CN114687338A - Connecting structure of underground diaphragm wall and construction method thereof - Google Patents

Connecting structure of underground diaphragm wall and construction method thereof Download PDF

Info

Publication number
CN114687338A
CN114687338A CN202210447041.XA CN202210447041A CN114687338A CN 114687338 A CN114687338 A CN 114687338A CN 202210447041 A CN202210447041 A CN 202210447041A CN 114687338 A CN114687338 A CN 114687338A
Authority
CN
China
Prior art keywords
water stop
connector
connecting piece
edge
connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210447041.XA
Other languages
Chinese (zh)
Inventor
李胜林
刘凌云
王雷
贾涛
张海丰
曹新海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CCCC Shanghai Third Harbor Engineering Science and Technology Research Institute Co Ltd
CCCC Shanghai Harbour Engineering Design and Research Institute Co Ltd
Original Assignee
CCCC Shanghai Third Harbor Engineering Science and Technology Research Institute Co Ltd
CCCC Shanghai Harbour Engineering Design and Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CCCC Shanghai Third Harbor Engineering Science and Technology Research Institute Co Ltd, CCCC Shanghai Harbour Engineering Design and Research Institute Co Ltd filed Critical CCCC Shanghai Third Harbor Engineering Science and Technology Research Institute Co Ltd
Priority to CN202210447041.XA priority Critical patent/CN114687338A/en
Publication of CN114687338A publication Critical patent/CN114687338A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18Bulkheads or similar walls made solely of concrete in situ
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/16Arrangement or construction of joints in foundation structures
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18Bulkheads or similar walls made solely of concrete in situ
    • E02D5/185Bulkheads or similar walls made solely of concrete in situ with flexible joint members between sections

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Abstract

The application discloses underground continuous wall's connection structure and construction method thereof, connection structure includes at least: the connector, the water stop, the connector and the edge sealing steel bar; the connector is connected with the water stop belt, and the connecting piece is connected with the water stop belt; the edge banding reinforcing steel bar is provided with a groove which is arranged corresponding to the connecting piece, and the groove is connected with the connecting piece; the water stop is made of flexible materials. The construction method is that the first wall panel is connected with the second adjacent wall panel based on the connecting structure to form the underground continuous wall. The connection of the first wall panel and the rear adjacent wall panel is realized through the sequentially connected connectors, water stop belts, connecting pieces and edge sealing steel bars; the water stop is made of flexible materials, can adapt to the differential deformation of joints and the contraction and creep deformation of concrete, avoids the seepage path generated by the differential deformation, and further plays a role in water prevention and water stop.

Description

一种地下连续墙的连接结构及其施工方法A connection structure of an underground continuous wall and its construction method

技术领域technical field

本申请属于地下连续墙技术领域,具体涉及一种地下连续墙的连接结构及施工方法。The application belongs to the technical field of underground continuous walls, and in particular relates to a connection structure and a construction method of an underground continuous wall.

背景技术Background technique

地下连续墙是通过成槽机械,借助护壁泥浆的作用,向地下钻挖具有一定长度、厚度和深度的沟槽,清槽后在槽内放置钢筋笼,并在槽内浇注混凝土等材料而筑成的一道地下连续墙体。它具有抵挡土体、防止渗水和承重的作用。地下连续墙技术具有震动小、噪声低、工效高、工期快等优点,对周围地基扰动小,其墙体刚度比较大,有利于在城市建设中应用。此外,地下连续墙的承载力大,能代替传统基础形式的连续墙体的功能。The underground diaphragm wall is constructed by drilling a groove with a certain length, thickness and depth into the ground by means of the groove forming machine and the action of the retaining wall mud. into an underground continuous wall. It has the functions of resisting soil, preventing water seepage and bearing load. The underground diaphragm wall technology has the advantages of small vibration, low noise, high work efficiency, and fast construction period. In addition, the bearing capacity of the underground diaphragm wall is large, which can replace the function of the diaphragm wall in the traditional foundation form.

在地下连续墙的施工过程中,连接头止水是最为关键的技术环节。现有技术中的连接头主要分为柔性连接头和刚性连接头。采用柔性连接头的地下连续墙并非真正的连续,其柔性连接头处无法传递弯矩、剪力等,受力后变形严重;采用刚性连接头的地下连续墙实现了真正意义上的连续,其刚性连接头处可以传递弯矩、剪力等,受力后变形较小,且施工方便。因此,刚性连接头在实际工程中被广泛采用。In the construction process of the underground diaphragm wall, the water stop of the joint is the most critical technical link. Connectors in the prior art are mainly divided into flexible connectors and rigid connectors. The underground diaphragm wall with flexible joints is not truly continuous, and the flexible joints cannot transmit bending moments, shear forces, etc., and the deformation is serious after being stressed; The rigid joint can transmit bending moment, shear force, etc., and the deformation is small after being stressed, and the construction is convenient. Therefore, rigid connectors are widely used in practical engineering.

