Double-T-shaped combined underground anti-impact wall

Abstract

The utility model belongs to the technical field of river bank protection water conservancy projects, and particularly relates to a double-T-shaped combined underground scour prevention wall. The underground anti-impact wall comprises continuous walls and a connecting structure for connecting the two continuous walls, a reinforcement cage in the underground anti-impact wall is disconnected at the connecting structure, and the disconnected position is connected through profile steel. The profile steel is I-shaped steel, and wing plates on the two sides of the I-shaped steel stretch across the broken position of the reinforcement cage and are connected with the reinforcement cage on the two sides of the broken position. According to the double-T-shaped combined underground anti-impact wall provided by the utility model, the reinforcement cage in the underground anti-impact wall is divided into the two T-shaped structures, and after the two T-shaped structures are separated from the lower part, the I-shaped steel is welded to connect the two T-shaped structures; and the problems that the construction site is narrow and cannot meet the hoisting condition of the overall I-shaped structure reinforcement cage can be solved, and popularization value is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of riverbank protection and water conservancy engineering technology, specifically relating to a double "T" combined underground anti-scour wall. Background Technology

[0002] Water conservancy projects have played a vital role in my country's economic development. In recent years, with the advancement of science and technology, more and more advanced technologies have been applied to water conservancy projects, including scour control wall construction technology. Currently, most scour control walls are "I"-shaped, employing an "I"-shaped steel cage. Forming this type of wall in one go is extremely difficult. Furthermore, the steel cage is heavy, and directly using a crane for hoisting can easily cause deformation, affecting the connection between sections and increasing the difficulty of lowering the cage. This also makes accurate positioning during hoisting challenging. Additionally, during the construction of "I"-shaped scour control walls, the trenching machine needs to work inside the "I" shape. In geology dominated by sand and gravel, where the collapse rate is high and grout leakage is severe, the trenching machine needs to be exposed on three sides to grip the trench. This gripping process easily leads to hole collapse, resulting in a high risk of the trenching machine overturning and compromising safe construction. Utility Model Content

[0003] This utility model aims to solve the problems of difficult overall processing and hoisting of the steel reinforcement cage of the "I"-shaped anti-collision wall, as well as insufficient safety.

[0004] This utility model provides the following technical solution: a double "T" combined underground anti-scour wall, the underground anti-scour wall includes a continuous wall and a connecting structure connecting the two continuous walls, the steel cage in the underground anti-scour wall is broken in the connecting structure, and the break is connected by steel sections.

[0005] Furthermore, the steel section is an I-beam, with its two side flanges spanning the break in the reinforcing cage, and the two side flanges connecting to the reinforcing cages on both sides of the break.

[0006] Furthermore, the connecting structure includes a transverse partition wall and a transverse beam, with the transverse beam located between two transverse partition walls. The transverse partition walls are plain concrete structures, while the transverse beams are reinforced concrete structures.

[0007] Furthermore, the I-beams are installed along the entire length of the connecting structure, and the I-beams are cast and connected to the transverse diaphragm wall, and the I-beams are welded to the reinforcing cage inside the transverse diaphragm beam.

[0008] Furthermore, reinforcing bars are welded to the double-sided flanges of the I-beam, and these reinforcing bars are welded to the reinforcing cage.

[0009] Furthermore, the steel cage inside the underground erosion barrier is broken in the middle of the connecting structure.

[0010] Further, the top of the continuous wall is provided with a crown beam, and the top of the crown beam and the connecting structure is connected with a tie plate.

[0011] Further, the side of the tie plate close to the mountain is provided with a cantilever retaining wall, and the side close to the water body is provided with a backup body, the cantilever retaining wall is located on the top of the tie plate, and the backup body is backed against the tie plate and the continuous wall.

[0012] Further, the continuous wall and the connecting structure are synchronously casted and formed.

[0013] Further, the bottom of the connecting structure is shallower than the continuous wall.

[0014] Compared with the prior art, the advantages of the utility model lie in that:

[0015] The double-T combined underground anti-scour wall provided by the utility model divides the reinforcement cage in the underground anti-scour wall into two T-shaped structures, and the two T-shaped structures are connected by welding H-shaped steel after being separated from the lower part; the problem that the site is narrow and the site cannot meet the hoisting conditions of the whole H-shaped structure reinforcement cage can be solved, and the utility model has popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of an underground anti-scour wall;

[0017] Figure 2 is a schematic view of H-shaped steel in a connecting structure;

[0018] Figure 3 is a schematic view of connection of H-shaped steel and a reinforcement cage.

[0019] In the drawing: 1-continuous wall; 2-reinforcement cage; 3-H-shaped steel; 4-transverse partition wall; 5-transverse beam; 6-strengthening steel; 7-tie plate; 8-cantilever retaining wall; 9-backup body; 10-crown beam. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the drawings without paying creative labor.

[0021] As Figure 1 , Figure 2 , Figure 3As shown: a double "T" combination type underground anti-scour wall, the underground anti-scour wall comprises a continuous wall 1 and a connecting structure connecting two continuous walls, the reinforcement cage 2 in the underground anti-scour wall is disconnected in the middle of the connecting structure, so that the reinforcement cage 2 in the underground anti-scour wall forms two "T" structures, and the disconnected part is connected through a profile steel to ensure the tensile strength and quality at the joint.

