Spoon-shaped foundation pit leaking stoppage remedy device

Abstract

The utility model relates to the technical field of foundation pit leaking stoppage, in particular to a spoon-shaped foundation pit leaking stoppage remedying device which is installed on the outer side of an enclosure structure and covers a damage point of the enclosure structure and comprises a round pipe body buried in the ground, a spoon head body arranged below the round pipe body and a spoon head arranged below the spoon head body. Wherein the spoon head body comprises a connecting part and a covering part, the covering part covers the outer side of the damage point, and the connecting part and the covering part are of hollow structures which are communicated with each other. After grouting is conducted through the grouting equipment, slurry overflows from the grouting holes in the covering part to complete leaking stoppage and remedy of the damage point, in this way, remedy of the damage point is completed, it is guaranteed that when a foundation pit is excavated, damage cannot be further expanded, the overall structure is simple, and convenience of remedy operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pits, in particular to a spoon-shaped foundation pit leakage plugging and remediation device. Background Art

[0002] In current foundation pit engineering practice, retaining structures play a vital role in ensuring soil stability and surrounding environmental safety during foundation pit excavation. However, due to various reasons, such as insufficient design, construction quality problems or changes in geological conditions, these pre-constructed retaining structures may have defects, resulting in structural failure points.

[0003] Existing technologies mainly focus on plugging the damage points after foundation pit excavation, but these post-remedial measures are often insufficient because during the foundation pit excavation process, the damage points may be further enlarged due to factors such as construction vibration, causing greater damage.

[0004] Therefore, there is an urgent need for an effective plugging and remediation device for the damaged points of the retaining structure in the unexcavated foundation pit to prevent the damaged points from worsening during the foundation pit excavation process. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art that the leak plugging treatment is mainly carried out on the damaged points after the foundation pit is excavated, and proposes a spoon-shaped foundation pit leak plugging and remedial device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A spoon-shaped foundation pit plugging and remediation device is designed, which is installed on the outside of the enclosure structure and covers the damage point of the enclosure structure, including: a circular tube body buried in the ground, and a spoon head body is arranged below the circular tube body;

[0008] The spoon head body includes a connecting portion and a covering portion, wherein the covering portion covers the outside of the breaking point, the connecting portion and the covering portion are hollow structures interconnected, and a grouting hole is provided on the concave surface of the covering portion.

[0009] Furthermore, the covering portion is a spoon-shaped structure, and the grouting hole is arranged in the middle of the concave surface of the spoon-shaped structure.

[0010] Furthermore, the connecting part is a connecting tube, the inner cavity of the connecting tube is communicated with the hollow structure of the covering part, and the connecting tube is detachably connected to the circular tube body via a connecting assembly.

[0011] Furthermore, the connecting assembly includes a retracted portion fixed to the bottom of the circular tube body, and the retracted portion is inserted into the top opening of the connecting tube;

[0012] Wherein, a step groove and a removal channel are arranged on the inner side of the connecting pipe, the removal channel extends to the top side of the connecting pipe, and a clamping structure is arranged on the retracted portion.

[0013] Furthermore, the clamping structure includes a sleeve fixed on the retracted portion, and an insertion rod is movably inserted into the inner side of the sleeve through a spring;

[0014] Wherein, the end of the insert rod has a first arc angle and a second arc angle.

[0015] Furthermore, the first arc angle is located at the bottom side of the insertion rod, so that when the insertion rod moves up and down against the inner side surface of the connecting pipe, the insertion rod retracts until it rebounds in the step groove;

[0016] The second arc angle is located at one side of the insertion rod, and is used for the insertion rod to retract until it rebounds in the removal channel when the insertion rod rotates against the side of the step groove.

[0017] Furthermore, the step position of the step groove has a guiding surface, and when the insertion rod is inserted into the lower hole position of the step groove, the second arc angle is completely located in the lower hole position.

[0018] The utility model proposes a spoon-shaped foundation pit plugging and remediation device, which has the beneficial effect that: in the utility model, a covering part with a spoon-shaped structure is adopted to shield the outside of the damage point. After grouting by the grouting equipment, the grouting material overflows from the grouting holes on the covering part to complete the plugging and remediation of the damage point. In this way, the remediation of the damage point is completed, ensuring that the damage will not be further expanded during the foundation pit excavation. The overall structure is simple, which improves the convenience of the remediation operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a front view of the spoon head of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the rod structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the step groove structure of the utility model.

[0024] In the figure: 1. enclosure structure; 11. failure point; 2. circular tube; 3. spoon head; 31. connection part; 32. covering part; 33. grouting hole; 4. connection assembly; 41. retracted part; 42. step groove; 421. guide surface; 43. removal channel; 44. sleeve; 45. spring; 46. insertion rod; 47. first arc angle; 48. second arc angle; 5. foundation pit body; 6. grouting equipment. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Reference Figure 1-5 An embodiment of the utility model discloses a spoon-shaped foundation pit plugging and remediation device, which is installed on the outside of the retaining structure 1 and covers the damage point 11 of the retaining structure 1. Specifically, the retaining structure 1 described in this embodiment is enclosed on the outside of the foundation pit body 5, and the foundation pit body 5 has not been excavated. The water pressure inside and outside the pit is the same. Of course, the technicians in the relevant field know that the molding process of the retaining structure 1 is determined according to the site and the plan. The retaining structure 1 has defects due to some reasons, resulting in a damage point 11 on the structure. Before excavating a deep and large foundation pit, it is necessary to detect the retaining structure 1 to ensure that the retaining structure 1 will not have structural damage and other problems during the excavation process. The detection method is specifically determined by the site according to the actual situation. At present, there are advance detection methods, EFT / ECR electrode detection methods, temperature tracing methods, etc. to detect to find the damage point 11;

[0027] Furthermore, the remedial device in this embodiment includes: a circular tube body 2 buried in the ground, and a spoon head body 3 is arranged below the circular tube body 2;

[0028] The spoon head body 3 includes a connecting portion 31 and a covering portion 32, wherein the covering portion 32 covers the outside of the breaking point 11, and the connecting portion 31 and the covering portion 32 are hollow structures interconnected, and a grouting hole 33 is provided on the concave surface of the covering portion 32. Figure 2 As shown, in other embodiments, multiple auxiliary holes may be further opened around the outer side of the grouting hole 33 to accelerate the outflow of the slurry. Specifically, in this embodiment, five auxiliary holes are arranged around the concave surface of the covering part 32.

[0029] In some embodiments, the covering part 32 in the utility model is a spoon-shaped structure, and the grouting hole 33 is arranged in the middle of the concave surface of the spoon-shaped structure. Specifically, the center point of the spoon-shaped structure coincides with the destruction point 11, and the spoon-shaped structure can cover the destruction point 11 well.

[0030] During the remedial operation, after the specific position of the damage point 11 is detected, a hole is drilled on the ground close to the retaining structure 1 above the damage point using drilling equipment. After reaching the position of the damage point 11, the remedial device is placed into the well so that the center point of the covering part 32 of the remedial device is at the same height as the damage point.

[0031] After the position is determined, the grouting pipe is connected to the grouting device 6 to grout the remedial device. When the grout completely fills the covering part 32, the covering part 32 is removed by twisting the upper part of the remedial device, so that the covering part 32 remains underground and continues to prevent subsequent water from flowing into the damage point. Since there are no holes on the back side of the covering part 32, the grout can only flow out through the inner holes and solidify into a spoon-shaped covering damage point in the soil. In the process, some grout will flow into the gap of the damage point to reinforce the surrounding structure.

[0032] In particular, during grouting, due to the structural particularity of the spoon-shaped structure, the slurry hardens and forms a spoon-shaped structure that is buckled on the enclosure structure 1 and covers the failure point 11, and during the process, the slurry flows into the gap of the failure point 11 for reinforcement.

[0033] On the basis of the above-mentioned embodiment, the connecting part 31 in this embodiment is a connecting tube, the inner cavity of the connecting tube is connected with the hollow structure of the covering part 32, and the connecting tube and the circular tube body 2 are detachably connected via a connecting component 4. The detachable connection method can realize the convenient disassembly and removal of the circular tube body 2 to achieve the effect of reciprocating utilization.

[0034] Furthermore, in this embodiment, the connecting assembly 4 includes a retracted portion 41 fixed to the bottom of the circular tube 2, and the retracted portion 41 is inserted into the top opening of the connecting tube;

[0035] A step groove 42 and a removal channel 43 are provided on the inner side of the connecting pipe. The removal channel 43 extends to the top side of the connecting pipe. A clamping structure is provided on the retracted portion 41 .

[0036] Specifically, the clamping structure in this embodiment includes a sleeve 44 fixed on the retracted portion 41, and an insertion rod 46 is movably inserted into the inner side of the sleeve 44 through a spring 45; wherein the end of the insertion rod 46 has a first arc angle 47 and a second arc angle 48.

[0037] In addition, the first arc angle 47 is located on the bottom side of the insertion rod 46, and is used for the insertion rod 46 to retract until it rebounds into the step groove 42 when it moves up and down against the inner side surface of the connecting tube; the second arc angle 48 is located on one side of the insertion rod 46, and is used for the insertion rod 46 to retract until it rebounds into the removal channel 43 when it rotates against the side of the step groove 42.

[0038] That is to say, during the specific installation, the retracted portion 41 at the bottom of the circular tube 2 is first inserted into the top opening of the connecting tube, and the plug rod 46 is retracted at the bottom of the first arc angle 47. When the retracted portion 41 is completely inserted into the connecting tube, the plug rod 46 is inserted into the step groove 42 to complete the docking. Under the gravity of the circular tube 2, a stable connection is formed between the circular tube 2 and the connecting tube, so that the entire tube 2 can be buried underground later.

[0039] It should be noted that in the above-mentioned action, the insertion rod 46 is inserted into the bottom step position of the step groove 42. Figure 5 As shown, since the depth of the bottom step is greater than the depth of the previous step, the second arc angle 48 is completely placed in the bottom step, and the two horizontal sides of the insertion rod 46 and the side stops of the step groove 42, so the rotation of the circular tube 2 cannot be achieved at this time, and the circular tube 2 can only be pulled upward with the help of a lifting device;

[0040] Furthermore, during disassembly, the circular tube body 2 is pulled upward with the help of a lifting device. When the insertion rod 46 slides to the upper side of the step groove 42, the second arc angle 48 is exposed to the outside and can come into contact with the side of the step groove 42. At this time, the circular tube body 2 can be rotated so that the second arc angle 48 comes into contact with the side and shrinks until it slides into the removal channel 43. The circular tube body 2 can then be further lifted to take out the entire circular tube body 2. The spoon-shaped structure remains underground to keep the water sealed and also serves as a reinforcement.

[0041] like Figure 5 As shown, in order to ensure that the insertion rod 46 can be smoothly retracted when the circular tube body 2 moves upward, the step position of the step groove 42 in this embodiment is provided with a guide surface 421, and when the insertion rod 46 is inserted into the lower hole position of the step groove 42, the second arc angle 48 is completely located in the lower hole position.

[0042] In summary, in the utility model, a covering part 32 with a spoon-shaped structure is adopted to shield the outside of the damage point 11. After grouting by the grouting equipment 6, the grouting hole 33 on the covering part 32 overflows the grouting material to complete the plugging and remediation of the damage point 11. In this way, the remediation of the damage point 11 is completed to ensure that the damage will not be further expanded during the excavation of the foundation pit. The overall structure is simple, which improves the convenience of the remedial operation.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spoon-shaped foundation pit plugging and remediation device, installed on the outside of a retaining structure (1) and covering a damage point (11) of the retaining structure (1), characterized in that: include: A circular tube (2) buried in the ground, with a spoon head (3) arranged below the circular tube (2); The spoon head body (3) comprises a connecting portion (31) and a covering portion (32), wherein the covering portion (32) covers the outside of the breaking point (11), the connecting portion (31) and the covering portion (32) are hollow structures interconnected, and a grouting hole (33) is provided on the concave surface of the covering portion (32).

2. A spoon-shaped foundation pit plugging and remediation device according to claim 1, characterized in that: The covering portion (32) is a spoon-shaped structure, and the grouting hole (33) is arranged in the middle of the concave surface of the spoon-shaped structure.

3. A spoon-shaped foundation pit plugging and remediation device according to claim 1, characterized in that: The connecting part (31) is a connecting tube, the inner cavity of which is connected to the hollow structure of the covering part (32), and the connecting tube is detachably connected to the circular tube body (2) via a connecting assembly (4).

4. A spoon-shaped foundation pit plugging and remediation device according to claim 3, characterized in that: The connecting assembly (4) comprises an indented portion (41) fixed to the bottom of the circular tube (2), and the indented portion (41) is inserted into the top opening of the connecting tube; Wherein, a step groove (42) and a removal channel (43) are arranged on the inner side of the connecting pipe, the removal channel (43) extends to the top side of the connecting pipe, and a clamping structure is arranged on the retracted portion (41).

5. A spoon-shaped foundation pit plugging and remediation device according to claim 4, characterized in that: The clamping structure comprises a sleeve (44) fixed on the retracted portion (41), and an insertion rod (46) is movably inserted into the inner side of the sleeve (44) via a spring (45); Wherein, the end of the insert rod (46) has a first arc angle (47) and a second arc angle (48).

6. A spoon-shaped foundation pit plugging and remediation device according to claim 5, characterized in that: The first arc angle (47) is located at the bottom side of the insertion rod (46) and is used for the insertion rod (46) to retract until it rebounds into the step groove (42) when it moves up and down against the inner side surface of the connecting pipe; The second arc angle (48) is located on one side of the insertion rod (46) and is used for the insertion rod (46) to retract until it rebounds into the removal channel (43) when the insertion rod (46) rotates against the side of the step groove (42).

7. The spoon-shaped foundation pit plugging and remediation device according to claim 5 is characterized by: The step position of the step groove (42) is provided with a guide surface (421), and when the insertion rod (46) is inserted into the lower hole position of the step groove (42), the second arc angle (48) is completely located in the lower hole position.

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