Device for preventing turbulent flow in pouring process of underground diaphragm wall

Abstract

The utility model discloses a device for preventing turbulent flow in the pouring process of an underground diaphragm wall, which relates to the field of constructional engineering, and comprises an H-shaped steel body and a reinforcing steel bar group, the H-shaped steel body comprises a web plate and a wing plate, and the section sizes of the opposite surfaces of the H-shaped steel body and pre-buried H-shaped steel are the same; the multiple steel bar sets are located on the side, close to the embedded H-shaped steel, of the H-shaped steel body and extend out of the H-shaped steel body, each steel bar set comprises two steel bars with the same size specification, and the two steel bars of each steel bar set are symmetrically fixed to the inner side and the outer side of the web or the wing plate correspondingly. And an elbow is arranged at one end, extending out of the H-shaped steel body, of the steel bar. The underground diaphragm wall is conveniently butted and fixed with the pre-buried H-shaped steel, and turbulent flow in the pouring process of the underground diaphragm wall is effectively prevented; meanwhile, the structure is simple, manufacturing is convenient, and reutilization can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, in particular to a device for preventing flow disturbance during the pouring process of underground continuous walls. Background Art

[0002] During the concrete pouring process of the underground continuous wall trench section, when the design adopts H-steel rigid joints, the elevation of the H-steel top is consistent with the strong top elevation of the underground continuous wall. However, in order to ensure the quality of the underground continuous wall, over-pouring is often carried out. In order to prevent concrete disturbance, over-pouring is required. The over-pouring height is 0.5-1.0m. At this time, the H-steel needs to be adjusted according to the pouring height, otherwise the over-pouring part will easily overflow the top of the embedded H-steel and flow into the adjacent section.

[0003] At present, H-shaped steel is usually lengthened by riveting, welding and other methods, but the above-mentioned treatment methods consume a lot of steel, have low lengthening efficiency, affect the construction progress, and cannot be reused. Utility Model Content

[0004] The utility model aims to provide a device for preventing flow disturbance during the pouring process of underground continuous wall, so as to solve the problems existing in the background technology.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A device for preventing flow disturbance during the pouring of underground continuous walls, located above the bottom embedded H-shaped steel, comprising an H-shaped steel body and a steel bar group, wherein the H-shaped steel body comprises a web and a wing plate, and the cross-sectional dimensions of the H-shaped steel body and the opposite surface of the embedded H-shaped steel are the same;

[0007] Multiple groups of the steel bar groups are located on one side of the H-beam body close to the embedded H-beam and extend out of the H-beam body. The steel bar groups include two steel bars of the same size. The two steel bars of each group of steel bar groups are symmetrically fixed on the inner and outer sides of the web or wing plate, respectively. An elbow is provided at one end of the steel bar extending out of the H-beam body.

[0008] Furthermore, a rubber waterstop is provided on one side of the H-beam body close to the embedded H-beam, the shape of the rubber waterstop is the same as the cross-sectional shape of the H-beam body, and the rubber waterstop is clamped and fixed by the steel bar group.

[0009] Furthermore, the elbow is bent toward the outside of the H-shaped steel body, and the steel bar group forms an "X"-shaped structure.

[0010] Furthermore, the plurality of steel bar groups are evenly fixed on the web and the wing plates located on both sides of the web.

[0011] Furthermore, a hanging hole is provided in the middle of one end of the H-shaped steel body away from the steel bar.

[0012] The beneficial effects of the utility model are:

[0013] 1) It is convenient to connect and fix with the embedded H-shaped steel, effectively preventing disturbance during the pouring of underground continuous wall. The H-shaped steel body and the steel bar group are suspended from the top of the embedded H-shaped steel. Since the gap between the steel bar groups is compatible with the thickness of the web and wing of the embedded H-shaped steel, the steel bar group is inserted into the inner and outer sides of the embedded H-shaped steel, and the steel bar group plays a role of clamping and positioning.

