Leakage detection and grouting leaking stoppage device for diaphragm wall

Abstract

The utility model relates to the technical field of grouting leakage stoppage, and discloses an underground diaphragm wall leakage detection and grouting leakage stoppage device which comprises a pipe core and a plurality of grouting pipes, the bottom of the pipe core is connected with a plurality of first grouting holes, the pipe core is connected with rubber rings on the two sides of the first grouting holes respectively, the pipe core penetrates through and extends into the grouting pipes, and the grouting pipes are connected with the rubber rings. A centralizing sleeve capable of centralizing the pipe core is arranged in each grouting pipe in a connected mode, a rapid limiting piece is arranged between every two adjacent grouting pipes in a connected mode, and a plurality of grouting hole sets are evenly distributed in the circumferential direction of each grouting pipe in a connected mode. Compared with the prior art, the grouting pipe has the advantages that the installation efficiency between the grouting pipes can be improved conveniently, the pipe core and the grouting pipes can be concentric conveniently, the rubber ring can keep a sealing state perfectly, and the grouting efficiency of grout is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting and leak-proofing, in particular to a ground-connected wall leakage detection and grouting and leak-proofing device. Background Art

[0002] In deep foundation pit construction, if the leakage problem of underground continuous wall is not solved in time, it may lead to serious consequences, including excessive settlement of surrounding ground, pipelines, buildings, and even collapse of ground buildings. When leakage of ground continuous wall is detected, the grouting water-stopping method, also known as high-pressure grouting, is used to stop the leakage. That is, the water-soluble polyurethane chemical grouting material is injected into the concrete cracks using a high-pressure grouting machine. When the slurry encounters the water in the concrete cracks, it will quickly disperse, emulsify, expand, and solidify. In this way, the solidified elastomer fills all the cracks in the concrete and completely blocks the water flow outside the concrete structure to achieve the purpose of stopping water and plugging leakage.

[0003] The grouting pipes in the existing ground-connected wall leakage detection and grouting plugging devices are usually connected by threads, and several sections of grouting pipes need to be connected by continuous threads, and the connection and installation efficiency is low; in addition, when the pipe core is introduced into the grouting pipe for grouting, in order to facilitate the introduction, the inner diameter of the grouting pipe is usually slightly larger than the outer diameter of the pipe core to facilitate the introduction of the pipe core, and then the rubber rings on both sides of the first grouting hole can be sealed. However, after the pipe core is introduced, there is a gap between the outer wall of the pipe core and the inner wall of the grouting pipe, so the two are not necessarily concentric, and the rubber ring cannot maintain a good sealing state. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is that the threaded connection installation efficiency is low, the pipe core and the grouting pipe are not concentric, the rubber ring cannot maintain a sealed state intact, and the grouting efficiency of the slurry is reduced.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a ground-connected wall leakage detection and grouting plugging device, including a pipe core and a plurality of grouting pipes, the bottom of the pipe core is connected to a plurality of first grouting holes, the pipe core is respectively connected to rubber rings on both sides of the first grouting holes, the pipe core extends through the grouting pipe, the grouting pipe is connected to a straightening sleeve for straightening the pipe core, quick limiters are connected between adjacent grouting pipes, and the grouting pipe is evenly connected to a plurality of grouting hole groups circumferentially.

[0008] Furthermore, the length of a single group of grouting holes is smaller than the spacing between adjacent rubber rings, and the grouting hole group includes a plurality of second grouting holes, and the second grouting holes are evenly distributed in an array around the grouting pipe, and the diameter of the second grouting holes is smaller than the diameter of the first grouting holes, so as to reduce the grouting pressure of the slurry introduced from the pipe core into the grouting pipe, and facilitate smoother slurry discharge.

[0009] Furthermore, the straightening sleeve includes a circular ring whose inner wall cooperates with the pipe core, the circular ring is connected between adjacent grouting hole groups, and an inverted conical groove is connected to the top of the circular ring. The coordinated arrangement of the circular ring and the inverted conical groove makes it convenient to introduce the pipe core into the grouting pipe. The inverted conical groove can guide the end of the pipe core to facilitate its straightening.

[0010] Furthermore, the quick limiting component includes a connecting tube connected to the bottom end of the grouting pipe, and limiting grooves are respectively connected to both sides of the other end of the connecting tube. The top ends of adjacent grouting pipes are relatively connected with limiting blocks that cooperate with the limiting grooves. The matching arrangement of the connecting tube, the limiting grooves and the limiting blocks facilitates the stable connection of the two grouting pipes together.

[0011] Furthermore, the limiting groove is an L-structure and one end thereof passes through the free end of the connecting tube, so as to increase the connection speed.