但是,地下连续墙作为地下空间永久结构使用时,刚性连接头也存在如下问题:(1)由于受目前施工技术及工艺水平的限制,地下连续墙的刚性连接头,如:工字钢连接头,其在混泥土浇筑过程中易出现孔洞不密实导致的渗漏现象;(2)刚性连接头,如:工字钢连接头,由于泥浆绕流并附着于其表面,使后浇筑的混凝土与工字钢连接头之间夹有泥皮,受力后,泥皮脱开,并在水的压力作用下出现渗漏现象。由于差异变形,难以避免出现渗径导致的渗漏或潮湿现象。However, when the underground diaphragm wall is used as the permanent structure of the underground space, the rigid connector also has the following problems: (1) Due to the limitation of the current construction technology and technological level, the rigid connector of the underground diaphragm wall, such as: I-beam connector (2) Rigid joints, such as I-beam joints, because the mud flows around and adheres to its surface, the concrete poured after pouring is not close to the surface. The mud skin is sandwiched between the I-beam joints. After being stressed, the mud skin is detached, and leakage occurs under the pressure of water. Due to differential deformation, it is difficult to avoid leakage or moisture caused by seepage diameter.

对于墙幅接缝处的渗漏现象,现有技术通常采用搅拌桩、旋喷桩等封堵。这种处理方式仅能够应对临时性的大多数地下连续墙的挡土或隔水,难以适用于永久性的地下连续墙。For the leakage phenomenon at the joints of the wall, in the prior art, stirring piles, rotary jetting piles, etc. are usually used to block the leakage. This treatment method can only deal with the temporary earth retaining or water blocking of most underground diaphragm walls, and it is difficult to apply to permanent underground diaphragm walls.

因此,亟需提供一种能够作为永久性的地下连续墙的连接结构。Therefore, there is an urgent need to provide a connecting structure that can be used as a permanent underground diaphragm wall.

发明内容SUMMARY OF THE INVENTION

针对上述现有技术的缺点或不足,本申请要解决的技术问题是提供一种地下连续墙的连接结构及施工方法。In view of the above-mentioned shortcomings or deficiencies of the prior art, the technical problem to be solved by the present application is to provide a connection structure and a construction method for an underground continuous wall.

为解决上述技术问题,本申请通过以下技术方案来实现:In order to solve the above-mentioned technical problems, the application realizes through the following technical solutions:

本申请提出了一种地下连续墙的连接结构,至少包括:连接头、止水带、连接件和封边钢筋;所述连接头与所述止水带连接,所述连接件与所述止水带连接;所述封边钢筋设有与所述连接件对应设置的凹槽,所述凹槽与所述连接件连接;所述止水带采用柔性材料制成。The present application proposes a connection structure for an underground continuous wall, which at least includes: a connecting head, a water stop, a connecting piece and an edge-sealing steel bar; the connecting head is connected with the water stop, and the connecting piece is connected with the stop The water belt is connected; the edge-sealing steel bar is provided with a groove corresponding to the connecting piece, and the groove is connected with the connecting piece; the water stop belt is made of flexible material.

进一步地,上述的地下连续墙的连接结构,其中,所述连接头至少包括:腹板和两块翼缘,两块所述翼缘相对设置并由所述腹板连接;所述封边钢筋设置于所述腹板的一侧,且所述封边钢筋的两端部分别与两块所述翼缘连接。Further, in the connection structure of the above-mentioned underground continuous wall, wherein the connecting head at least comprises: a web and two flanges, the two flanges are arranged opposite to each other and are connected by the web; the edge-sealing steel bars It is arranged on one side of the web, and the two ends of the edge-sealing reinforcement are respectively connected with the two flanges.

进一步地,上述的地下连续墙的连接结构,其中,所述腹板以所述翼缘的中心线为界,偏离设有所述封边钢筋的一侧设置。Further, in the connection structure of the above-mentioned underground continuous wall, wherein the web is bounded by the center line of the flange, and is arranged deviating from the side where the edge-sealing reinforcement is provided.

进一步地,上述的地下连续墙的连接结构,其中,还包括:灌浆清洗管,所述灌浆清洗管设置于所述连接头与所述止水带之间。Further, the connection structure of the above-mentioned underground diaphragm wall further comprises: a grouting cleaning pipe, and the grouting cleaning pipe is arranged between the connecting head and the water stop belt.

进一步地,上述的地下连续墙的连接结构,其中,所述连接头上还设有导槽,所述止水带与所述导槽可拆卸连接。Further, in the connection structure of the above-mentioned underground continuous wall, a guide groove is further provided on the connecting head, and the water stop belt is detachably connected with the guide groove.

进一步地,上述的地下连续墙的连接结构,其中,所述止水带还设有加强筋,所述加强筋设置于所述止水带与所述连接头的连接侧。Further, in the connection structure of the above-mentioned underground continuous wall, the water stop is further provided with a reinforcing rib, and the reinforcing rib is arranged on the connection side of the water stop and the connecting head.

进一步地,上述的地下连续墙的连接结构,其中,所述止水带的端部设有斜面结构。Further, in the connection structure of the above-mentioned underground continuous wall, the end portion of the water stop is provided with an inclined surface structure.

