Embedded grouting pipe mounting structure

Abstract

The utility model relates to a pre-embedded grouting pipe mounting structure, and belongs to the technical field of water conservancy dam diaphragm wall engineering, the pre-embedded grouting pipe mounting structure comprises a grouting pipe body and a mounting assembly for fixing the grouting pipe body in a reinforcement cage, the grouting pipe body is inserted into a gap formed by the reinforcement cage, a locking insertion hole is formed in the outer wall of the grouting pipe body, and the locking insertion hole is inserted into the mounting assembly. The mounting assembly comprises a limiting protruding block inserted into the locking inserting hole and a welding rod connected with the limiting protruding block. The side, away from the limiting protruding block, of the welding rod protrudes out of the reinforcement cage and is connected to the reinforcement cage in a welded mode. The multiple sets of mounting assemblies are arranged in the circumferential direction and the axial direction of the grouting pipe body at intervals. The grouting pipe has the effect that the grouting pipe is not prone to deviation when concrete is poured.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy dam anti-seepage wall engineering, and in particular to a pre-buried grouting pipe installation structure. Background Art

[0002] During the construction of a hydropower dam's anti-seepage wall, a trenching machine is used to dig a trench 6-7 meters or deeper. A steel cage is then placed into the trench and concrete is poured into it. Grouting pipes are typically installed on the steel cage, using it as a truss for the grouting pipes. Slurry is injected into the grouting pipes to fill voids and cracks in the soil, bonding the concrete to the soil. This provides greater stability and strength to the soil surrounding the trench, effectively preventing soil settlement and enhancing the bearing capacity of the foundation and subgrade. Furthermore, when the concrete in the trench solidifies, cavities are formed due to the air remaining in the concrete. The grouting pipes allow the slurry to flow into these cavities or cracks within the concrete during subsequent grouting, thereby increasing the strength of the concrete foundation or anti-seepage wall.

[0003] Because it's impossible to predict where cracks or cavities will appear within the poured concrete, multiple grouting pipes are installed on the steel cage, spaced at regular intervals. To prevent the pipes from shifting during concrete pouring, workers insert them into the gaps in the steel cage and then weld them to the cage.

[0004] In the prior art, because the gap around the grouting pipe in the middle of the rebar cage is small and difficult to insert welding rods for precise welding, the grouting pipe is welded to the rebar cage only at the grouting opening. However, the gap in the rebar cage is usually larger than the outer diameter of the grouting pipe, and the grouting pipe is only welded to the rebar cage at the grouting opening. When pouring concrete into the rebar cage, if the concrete around the grouting pipe is unevenly distributed, the side of the grouting pipe away from the grouting opening is squeezed by the concrete and easily deviates. This leads to inconsistent spacing between each grouting pipe, affecting the grouting effect. Utility Model Content

[0005] In order to prevent the grouting pipe from being easily deflected during concrete pouring, the present application provides a pre-buried grouting pipe installation structure.

[0006] This application provides a pre-buried grouting pipe installation structure, which adopts the following technical solutions:

[0007] A pre-buried grouting pipe installation structure includes a grouting pipe body and an installation assembly for fixing the grouting pipe body to a steel cage. The grouting pipe body is inserted into a gap formed by the steel cage. A locking socket is formed on the outer wall of the grouting pipe body. The installation assembly includes a limiting protrusion inserted into the locking socket and a welding rod connected to the limiting protrusion. The side of the welding rod facing away from the limiting protrusion protrudes from the steel cage and is welded to the steel cage.

[0008] The installation components are provided in multiple groups, and the multiple groups of installation components are arranged at intervals along the circumference and axial direction of the grouting pipe body.

[0009] Preferably, the installation assembly also includes an arc-shaped wrapping plate that can fit with the outer wall of the grouting pipe body, one end of the welding rod is fixed at the top of the arc of the arc-shaped wrapping plate, and the limiting protrusion is located on the side of the arc-shaped wrapping plate away from the welding rod.

[0010] Preferably, the arc-shaped wrapping plate is a plate body with a minor arc.

[0011] Preferably, a guiding slope is provided on the side of the limiting protrusion facing away from the arc-shaped wrapping plate to facilitate insertion into the locking socket.

