  • One side of the side wall is also provided with a protective wall, the protective wall has a through hole for the tunnel body to pass through and extend to the side wall, and the socket part extends to the tunnel body and the through hole in the gap between the walls.
  • the side of the enclosure wall away from the side wall is provided with an annular sealing body formed by grouting, and the annular sealing body is connected to the tunnel body and the enclosure wall.
  • the annular sealing body partially extends into the gap between the tunnel body and the wall of the through hole.
  • a plurality of third grouting pipes extending through the socket portion to the annular sealing body are embedded in the post-cast concrete ring beam, and the plurality of third grouting pipes are arranged at intervals around the tunnel body.
  • a waterproof surface layer is provided between the side wall body and the enclosure wall.
  • a third water-expandable water-stop ring is provided between the waterproof surface layer and the side wall.
  • a mortar leveling layer is provided between the waterproof surface layer and the side wall.
  • the present invention has the advantages of:
  • the first sealing assembly and the first grouting sealing body are arranged between the inner connection part and the wall of the butt hole, and the socket part and the tunnel body are simultaneously provided.
  • the post-cast concrete ring beam can be cast on site by building a formwork.
  • the first sealing component and the second sealing component are pre-installed before the post-cast concrete ring beam is formed.
  • the first grouting sealing body and the second grouting sealing body After the post-casting concrete ring beam is formed, the first grouting pipe and the second grouting pipe are respectively used for grouting, and the construction is simple and efficient.
  • Fig. 1 is a partial cross-sectional structural schematic diagram of the waterproof structure of the side wall and the tunnel in the main structure of the subway.
  • Fig. 2 is a partial cross-sectional enlarged structural schematic diagram of the connection between the tunnel body, the side wall and the post-cast concrete ring beam.
  • Tunnel pipe body 1. Tunnel pipe body; 2. Side wall; 21. Butt hole; 3. Post-cast concrete ring beam; 31. Inner part; 32. Socket part; 4. Enclosure wall; 41. Through hole; 5. Annular sealing body; 6. waterproof surface layer; 7. mortar leveling layer; 101. first grouting pipe; 102. second grouting pipe; 103. third grouting pipe; ; 202, the second water-expandable water-stop ring; 203, the third water-expandable water-stop ring.
  • the waterproof structure of the side wall and the tunnel in the main structure of the subway of the present embodiment comprises the tunnel pipe body 1 and the side wall body 2, and the side wall body 2 is provided with the docking hole 21, and the docking hole 21 uses Butted with the end of the tunnel pipe body 1, a post-cast concrete ring beam 3 is provided between the tunnel pipe body 1 and the side wall 2, and the post-cast concrete ring beam 3 has an inner connection part 31 pierced in the butt joint hole 21 And the sleeve part 32 sleeved outside the end of the tunnel body 1, the first sealing assembly and the first grouting sealing body formed by grouting are arranged between the inner connection part 31 and the wall of the butt hole 21, and the sleeve A second sealing assembly and a second grouting sealing body formed by grouting are arranged between the connecting part 32 and the tunnel body 1, and a post-cast concrete ring beam 3 is embedded with a sealing body for grouting to form the first grouting sealing body.
  • the first grouting pipe 101
  • a first sealing assembly and a first grouting sealing body are provided between the inner connection part 31 and the wall of the butt hole 21, and the socket part 32 and the tunnel body 1
  • the second sealing assembly and the second grouting sealing body are arranged at the same time. Since the first grouting sealing body and the second grouting sealing body are formed by grouting, they cooperate with the tunnel pipe body 1, the side wall body 2 and the
  • the combined form of the post-cast concrete ring beam 3 has good waterproof and sealing performance, high structural integrity and stability, and long service life, and the combination of grouting sealing body and sealing components forms multiple seals of different sealing forms, which is also Watertightness can be further improved.
  • the post-cast concrete ring beam 3 can be poured and formed on-site by building a formwork, the first sealing assembly and the second sealing assembly are pre-installed before the post-cast concrete ring beam 3 is formed, and the first grouting sealing body and the second grouting
  • the sealing body is formed by grouting through the first grouting pipe 101 and the second grouting pipe 102 after the post-casting concrete ring beam 3 is formed, and the construction is simple and efficient.