进一步地,上述的地下连续墙的连接结构,其中,所述连接件包括:折弯结构。Further, in the above-mentioned connecting structure of an underground continuous wall, the connecting member includes a bending structure.

进一步地,上述的地下连续墙的连接结构,其中,所述连接件的表面设有镀层结构。Further, in the connection structure of the above-mentioned underground continuous wall, the surface of the connection piece is provided with a coating structure.

本申请还提出了一种基于上述连接结构的施工方法,包括如下步骤:The application also proposes a construction method based on the above-mentioned connection structure, comprising the following steps:

S1:带有连接头的先行墙幅位于待施工沟槽内,将灌浆清洗管设置于该待施工沟槽内;S1: The leading wall panel with the connector is located in the trench to be constructed, and the grouting cleaning pipe is arranged in the trench to be constructed;

S2:封边钢筋与钢筋笼连接;S2: The edge banding steel bar is connected to the steel bar cage;

S3:带有止水带的连接件与所述封边钢筋连接;S3: The connecting piece with the waterstop is connected to the edge-sealing steel bar;

S4:吊装连接好的所述止水带、所述连接件、所述封边钢筋及所述钢筋笼,将所述止水带与所述连接头连接;S4: hoisting and connecting the waterstop, the connector, the edge-sealing steel bar and the reinforcing cage, and connect the waterstop to the connector;

S5:所述灌浆清洗管通过高压水对所述连接头、所述止水带及所述连接件的表面进行清洗;S5: the grouting cleaning pipe uses high-pressure water to clean the surface of the connector, the water stop and the connector;

S6:对所述封边钢筋及所述钢筋笼进行浇筑作业;S6: pouring the edge-sealing reinforcement and the reinforcement cage;

S7:所述灌浆清洗管通过压浆机进行注浆作业。S7: The grouting cleaning pipe is grouted by a grouting machine.

与现有技术相比,本申请具有如下技术效果:Compared with the prior art, the present application has the following technical effects:

本申请通过依次连接的连接头、止水带、连接件及封边钢筋,实现先行墙幅与后邻墙幅连接;止水带采用柔性材料制成,能够适应连接处的差异变形,混凝土收缩、徐变变形,避免由于差异变形产生的渗径,进而起到防水、止水的作用。The present application realizes the connection between the leading wall panel and the rear adjacent wall panel by connecting the connecting head, the water stop belt, the connecting piece and the edge-sealing reinforcement in sequence; , Creep deformation, avoid the seepage diameter caused by differential deformation, and then play the role of waterproof and water stop.

附图说明Description of drawings

通过阅读参照以下附图所作的对非限制性实施例所作的详细描述,本申请的其它特征、目的和优点将会变得更明显:Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

图1:本申请一实施例连接结构应用中的横剖面示意图;Figure 1: a schematic cross-sectional view of an embodiment of the present application in the application of the connection structure;

图2:本申请一实施例中连接头与封边钢筋连接的示意图;Figure 2: a schematic diagram of the connection between the connector and the edge-sealing steel bar in an embodiment of the present application;

图3:本申请一实施例中止水带与连接件连接的横剖面示意图;Figure 3: a schematic cross-sectional view of the connection between the waterstop and the connector in an embodiment of the present application;

图4:本申请一实施例中止水带与连接件连接的局部示意图;Figure 4: A partial schematic diagram of the connection between the waterstop and the connector in an embodiment of the present application;

图5:如图4所示结构的A-A剖面图;Figure 5: A-A sectional view of the structure shown in Figure 4;

图6:本申请一实施例中止水带与连接件连接的局部示意图;Figure 6: A partial schematic diagram of the connection between the waterstop and the connector in an embodiment of the present application;

图7:如图6所示结构的B-B剖面图;Figure 7: B-B sectional view of the structure shown in Figure 6;

图8:本申请一实施例中连接头与灌浆清洗管的示意图;Figure 8: A schematic diagram of a connector and a grouting cleaning pipe in an embodiment of the present application;

图中:连接头1、腹板101、翼缘102、导槽103、止水带2、加强筋201、斜面结构202、预留孔203、连接件3、封边钢筋4、凹槽401、灌浆清洗管5、钢筋笼6、先行墙幅7、后邻墙幅8、迎土侧9及背土侧10。In the figure: connector 1, web 101, flange 102, guide groove 103, water stop 2, reinforcing rib 201, inclined surface structure 202, reserved hole 203, connector 3, edge-sealing steel bar 4, groove 401, The grouting cleaning pipe 5, the reinforcement cage 6, the leading wall width 7, the rear adjacent wall width 8, the soil facing side 9 and the back soil side 10.

具体实施方式Detailed ways

下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

如图1所示,本申请的其中一个实施例,一种地下连续墙的连接结构,至少包括:连接头1、止水带2、连接件3和封边钢筋4;所述连接头1与所述止水带2连接,所述连接件3与所述止水带2连接;所述封边钢筋4设有与所述连接件3对应设置的凹槽401,所述凹槽401与所述连接件3连接;所述止水带2采用柔性材料制成。As shown in FIG. 1, one of the embodiments of the present application, a connection structure of an underground diaphragm wall, at least includes: a connecting head 1, a water stop 2, a connecting piece 3 and an edge-sealing steel bar 4; the connecting head 1 and the The water stop belt 2 is connected, and the connecting piece 3 is connected with the water stop belt 2; The connecting piece 3 is connected; the water stop belt 2 is made of flexible material.