[0012] Furthermore, the outer wall of the grouting pipe is evenly connected with a plurality of reinforcing strips along the axial direction, and the reinforcing strips are evenly connected with a plurality of ring plates. The coordinated arrangement of the reinforcing strips and the ring plates facilitates improving the contact surface of the outer wall of the grouting pipe, and facilitates the slurry to be guided out through the grouting hole group and then injected into the gap between the ground-connected wall and the grouting pipe, thereby increasing the contact area between the grouting pipe and the ground-connected wall and improving the connection support strength between the grouting pipe and the ground-connected wall.

[0013] 3. Beneficial Effects

[0014] The advantages of the utility model compared with the prior art are:

[0015] Through the coordinated arrangement of the grouting pipe, the pipe core, the first grouting hole, the rubber ring, the straightening sleeve, the quick limit piece and the grouting hole group, it is convenient to connect the grouting pipe into different lengths through the quick limit piece according to the drilling depth to meet the grouting needs of different hole depths; the pipe core introduces the slurry into the grouting pipe through the first grouting hole, and the rubber rings on both sides can limit the slurry, which is convenient for the slurry to be gradually introduced into the ground-connected wall through the corresponding grouting hole group; the arrangement of the straightening sleeve facilitates the straightening of the pipe core, so that the rubber ring can effectively close the grouting pipes on both sides of the first grouting hole, to avoid the rubber ring shifting and failing to achieve effective sealing due to the misalignment of the pipe core. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a ground-connected wall leakage detection and grouting plugging device.

[0017] Figure 2 The utility model is a schematic diagram of the main cross-sectional structure of a ground-connected wall leakage detection and grouting plugging device.

[0018] Figure 3 The utility model is a partial cross-sectional structural schematic diagram of a ground-connected wall leakage detection and grouting plugging device.

[0019] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of A.

[0020] As shown in the figure: 1. pipe core, 2. grouting pipe, 3. first grouting hole, 4. rubber ring, 5. straightening sleeve, 6. second grouting hole, 7. circular ring, 8. inverted conical groove, 9. connecting tube, 10. limiting groove, 11. limiting block, 12. reinforcing strip, 13. ring plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] Combined with Figure 1 and Figure 2 , a ground-connected wall leakage detection and grouting plugging device, comprising a pipe core 1 and a plurality of grouting pipes 2, wherein the bottom of the pipe core 1 is connected with a plurality of first grouting holes 3, the pipe core 1 is respectively connected with rubber rings 4 on both sides of the first grouting holes 3, the pipe core 1 extends through the grouting pipe 2, the grouting pipe 2 is evenly connected with a plurality of grouting hole groups in the circumferential direction, the length of a single group of the grouting hole groups is less than the spacing between adjacent rubber rings 4, the grouting hole group comprises a plurality of second grouting holes 6, the second grouting holes 6 are evenly arrayed in the circumferential direction of the grouting pipe 2, the diameter of the second grouting holes 6 is less than the diameter of the first grouting holes 3, the grouting pipe 2 is connected with a straightening sleeve 5 for straightening the pipe core 1, the straightening sleeve 5 comprises a circular ring 7 whose inner wall cooperates with the pipe core 1, the circular ring 7 is connected between adjacent grouting hole groups, and the top of the circular ring 7 is connected with an inverted conical groove 8;

[0024] Through the coordinated arrangement of the grouting pipe 2, the pipe core 1, the first grouting hole 3, the rubber ring 4, the straightening sleeve 5, and the grouting hole group in the above structure, it is convenient for the pipe core 1 to pass the slurry through the first grouting hole 3 and the grouting hole group in sequence, and then introduce it into the ground-connected wall for grouting and plugging. The rubber rings 4 on both sides can limit the slurry in the grouting pipe 2, so that the slurry is gradually introduced into the ground-connected wall through the corresponding grouting hole group. The second grouting holes 6 are evenly arranged in an array around the grouting pipe 2. The diameter of the second grouting hole 6 is smaller than that of the first grouting hole 3, so as to reduce the grouting pressure of the slurry introduced from the pipe core 1 into the grouting pipe 2, and facilitate smoother slurry extraction; the arrangement of the straightening sleeve 5 facilitates the straightening of the pipe core 1, thereby ensuring the effective closure of the rubber ring 4.

[0025] Combined with Figure 3 and Figure 4 A quick stopper is connected between the adjacent grouting pipes 2, and the quick stopper includes a connecting tube 9 connected to the bottom end of the grouting pipe 2, and the other ends of the connecting tube 9 are respectively connected with stopper grooves 10 on both sides, and the top ends of the adjacent grouting pipes 2 are relatively connected with stopper blocks 11 that cooperate with the stopper grooves 10, and the stopper groove 10 is an L structure and one end passes through the free end of the connecting tube 9;

[0026] The coordinated arrangement of the quick stopper and the grouting pipe 2 in the above structure makes it easy to connect the grouting pipe 2 into different lengths through the quick stopper according to the drilling depth to meet the grouting needs of different hole depths.