[0012] Preferably, the mounting assembly further comprises a welding plate sleeved on the welding rod, the welding plate slides on the welding rod, and the welding plate abuts against the outer wall of the steel cage;

[0013] After the welding plate is moved and adjusted to fit the steel cage, the welding plate is welded to the steel cage, and the welding rod is welded to the welding plate.

[0014] Preferably, a steel bar groove is provided on a side of the welding plate close to the steel bar cage for facilitating embedding of corresponding steel bars on the steel bar cage.

[0015] Preferably, the welding plate is provided with binding wires for pre-fixing the welding plate to the steel cage.

[0016] Preferably, a wire passing hole for the binding wire to pass through is provided on the welding plate, and the wire passing hole is located near the outer side wall of the welding plate.

[0017] Preferably, a plurality of slurry outlet holes are provided on the outer wall of the grouting pipe body, and the plurality of slurry outlet holes are arranged at intervals along the circumference and axial direction of the grouting pipe body.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. When installing the grouting pipe body on the steel cage, first insert the grouting pipe body into the gap of the steel cage, then insert two installation components from the corresponding sides of the steel cage, so that the limiting protrusion is inserted into the locking socket to limit the grouting pipe body. Since the end of the welding rod away from the limiting protrusion and the welding plate are both located outside the steel cage, it is more convenient to weld the welding plate and the welding rod to the steel cage. At the same time, multiple groups of installation components are arranged at intervals on the grouting pipe body, so that multiple positions of the grouting pipe body are stably limited, thereby making the grouting pipe body less likely to tilt during concrete pouring;

[0020] 2. Due to the size error of the steel cage, the welding plate is placed and slid onto the welding rod before welding. This allows the welding plate to adjust its position to offset the error and better fit the steel cage. The welding is then performed after the welding plate is fitted to the steel cage, thereby improving the applicability of the installation structure.

[0021] 3. The steel bar grooves on the welding plate allow some steel bars to be embedded, thereby increasing the contact area between the welding plate and the steel cage, making the welding plate more stable after being welded to the steel cage;

[0022] 4. Before welding the welding plate, the welding plate can be pre-fixed on the steel cage by bundling wire, so that multiple workers can divide the work and cooperate. One person is responsible for pre-fixing the welding plate on the steel cage by bundling wire, and the other person is only responsible for welding the welding plate pre-fixed on the steel cage to the steel cage, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the installation structure in the embodiment of the present application.

[0024] Figure 2 It is an exploded schematic diagram of the grouting pipe body and the installation assembly in the embodiment of the present application.

[0025] Figure 3 It is a structural diagram of the installation components in an embodiment of the present application.

[0026] Explanation of the accompanying reference numerals: 1. Grouting pipe body; 11. Grouting hole; 12. Locking socket; 2. Mounting assembly; 21. Limiting protrusion; 211. Guide slope; 22. Welding rod; 23. Arc-shaped wrapping plate; 24. Welding plate; 241. Steel bar groove; 242. Wire threading hole; 25. Binding wire. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] The embodiment of the present application discloses a pre-buried grouting pipe installation structure. Figure 1 The pre-buried grouting pipe installation structure includes a grouting pipe body 1 and an installation assembly 2. The grouting pipe body 1 is inserted into the gap of the steel cage, and the installation assembly 2 is inserted into the steel cage through the gap on the other side of the steel cage and installed on the outer wall of the grouting pipe body 1 to connect with the grouting pipe body 1. Part of the installation assembly 2 protrudes from the steel cage and is welded to the steel cage. Among them, multiple groups of installation assemblies 2 are provided, and the multiple groups of installation assemblies 2 are arranged at intervals along the circumference and axial direction of the grouting pipe body 1. When pouring concrete into the steel cage, the grouting pipe body 1 is not easily tilted due to the support of the multiple groups of installation assemblies 2.

[0029] The outer wall of the grouting pipe body 1 is provided with a grouting hole 11 that communicates with the interior of the grouting pipe body 1. When slurry is injected into the grouting pipe body 1, the slurry can flow out of the grouting hole 11 and penetrate into the gaps or cavities in the formed concrete block to fill them. A plurality of grouting holes 11 are provided, and the plurality of grouting holes 11 are arranged at intervals along the circumference and axial direction of the grouting pipe body 1, thereby enabling grouting of gaps at different locations.