  • the first sealing assembly includes two first water-swellable water-stop rings 201 arranged at intervals, and the first grouting sealing body is located between the two first water-swellable water-stop rings 201;
  • the second sealing assembly It includes two second water-swellable water-stop rings 202 arranged at intervals, and the second grouting sealing body is located between the second water-swellable water-stop rings 202 .
  • the first water-swellable water-stop ring 201 arranged at two intervals not only plays a sealing role alone, but also forms a space for grouting to form a first grouting sealing body with the inner connection part 31 and the wall of the butt hole 21, which is beneficial to the first grouting sealing body.
  • the functions of the two second water-swellable water-stop rings 202 arranged at intervals are similar to those of the first water-swellable water-stop ring 201 .
  • the sleeve portion 32 has an annular gap with the end surface of the tunnel body 1, and the two second water-swellable water-stop rings 202 are located in the annular gap. It is convenient to install the second water-expandable water-stop ring 202 and the second grouting pipe 102 .
  • an enclosure wall 4 is provided on one side of the side wall 2, and the enclosure wall 4 has a through hole 41 for the tunnel body 1 to pass through and extend to the side wall 2, and the sleeve portion 32 extends to the tunnel. In the gap between the pipe body 1 and the wall of the through hole 41 .
  • the stability of the post-cast concrete ring beam 3 can be improved, and the waterproof and sealing performance can be further improved.
  • the side of the enclosure wall 4 away from the side wall 2 is provided with an annular sealing body 5 formed by grouting, and the annular sealing body 5 is connected to the tunnel body 1 and the enclosure wall 4 .
  • the annular sealing body 5 plays the role of sealing the gap between the tunnel body 1 and the retaining wall 4, preventing the water in the external soil from entering the gap between the tunnel pipe body 1 and the retaining wall 4.
  • a seal is formed on the outside of the gap between the tunnel pipe bodies 1, which can further improve the waterproof and sealing performance.
  • the annular sealing body 5 partially extends into the gap between the tunnel body 1 and the wall of the through hole 41, which can improve the connection stability between the annular sealing body 5 and the tunnel body 1 and the surrounding wall 4 , improve the sealing effect on the gap between the tunnel body 1 and the retaining wall 4 .
  • the post-cast concrete ring beam 3 is embedded with a plurality of third grouting pipes 103 arranged at intervals around the tunnel body 1, and each third grouting pipe 103 extends through the socket part 32 to the tunnel body 1. 1 and the annular sealing body 5 in the gap between the through hole 41 wall. That is, before the grouting of the annular sealing body 5, the third grouting pipe 103 passes the grout into the gap between the tunnel body 1 and the wall of the through hole 41, which facilitates the forming of the annular sealing body 5, and Improve the compactness of the annular sealing body 5 after forming to ensure the sealing effect.
  • a waterproof surface layer 6 is provided between the side wall 2 and the retaining wall 4 , which can improve the waterproof sealing of the side wall 2 and between the side wall 2 and the post-cast concrete ring beam 3 .
  • a third water-expandable water-stop ring 203 is provided between the waterproof surface layer 6 and the side wall 2, which can further improve the waterproof sealing performance.
  • a mortar leveling layer 7 is provided between the waterproof surface layer 6 and the side wall body 2, so that the waterproof surface layer 6 and the side wall body 2, the waterproof surface layer 6 and the mortar leveling layer 7 all form a good fit, It is beneficial to improve the waterproof sealing.
  • the annular sealing body 5, the first grouting sealing body and the second grouting sealing body are all formed by grouting with hydrophilic epoxy grout.