在本实施例中,止水带2的第一侧与连接头1连接,止水带2的第二侧与连接件3连接,其中第一侧与第二侧相对设置。封边钢筋4设有与连接件3对应设置的凹槽401,连接件3通过该凹槽401与封边钢筋4连接。具体地,可采用焊接的方式将连接件3与封边钢筋4连接,或者,连接件3上设有通孔,连接件3插入封边钢筋4的凹槽401后,通过卡扣或钢丝穿过通孔,将连接件3与封边钢筋4绑扎在一起,以实现二者连接。地下连续墙的先行墙幅7与后邻墙幅8通过连接头1、止水带2、连接件3及封边钢筋4连接,止水带2采用柔性材料制成,利用柔性材料的自身特性,能够适应先行墙幅7与后邻墙幅8连接处的差异变形,混凝土收缩、徐变变形,避免由于差异变形产生的渗径,进而起到防水、止水的作用。In this embodiment, the first side of the waterstop 2 is connected to the connecting head 1 , and the second side of the waterstop 2 is connected to the connecting piece 3 , wherein the first side and the second side are arranged opposite to each other. The edge-sealing steel bar 4 is provided with a groove 401 corresponding to the connecting piece 3 , and the connecting piece 3 is connected to the edge-sealing steel bar 4 through the groove 401 . Specifically, the connecting piece 3 can be connected to the edge-sealing steel bar 4 by welding, or, the connecting piece 3 is provided with a through hole, and after the connecting piece 3 is inserted into the groove 401 of the edge-sealing steel bar 4, the connecting piece 3 is inserted through a buckle or a steel wire Through the through hole, the connecting piece 3 and the edge-sealing steel bar 4 are bound together to realize the connection between the two. The leading wall 7 of the underground diaphragm wall is connected with the rear adjacent wall 8 through the connecting head 1, the water stop 2, the connecting piece 3 and the edge-sealing steel bar 4. The water stop 2 is made of flexible material, and the own characteristics of the flexible material are used. , which can adapt to the differential deformation of the connection between the leading wall 7 and the rear adjacent wall 8, and the concrete shrinks and creeps to avoid the seepage caused by the differential deformation, thereby playing the role of waterproof and water-stop.

可选地,所述止水带2采用橡胶材料制成,本领域技术人员有动机采用其他高分子材料。Optionally, the water stop 2 is made of rubber material, and those skilled in the art have the motivation to use other polymer materials.

具体地,所述连接头1至少包括:腹板101和两块翼缘102,两块所述翼缘102相对设置并由所述腹板101连接;所述封边钢筋4设置于所述腹板101的一侧,且所述封边钢筋4的两端部分别与两块所述翼缘102连接。Specifically, the connector 1 at least includes: a web 101 and two flanges 102, the two flanges 102 are arranged opposite to each other and are connected by the web 101; the edge-sealing reinforcement 4 is arranged on the web One side of the plate 101 , and the two ends of the edge-sealing steel bar 4 are respectively connected with the two flanges 102 .

在本实施例中,两块翼缘102相对设置并由腹板101连接;腹板101的一侧与先行墙幅7连接,腹板101的另一侧被封边钢筋4插入,封边钢筋4与翼缘102搭接连接,从而达到传递弯矩、剪力的目的,如图2所示。当然,本领域技术人员有动机采用其他结构的连接头1,如横剖面为十字形结构的连接头1。In this embodiment, the two flanges 102 are arranged opposite to each other and are connected by the web 101; one side of the web 101 is connected with the preceding wall panel 7, and the other side of the web 101 is inserted by the edge-sealing steel bar 4, and the edge-sealing steel bar is inserted. 4 is lapped and connected with the flange 102, so as to achieve the purpose of transmitting bending moment and shear force, as shown in FIG. 2 . Of course, those skilled in the art are motivated to use the connecting head 1 of other structures, such as the connecting head 1 having a cross-shaped structure in cross section.

具体地,所述腹板101以所述翼缘102的中心线为界,偏离设有所述封边钢筋4的一侧设置。通过将连接头1设置为非对称结构,有利于翼缘102之间的空间利用,减少先行墙幅7不必要的浪费。Specifically, the web 101 is bounded by the center line of the flange 102, and is provided away from the side where the edge-sealing steel bar 4 is provided. By setting the connecting head 1 as an asymmetric structure, it is beneficial to the space utilization between the flanges 102 and the unnecessary waste of the leading wall panel 7 is reduced.

如图3所示,所述止水带2还设有加强筋201,所述加强筋201设置于所述止水带2与所述连接头1的连接侧。As shown in FIG. 3 , the waterstop 2 is further provided with a reinforcing rib 201 , and the reinforcing rib 201 is arranged on the connection side of the waterstop 2 and the connecting head 1 .

