Leaking stoppage emergency rescue device for flowing water sand seepage of foundation pit

Abstract

The utility model relates to the technical field of grouting and leaking stoppage devices, in particular to a leaking stoppage and emergency rescue device for flowing water sand seepage of a foundation pit, which comprises a pumping well arranged on the outer side of an enclosure structure, a pumping pipe communicated with a pump piece is arranged in the pumping well, and the enclosure structure is arranged on the outer side of the foundation pit in a surrounding mode. The pumping well is arranged at the leakage hole of the enclosure structure; the utility model further comprises a filling mechanism, the filling mechanism comprises a hose connected with grouting equipment and a bag, in the construction process of the foundation pit, the leakage hole is plugged by adopting a bag grouting mode, the bag can be sealed on the inner side of the leakage hole after grouting, slurry cannot flow away, and the leakage hole can be sealed by the bag after grouting. And in this way, the integrity after grouting is improved, follow-up grouting is conducted on the interior of the leakage hole, the leakage stopping stability of the leakage hole is improved, the leakage stopping strength is greatly guaranteed, and the long-time use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting plugging devices, in particular to a plugging and rescue device for water seepage and sand seepage in a foundation pit. Background Art

[0002] The foundation pit retaining structure mainly bears the water pressure and soil pressure generated by the foundation pit excavation unloading, and transfers this pressure to the support. It is a temporary retaining wall structure for stabilizing the foundation pit. Its construction method can refer to the deep foundation pit retaining construction method disclosed in Chinese Patent Publication No. "CN108951640A", including: constructing a first support between two adjacent first retaining walls; excavating a local shallow soil body; pouring a top plate above the first support; excavating the first layer of soil from the first support downward; if digging from the first support to the second support position, constructing a second retaining wall; and reinforcing between the first retaining wall and the second retaining wall.

[0003] Since the retaining structure has at least one leakage hole due to construction technology, material quality, on-site conditions, etc., the leakage hole is discovered during the main construction process of the foundation pit. Its existence is serious and makes the foundation pit construction unable to proceed. Therefore, emergency plugging measures for the leakage hole are required. The current plugging method mostly uses direct grouting of the leakage hole. Direct grouting is only a temporary plugging measure, especially in foundation pits with complex geological conditions or high water levels. A longer-term solution may be required. Based on this, we propose a plugging rescue device for foundation pit water seepage and sand. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that direct grouting is only a temporary plugging measure and cannot meet the long-term use requirements, and proposes a plugging and rescue device for foundation pit water seepage and sand.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A leak-proof rescue device for water seepage in a foundation pit is designed, comprising a pumping well opened outside a retaining structure, a pumping pipe connected to a pumping element is arranged in the pumping well, the retaining structure is surrounded outside the foundation pit, and the pumping well is arranged at a leaking hole of the retaining structure;

[0007] It also includes a filling mechanism, which includes a hose and a bag for connecting to the grouting equipment. The hose and the bag are detachably connected, and the bag is used to fill the leakage hole.

[0008] Furthermore, the depth of the pumping well is greater than the depth of the leakage hole, wherein a filter cotton net is fixedly installed on the inner bottom of the pumping well.

[0009] Furthermore, a water-stop curtain is provided outside the pumping well;

[0010] The water-stop curtain is a semicircular structure, wherein the depth of the water-stop curtain is greater than the buried depth of the pumping well and the water-stop curtain is sleeved on the outside of the pumping well, and both ends of the water-stop curtain abut against the outer wall of the enclosure structure.

[0011] Furthermore, the pouch includes a sleeve portion connected to the pouch body and communicating with the pouch body, and a plurality of hook sleeves are distributed at intervals on the outer side of the sleeve portion.

[0012] Furthermore, a plurality of fiber steel bars are arranged on the outside of the hose, and the end of the fiber steel bars has a hook portion, and the hook portion is hooked in the hook sleeve.

[0013] Furthermore, a reinforcement portion is provided on the outside of the hose, a connecting ring is fixedly installed on the outside of the reinforcement portion, a plurality of rotating seats are distributed on the outer circumference of the connecting ring, the hook portion is rotatably connected to the rotating seat, and the end of the hook portion extends to the outside of the rotating seat to form a pressing portion.

[0014] Furthermore, the fiber reinforcement bars and hook sleeves are each provided in four numbers.

[0015] Furthermore, a plurality of supports are distributed on the top of the enclosure structure.

[0016] The utility model proposes a leak-proof emergency rescue device for water seepage in a foundation pit, and the beneficial effect is that when the foundation pit is under construction, the utility model seals the leakage hole by grouting with a bag. Since the bag will seal the outside of the leakage hole after grouting, the slurry will not disperse, thus improving the integrity after grouting. After the subsequent grouting in the leakage hole, the plugging stability of the leakage hole is improved, which greatly ensures the plugging strength and meets the needs of long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the filling mechanism structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the pouch structure of the utility model.

[0020] In the figure: 1. enclosure structure; 2. pumping well; 21. seepage hole; 22. filter cotton net; 23. pumping pipe; 3. foundation pit; 4. filling mechanism; 41. hose; 42. bag; 421. bag body; 422. sleeve part; 423. hook sleeve; 43. fiber steel bar; 44. hook part; 441. pressing part; 45. connecting ring; 46. rotating seat; 5. water-stop curtain; 6. support. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1-3 An embodiment of the utility model discloses a leak-proof and rescue device for water seepage in a foundation pit, the device comprises a pumping well 2 opened outside a retaining structure 1, a pumping pipe 23 connected to a pump member is arranged in the pumping well 2, the retaining structure 1 is enclosed outside a foundation pit 3, and specifically, a plurality of supports 6 are distributed on the top of the retaining structure 1. It is known to those skilled in the art that the supports 6 are connected to both sides of the foundation pit retaining structure 1 to control its deformation, the pumping well 2 is arranged at a leakage hole 21 of the retaining structure 1, of course, in this embodiment, one leakage hole 21 is taken as an example, when there are a plurality of leakage holes 21 on the retaining structure 1, a plurality of pumping wells 2 can be used for coordination;

[0023] It also includes a filling mechanism 4 , which includes a hose 41 for connecting to the grouting equipment and a bag 42 . The hose 41 and the bag 42 are detachably connected, and the bag 42 is used to fill the leakage hole 21 .

[0024] In some embodiments, in the utility model, the depth of the pumping well 2 is greater than the depth of the leakage hole 21, and its purpose is to lower the water level so that the water level is lower than the leakage hole 21, and the purpose is to prevent water from still flowing out of the leakage hole 21 during the plugging process, wherein a filter cotton net 22 is fixedly installed on the inner bottom of the pumping well 2, and the filter cotton net 22 is used to filter the water inlet of the pumping pipe 23 to prevent large pieces of soil and the like from entering the pumping pipe 23.

[0025] In addition, in this embodiment, a water-stop curtain 5 is also provided outside the pumping well 2;

[0026] The water-stop curtain 5 is a semicircular structure, and is sleeved on the outside of the pumping well 2, with both ends abutting against the outer wall of the enclosure structure 1. The water-stop curtain 5 is used to prevent the pumping well from causing the surrounding water level to drop excessively to achieve the purpose of protecting the environment.

[0027] In other embodiments, the shape of the water-stop curtain 5 can also be a straight line or a slightly curved water-stop curtain 5 according to actual conditions. This method is a conventional method used by technicians in the relevant field and will not be elaborated here.

[0028] In some embodiments, the pouch 42 includes a pouch body 421 connected to a sleeve portion 422 that communicates with the pouch body 421 , and a plurality of hooks 423 are spaced apart and distributed outside the sleeve portion 422 .

[0029] Furthermore, a plurality of fiber steel bars 43 are provided on the outside of the hose 41. The end of the fiber steel bar 43 has a hook 44, and the hook 44 is hooked in the hook sleeve 423. That is, in this embodiment, four fiber steel bars 43 are hooked on the hook sleeve 423 to connect and fix them to prevent them from detaching during the grouting process.

[0030] On the basis of the above embodiments, a reinforcement portion is provided on the outer side of the hose 41 in this embodiment. Preferably, the reinforcement portion in this embodiment can be supported and fixed internally by a steel ring, and a connecting ring 45 is fixedly installed on the outer side of the reinforcement portion. A plurality of rotating seats 46 are distributed on the outer circumference of the connecting ring 45, and the hook portion 44 is rotatably connected to the rotating seat 46, and the end of the hook portion 44 extends to the outer side of the rotating seat 46 to form a pressing portion 441. It should be noted that in this embodiment, four fiber steel bars 43 and hook sleeves 423 are provided, that is, in this embodiment, four fiber steel bars 43 are rotatably connected to the connecting ring 45 to facilitate operation thereof. At the same time, since the pressing portions 441 are formed on the ends thereof, the four fiber steel bars 43 can be flipped by holding the four pressing portions 441 during the process of setting the sleeve portion 422 to ensure the convenience of the sleeve portion 422.

[0031] During operation, when the retaining structure 1 of the foundation pit 3 leaks, first determine the location of the leakage hole 21 and conduct a preliminary survey of the leakage flow. If the leakage is small, use a water pipe to treat the water and sand flowing at the leakage hole. If the leakage is too large, drill a pumping well 2 near the leakage hole 21 outside the foundation pit 3. In particular, the depth of the pumping well 2 is greater than the depth of the leakage hole 21, and a water-stop curtain 5 is arranged around the pumping well 2. When the water level drops below the leakage hole 21, grouting begins:

[0032] When water stops flowing out of the leakage hole 21, the inner wall of the leakage hole 21 and the surrounding loose concrete, sand inclusions, and mud inclusions are cleaned to trim the leakage hole 21 to a nearly geometrically regular state;

[0033] Connect the hose 41 and the grouting equipment, install the bag 42 on the hose 41, and then hook the edge of the bag 42 with the fiber steel bar 43 to form a system;

[0034] Insert the hose 41 into the leakage hole 21 and penetrate the enclosure structure 1, and send the hose 41 and the bag 42 to the cavity formed at the leakage location due to the leakage, and then perform grouting. At this time, the slurry will reach the soil outside the pit through the hose 41, but it will be wrapped by the bag 42 and the slurry cannot disperse. The fiber steel bar 43 pulls the mouth of the bag 42 so that it is always in the leakage hole 21;

[0035] When the slurry fills the voids formed on the inside due to factors such as flowing water and sand seepage, the leakage hole 21 is poured in. The bag 42 is wrapped with a large amount of slurry to form a bowl-like shape, which is buckled on the retaining structure 1 to form a seal on the inside. The fiber steel bar 43 ensures that it will not fall from the leakage hole 21 during the grouting process. After the grouting of the leakage hole 21 is completed, the outside is sealed. The leakage grouting and plugging method of the foundation pit retaining structure is completed.

[0036] 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 device for plugging and rescuing water seepage in a foundation pit, characterized in that: It comprises a pumping well (2) opened outside the enclosure structure (1), a pumping pipe (23) connected to a pumping element is arranged in the pumping well (2), the enclosure structure (1) is surrounded outside the foundation pit (3), and the pumping well (2) is arranged at a leakage hole (21) of the enclosure structure (1); It also comprises a filling mechanism (4), the filling mechanism (4) comprising a hose (41) and a bag (42) for connecting to the grouting equipment, the hose (41) and the bag (42) being detachably connected, and the bag (42) being used to fill and block the leakage hole (21).

2. The device for plugging and rescuing water seepage in a foundation pit according to claim 1 is characterized in that: The depth of the water pumping well (2) is greater than the depth of the leakage hole (21), wherein a filter cotton net (22) is fixedly installed on the inner bottom of the water pumping well (2).

3. The device for plugging and rescuing water seepage in a foundation pit according to claim 2, characterized in that: A water-stop curtain (5) is also provided on the outside of the pumping well (2); The water-stop curtain (5) is a semicircular structure, and is sleeved on the outside of the pumping well (2), with both ends contacting the outer wall of the enclosure structure (1).

4. The device for plugging and rescuing water seepage in a foundation pit according to claim 1, characterized in that: The bag (42) comprises a bag body (421) and a sleeve portion (422) connected to the bag body (421), and a plurality of hook sleeves (423) are distributed at intervals outside the sleeve portion (422).

5. The device for plugging and rescuing water seepage in a foundation pit according to claim 4, characterized in that: A plurality of fiber reinforcement bars (43) are arranged on the outside of the hose (41), and the end of each fiber reinforcement bar (43) has a hook portion (44), and the hook portion (44) is hooked in the hook sleeve (423).

6. The device for plugging and rescuing water seepage in a foundation pit according to claim 5, characterized in that: A reinforcement portion is provided on the outer side of the hose (41), a connecting ring (45) is fixedly installed on the outer side of the reinforcement portion, a plurality of rotating seats (46) are distributed on the outer circumference of the connecting ring (45), the hook portion (44) is rotatably connected to the rotating seat (46), and the end of the hook portion (44) extends to the outer side of the rotating seat (46) to form a pressing portion (441).

7. The device for plugging and rescuing water seepage in a foundation pit according to claim 5, characterized in that: The fiber steel bars (43) and hook sleeves (423) are each provided in four numbers.

8. The device for plugging and rescuing water seepage in a foundation pit according to claim 1, characterized in that: A plurality of supports (6) are also distributed on the top of the enclosure structure (1).

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