  • the grouting pressure is gradually increased to 0.8MPa and maintained Stop grouting after at least five minutes.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

本发明公开了一种地铁主体结构中侧墙与隧洞的防水结构，包括隧洞管体和侧墙体，侧墙体设有对接孔，隧洞管体和侧墙体之间设有后浇混凝土环梁，后浇混凝土环梁具有穿设在对接孔内的内接部和套设在隧洞管体端部外的套接部，内接部与对接孔孔壁之间设有第一密封组件和采用注浆方式形成的第一注浆密封体，套接部与隧洞管体之间设有第二密封组件和采用注浆方式形成的第二注浆密封体，后浇混凝土环梁内埋设有用于注浆形成第一注浆密封体的第一注浆管和用于注浆形成第二注浆密封体的第二注浆管。本发明具有防水密封性好、稳定性高、寿命长、施工简便等优点。

Description

地铁主体结构中侧墙与隧洞的防水结构 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侧墙与隧洞的防水结构。
背景技术
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。
地铁出现渗漏水的部位一般主要集中在结构薄弱处，如施工缝、诱导缝、混凝土结构裂缝、混凝土缺陷部位、温度收缩裂缝和预埋螺栓孔等部位。目前，隧洞管体和侧墙体连接处的密封大都是采用密封元件直接密封，或者采用设置一个后装的过渡环梁，在过渡环梁与隧洞管体、过渡环梁与侧墙体之间分别设置密封胶条，其密封方式单一、密封效果差，且过渡环梁采用先预制再后装的方式，装配困难，难以与隧洞管体和侧墙体形成良好的结合，导致结构稳定性差，不易保证密封的持久性。
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，提供一种防水密封性好、稳定性高、寿命长、施工简便的地铁主体结构中侧墙与隧洞的防水结构。
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侧墙与隧洞的防水结构，包括隧洞管体和侧墙体，所述侧墙体设有对接孔，所述隧洞管体和侧墙体之间设有后浇混凝土环梁，所述后浇混凝土环梁具有穿设在对接孔内的内接部和套设在隧洞管体端部外的套接部，所述内接部与对接孔孔壁之间设有第一密封组件和采用注浆方式形成的第一注浆密封体，所述套接部与隧洞管体之间设有第二密封组件和采用注浆方式形成的第二注浆密封体，所述后浇混凝土环梁内埋设有用于注浆形成所述第一注浆密封体的第一注浆管和用于注浆形成所述第二注浆密封体的第二注浆管。
作为上述技术方案的进一步改进：
所述内接部与对接孔孔壁之间设有两个间隔布置的第一遇水膨胀止水环，所述第一注浆密封体位于两个第一遇水膨胀止水环之间；所述套接部与隧洞管体之间设有两个间隔布置的第二遇水膨胀止水环，所述第二注浆密封体位于第二遇水膨胀止水环之间。
所述套接部具有与隧洞管体端面之间具有环面形间隙，两个所述第二遇水膨胀止水环位 于所述环面形间隙中。
所述侧墙体的一侧还设有围护墙，所述围护墙具有供隧洞管体穿过向侧墙体延伸的贯穿孔，所述套接部延伸至隧洞管体与贯穿孔孔壁之间的间隙中。
所述围护墙远离侧墙体的一侧设有采用注浆方式形成的环形密封体，所述环形密封体与隧洞管体和围护墙相接。
所述环形密封体部分延伸至隧洞管体与贯穿孔孔壁之间的间隙中。
所述后浇混凝土环梁内埋设有穿过套接部延伸至所述环形密封体的多根第三注浆管，多根第三注浆管环绕隧洞管体间隔布置。
所述侧墙体与围护墙之间设有防水面层。
所述防水面层与侧墙体之间设有第三遇水膨胀止水环。
所述防水面层与侧墙体之间设有砂浆找平层。
与现有技术相比，本发明的优点在于：