[0014] 2) Simple structure and easy to manufacture. This device can be made of steel plates or finished H-shaped steel, which can improve the utilization of on-site construction materials and can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a working schematic diagram of a device for preventing flow disturbance during the pouring of underground continuous walls according to the utility model;

[0016] Figure 2 It is a front view of a device for preventing flow disturbance during the pouring process of underground continuous wall according to the utility model;

[0017] Figure 3 It is a top view of a device for preventing flow disturbance during the pouring of underground continuous walls according to the utility model;

[0018] In the figure, 1-embedded H-beam, 2-H-beam body, 201-hanging hole, 3-rebar group, 301-rebar, 302-elbow, 4-rubber waterstop. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments to clearly and completely describe the technical solution 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 of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0021] like Figure 1-Figure 3 As shown, a device for preventing turbulence during the pouring of underground continuous wall is located above the bottom embedded H-beam 1, including an H-beam body 2 and a steel bar group 3, wherein the H-beam body 2 includes a web and a wing plate, and the cross-sectional dimensions of the H-beam body 2 and the opposite surface of the embedded H-beam 1 are the same;

[0022] Multiple groups of the steel bar groups 3 are located on one side of the H-beam body 2 close to the embedded H-beam 1 and extend out of the H-beam body 2. The steel bar groups 3 include two steel bars 301 with the same size specifications. The two steel bars 301 of each group of steel bar groups 3 are symmetrically fixed on the inner and outer sides of the web or wing plate, respectively. An elbow 302 is provided at one end of the steel bar 301 extending out of the H-beam body 2.

[0023] Through the above technical solution, the embedded H-beam 1 is arranged in advance in the underground continuous wall groove section. During the concrete pouring process, the H-beam body 2 and the steel bar group 3 are suspended from the top of the embedded H-beam 1. Since the gap between the steel bar groups 3 is compatible with the thickness of the web and wing plates of the embedded H-beam 1, the steel bar group 3 is inserted into the inner and outer sides of the embedded H-beam 1, and the steel bar group 3 plays a role of clamping and positioning. The H-beam body 2 can fall on the top of the embedded H-beam 1 and fit tightly, so as to lengthen the embedded H-beam 1, prevent turbulence during the pouring of the underground continuous wall, and improve construction efficiency.

[0024] Meanwhile, the thickness of the H-shaped steel body 2 in this solution is the same as that of the embedded H-shaped steel 1. The preferred thickness of the H-shaped steel body 2 is spliced ​​with 1 cm steel plates, and the steel bars 301 with a diameter of 32 mm are welded, anchored or bonded to the H-shaped steel body 2 for fixation; meanwhile, the H-shaped steel body 2 can also be formed national standard H-shaped steel. This greatly improves the utilization of on-site construction materials, has a simple structure, is easy to manufacture, and has a low investment cost.

[0025] At the same time, when the H-shaped steel body 2 is lowered, the elbow 302 of the steel bar 301 can be easily adjusted and connected, avoiding the situation where the connection is inaccurate due to the shaking of the hoisting, thereby improving the connection efficiency and fault tolerance.

[0026] Furthermore, a rubber waterstop 4 is provided on one side of the H-beam body 2 close to the embedded H-beam 1 . The shape of the rubber waterstop 4 is the same as the cross-sectional shape of the H-beam body 2 . The rubber waterstop 4 is clamped and fixed by the steel bar group 3 .

[0027] According to the above technical solution, since the end faces of the H-beam body 2 and the embedded H-beam 1 are not smooth and flat enough, after the H-beam body 2 and the embedded H-beam 1 are docked, problems such as poor sealing effect and concrete infiltration at the docking point are likely to occur. Therefore, a rubber waterstop 4 is provided at one end of the H-beam body 2, and the thickness of the rubber waterstop 4 is slightly wider than the thickness of the H-beam body 2. The rubber waterstop 4 is pressed into the gap between the steel bar groups 3, and the rubber waterstop 4 is clamped and fixed by the steel bar 301. After the H-beam body 2 with the rubber waterstop 4 installed falls on the embedded H-beam 1, the rubber waterstop 4 can be pressed against the embedded H-beam 1 by the deadweight of the H-beam body 2 to complete the sealing of the docking point.