[0022] The profile steel is an I-beam 3, the double side flanges of the I-beam 3 span the disconnected part of the reinforcement cage 2, and the double side flanges are connected with the reinforcement cage 2 on both sides of the disconnected part. The double side flanges of the I-beam 3 are welded with reinforcing steel bars 6, the reinforcing steel bars 6 are welded with the reinforcement cage 2, and the welding area of the I-beam 3 with the reinforcement cage 2 is increased through the reinforcing steel bars 6 to increase the connection strength.

[0023] The connecting structure comprises a cross wall 4 and a cross beam 5, the cross beam 5 is located between the two cross walls 4, the cross wall 4 is a plain concrete structure, and the cross beam 5 is a reinforced concrete structure.

[0024] The I-beam 3 is arranged along the length of the connecting structure, the I-beam 3 is connected with the cross wall 4 by pouring, and the I-beam 3 is welded with the reinforcement cage 2 in the cross beam 5.

[0025] The top of the continuous wall is provided with a corbel 10, and the top of the corbel 10 and the connecting structure is connected with a tie plate 7.

[0026] The side of the tie plate 7 close to the mountain is provided with a cantilever retaining wall 8, and the side close to the water body is provided with a backup body 9, the cantilever retaining wall 8 is located at the top of the tie plate 7, and the backup body 9 is backed against the tie plate 7 and the continuous wall 1, the cantilever retaining wall 8 is used for preventing rockfall of the mountain, and the backup body 9 is used for preventing the collapse of the stratum close to the water body.

[0027] The continuous wall 1 and the connecting structure are synchronously poured and formed. The bottom of the connecting structure is shallower than the continuous wall 1.

[0028] The underground anti-scour wall construction comprises: guide wall construction → mud preparation → trenching construction → joint wall brushing → bottom cleaning and slurry replacement → trenching detection → I-beam 3 lowering → reinforcement cage 2 manufacturing and installation → lock box and lock pipe installation → concrete pouring → lock pipe and lock box top pulling → wall quality detection.

[0029] Specifically, the process involves first constructing an "I"-shaped guide wall on the ground according to the building's plan. Using a trenching machine with mud slurry as the wall, a "T"-shaped trench is excavated in two stages. Simultaneously, the same volume of mud slurry is added to the trench as soil is removed. After excavating to the design depth and removing sediment, the following are installed sequentially: I-beam 3 (with reinforcing steel bars 6 welded to it and supporting the flow-through sheet metal), the T-shaped trench section's reinforcing cage (reinforcing steel cage), the locking box, and the locking pipe. Underwater concrete pouring is used, with concrete poured into the trench through a guide pipe. The concrete pouring speed is matched to the mud slurry return speed. Once the concrete reaches the design elevation, one T-shaped trench unit is completed. Adjacent trench sections use flexible joints, and the ends of the unit trench sections form semi-circular locking pipes. Adjacent T-shaped trench units are cleaned during construction, and this cyclical process forms a continuous underground erosion barrier.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double "T" combination type underground impact protection wall, characterized in that: The underground anti-scour wall comprises continuous walls (1) and connecting structures connecting the two continuous walls, and the steel reinforcement cage (2) in the underground anti-scour wall is disconnected in the connecting structure, and the disconnected part is connected by a shaped steel; The shaped steel is an I-beam (3), the two side plates of the I-beam (3) span the disconnected part of the steel reinforcement cage (2), and the two side plates are connected with the steel reinforcement cage (2) on both sides of the disconnected part; The connecting structure comprises cross walls (4) and cross beams (5), the cross beam (5) is located between two cross walls (4), the cross wall (4) is a plain concrete structure, and the cross beam (5) is a reinforced concrete structure; The I-beam (3) is arranged along the length of the connecting structure, the I-beam (3) is connected with the cross wall (4) by pouring, and the I-beam (3) is welded with the steel reinforcement cage (2) in the cross beam (5).

2. The dual "T" combination type underground impact protection wall according to claim 1, wherein: The two side plates of the I-beam (3) are welded with reinforcing steel bars (6), and the reinforcing steel bars (6) are welded with the steel reinforcement cage (2).

3. The dual "T" combination type underground impact protection wall according to claim 1, characterized in that: The steel reinforcement cage (2) in the underground anti-scour wall is disconnected in the middle of the connecting structure.

4. The dual "T" combination type underground impact protection wall according to claim 1, characterized in that: The top of the continuous wall is provided with a crown beam (10), the crown beam (10) and the top of the connecting structure are connected with a tie plate (7).

5. A double "T" combination type underground impact protection wall according to claim 4, characterized in that: The side of the tie plate (7) close to the mountain is provided with a cantilever retaining wall (8), and the side close to the water body is provided with a backup body (9), the cantilever retaining wall (8) is located at the top of the tie plate (7), and the backup body (9) is backed against the tie plate (7) and the continuous wall (1).

6. The dual "T" combination type underground impact protection wall according to claim 1, characterized in that: The continuous wall (1) and the connecting structure are synchronously poured and formed.

7. The dual "T" combination type underground impact protection wall according to claim 1, characterized in that: The bottom of the connecting structure is shallower than the continuous wall (1).

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