CN111287758A - Shield tail plugging device in shield construction - Google Patents

Shield tail plugging device in shield construction Download PDF

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Publication number
CN111287758A
CN111287758A CN201911326393.4A CN201911326393A CN111287758A CN 111287758 A CN111287758 A CN 111287758A CN 201911326393 A CN201911326393 A CN 201911326393A CN 111287758 A CN111287758 A CN 111287758A
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China
Prior art keywords
shield
water stop
water
tail
stop ring
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CN201911326393.4A
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Chinese (zh)
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CN111287758B (en
Inventor
胡新朋
姚燕明
洪开荣
史渊
张彦伟
陈明清
肖广良
黄毅
杨金刚
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Ningbo Track Traffic Group Co Ltd Construction Branch
China Railway Tunnel Group Co Ltd CRTG
China Railway Tunnel Stock Co Ltd
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Ningbo Track Traffic Group Co Ltd Construction Branch
China Railway Tunnel Group Co Ltd CRTG
China Railway Tunnel Stock Co Ltd
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Application filed by Ningbo Track Traffic Group Co Ltd Construction Branch, China Railway Tunnel Group Co Ltd CRTG, China Railway Tunnel Stock Co Ltd filed Critical Ningbo Track Traffic Group Co Ltd Construction Branch
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Publication of CN111287758A publication Critical patent/CN111287758A/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/0635—Tail sealing means, e.g. used as end shuttering
    • 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
    • E21D11/08—Lining with building materials with preformed concrete slabs
    • 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
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

一种盾构施工中的盾尾堵漏装置，它包括盾构机的盾尾和盾构管片，所述的盾构管片的末端设置有止水圈，该止水圈截面呈L型，其内侧两面分别包覆于盾构管片的末端及盾构管片的内侧；在止水圈的内侧两面设置有止水橡胶，在止水圈的外侧两面设有能将止水圈推向盾构管片末端的推进油缸以及能将止水圈向外顶推的顶推油缸；所述的止水圈上开设有多个注浆口，用于内注聚氨酯止水以及注双液浆回填。本发明在盾尾漏水时，能快速进行全环封堵，并对漏水处进行回填，确保不再漏水，具有结构简单、操作方便的优点，能有效提高盾构施工时的安全性，降低盾尾漏水造成的损失，有利于我国盾构施工技术的发展。

Figure 201911326393

A shield tail leakage plugging device in shield construction, which comprises a shield tail of a shield machine and a shield segment, the end of the shield segment is provided with a water stop ring, and the cross section of the water stop ring is L-shaped , its inner two sides are respectively covered with the end of the shield tunnel segment and the inner side of the shield tunnel segment; the inner side of the water stop ring is provided with water stop rubber, and the outer sides of the water stop ring are provided with water stop rings that can push the water stop ring A push cylinder towards the end of the shield segment and a push cylinder capable of pushing the water stop ring outwards; the water stop ring is provided with a plurality of grouting ports for injecting polyurethane water stop and double fluid injection Slurry backfill. When the shield tail leaks water, the invention can quickly perform full-ring sealing, and backfill the leaking place to ensure no more water leakage, has the advantages of simple structure and convenient operation, can effectively improve the safety during shield construction, and reduce the The loss caused by the leakage of tail water is beneficial to the development of shield construction technology in China.

Figure 201911326393

Description

盾构施工中的盾尾堵漏装置Shield tail plugging device in shield construction

技术领域technical field

本发明涉及一种漏水时进行堵漏的装置，具体的说是一种用于盾构隧道施工中，在盾尾漏水时，能快速堵漏的装置。The invention relates to a device for plugging leaks when water leaks, in particular to a device for quickly plugging leaks when the shield tail leaks in the construction of shield tunnels.

背景技术Background technique

在盾构施工中，由于盾尾刷失效，容易引起盾尾漏水，小的漏水可以加注盾尾油脂加注聚氨酯进行封堵。当盾构机在富水地段且盾尾刷变形到一定程度时，注入的聚氨酯会随着涌出的水快速带走，无法发泡起到阻水效果。此时需要把水流通道先进行封堵，常规堵漏方法只能局部封堵。由于盾尾和管片是圆周通道，局部封堵后又会形成别的漏水通道。In the shield construction, due to the failure of the shield tail brush, it is easy to cause water leakage at the shield tail. Small leakage can be blocked by adding shield tail grease and polyurethane. When the shield machine is in a water-rich area and the shield tail brush is deformed to a certain extent, the injected polyurethane will be quickly taken away with the gushing water, and it will not be able to foam to prevent water. At this time, the water flow channel needs to be blocked first, and the conventional plugging method can only partially block. Since the shield tail and the segment are circular channels, other leakage channels will be formed after partial blocking.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于针对上述现有技术的缺陷和不足，为人们提供一种在盾尾漏水时，能快速进行全环封堵的盾尾堵漏装置。The purpose of the present invention is to provide people with a shield tail leakage plugging device that can quickly perform full-ring sealing when the shield tail leaks water in view of the above-mentioned defects and deficiencies of the prior art.

为实现上述目的，本发明所采取的技术方案是：该盾构施工中的盾尾堵漏装置，它包括盾构机的盾尾和盾构管片，所述的盾构管片的末端设置有止水圈，该止水圈截面呈L型，其内侧两面分别包覆于盾构管片的末端及盾构管片的内侧；在止水圈的内侧两面设置有止水橡胶，在止水圈的外侧两面设有能将止水圈推向盾构管片末端的推进油缸以及能将止水圈向外顶推的顶推油缸；所述的止水圈上开设有多个注浆口，用于内注聚氨脂止水以及注双液浆回填。In order to achieve the above purpose, the technical solution adopted by the present invention is: the shield tail leakage plugging device in the shield construction, which includes the shield tail of the shield machine and the shield segment, and the end of the shield segment is provided with There is a water-stop ring, the cross-section of the water-stop ring is L-shaped, and the two inner sides of the water-stop ring are respectively covered with the end of the shield segment and the inner side of the shield segment; The outer two sides of the water ring are provided with a pushing oil cylinder that can push the water sealing ring to the end of the shield segment and a pushing oil cylinder that can push the water sealing ring outward; the water sealing ring is provided with a plurality of grouting It is used for injecting polyurethane water stop and backfilling with double liquid slurry.

所述的止水圈由六块环形均布的止水条组成，相邻两根止水条之间通过连接头及螺栓连接。The water-stop ring is composed of six water-stop strips evenly distributed in a ring shape, and the two adjacent water-stop strips are connected by connecting heads and bolts.

在相邻两根止水条连接处设置有密封垫。A gasket is arranged at the connection of two adjacent water-stop strips.

在盾尾中间设置有连接器，所述的顶推油缸均安装于连接器上。A connector is arranged in the middle of the shield tail, and the pushing oil cylinders are all mounted on the connector.

所述的顶推油缸在连接器上辐射安装。The jacking oil cylinder is radially installed on the connector.

本发明在盾尾漏水时，能快速进行全环封堵，并对漏水处进行回填，确保不再漏水，具有结构简单、操作方便的优点，能有效提高盾构施工时的安全性，降低盾尾漏水造成的损失，有利于我国盾构施工技术的发展。When the shield tail leaks water, the invention can quickly perform full-ring sealing, and backfill the leaking place to ensure no more water leakage, has the advantages of simple structure and convenient operation, can effectively improve the safety during shield construction, and reduce the The loss caused by the leakage of tail water is beneficial to the development of shield construction technology in China.

附图说明Description of drawings

图1为本发明的结构示意图。FIG. 1 is a schematic structural diagram of the present invention.

图2为本发明止水圈的外侧结构示意图。FIG. 2 is a schematic diagram of the outer structure of the water stop ring of the present invention.

图3为本发明止水圈的内侧结构示意图。3 is a schematic diagram of the inner structure of the water stop ring of the present invention.

具体实施方式Detailed ways

如图1、图2、图3所示，本发明为一种盾构施工中的盾尾堵漏装置，它包括盾构机的盾尾1和盾构管片2，所述的盾构管片2的末端设置有止水圈3，该止水圈3截面呈L型，其内侧两面分别包覆于盾构管片2的末端及盾构管片2的内侧。在止水圈3的内侧两面设置有止水橡胶4，在止水圈3的外侧两面设有能将止水圈3推向盾构管片2末端的推进油缸5以及能将止水圈3向外顶推的顶推油缸6。所述的推进油缸5与盾尾2固定，能将止水圈3向盾构管片2末端推进。止水橡胶4受到挤压变形后会填充止水圈3与盾构管片2之间缝隙达到堵水的功能 。所述的止水圈3由六块环形均布的止水条3.1组成，相邻两根止水条3.1之间通过连接头3.2及螺栓3.3连接。所述的顶推油缸6在连接器8上辐射安装，将止水条3.1向外顶推，使止水条3.1内侧面与盾构管片2紧贴。与在相邻两根止水条3.1连接处设置有密封垫3.4，防止连接处漏水。As shown in Figure 1, Figure 2, Figure 3, the present invention is a shield tail leakage plugging device in shield construction, which includes a shield tail 1 of a shield machine and a shield segment 2. The shield tube The end of the sheet 2 is provided with a water stop ring 3 , the cross section of the water stop ring 3 is L-shaped, and its inner two sides are respectively wrapped around the end of the shield tunnel segment 2 and the inner side of the shield tunnel segment 2 . Water-stop rubber 4 is arranged on both inner sides of the water-stop ring 3 , and a propelling oil cylinder 5 that can push the water-stop ring 3 to the end of the shield pipe segment 2 and a pusher cylinder 5 that can push the water-stop ring 3 to the end of the shield pipe piece 2 and Push cylinder 6 that pushes outward. The propulsion cylinder 5 is fixed with the shield tail 2 and can push the water stop ring 3 to the end of the shield segment 2 . After the water-stop rubber 4 is squeezed and deformed, it will fill the gap between the water-stop ring 3 and the shield segment 2 to achieve the function of water blocking. The water-stop ring 3 is composed of six annular water-stop strips 3.1 evenly distributed, and two adjacent water-stop strips 3.1 are connected by connecting heads 3.2 and bolts 3.3. The pushing cylinder 6 is installed radially on the connector 8, and pushes the water stop strip 3.1 outward, so that the inner side of the water stop strip 3.1 is in close contact with the shield segment 2. A gasket 3.4 is arranged at the connection between the two adjacent water stop strips 3.1 to prevent water leakage at the connection.

所述的止水圈3上开设有多个注浆口7，在注浆口7可以注入聚氨酯，聚氨酯发泡后可以将泄漏点堵住。在泄漏点堵住后，开始向泄漏点方向注双液浆回填，即将水玻璃与氯化钙溶液交替注入盾尾1，两种溶液迅速反应生成硅胶和硅酸钙凝胶，起到胶结和填充孔隙的作用，使盾尾1的强度和承载能力提高。The water stop ring 3 is provided with a plurality of grouting ports 7, and polyurethane can be injected into the grouting ports 7, and the leakage point can be blocked after the polyurethane is foamed. After the leak point is blocked, start to inject double slurry backfill in the direction of the leak point, that is, water glass and calcium chloride solution are alternately injected into shield tail 1, and the two solutions react rapidly to form silica gel and calcium silicate gel, which acts as a cementation and The function of filling the pores improves the strength and bearing capacity of the shield tail 1 .

本发明在盾尾1漏水时，能快速进行全环封堵，并对漏水处进行回填，确保不再漏水，具有结构简单、操作方便的优点，能有效提高盾构施工时的安全性，降低盾尾1漏水造成的损失，有利于我国盾构施工技术的发展。When the shield tail 1 leaks water, the invention can quickly perform full-ring sealing, and backfill the leaking place to ensure that no water leaks anymore, has the advantages of simple structure and convenient operation, can effectively improve the safety during shield construction, and reduce The loss caused by the leakage of shield tail 1 is beneficial to the development of shield construction technology in China.

Claims (5)

1. A shield tail plugging device in shield construction comprises a shield tail (1) of a shield machine and a shield segment (2), and is characterized in that a water stop ring (3) is arranged at the tail end of the shield segment (2), the section of the water stop ring (3) is L-shaped, and two sides of the inner side of the water stop ring are respectively coated at the tail end of the shield segment (2) and the inner side of the shield segment (2); water-stopping rubber (4) is arranged on two sides of the inner side of the water-stopping ring (3), and a pushing oil cylinder (5) capable of pushing the water-stopping ring (3) to the tail end of the shield segment (2) and a pushing oil cylinder (6) capable of pushing the water-stopping ring (3) outwards are arranged on two sides of the outer side of the water-stopping ring (3); and a plurality of grouting ports (7) are formed in the water stop ring (3) and are used for injecting polyurethane water stop and injecting double-liquid slurry for backfilling.
2. The shield tail plugging device in shield construction according to claim 1, wherein the water stop ring (3) is composed of six annularly and uniformly distributed water stop strips (3.1), and two adjacent water stop strips (3.1) are connected through a connector (3.2) and a bolt (3.3).
3. The shield tail plugging device in shield construction according to claim 2, wherein a sealing gasket (3.4) is arranged at the joint of two adjacent water stop strips (3.1).
4. The shield tail plugging device in shield construction according to claim 1, 2 or 3, wherein a connector (8) is arranged in the middle of the shield tail (1), and the jacking cylinders (6) are all mounted on the connector (8).
5. The shield tail plugging device in shield construction according to claim 4, wherein the jacking cylinder (6) is installed on the connector (8) in a radiation manner.
CN201911326393.4A 2019-12-20 2019-12-20 Shield tail plugging device in shield construction Active CN111287758B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112228120A (en) * 2020-10-14 2021-01-15 中铁六局集团有限公司 Quick plugging device for water and sand gushing in complex environment of shield construction
CN115875041A (en) * 2022-10-26 2023-03-31 粤水电轨道交通建设有限公司 Shield tail water stopping method for shield tunneling machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4001949A1 (en) * 1990-01-24 1991-07-25 Putzmeister Maschf Pressure monitor for cement injection point behind tunnelling machine - by extrapolating from pressure differences measured at points along cement delivery pipe
CN102071950A (en) * 2010-11-24 2011-05-25 广东华隧建设股份有限公司 Method for protecting shield tail brush and preventing shield tail from seepage
CN105065008A (en) * 2015-07-30 2015-11-18 中国建筑第六工程局有限公司 Method for preventing sand gushing in shield tunneling construction
CN107387123A (en) * 2017-08-22 2017-11-24 中铁十局集团城市轨道工程有限公司 The construction method of pressure grouting leak stopping is carried out for shield duct piece piece Seepage
CN212508314U (en) * 2019-12-20 2021-02-09 中铁隧道股份有限公司 Shield tail plugging device in shield construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4001949A1 (en) * 1990-01-24 1991-07-25 Putzmeister Maschf Pressure monitor for cement injection point behind tunnelling machine - by extrapolating from pressure differences measured at points along cement delivery pipe
CN102071950A (en) * 2010-11-24 2011-05-25 广东华隧建设股份有限公司 Method for protecting shield tail brush and preventing shield tail from seepage
CN105065008A (en) * 2015-07-30 2015-11-18 中国建筑第六工程局有限公司 Method for preventing sand gushing in shield tunneling construction
CN107387123A (en) * 2017-08-22 2017-11-24 中铁十局集团城市轨道工程有限公司 The construction method of pressure grouting leak stopping is carried out for shield duct piece piece Seepage
CN212508314U (en) * 2019-12-20 2021-02-09 中铁隧道股份有限公司 Shield tail plugging device in shield construction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112228120A (en) * 2020-10-14 2021-01-15 中铁六局集团有限公司 Quick plugging device for water and sand gushing in complex environment of shield construction
CN112228120B (en) * 2020-10-14 2023-04-28 中铁六局集团有限公司 Quick plugging device for water and sand gushing in complex environment of shield construction
CN115875041A (en) * 2022-10-26 2023-03-31 粤水电轨道交通建设有限公司 Shield tail water stopping method for shield tunneling machine

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