[0030] Reference Figure 1 and Figure 2 In this embodiment, two groups of mounting assemblies 2 are preferably symmetrically arranged along the circumference of the grouting pipe body 1. Each group of mounting assemblies 2 is located between two adjacent grouting holes 11 in the axial direction of the grouting pipe body 1, so that the mounting assemblies 2 do not block the grouting holes 11. The multiple groups of mounting assemblies 2 have the same structure, and the following description uses one group of mounting assemblies 2 as an example.

[0031] Reference Figure 2 and Figure 3 The installation assembly 2 includes a limiting protrusion 21, a welding rod 22, an arc-shaped wrapping plate 23 and a welding plate 24. The limiting protrusion 21 and the welding rod 22 are respectively located on opposite sides of the arc-shaped wrapping plate 23. The arc-shaped wrapping plate 23 can fit the outer wall of the grouting pipe body 1. The outer wall of the grouting pipe body 1 is provided with a locking socket 12 for inserting the limiting protrusion 21. The end of the welding rod 22 facing away from the arc-shaped wrapping plate 23 protrudes from the steel cage and is connected to the welding plate 24. The welding plate 24 is located outside the steel cage and the welding plate 24 is slidably sleeved on the welding rod 22, so that after the limiting protrusion 21 is inserted into the locking socket 12, the welding rod 22 can be adjusted to fit the welding plate 24 to fit the steel cage. After that, the welding rod 22 is welded to the welding plate 24, and then the welding plate 24 is welded to the steel cage. Among them, the limiting protrusion 21, the welding rod 22 and the arc-shaped wrapping plate 23 are welded and fixed to each other.

[0032] After being inserted into the locking socket 12, the stopper 21 does not extend into the interior of the grouting pipe body 1. The number of locking sockets 12 matches and corresponds to the number of mounting assemblies 2. The locking socket 12 is located between two adjacent grouting holes 11 in the circumferential direction of the grouting pipe body 1. In this embodiment, the curved wrapping plate 23 preferably has a shallow arc shape, which facilitates its insertion into the gap between the steel cages and its contact with the outer wall of the grouting pipe body 1.

[0033] Reference Figure 2 and Figure 3 The welding rod 22 is located at the top of the arc-shaped wrapping plate 23, and the limiting protrusion 21 is correspondingly located on the side of the arc-shaped wrapping plate 23 facing away from the welding rod 22. The outer edge of the limiting protrusion 21 facing away from the arc-shaped wrapping plate 23 is provided with a guiding slope 211. Due to the effect of the guiding slope 211, the dimension of the limiting protrusion 21 on the side facing away from the arc-shaped wrapping plate 23 is smaller than the dimension of the limiting protrusion 21 on the side facing away from the arc-shaped wrapping plate 23. As a result, when the limiting protrusion 21 is inserted into the locking hole 12, it is smoother and more convenient.

[0034] Reference Figure 2 and Figure 3 In this embodiment, the welding plate 24 is preferably a rectangular plate. A through-hole is formed in the welding plate 24 for the end of the welding rod 22 facing away from the arcuate wrapping plate 23 to pass through. The welding rod 22 is loosely fitted into the through-hole. Because the dimensions of the steel cage may vary during fabrication, the welding plate 24 is initially slidably adjusted on the welding rod 22 to facilitate contact between the welding plate 24 and the outer wall of the steel cage.

[0035] Two semicircular steel bar grooves 241 are spaced apart on one side of the welding plate 24 close to the steel cage. The welding rod 22 is inserted into the gap of the steel cage and the two adjacent steel bars are respectively embedded in the two steel bar grooves 241, thereby increasing the contact area between the welding plate 24 and the steel cage, making the welding plate 24 more stable after being welded to the steel cage.

[0036] Reference Figure 2 and Figure 3 The welding plate 24 is also provided with wire insertion holes 242. If two wire insertion holes 242 form a group of binding holes, there are four groups of binding holes. These four groups of binding holes are located at four right angles of the welding plate 24 (i.e., near the outer wall of the welding plate 24), and each two groups of binding holes correspond to the same steel bar. The two wire insertion holes 242 in each group of binding holes are located on both sides of the width of the steel bar groove 241. A U-shaped binding wire 25 is inserted and bent into each group of binding holes. The opening of the binding wire 25 faces the steel bar cage. After the welding plate 24 and the steel bar cage are attached, the binding wire 25 can be used to pre-fix the welding plate 24 to the steel bar cage, and then welded together.

