Connecting joint structure of underground diaphragm wall

Abstract

The utility model relates to a connecting node structure of an underground diaphragm wall. The connecting node structure comprises a standard unit wall piece, a joint plate and a rigid water stop piece, the joint plates are corrugated plates, and the joint plates are positioned between the end parts of the adjacent standard unit wall pieces; the rigid water stop piece is perpendicularly fixed to the connector plate, and the two ends of the rigid water stop piece extend into the ends of the two adjacent standard unit wall pieces correspondingly. According to the underground diaphragm wall, the connector plates and the integrally-connected rigid water stop pieces are used for replacing an existing cross-shaped steel plate to be matched with a connector box to conduct connection between the standard unit wall pieces, the process of pulling out the connector box is omitted, therefore, connection between the standard unit wall pieces is simplified, and the construction difficulty of the underground diaphragm wall is reduced.

Description

Technical Field

[0001] The utility model relates to the field of building construction, and particularly refers to a connection node structure of a diaphragm wall. Background Art

[0002] A diaphragm wall is a foundation project that uses a grooving machine on the ground. Along the peripheral axis of a deep excavation project, a long and narrow deep groove is excavated under the condition of slurry wall protection. After cleaning the groove, a steel reinforcement cage is hoisted into the groove, and then underwater concrete is poured by the conduit method to form a unit groove section. In this way, it is carried out section by section to build a continuous reinforced concrete wall underground as a water cut-off, anti-seepage, load-bearing, and water-blocking structure.

[0003] The construction of the diaphragm wall is carried out in a segmented manner. When constructing adjacent segments of the diaphragm wall, in order to ensure the anti-seepage and connection strength between adjacent unit walls, a cross steel plate and a connector box are used for connection, and the connector box needs to be removed later, which has the problem of cumbersome construction. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a connection node structure of a diaphragm wall, so as to solve the problem of cumbersome connection steps between adjacent unit boxes of the diaphragm wall in the prior art.

[0005] To achieve the above purpose, the utility model provides a connection node structure of a diaphragm wall, including a standard unit wall panel, a joint plate, and a rigid water stop;

[0006] The joint plate is a corrugated plate, and the joint plate is located between the ends of adjacent standard unit wall panels;

[0007] The rigid water stop is vertically fixed to the joint plate, and both ends of the rigid water stop extend into the interiors of the ends of adjacent two standard unit wall panels respectively.

[0008] By adopting this technical solution, the joint plate is used to replace the cross steel plate and the connector box to cooperate with the connection of adjacent standard unit wall panels. The joint plate itself is a corrugated plate, which can directly increase the contact area with concrete, so as to increase the connection strength and anti-seepage performance. In addition, a rigid water stop is provided to further increase the anti-seepage performance, and at the same time, the contact area with concrete is further increased to ensure the connection strength, so as to simplify the node connection structure between adjacent standard unit wall panels, eliminate the process of pulling out the connector box in the process of using the cross steel plate to cooperate with the connector box for connecting adjacent standard unit wall panels, and reduce the construction difficulty.

[0009] Further, the joint plate is fixed at the end of the previously constructed standard unit wall panel among two adjacent standard unit wall panels by welding and pouring, and is connected and fixed to the end of the subsequently constructed standard unit wall panel by pouring.

[0010] By adopting this technical solution, after the previously constructed standard unit wall panel is completed, the joint plate is already inside the foundation pit, and the construction of the next section of the standard unit wall panel can be directly carried out, eliminating the process of separately lowering the joint plate, thereby increasing the construction efficiency of the diaphragm wall.

[0011] Further, the joint plate is arranged as an arched plate with the middle protruding towards any one of the standard unit wall panels.

[0012] By adopting this technical solution, by arranging the joint plate as an arched plate, its surface area is further increased, and after being consolidated with the concrete of the standard unit wall panel, the structural strength and anti-seepage performance of the mutual connection are further increased.

[0013] Further, the length of the line connecting the two ends of the joint plate is less than the thickness of the standard unit wall panel.

[0014] By adopting this technical solution, it is ensured that the joint plate is located inside the concrete after the adjacent standard unit wall panels are consolidated, avoiding the joint plate protruding to the outside of the formed wall.

[0015] Further, a number of rigid water stop sheets are evenly arranged on the joint plate.

