Simple-to-construct wall joint anti-burst structure

Abstract

The utility model provides a simple and easy joint seam of underground continuous wall section joint place anti -infiltration technical field belongs to, including: install the H type joint frame of continuous wall reinforcement end of first width, cooperation muscle and set up the clearance outside between cooperation muscle and H type joint frame's horizontal part's second steel sheet, and the second steel sheet is close to the inside of foundation pit, the utility model discloses, through design H type joint frame, cooperation muscle and second steel sheet, second steel sheet as embedded part, can take preventive measures to the part of not happening sudden gushing in advance, and has designed the pre -buried grouting pipe, when the sudden gushing can be handled in time, greatly reduces sudden gushing disposal time, reduces the risk of risk expansion.

Description

Technical Field

[0001] This utility model relates to the field of seepage prevention technology at the joint of underground continuous wall trench sections, specifically a simple anti-surge structure for underground continuous wall joints. Background Technology

[0002] When diaphragm walls are used in deep foundation pit construction, if they encounter soil layers rich in confined water, such as silty sand, and the excavation depth of the foundation pit is large, a sudden surge may occur. This is mainly due to the effect of the difference in confined water pressure between the inside and outside of the foundation pit. Confined water can easily enter the inside of the foundation pit through the gaps in the diaphragm wall, causing sand to gush and flow from the joints of the diaphragm wall.

[0003] The occurrence of sudden surge phenomena is related to various factors such as geological conditions, excavation depth of the foundation pit, and construction quality of the diaphragm wall. To prevent sudden surges, it is necessary to strengthen geological exploration to understand the confined water situation of the soil layer; strictly control the excavation depth of the foundation pit and conduct sudden surge calculations when necessary; at the same time, it is also very important to improve the construction quality of the diaphragm wall, ensure the tightness of the joints, and reduce leakage channels. Therefore, this utility model provides a simple anti-sudden surge structure for diaphragm wall joints. Utility Model Content

[0004] To address the problem of sudden surges occurring at the joints of diaphragm walls, this utility model provides a simple anti-surge structure for diaphragm wall joints.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A simple wall-connecting joint anti-surge structure for connecting the first and second sections, comprising:

[0007] H-type joint bracket installed at the end of the reinforcing bars of the first continuous wall section;

[0008] The second section of the continuous wall reinforcement is bent inward near the H-shaped joint frame to form a bend and contraction section.

[0009] The outer side of the continuous wall reinforcement of the second section is fixedly connected with matching reinforcement bars that are aligned with the horizontal spacing of the H-type joint frame through a connecting frame.

[0010] A second steel plate is installed on the outside of the gap between the mating rib and the horizontal part of the H-type joint frame;

[0011] The second steel plate is located near the inside of the pit.

[0012] As a further description of the above technical solution:

[0013] The first continuous wall reinforcement of the first section is fixedly connected to the horizontal part of the H-shaped joint frame by a first steel plate, and the first steel plate is provided in two sets.

[0014] As a further description of the above technical solution:

[0015] A pre-embedded grouting pipe is fixedly installed inside the gap between the reinforcing bar and the horizontal part of the H-type joint frame.

[0016] As a further description of the above technical solution:

[0017] Several tie rods are fixedly connected between the steel reinforcement of the two second continuous walls.

[0018] As a further description of the above technical solution:

[0019] The H-type connector frame includes a longitudinal section, both ends of which are fixedly connected to a transverse section.

[0020] As a further description of the above technical solution:

[0021] The second steel plate is 400mm wide and 5mm thick.

[0022] As a further description of the above technical solution:

[0023] The length of the reinforcing bar shall not be less than 250mm, and the length of the transverse part on the side of the longitudinal part facing the second section shall not be less than 250mm.

[0024] As a further description of the above technical solution:

[0025] The gap width between the rib and the horizontal part of the H-type joint frame is 4mm ± 2mm.

[0026] The beneficial effects of this utility model are:

[0027] This utility model, through the design of an H-shaped joint frame, matching ribs, and a second steel plate, with the second steel plate serving as an embedded part, allows for preventative measures to be taken in advance for areas where no sudden surge has occurred; and the design of an embedded grouting pipe enables timely handling in the event of a sudden surge, greatly reducing the time required to handle the surge and mitigating the risk of the situation escalating. Attached Figure Description

[0028] To more clearly illustrate a simplified anti-surge structure for wall joints, the following figures are shown;

[0029] Figure 1 This is a cross-sectional schematic diagram of the present invention.

[0030] The labels in the attached diagram;

[0031] 1. H-type joint frame; 101. Longitudinal section; 102. Transverse section; 2. First steel plate; 3. Second steel plate; 4. Pre-embedded grouting pipe; a. Reinforcing steel of the first continuous wall; b. Reinforcing steel of the second continuous wall; c. Bending contraction section; d. Matching reinforcement; e. Connecting frame; f. Tie bar. Detailed Implementation

[0032] Please refer to the attached document. Figure 1 This application illustrates a simplified anti-surge structure for diaphragm wall joints, used to connect a first section and a second section. The first section can refer to any section other than the closed section, and the second section can refer to any section other than the first open section. The second section immediately follows the first section. This connection structure is used to ensure the tightness of the diaphragm wall joint, reduce leakage channels, and prevent surges at the diaphragm wall joint. Specifically, it includes: an H-shaped joint frame 1 installed at the end of the continuous wall reinforcement a in the first section, a matching reinforcement d, and a second steel plate 3 located outside the gap between the matching reinforcement d and the horizontal part 102 of the H-shaped joint frame 1, with the second steel plate 3 close to the inner side of the foundation pit.

[0033] The second continuous wall reinforcement b is bent inward near the H-type joint frame 1 to form a bent contraction section c, so that the bent contraction section c is located inside the H-type joint frame 1. The horizontal part 102 of the H-type joint frame 1 forms a water-proof part. The outer side of the second continuous wall reinforcement b is fixedly connected with a matching reinforcement d that is spaced and aligned with the horizontal part 102 of the H-type joint frame 1 through a connecting frame e. The matching reinforcement d is used to extend the position of the diaphragm wall joint and cooperates with the second steel plate 3 to achieve a water-proof structure.

[0034] The H-type joint frame 1 was installed before the first section was poured. The second steel plate 3 and the matching reinforcement d were installed before the second section was poured. After installation, high-strength concrete was poured. It was required that the outside of the second steel plate 3 should not be exposed to the poured concrete, so as to protect the second steel plate 3.

[0035] In one embodiment, a first steel plate 2 is fixedly connected between the first continuous wall reinforcement a and the horizontal part 102 of the H-type joint frame 1. Both the first continuous wall reinforcement a and the horizontal part 102 of the H-type joint frame 1 are provided with two sets, so the first steel plate 2 is also provided with two sets. Generally, the first continuous wall reinforcement a and the horizontal part 102 of the H-type joint frame 1 are connected by welding / bolt fixing.

[0036] In one embodiment, a pre-embedded grouting pipe 4 is fixedly installed inside the gap between the mating rib d and the horizontal part 102 of the H-type joint frame 1. Sealing mud can be injected into the gap between the mating rib d and the horizontal part 102 of the H-type joint frame 1 from the pre-embedded grouting pipe 4. This allows for timely handling in the event of a sudden surge, greatly reducing the time required to handle the surge and lowering the risk of the emergency escalating.

[0037] In one embodiment, several tie bars f are fixedly connected between the two second continuous wall reinforcement bars b. Of course, vertical reinforcement bars are also fixedly installed on the second continuous wall reinforcement bars b by tie wire. The second continuous wall reinforcement bars b, several tie bars f and vertical reinforcement bars form a three-dimensional reinforcement skeleton structure.

[0038] In one embodiment, the H-type connector frame 1 includes a longitudinal section 101, with a transverse section 102 fixedly connected to both ends of the longitudinal section 101. The longitudinal section 101 and the transverse section 102 are an integral structure, requiring the surface of the H-type connector frame 1 to be intact and able to block liquid flow.

[0039] In one embodiment, the second steel plate 3 is a steel plate with a width of 400 mm and a thickness of 5 mm.

[0040] In one embodiment, the length of the rib d is not less than 250 mm, and the length of the horizontal portion 102 on the side of the vertical portion 101 facing the second section is not less than 250 mm.

[0041] In one embodiment, the gap width between the mating rib d and the horizontal part 102 of the H-type joint bracket 1 is 4mm ± 2mm.

[0042] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0043] It should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A simple anti-surge structure for wall joints, used to connect the first and second sections, characterized in that, include: H-type splice bracket (1) installed at the end of the reinforcement (a) of the first continuous wall; The second continuous wall reinforcement (b) is bent inward near the H-type joint frame (1) to form a bend contraction section (c); The outer side of the continuous wall reinforcement (b) of the second section is fixedly connected by a connecting frame (e) to a matching reinforcement (d) that is spaced apart from the horizontal part (102) of the H-type joint frame (1); A second steel plate (3) is set outside the gap between the mating rib (d) and the horizontal part (102) of the H-type joint frame (1); The second steel plate (3) is located near the inside of the pit.

2. The simplified anti-surge structure for diaphragm wall joints according to claim 1, characterized in that: A first steel plate (2) is fixedly connected between the continuous wall reinforcement (a) of the first section and the horizontal part (102) of the H-type joint frame (1), and the first steel plate (2) is provided in two sets.

3. The simplified anti-surge structure for diaphragm wall joints according to claim 1, characterized in that: A pre-embedded grouting pipe (4) is fixedly installed inside the gap between the reinforcing bar (d) and the horizontal part (102) of the H-type joint frame (1).

4. The simplified anti-surge structure for wall joints according to claim 1, characterized in that: Several tie bars (f) are fixedly connected between the two second continuous wall reinforcement bars (b).

5. A simplified anti-surge structure for diaphragm wall joints according to claim 1, characterized in that, The H-type connector frame (1) includes a longitudinal section (101), and both ends of the longitudinal section (101) are fixedly connected to a transverse section (102).

6. A simplified anti-surge structure for diaphragm wall joints according to claim 5, characterized in that: The second steel plate (3) is a steel plate with a width of 400 mm and a thickness of 5 mm.

7. A simplified anti-surge structure for diaphragm wall joints according to claim 5, characterized in that: The length of the rib (d) is not less than 250mm, and the length of the horizontal part (102) on the side of the vertical part (101) facing the second section is not less than 250mm.

8. A simplified anti-surge structure for diaphragm wall joints according to claim 5, characterized in that: The gap width between the rib (d) and the horizontal part (102) of the H-type joint bracket (1) is 4mm ± 2mm.

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