Mortise and tenon joint type anti-floating structure node of subway station

Abstract

The utility model discloses a subway station tenon-and-mortise type anti-floating structure node which comprises an enclosure tenon-and-mortise assembly and a main body tenon-and-mortise assembly, the enclosure tenon-and-mortise assembly comprises an enclosure structure, the top end of the enclosure structure is provided with a top beam, the main body tenon-and-mortise assembly comprises a main body structure side wall, one side of the main body structure side wall is provided with a connecting strip, and the other side of the main body structure side wall is provided with a top beam. A first connecting groove and a second connecting groove are respectively formed in one side of the enclosure structure and one side of the top beam; by utilizing the design of the enclosure tenon-and-mortise assembly, the main body tenon-and-mortise assembly and the waterproof isolation layer and improving the side wall of the traditional enclosure structure and the main body structure, the structural node has the conventional vertical supporting and anti-floating functions, and meanwhile, the connecting strip is connected with the first connecting groove and the second connecting groove in a penetrating manner, so that the anti-floating function is realized under the action of the waterproof isolation layer. The construction cold seam between the subway station enclosure structure and the side wall of the main body structure is canceled, water leakage of the underground structure is avoided, and the waterproof performance of cover and excavation top-down underground engineering can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of underground engineering, in particular to a mortise and tenon type anti-floating structure node of a subway station. Background Art

[0002] At present, the commonly used forms of foundation pit retaining and water-stopping curtains for subway stations include pile rows, interlocking piles, underground continuous walls, etc. These foundation pit retaining and water-stopping curtains are usually used as permanent anti-floating structures. However, this method will result in the need to set up construction cold joints between the retaining structure and the structure of the subway station. The construction cold joints will further cause water leakage in the underground structure, affecting the waterproof performance of the underground project. Utility Model Content

[0003] The utility model aims to provide a mortise and tenon type anti-floating structure node of a subway station to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mortise and tenon type anti-floating structure node of a subway station, comprising a protective mortise and tenon assembly and a main body mortise and tenon assembly, the protective mortise and tenon assembly comprising a protective structure, a top crown beam for pile foundation connection is arranged at the top of the protective structure, the main body mortise and tenon assembly comprises a main body structure side wall, a connecting strip for mortise and tenon connection with the protective structure is arranged on one side of the main body structure side wall, a first connecting groove and a second connecting groove for inserting the connecting strip are respectively provided on one side of the protective structure and the top crown beam.

[0005] Preferably, a waterproof isolation layer for waterproofing is respectively provided on one side of the inner wall of the first connecting groove and the second connecting groove.

[0006] Preferably, the top end of the enclosure structure is fixedly connected to the bottom end of the top crown beam.

[0007] Preferably, the first connecting groove and the second connecting groove are both concave-shaped.

[0008] Preferably, one end of the connecting strip away from the enclosure structure is fixedly connected to a side of the side wall of the main structure close to the enclosure structure.

[0009] Preferably, the connecting strip is in a convex shape.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model utilizes the design of enclosure mortise and tenon components, main body mortise and tenon components and waterproof isolation layer, and improves the traditional enclosure structure and the side walls of the main structure so that the structural nodes have conventional vertical support and anti-floating functions. At the same time, the connecting strip is interlaced with the first connecting groove and the second connecting groove. Under the action of the waterproof isolation layer, the construction cold joint between the enclosure structure of the subway station and the side wall of the main structure is eliminated, which fundamentally avoids the generation of water leakage in the underground structure and is beneficial to improving the waterproof performance of the cover-excavation reverse underground project. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the enclosing mortise and tenon joint assembly of the utility model.

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the main mortise and tenon assembly of the utility model.

[0015] In the figure: 1. enclosure mortise and tenon assembly; 11. enclosure structure; 12. first connection groove; 13. top crown beam; 14. second connection groove; 2. main body mortise and tenon assembly; 21. main structure side wall; 22. connection strip; 3. waterproof isolation layer. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model provides Figure 1-3 A subway station mortise and tenon anti-floating structure node shown in the figure includes a protective mortise and tenon assembly 1 and a main mortise and tenon assembly 2. The protective mortise and tenon assembly 1 includes a protective structure 11, and a top crown beam 13 for pile foundation connection is arranged at the top of the protective structure 11. The main mortise and tenon assembly 2 includes a main structure side wall 21, and a connecting strip 22 for mortise and tenon connection with the protective structure 11 is arranged on one side of the main structure side wall 21. A first connecting groove 12 and a second connecting groove 14 for inserting the connecting strip 22 are respectively opened on one side of the protective structure 11 and the top crown beam 13.