[0016] By adopting this technical solution, the connection strength and anti-seepage performance between adjacent standard unit wall panels are further increased by increasing the connection area.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] Using the joint plate and the integrally connected rigid water stop sheet to replace the existing connection between standard unit wall panels using a cross steel plate and a joint box, the process of pulling out the joint box is eliminated, thereby simplifying the connection between standard unit wall panels and reducing the construction difficulty of the diaphragm wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a connection node structure of a diaphragm wall in the present utility model.

[0020] Description of the reference numerals: 1. Standard unit wall panel; 2. Joint plate; 3. Rigid water stop sheet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described below with reference to the drawings and specific embodiments.

[0022] Please refer to the attached Figure 1 The utility model provides a connection node structure for diaphragm walls, which includes a standard unit wall panel 1, a joint plate 2 and a rigid water stop sheet 3; the joint plate 2 is a corrugated plate, and the joint plate 2 is located between the ends of adjacent standard unit wall panels 1; the rigid water stop sheet 3 is vertically fixed to the joint plate 2, and both ends of the rigid water stop sheet 3 extend into the interiors of the ends of adjacent two standard unit wall panels 1 respectively; the joint plate 2 is used to replace the combination of a cross steel plate and a joint box for connecting adjacent standard unit wall panels 1. The joint plate 2 itself is a corrugated plate, which can directly increase the contact area with concrete, so as to increase the connection strength and anti-seepage performance. In addition, a rigid water stop sheet 3 is provided to further increase the anti-seepage performance, and at the same time, the contact area with concrete is further increased to ensure the connection strength, so as to simplify the node connection structure between adjacent standard unit wall panels 1, eliminate the process of pulling out the joint box during the connection process of adjacent standard unit wall panels 1 using a cross steel plate in combination with a joint box, and reduce the construction difficulty.

[0023] The joint plate 2 is fixed at the end of the previously constructed standard unit wall panel 1 among adjacent two standard unit wall panels 1 through welding and pouring, and is connected and fixed to the end of the subsequently constructed standard unit wall panel 1 through pouring; after the previously constructed standard unit wall panel 1 is constructed, the joint plate 2 is already inside the foundation pit, and the construction of the next section of the standard unit wall panel 1 can be directly carried out, eliminating the process of separately lowering the joint plate 2, so as to increase the construction efficiency of the diaphragm wall.

[0024] The joint plate 2 is set as an arched plate with the middle protruding towards any one side of the standard unit wall panel 1; by setting the joint plate 2 as an arched plate, its surface area is further increased, and after being consolidated with the concrete of the standard unit wall panel 1, the structural strength and anti-seepage performance of the mutual connection are further increased.

[0025] The length of the connection line between both ends of the joint plate 2 is less than the thickness of the standard unit wall panel 1; it is ensured that the joint plate 2 is inside the concrete after the adjacent standard unit wall panels 1 are consolidated, and the joint plate is prevented from protruding to the outside of the formed wall.

[0026] A number of rigid water stop sheets 3 are evenly arranged on the joint plate 2; further increase the connection strength and anti-seepage performance between adjacent standard unit wall panels 1 by increasing the connection area.

[0027] The above has described the utility model in detail in combination with the embodiments of the drawings. Those of ordinary skill in the art can make various variations to the utility model according to the above description. Therefore, certain details in the embodiments should not constitute a limitation to the utility model, and the protection scope of the utility model will be defined by the scope defined in the appended claims.

Claims

1. An underground continuous wall connection node structure, characterized in that: Includes standard unit wall pieces, joint plates and rigid water stop pieces; The joint plate is configured as a corrugated plate, and the joint plate is located between the ends of adjacent standard unit wall sheets; The rigid water stop plate is vertically fixed to the joint plate, and both ends of the rigid water stop plate extend to the interior of the ends of two adjacent standard unit wall pieces respectively.

2. The underground continuous wall connection node structure according to claim 1, characterized in that: The joint plate is fixed to the end of the first constructed standard unit wall piece of two adjacent standard unit wall pieces by welding and pouring, and is connected and fixed to the end of the later constructed standard unit wall piece by pouring.

3. The underground continuous wall connection node structure according to claim 1, characterized in that: The joint plate is configured as an arched plate with a middle portion protruding outwardly toward the standard unit wall piece on either side.

4. The underground continuous wall connection node structure according to claim 1, characterized in that: The length of the connection line between the two ends of the joint plate is less than the thickness of the standard unit wall piece.

5. The underground continuous wall connection node structure according to claim 1, characterized in that: A plurality of rigid water stop plates are evenly distributed on the joint plate.

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