在本实施例中,所述加强筋201采用钢棒,将钢棒设置于止水带2的第一侧内,以避免因采用柔性材料导致止水带2与连接头1的连接处形变。In this embodiment, the reinforcing rib 201 is made of steel rods, and the steel rods are arranged in the first side of the waterstop 2 to avoid deformation of the connection between the waterstop 2 and the connector 1 due to the use of flexible materials.

具体地,所述连接头1上还设有导槽103,所述止水带2与所述导槽103可拆卸连接。通过设置导槽103以便于止水带2与连接头1快速连接,也为止水带2提供保护作用。Specifically, the connecting head 1 is further provided with a guide groove 103 , and the water stop band 2 is detachably connected to the guide groove 103 . By arranging the guide groove 103 to facilitate the quick connection of the waterstop 2 with the connector 1 , the waterstop 2 also provides protection.

在本实施例中,通过设置两个剖面为L字形的钢板,将二者相对设置于连接头1上,与连接头1的侧壁一起形成一半开放式的导槽103;止水带2的第一侧插入导槽103内,实现与连接头1的可拆卸连接;本实施例中的止水带2第一侧的剖面设置为方形,本领域技术人员有动机将其设置为三角形、圆形或长方形等。In this embodiment, two steel plates with an L-shaped cross-section are arranged, and the two are oppositely arranged on the connecting head 1 to form a semi-open guide groove 103 together with the side wall of the connecting head 1; The first side is inserted into the guide groove 103 to realize the detachable connection with the connector 1; shape or rectangle etc.

如图3至图7所示,所述止水带2的端部设有斜面结构202。As shown in FIG. 3 to FIG. 7 , the end portion of the water stop 2 is provided with an inclined surface structure 202 .

在本实施例中,止水带2的第二侧的端部设有沿止水带2横剖面中心线对称设置的斜面结构202,如图2所示,将连接件3设置于两个斜面结构202之间,使止水带2与连接件3的连接处平滑过渡,避免应力集中。在本实施例中,止水带2的第三侧的端面也设有斜面结构202,如图3至图6所示,由于在实际施工过程中,止水带2及连接件3的总长度根据实际情况设定,为了便于运输及施工等,止水带2及连接件3采用成段连接的方式,止水带2的第三侧,即两相邻段止水带2搭接的部位为对合设置的斜面结构202,从而保证止水带2搭接处的厚度不增加,同时加大了连接面积,确保连接的可靠性。两相邻段止水带2的第一侧内的钢棒也为分段设置,上段止水带2的第一侧内留有与下段止水带2的钢棒连接的预留孔203,下段钢棒表面及搭接处的斜面结构202均涂有粘结剂,将下段钢棒插入预留孔203内,粘结剂将两相邻段止水带2粘合,完成连接。两段连接件3的搭接面则通过焊接连接。In the present embodiment, the end of the second side of the water stop 2 is provided with an inclined surface structure 202 symmetrically arranged along the center line of the cross section of the water stop 2. As shown in FIG. 2, the connector 3 is arranged on two inclined surfaces. Between the structures 202, a smooth transition is made at the connection between the water stop 2 and the connecting piece 3 to avoid stress concentration. In this embodiment, the end face of the third side of the water stop 2 is also provided with a slope structure 202, as shown in Figs. According to the actual situation, in order to facilitate transportation and construction, the waterstop 2 and the connector 3 are connected in sections. The third side of the waterstop 2 is the part where two adjacent sections of the waterstop 2 overlap. The inclined surface structure 202 is arranged to match, so as to ensure that the thickness of the overlapped portion of the water stop belt 2 does not increase, and at the same time, the connection area is enlarged to ensure the reliability of the connection. The steel bars in the first sides of the two adjacent waterstops 2 are also arranged in sections, and there are reserved holes 203 connected with the steel bars of the lower waterstops 2 in the first side of the upper waterstop 2. The surface of the lower steel bar and the inclined surface structure 202 at the lap joint are coated with adhesive, the lower steel bar is inserted into the reserved hole 203, and the adhesive bonds the two adjacent waterstops 2 to complete the connection. The overlapping surfaces of the two connecting pieces 3 are connected by welding.

具体地,所述连接件3包括但不限于折弯结构。通过折弯结构的设置,提供了一定的形变空间,降低了施工精度要求。Specifically, the connector 3 includes, but is not limited to, a bending structure. Through the setting of the bending structure, a certain deformation space is provided, and the construction accuracy requirements are reduced.

可选地,所述连接件3采用刚性材料制成。用刚性材料制成的连接件3在与止水带2的第二侧连接后,能够为止水带2的第二侧提供刚度。Optionally, the connecting piece 3 is made of rigid material. The connecting piece 3 made of rigid material can provide rigidity to the second side of the waterstop 2 after being connected to the second side of the waterstop 2 .

可选地,所述连接件3外设有镀层结构,以防止连接件3被腐蚀。Optionally, the connector 3 is provided with a plating structure outside to prevent the connector 3 from being corroded.