本发明地铁主体结构中侧墙与隧洞的防水结构中，内接部与对接孔孔壁之间同时设有第一密封组件和第一注浆密封体，套接部与隧洞管体之间同时设有第二密封组件和第二注浆密封体，由于第一注浆密封体和第二注浆密封体是采用注浆方式形成的，配合隧洞管体、侧墙体和后浇混凝土环梁的结合形式，其防水密封性好，结构的整体性和稳定性高，寿命长，并且采用注浆密封体和密封组件的组合，形成了不同密封形式的多重密封，也可进一步提升防水密封性。同时，后浇混凝土环梁可通过搭建模板现场浇筑成型，第一密封组件和第二密封组件在后浇混凝土环梁成型前分别预先装设，第一注浆密封体和第二注浆密封体在后浇混凝土环梁成型后分别通过第一注浆管和第二注浆管注浆成型，其施工简便、效率高。
附图说明
图1为地铁主体结构中侧墙与隧洞的防水结构的局部剖视结构示意图。
图2为隧洞管体、侧墙体和后浇混凝土环梁连接处的局部剖视放大结构示意图。
图例说明：
1、隧洞管体；2、侧墙体；21、对接孔；3、后浇混凝土环梁；31、内接部；32、套接部；4、围护墙；41、贯穿孔；5、环形密封体；6、防水面层；7、砂浆找平层；101、第一注浆管；102、第二注浆管；103、第三注浆管；201、第一遇水膨胀止水环；202、第二遇水膨胀止水环；203、第三遇水膨胀止水环。
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和图2所示，本实施例的地铁主体结构中侧墙与隧洞的防水结构，包括隧洞管体 1和侧墙体2，侧墙体2设有对接孔21，对接孔21用于与隧洞管体1的端部对接，隧洞管体1和侧墙体2之间设有后浇混凝土环梁3，后浇混凝土环梁3具有穿设在对接孔21内的内接部31和套设在隧洞管体1端部外的套接部32，内接部31与对接孔21孔壁之间设有第一密封组件和采用注浆方式形成的第一注浆密封体，套接部32与隧洞管体1之间设有第二密封组件和采用注浆方式形成的第二注浆密封体，后浇混凝土环梁3内埋设有用于注浆形成第一注浆密封体的第一注浆管101和用于注浆形成第二注浆密封体的第二注浆管102。
该地铁主体结构中侧墙与隧洞的防水结构中，内接部31与对接孔21孔壁之间同时设有第一密封组件和第一注浆密封体，套接部32与隧洞管体1之间同时设有第二密封组件和第二注浆密封体，由于第一注浆密封体和第二注浆密封体是采用注浆方式形成的，配合隧洞管体1、侧墙体2和后浇混凝土环梁3的结合形式，其防水密封性好，结构的整体性和稳定性高，寿命长，并且采用注浆密封体和密封组件的组合，形成了不同密封形式的多重密封，也可进一步提升防水密封性。同时，后浇混凝土环梁3可通过搭建模板现场浇筑成型，第一密封组件和第二密封组件在后浇混凝土环梁3成型前分别预先装设，第一注浆密封体和第二注浆密封体在后浇混凝土环梁3成型后分别通过第一注浆管101和第二注浆管102注浆成型，其施工简便、效率高。
本实施例中，第一密封组件包括两个间隔布置的第一遇水膨胀止水环201，第一注浆密封体位于两个第一遇水膨胀止水环201之间；第二密封组件包括两个间隔布置的第二遇水膨胀止水环202，第二注浆密封体位于第二遇水膨胀止水环202之间。两个间隔布置的第一遇水膨胀止水环201不仅单独起到了密封作用，且与内接部31和对接孔21孔壁围成供注浆形成第一注浆密封体的空间，利于第一注浆密封体的成型，以及提高第一注浆密封体成型后的密实度，保证密封效果。两个间隔布置的第二遇水膨胀止水环202所起到的作用功能与第一遇水膨胀止水环201类似。
本实施例中，套接部32具有与隧洞管体1端面之间具有环面形间隙，两个第二遇水膨胀止水环202位于环面形间隙中。便于第二遇水膨胀止水环202和第二注浆管102的装设。
本实施例中，侧墙体2的一侧还设有围护墙4，围护墙4具有供隧洞管体1穿过向侧墙体2延伸的贯穿孔41，套接部32延伸至隧洞管体1与贯穿孔41孔壁之间的间隙中。可提升后浇混凝土环梁3的稳固性，进一步提升防水密封性能。
本实施例中，围护墙4远离侧墙体2的一侧设有采用注浆方式形成的环形密封体5，环形密封体5与隧洞管体1和围护墙4相接。环形密封体5起到密封隧洞管体1和围护墙4之间间隙的作用，防止外部土体中的水进入隧洞管体1和围护墙4之间间隙，其在套接部32与隧洞管体1之间间隙的外部形成了一道密封，能够进一步提升防水密封性能。
本实施例中，环形密封体5部分延伸至隧洞管体1与贯穿孔41孔壁之间的间隙中，能够提高环形密封体5与隧洞管体1和围护墙4之间的连接稳固性，提升对隧洞管体1和围护墙4之间间隙的密封作用。
本实施例中，后浇混凝土环梁3内埋设有多根环绕隧洞管体1间隔布置的第三注浆管103，各第三注浆管103穿过套接部32延伸至位于隧洞管体1与贯穿孔41孔壁之间间隙中的环形密封体5。也即在环形密封体5注浆成型之前，第三注浆管103是将浆液通入到隧洞管体1与贯穿孔41孔壁之间间隙中的，这样利于环形密封体5的成型，以及提高环形密封体5成型后的密实度，保证密封效果。
本实施例中，侧墙体2与围护墙4之间设有防水面层6，可提升侧墙体2以及侧墙体2与后浇混凝土环梁3之间的防水密封性。优选的，防水面层6与侧墙体2之间设有第三遇水膨胀止水环203，能进一步提升防水密封性。
本实施例中，防水面层6与侧墙体2之间设有砂浆找平层7，使防水面层6与侧墙体2、防水面层6与砂浆找平层7均形成良好的贴合，利于提升防水密封性。
本实施例中，环形密封体5、第一注浆密封体和第二注浆密封体均采用亲水性环氧浆液注浆形成，注浆时，注浆压力逐渐加压至0.8MPa并保持至少五分钟后停止注浆。
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 (10)

  1. 一种地铁主体结构中侧墙与隧洞的防水结构，包括隧洞管体(1)和侧墙体(2)，所述侧墙体(2)设有对接孔(21)，其特征在于：所述隧洞管体(1)和侧墙体(2)之间设有后浇混凝土环梁(3)，所述后浇混凝土环梁(3)具有穿设在对接孔(21)内的内接部(31)和套设在隧洞管体(1)端部外的套接部(32)，所述内接部(31)与对接孔(21)孔壁之间设有第一密封组件和采用注浆方式形成的第一注浆密封体，所述套接部(32)与隧洞管体(1)之间设有第二密封组件和采用注浆方式形成的第二注浆密封体，所述后浇混凝土环梁(3)内埋设有用于注浆形成所述第一注浆密封体的第一注浆管(101)和用于注浆形成所述第二注浆密封体的第二注浆管(102)。
  2. 根据权利要求1所述的防水结构，其特征在于：所述第一密封组件包括两个间隔布置的第一遇水膨胀止水环(201)，所述第一注浆密封体位于两个第一遇水膨胀止水环(201)之间；所述第二密封组件包括两个间隔布置的第二遇水膨胀止水环(202)，所述第二注浆密封体位于第二遇水膨胀止水环(202)之间。
  3. 根据权利要求2所述的防水结构，其特征在于：所述套接部(32)具有与隧洞管体(1)端面之间具有环面形间隙，两个所述第二遇水膨胀止水环(202)位于所述环面形间隙中。
  4. 根据权利要求1至3中任一项所述的防水结构，其特征在于：所述侧墙体(2)的一侧还设有围护墙(4)，所述围护墙(4)具有供隧洞管体(1)穿过向侧墙体(2)延伸的贯穿孔(41)，所述套接部(32)延伸至隧洞管体(1)与贯穿孔(41)孔壁之间的间隙中。
  5. 根据权利要求4所述的防水结构，其特征在于：所述围护墙(4)远离侧墙体(2)的一侧设有采用注浆方式形成的环形密封体(5)，所述环形密封体(5)与隧洞管体(1)和围护墙(4)相接。
  6. 根据权利要求5所述的防水结构，其特征在于：所述环形密封体(5)部分延伸至隧洞管体(1)与贯穿孔(41)孔壁之间的间隙中。
  7. 根据权利要求5所述的防水结构，其特征在于：所述后浇混凝土环梁(3)内埋设有多根环绕隧洞管体(1)间隔布置的第三注浆管(103)，各第三注浆管(103)穿过套接部(32)延伸至位于隧洞管体(1)与贯穿孔(41)孔壁之间间隙中的环形密封体(5)。
  8. 根据权利要求4所述的防水结构，其特征在于：所述侧墙体(2)与围护墙(4)之间设有防水面层(6)。
  9. 根据权利要求8所述的防水结构，其特征在于：所述防水面层(6)与侧墙体(2)之间设有第三遇水膨胀止水环(203)。
  10. 根据权利要求8所述的防水结构，其特征在于：所述防水面层(6)与侧墙体(2)之间设有砂浆找平层(7)。
PCT/CN2021/139190 2021-05-18 2021-12-17 地铁主体结构中侧墙与隧洞的防水结构 WO2022242153A1 (zh)

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