[0028] Furthermore, the elbow 302 is bent toward the outside of the H-shaped steel body 2, and the steel bar group 3 forms a "X"-shaped structure.

[0029] Through the above technical solution, the outwardly bent structure of the elbow 302 can facilitate the docking of the H-beam body 2 and the embedded H-beam 1.

[0030] Furthermore, the plurality of steel bar groups 3 are evenly fixed on the web and the wing plates located on both sides of the web.

[0031] Through the above technical solution, according to actual needs, multiple groups of steel bar groups 3 can be added to improve the clamping and fixing effect of the embedded H-shaped steel 1, and improve the stability of the H-shaped steel body 2 after being connected to the embedded H-shaped steel 1.

[0032] Furthermore, a hanging hole 201 is provided in the middle of one end of the H-shaped steel body 2 away from the steel bar 301 .

[0033] Through the above technical solution, the lifting hole 201 is used to facilitate the lifting of the H-beam body 2. The steel bar 301 cage and the H-beam body 2 are lowered to the top of the embedded H-beam 1, and the steel bar 301 cage is fixed with a cross arm made of channel steel to keep it still; then the H-beam body 2 is lifted to the top of the embedded H-beam 1 by using a steel wire rope, and aligned and fixed by the steel bar group 3; after confirming that the fixation is completed, the steel wire rope is untied, and the steel bar 301 cage is lowered to the designed elevation to start the subsequent pouring operation. At the same time, after the concrete pouring is completed, the H-beam body 2 is lifted out in time when the concrete is initially set to prevent the concrete from reaching a certain strength and being unable to be taken out, so as to achieve reuse.

[0034] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be protected by the claims attached to the utility model.

Claims

1. A device for preventing turbulence during the pouring of underground continuous walls, located above the bottom embedded H-shaped steel (1), Features: It comprises an H-shaped steel body (2) and a steel bar group (3), wherein the H-shaped steel body (2) comprises a web and a flange, and the cross-sectional dimensions of the opposite surfaces of the H-shaped steel body (2) and the embedded H-shaped steel (1) are the same; A plurality of groups of the steel bar groups (3) are located on a side of the H-shaped steel body (2) close to the embedded H-shaped steel (1) and extend out of the H-shaped steel body (2). The steel bar groups (3) include two steel bars (301) of the same size. The two steel bars (301) of each group of steel bar groups (3) are symmetrically fixed to the inner and outer sides of the web or wing plate, respectively. An elbow (302) is provided at one end of the steel bar (301) extending out of the H-shaped steel body (2).

2. The device for preventing flow disturbance during pouring of underground continuous wall according to claim 1, Features: A rubber water stop (4) is provided on one side of the H-shaped steel body (2) close to the embedded H-shaped steel (1); the shape of the rubber water stop (4) is the same as the cross-sectional shape of the H-shaped steel body (2); and the rubber water stop (4) is clamped and fixed by the steel bar group (3).

3. The device for preventing flow disturbance during pouring of underground continuous wall according to claim 1, Features: The elbow (302) bends toward the outside of the H-shaped steel body (2), and the steel bar group (3) forms an "X"-shaped structure.

4. The device for preventing flow disturbance during pouring of underground continuous wall according to claim 1, Features: The plurality of steel bar groups (3) are evenly fixed on the web and the wing plates located on both sides of the web.

5. The device for preventing flow disturbance during pouring of underground continuous wall according to claim 1, Features: A hanging hole (201) is provided in the middle of one end of the H-shaped steel body (2) away from the steel bar (301).

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