在本实施例中,连接件3采用镀锌压型钢板,一侧与止水带2的第二侧连接,另一侧与封边钢筋4的凹槽401焊接,当然,也可通过在连接件3上设置通孔,利用卡扣或钢丝将连接件3与封边钢筋4绑扎在一起。In this embodiment, the connecting member 3 is made of galvanized profiled steel plate, one side is connected with the second side of the water stop 2, and the other side is welded with the groove 401 of the edge-sealing steel bar 4. Of course, it can also be connected by A through hole is provided on the piece 3, and the connecting piece 3 and the edge-sealing steel bar 4 are bound together by means of a buckle or a steel wire.

如图1和图8所示,还包括:灌浆清洗管5,所述灌浆清洗管5设置于所述连接头1与所述止水带2之间。As shown in FIG. 1 and FIG. 8 , it further includes: a grouting cleaning pipe 5 , and the grouting cleaning pipe 5 is arranged between the connecting head 1 and the water stop belt 2 .

在本实施例中,将灌浆清洗管5的数量设置为三个,本领域技术人员有动机对其数量进行适应性的增减设置。具体地,三个灌浆清洗管5均设置于腹板101设有止水带2的一侧,其中两个灌浆清洗管5分别设置于两个翼缘102与腹板101的交接处,另外一个灌浆清洗管5设置于导槽103内。通过上述设置,三个灌浆清洗管5能够避免连接头1、导槽103、止水带2及连接件3在施工过程中沾上泥皮;同时也能完成注浆作业,使导槽103与止水带2之间填充密实,连接头1处混泥土浇筑不密部位填补充盈,从而达到防渗的目的。In this embodiment, the number of grouting cleaning pipes 5 is set to three, and those skilled in the art have the motivation to adjust the number of grouting cleaning pipes 5 to increase or decrease adaptively. Specifically, the three grouting cleaning pipes 5 are all arranged on the side of the web 101 where the waterstop 2 is provided, wherein the two grouting cleaning pipes 5 are respectively arranged at the junctions of the two flanges 102 and the web 101 , and the other one is The grouting cleaning pipe 5 is arranged in the guide groove 103 . Through the above arrangement, the three grouting cleaning pipes 5 can prevent the connecting head 1, the guide groove 103, the water stop belt 2 and the connecting piece 3 from being stained with mud during the construction process; at the same time, the grouting operation can be completed, so that the guide groove 103 and The waterstops 2 are filled densely, and the non-dense parts of the concrete pouring at the joint 1 are filled with supplements, so as to achieve the purpose of anti-seepage.

如图8所示,三个灌浆清洗管5的顶端分别高出连接头1有20~30cm,底端也较连接头1高50~55cm。通过上述设置,以便于施工过程中,灌浆清洗管5外接压浆机或者高压水泵。As shown in FIG. 8 , the tops of the three grouting cleaning pipes 5 are respectively 20-30 cm higher than the connector 1 , and the bottom ends are also 50-55 cm higher than the connector 1 . Through the above arrangement, it is convenient for the grouting cleaning pipe 5 to be connected to a grouting machine or a high-pressure water pump during the construction process.

本申请另一方面还提出了一种基于上述连接结构的施工方法,在本实施例中,止水带2与连接件3已在工厂连接好,具体施工步骤如下:On the other hand, the present application also proposes a construction method based on the above-mentioned connection structure. In this embodiment, the waterstop 2 and the connector 3 have been connected in the factory, and the specific construction steps are as follows:

S1:带有连接头1的先行墙幅7位于待施工沟槽内,其中,连接头1的一个翼缘102与迎土侧9相抵,另一个翼缘102与背土侧10相抵;将灌浆清洗管5设置于待施工沟槽内;S1: The leading wall panel 7 with the connecting head 1 is located in the trench to be constructed, wherein one flange 102 of the connecting head 1 is in contact with the soil-facing side 9, and the other flange 102 is in contact with the back soil side 10; the grouting The cleaning pipe 5 is arranged in the trench to be constructed;

S2:封边钢筋4与钢筋笼6焊接;S2: Welding the edge banding steel bar 4 and the steel bar cage 6;

S3:连接件3与封边钢筋4的凹槽401通过焊接相连,或者,在连接件3上设置通孔并通过卡扣或钢丝与封边钢筋4连接;S3: The connecting piece 3 is connected to the groove 401 of the edge-sealing steel bar 4 by welding, or, a through hole is provided on the connecting piece 3 and is connected to the edge-sealing steel bar 4 through a buckle or a steel wire;

S4:根据实际施工环境,搭接止水带2及连接件3,使止水带2和连接件3的总长度满足实际需求;S4: According to the actual construction environment, overlap the waterstop 2 and the connecting piece 3, so that the total length of the waterstop 2 and the connecting piece 3 meets the actual needs;

S4:将连接好的止水带2、连接件3、封边钢筋4及钢筋笼6吊装就位,止水带2与连接头1上的导槽103连接;S4: Hoist the connected waterstop 2, connector 3, edge-sealing steel bar 4 and steel cage 6 in place, and connect the waterstop 2 to the guide groove 103 on the connector 1;

S5:灌浆清洗管5通过高压水对连接头1、止水带2及连接件3的表面进行清洗;S5: The grouting cleaning pipe 5 cleans the surfaces of the connecting head 1, the water stop belt 2 and the connecting piece 3 through high-pressure water;

S6:对封边钢筋4及钢筋笼6进行浇筑作业,形成初步的后邻墙幅8;S6: pouring the edge-sealing reinforcement bars 4 and reinforcement cages 6 to form a preliminary rear adjacent wall width 8;

S7:灌浆清洗管5通过压浆机进行注浆作业,使浇筑不密实部位充盈。S7: The grouting cleaning pipe 5 is grouted by the grouting machine, so that the pouring is not compacted.