[0027] Embodiment 2

[0028] Based on the first embodiment, combined with the attached Figure 1 The outer wall of the grouting pipe 2 is evenly connected with a plurality of reinforcing strips 12 along the axial direction, and the reinforcing strips 12 are evenly connected with a plurality of annular plates 13.

[0029] The coordinated arrangement of the reinforcing strips 12 and the ring plates 13 in the above-mentioned structure facilitates increasing the contact surface of the outer wall of the grouting pipe 2, and facilitates the slurry to be introduced through the grouting hole group and then injected into the gap between the ground-connected wall and the grouting pipe 2, thereby increasing the contact area between the grouting pipe 2 and the ground-connected wall and improving the connection support strength between the grouting pipe 2 and the ground-connected wall.

[0030] The specific usage is as follows:

[0031] First, after the infrared detector detects the leakage point according to the different temperatures (the temperature at the leakage point is usually lower than that at other parts), it is marked, and then a hole is drilled on its side through the drilling assembly to facilitate the introduction of the grouting pipe, and then the grouting pipe is quickly and effectively connected through the quick limiter until it reaches a length suitable for the depth of the drilled hole. The coordinated arrangement of the connecting tube 9, the L-shaped limit groove 10 and the limit block 11 facilitates to increase the connection speed of the two grouting pipes 2, so that the two grouting pipes 2 can be stably connected together; then the pipe core is introduced into the grouting pipe, the straightening sleeve can guide the pipe core, and the inverted conical groove 8 can guide the end of the pipe core 1, so that the pipe core 1 can pass through the straightening sleeve 5. The inner wall of the circular ring 7 is used to achieve straightening, so that the distance from the rubber ring 4 to the inner wall of the grouting pipe 2 is balanced. At this time, grouting is carried out while the pipe core 1 and the grouting pipe 2 remain concentric. The rubber rings 4 on both sides can limit the slurry, so that the grouting pipes 2 on both sides of the first grouting hole 3 can be effectively closed to avoid the center displacement of the rubber ring 4 due to the misalignment of the pipe core 1 and the inability to achieve effective sealing; the slurry is gradually introduced into the ground connected wall through the corresponding grouting hole group, and the second grouting holes 6 are evenly arranged in an array around the grouting pipe 2. The diameter of the second grouting holes 6 is smaller than the diameter of the first grouting holes 3, which is convenient for reducing the grouting pressure of the slurry introduced from the pipe core 1 into the grouting pipe 2, so that the slurry can be discharged more smoothly.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0034] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A ground-connected wall leakage detection and grouting plugging device, comprising a pipe core (1) and a plurality of grouting pipes (2), wherein the bottom of the pipe core (1) is connected to a plurality of first grouting holes (3), and the pipe core (1) is connected to rubber rings (4) on both sides of the first grouting holes (3), characterized in that: The pipe core (1) extends through the grouting pipe (2), a straightening sleeve (5) is connected inside the grouting pipe (2) and can straighten the pipe core (1), quick stoppers are connected between adjacent grouting pipes (2), and a plurality of grouting hole groups are evenly distributed around the grouting pipe (2).

2. A ground-connected wall leakage detection and grouting plugging device according to claim 1, characterized in that: The length of a single group of grouting holes is smaller than the spacing between adjacent rubber rings (4), and the grouting hole group comprises a plurality of second grouting holes (6). The second grouting holes (6) are evenly distributed in an array around the grouting pipe (2), and the diameter of the second grouting holes (6) is smaller than the diameter of the first grouting holes (3).

3. A ground-connected wall leakage detection and grouting plugging device according to claim 1, characterized in that: The straightening sleeve (5) comprises a circular ring (7) whose inner wall matches the pipe core (1); the circular ring (7) is connected between adjacent grouting hole groups; and an inverted conical groove (8) is connected to the top of the circular ring (7).

4. A ground-connected wall leakage detection and grouting plugging device according to claim 1, characterized in that: The quick stopper comprises a connecting tube (9) connected to the bottom end of the grouting pipe (2), the other end of the connecting tube (9) is respectively connected to two sides with stopper grooves (10), and the top ends of adjacent grouting pipes (2) are relatively connected with stopper blocks (11) that cooperate with the stopper grooves (10).

5. A ground-connected wall leakage detection and grouting plugging device according to claim 4, characterized in that: The limiting groove (10) is an L-structure and one end thereof passes through the free end of the connecting tube (9).

6. A ground-connected wall leakage detection and grouting plugging device according to claim 1, characterized in that: The outer wall of the grouting pipe (2) is evenly connected with a plurality of reinforcement strips (12) along the axial direction, and the reinforcement strips (12) are evenly connected with a plurality of ring plates (13).

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