[0018] Specifically, a waterproof isolation layer 3 for waterproofing is respectively provided on one side of the inner wall of the first connecting groove 12 and the second connecting groove 14 .

[0019] Furthermore, the waterproof isolation layer 3 is laid between the connection nodes of the subway station enclosure structure 11 and the main structure side wall 21. Generally, waterproof membrane, waterproof coating, geotechnical isolation material, etc. are used. The waterproof and isolation effects are achieved by continuously and densely wrapping the materials.

[0020] Specifically, the top end of the enclosure structure 11 is fixedly connected to the bottom end of the top crown beam 13 , and the first connection groove 12 and the second connection groove 14 are both concave-shaped.

[0021] Furthermore, the retaining structure 11 adopts existing engineering pile rows, interlocking piles or underground continuous walls used for foundation pit enclosure and water-stop curtain functions. The fixed connection between the retaining structure 11 and the top crown beam 13 is connected by pouring reinforced concrete. The first connecting groove 12 is a later groove. A transverse first connecting groove 12 is opened in the retaining structure 11. The second connecting groove 14 is a cast-in-place groove. The top crown beam 13 is used to connect multiple pile foundations of the retaining structure 11 together to prevent collapse of the top edge of the foundation pit. When the top crown beam 13 is supported by formwork, the shape of the second connecting groove 14 is made by formwork, and the concrete of the top crown beam 13 is directly poured into the formwork to directly form the second connecting groove 14 without the need to excavate the second connecting groove 14. The first connecting groove 12 and the second connecting groove 14 have the same size.

[0022] Specifically, one end of the connecting strip 22 away from the enclosure structure 11 is fixedly connected to one side of the main structure side wall 21 close to the enclosure structure 11, and the connecting strip 22 is in a convex shape.

[0023] Furthermore, two connecting strips 22 are provided, and the positions of the connecting strips 22 on the side walls 21 of the main structure correspond to the positions of the first connecting groove 12 and the second connecting groove 14 respectively. When the formwork is supported for the construction of the side walls 21 of the main structure, the formwork of the connecting strips 22 is also supported, the steel bars are tied, and then the concrete is poured. After the formwork is removed, the connecting strips 22 are directly integrated with the side walls 21 of the main structure. The size of the connecting strips 22 is matched with the size of the first connecting groove 12. By inserting the connecting strips 22 into the first connecting groove 12 or the second connecting groove 14, and cooperating with the waterproof isolation layer 3, under the joint action of the three, it is possible to prevent the occurrence of water leakage in the underground structure. At the same time, this mortise and tenon connection method can eliminate the construction cold joint between the enclosure structure 11 and the side walls 21 of the main structure, thereby improving the waterproof performance of the underground project. At the same time, compared with the traditional structural nodes of the enclosure structure 11 and the side walls 21 of the main structure, the reinforced concrete rigid hard connection process has a simple structure and is convenient to construct. It also has conventional vertical support and permanent anti-floating functions.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mortise and tenon anti-floating structure node of a subway station, characterized in that: The invention comprises a housing mortise and tenon assembly (1) and a main body mortise and tenon assembly (2), wherein the housing mortise and tenon assembly (1) comprises a housing structure (11), the top of the housing structure (11) is provided with a top crown beam (13) for pile foundation connection, the main body mortise and tenon assembly (2) comprises a main body structure side wall (21), one side of the main body structure side wall (21) is provided with a connecting strip (22) for mortise and tenon connection with the housing structure (11), and one side of the housing structure (11) and the top crown beam (13) are respectively provided with a first connecting groove (12) and a second connecting groove (14) for inserting the connecting strip (22).

2. The mortise and tenon anti-floating structure node of a subway station according to claim 1, characterized in that: A waterproof isolation layer (3) for waterproofing is respectively provided on one side of the inner wall of the first connecting groove (12) and the second connecting groove (14).

3. The mortise and tenon anti-floating structure node of a subway station according to claim 1, characterized in that: The top end of the enclosure structure (11) is fixedly connected to the bottom end of the top crown beam (13).

4. The mortise and tenon anti-floating structure node of a subway station according to claim 1, characterized in that: The first connecting groove (12) and the second connecting groove (14) are both concave-shaped.

5. The mortise and tenon anti-floating structure node of a subway station according to claim 1, characterized in that: One end of the connecting strip (22) away from the enclosure structure (11) is fixedly connected to a side of the main structure side wall (21) close to the enclosure structure (11).

6. The mortise and tenon anti-floating structure node of a subway station according to claim 1, characterized in that: The connecting strip (22) is in a convex shape.

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