重复上述步骤S1至S7直至完成全部地下连续墙作业。Repeat the above steps S1 to S7 until all underground diaphragm wall operations are completed.

在本申请的描述中,除非另有明确的规定和限定,术语“相连”、“连接”、“固定”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。In the description of this application, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

在本申请中,除非另有明确的规定和限定,第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触,也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且,第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方,或仅仅表示第一特征水平高度小于第二特征。In this application, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

在本实施例的描述中,术语“上”、“下”、“左”、“右”、等方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述和简化操作,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。此外,术语“第一”、“第二”仅仅用于在描述上加以区分,并没有特殊的含义。In the description of this embodiment, the terms “upper”, “lower”, “left”, “right”, etc. are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplified operation , rather than indicating or implying that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation on the present application. In addition, the terms "first" and "second" are only used for distinction in description, and have no special meaning.

以上实施例仅用以说明本申请的技术方案而非限定,参照较佳实施例对本申请进行了详细说明。本领域的普通技术人员应当理解,可以对本申请的技术方案进行修改或等同替换,而不脱离本申请技术方案的精神和范围,均应涵盖在本申请的权利要求范围内。The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. The present application is described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that the technical solutions of the present application may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application, and should be covered within the scope of the claims of the present application.

Claims (10)

1. A connecting structure of underground diaphragm walls, characterized by comprising at least: the connector, the water stop, the connector and the edge sealing steel bar; the connector is connected with the water stop belt, and the connecting piece is connected with the water stop belt; the edge banding reinforcing steel bar is provided with a groove which is arranged corresponding to the connecting piece, and the groove is connected with the connecting piece; the water stop is made of flexible materials.
2. A connecting structure of underground continuous walls according to claim 1, wherein the connection head comprises at least: the flange plate comprises a web plate and two flange edges, wherein the two flange edges are oppositely arranged and are connected by the web plate; the edge banding reinforcing bar set up in one side of web, just the both ends of edge banding reinforcing bar respectively with two the edge of a wing is connected.
3. A connection structure of underground continuous walls according to claim 2, wherein the web is located at a position offset from a side where the edge-sealing reinforcing bars are located, with respect to a center line of the flanges.
4. A connecting structure of underground continuous walls according to any one of claims 1 to 3, further comprising: grouting cleaning pipe, grouting cleaning pipe set up in the connector with between the waterstop.
5. A connection structure of underground continuous walls according to any one of claims 1 to 3, wherein the connection head is further provided with a guide groove, and the water stop is detachably connected with the guide groove.
6. A connection structure of an underground continuous wall according to any one of claims 1 to 3, wherein the water stop is further provided with a reinforcing rib, and the reinforcing rib is provided at a connection side of the water stop and the connection head.
7. A connecting structure of underground continuous walls according to any one of claims 1 to 3, wherein the ends of the water stop strips are provided with a slope structure.
8. A connecting structure of underground continuous walls according to any one of claims 1 to 3, wherein the connecting member comprises: and (5) a bending structure.
9. A connection structure of underground continuous walls according to any one of claims 1 to 3, wherein the surface of the connection member is provided with a plating structure.
10. A construction method based on the connection structure of any one of the preceding claims, characterized by comprising the steps of:
s1: the front wall with the connector is positioned in the groove to be constructed, and the grouting cleaning pipe is arranged in the groove to be constructed;
s2: the edge banding reinforcing steel bars are connected with the reinforcing cage;
s3: the water stop belt with the connecting piece is connected with the edge banding reinforcing steel bar;
s4: hoisting the connected water stop, the connecting piece, the edge banding reinforcing steel bars and the reinforcing cage, and connecting the water stop with the connector;
s5: the grouting cleaning pipe cleans the surfaces of the connector, the water stop and the connecting piece through high-pressure water;
s6: pouring the edge-sealing steel bars and the steel reinforcement cage;
s7: and the grouting cleaning pipe performs grouting operation through a grouting machine.
CN202210447041.XA 2022-04-26 2022-04-26 Connecting structure of underground diaphragm wall and construction method thereof Pending CN114687338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210447041.XA CN114687338A (en) 2022-04-26 2022-04-26 Connecting structure of underground diaphragm wall and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210447041.XA CN114687338A (en) 2022-04-26 2022-04-26 Connecting structure of underground diaphragm wall and construction method thereof

Publications (1)

Publication Number Publication Date
CN114687338A true CN114687338A (en) 2022-07-01

Family

ID=82145135

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210447041.XA Pending CN114687338A (en) 2022-04-26 2022-04-26 Connecting structure of underground diaphragm wall and construction method thereof