[0037] The principle of the pre-buried grouting pipe installation structure of the present embodiment is as follows: When installing the grouting pipe body 1, first insert the grouting pipe body 1 into the gap of the steel cage. Then, insert the arc-shaped wrapping plate 23, the limiting protrusion 21, and the welding rod 22 from opposite sides of the steel cage, and insert the corresponding limiting protrusion 21 into the corresponding locking socket 12. Then, adjust the welding plate 24 so that the corresponding steel bar is embedded in the steel bar groove 241. Then, twist the binding wire 25 to pre-fix the welding plate 24 to the steel cage. Finally, weld the welding rod 22 to the welding plate 24, and then weld the welding plate 24 to the steel cage. As a result, the grouting pipe body 1 is supported and not prone to tilting when pouring concrete into the steel cage.

[0038] Before pouring concrete into the steel cage, the staff will use pillars to insert into the grouting pipe body 1 to block the slurry outlet 11, so that the slurry in the concrete is not easy to enter the grouting pipe body 1 through the slurry outlet 11. Since the limiting protrusion 21 does not extend into the interior of the grouting pipe body 1 after being inserted into the locking socket 12, the limiting protrusion 21 does not interfere with the subsequent pillars inserted into the interior of the grouting pipe body 1.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pre-buried grouting pipe installation structure, characterized by: The invention comprises a grouting pipe body (1) and an installation assembly (2) for fixing the grouting pipe body (1) in a steel cage, wherein the grouting pipe body (1) is inserted into a gap formed by the steel cage, a locking socket (12) is provided on the outer wall of the grouting pipe body (1), and the installation assembly (2) comprises a limiting protrusion (21) inserted into the locking socket (12) and a welding rod (22) connected to the limiting protrusion (21), wherein the side of the welding rod (22) facing away from the limiting protrusion (21) protrudes from the steel cage and is welded to the steel cage; The installation components (2) are provided in multiple groups, and the multiple groups of the installation components (2) are arranged at intervals along the circumference and axial direction of the grouting pipe body (1).

2. The pre-buried grouting pipe installation structure according to claim 1, characterized in that: The mounting assembly (2) further comprises an arc-shaped wrapping plate (23) capable of being fitted with the outer wall of the grouting pipe body (1); one end of the welding rod (22) is fixed to the top of the arc of the arc-shaped wrapping plate (23); and the limiting protrusion (21) is located on the side of the arc-shaped wrapping plate (23) facing away from the welding rod (22).

3. The pre-buried grouting pipe installation structure according to claim 2, characterized in that: The arc-shaped wrapping plate (23) is a plate body with a minor arc.

4. The pre-buried grouting pipe installation structure according to claim 2, characterized in that: A guiding slope (211) is provided on the side of the limiting protrusion (21) facing away from the arc-shaped wrapping plate (23) for facilitating insertion into the locking socket (12).

5. The pre-buried grouting pipe installation structure according to claim 4, characterized in that: The mounting assembly (2) further comprises a welding plate (24) sleeved on the welding rod (22), the welding plate (24) sliding on the welding rod (22), and the welding plate (24) abutting against the outer wall of the steel cage; When the welding plate (24) is moved on the welding rod (22) to adjust the fit with the steel cage, the welding plate (24) is welded to the steel cage, and the welding rod (22) is welded to the welding plate (24).

6. The pre-buried grouting pipe installation structure according to claim 5, characterized in that: A steel bar groove (241) is provided on one side of the welding plate (24) close to the steel bar cage for facilitating the embedding of corresponding steel bars on the steel bar cage.

7. The pre-buried grouting pipe installation structure according to claim 6, characterized in that: The welding plate (24) is provided with binding wires (25) for pre-fixing the welding plate (24) to the steel cage.

8. The pre-buried grouting pipe installation structure according to claim 7, characterized in that: The welding plate (24) is provided with an iron wire passing hole (242) for the binding iron wire (25) to pass through, and the iron wire passing hole (242) is located near the outer side wall of the welding plate (24).

9. The pre-buried grouting pipe installation structure according to claim 1, characterized in that: A plurality of slurry outlet holes (11) are provided on the outer wall of the grouting pipe body (1), and the plurality of slurry outlet holes (11) are arranged at intervals along the circumference and axial direction of the grouting pipe body (1).

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