Country Status (1)

Country Link
CN (1) CN114687338A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115852974A (en) * 2022-11-17 2023-03-28 上海建工集团股份有限公司 Deformation control method for underground diaphragm wall

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006233632A (en) * 2005-02-25 2006-09-07 Seibu Polymer Corp Flexible waterproof joint and its construction method
CN102535519A (en) * 2012-03-20 2012-07-04 广州中煤江南基础工程公司 I-shaped steel joint structure for underground continuous wall and construction method for I-shaped steel joint structure
CN204662514U (en) * 2015-05-28 2015-09-23 上海远方基础工程有限公司 A kind of joint first opening cage of reinforcement of diaphragm wall
CN107687166A (en) * 2017-10-18 2018-02-13 太原理工大学 Diaphram wall is anti-to stream, water-impervious I-shaped steel joint structure and construction method
CN107700472A (en) * 2017-11-21 2018-02-16 上海市机械施工集团有限公司 The hydraulic ejection rubber water-proof joint case and its release method of construction of diaphragm wall
CN111636412A (en) * 2020-06-15 2020-09-08 上海隧道工程有限公司 Connection structure of underground diaphragm wall joint and its construction method
CN113373905A (en) * 2021-05-04 2021-09-10 中铁上海工程局集团有限公司 Underground continuous wall reinforcement cage joint seepage-proofing structure and construction method thereof
CN217517544U (en) * 2022-04-26 2022-09-30 中交上海港湾工程设计研究院有限公司 Connection structure of underground continuous wall

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006233632A (en) * 2005-02-25 2006-09-07 Seibu Polymer Corp Flexible waterproof joint and its construction method
CN102535519A (en) * 2012-03-20 2012-07-04 广州中煤江南基础工程公司 I-shaped steel joint structure for underground continuous wall and construction method for I-shaped steel joint structure
CN204662514U (en) * 2015-05-28 2015-09-23 上海远方基础工程有限公司 A kind of joint first opening cage of reinforcement of diaphragm wall
CN107687166A (en) * 2017-10-18 2018-02-13 太原理工大学 Diaphram wall is anti-to stream, water-impervious I-shaped steel joint structure and construction method
CN107700472A (en) * 2017-11-21 2018-02-16 上海市机械施工集团有限公司 The hydraulic ejection rubber water-proof joint case and its release method of construction of diaphragm wall
CN111636412A (en) * 2020-06-15 2020-09-08 上海隧道工程有限公司 Connection structure of underground diaphragm wall joint and its construction method
CN113373905A (en) * 2021-05-04 2021-09-10 中铁上海工程局集团有限公司 Underground continuous wall reinforcement cage joint seepage-proofing structure and construction method thereof
CN217517544U (en) * 2022-04-26 2022-09-30 中交上海港湾工程设计研究院有限公司 Connection structure of underground continuous wall

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
毕湘利: "《上海地铁建造新技术应用与实践》", 30 September 2020, 中国铁道出版社, pages: 12 - 13 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115852974A (en) * 2022-11-17 2023-03-28 上海建工集团股份有限公司 Deformation control method for underground diaphragm wall

Similar Documents

Publication Publication Date Title
CN110029599B (en) Prefabricated culvert steel connection structure and construction method
CN109750660A (en) Underground continuous wall with anti-seepage joint and construction method thereof
CN102472032B (en) Combined steel sheet piling wall
CN108239984A (en) The assembled building enclosure and its construction method that terraced corrugated sheet steel is combined with steel truss
CN105350521A (en) Vertical splicing structure and method of prefabricated underground diaphragm walls
CN114687338A (en) Connecting structure of underground diaphragm wall and construction method thereof
CN217517544U (en) Connection structure of underground continuous wall
CN110725595A (en) Pool wall prefabricated block splicing structure and construction method suitable for hydrostatically assembled pools
CN110593320A (en) A pre-closed structure and construction method of post-pouring belt on exterior wall
CN114060042A (en) Binding structure of concrete pipe section and its construction method
CN206486875U (en) a stereotyped channel
CN211472517U (en) Advanced water stop structure between piles
CN209836999U (en) Diaphragm wall with impermeable joints
CN213682117U (en) Post-grouting device for male-female half-width gap of underground diaphragm wall Z-shaped wall width
CN211849399U (en) Water stop joint of precast sheet pile
JP7481306B2 (en) Concrete wall, its manufacturing method, and its construction method
CN213267910U (en) Ultra-deep foundation pit enclosure water stop structure
CN212248382U (en) Underground continuous wall seam water stopping device
CN212801593U (en) Locking notch structure of steel pipe pile cofferdam
CN211395769U (en) Sewage treatment pond cell body movement joint stagnant water structure
CN115852939A (en) Underground continuous wall lap joint and construction method
CN217758717U (en) Prefabricated underground wall board and prefabricated underground wall
CN106638678A (en) Underground structure lining wall and underground continuous wall overlapped surface structure and construction method thereof
CN220394556U (en) A steel sheet pile support system
CN214939933U (en) Agricultural hydraulic engineering prefabricated construction

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination