Enclosure water plugging device

Abstract

The utility model discloses an enclosure water plugging device which comprises a water seepage floral tube, a pressure balance tube and a water stop gate valve. One end of the water seepage floral tube is coaxially and fixedly connected with one end of the pressure balance tube, and the pressure balance tube is arranged at a leakage point of the enclosure in a penetrating manner, so that the water seepage floral tube extends to the outer side of the enclosure; the water stop gate valve is arranged at the other end of the pressure balance pipe and located on the inner side of the enclosure, and the other end of the pressure balance pipe is externally connected to the drainage structure, so that the outer side of the enclosure can be communicated with the drainage structure on the inner side of the enclosure through the water seepage floral pipe and the pressure balance pipe via the water stop gate valve. And a grouting hole is reserved in the pressure balance pipe on the inner side of the enclosure. The utility model relates to the technical field of building construction, and can solve the problem that a leakage point of a waterproof curtain in the prior art is easy to cause safety influence on a foundation pit.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a retaining water-blocking device. Background Art

[0002] During the foundation pit construction process, ensuring the safety of the foundation pit is the top priority in construction. The water-stop curtain belongs to underground engineering. Since construction workers cannot directly observe the underground construction situation during the construction process and can only rely on experience for construction, it is impossible to ensure that the water-stop of the curtain reaches 100% during the entire construction process.

[0003] There will inevitably be leakage points in the water-stop curtain, and these leakage points will be exposed during the subsequent excavation process. Over time, the leakage points will become water flow channels. Especially when encountering rainy weather, the water pressure outside the foundation pit increases with the replenishment of surface water, and the greater water flow scouring the retaining structure will cause more soil erosion and evolve into the collapse of the foundation pit, affecting the safety of the foundation pit.

[0004] At present, the conventional method for plugging the leakage points of the water-stop curtain is to drill holes at the leakage point positions and inject grout for plugging. However, under the influence of the water pressure of groundwater, the construction of plugging the leakage points is difficult, and the plugging effect is not good, unable to ensure the safety of the foundation pit. Therefore, it is necessary to provide a retaining water-blocking device that can solve the problem that the leakage points of the water-stop curtain in the prior art are likely to affect the safety of the foundation pit. Summary of the Invention

[0005] The purpose of the utility model is to provide a retaining water-blocking device that can solve the problem that the leakage points of the water-stop curtain in the prior art are likely to affect the safety of the foundation pit.

[0006] The utility model is realized as follows:

[0007] A retaining water-blocking device includes a water-permeable flower pipe, a pressure balance pipe, and a water-stop gate valve; one end of the water-permeable flower pipe is coaxially and fixedly connected to one end of the pressure balance pipe, the pressure balance pipe is arranged through the leakage point of the retaining structure, so that the water-permeable flower pipe extends to the outside of the retaining structure; the water-stop gate valve is arranged at the other end of the pressure balance pipe and is located inside the retaining structure, and the other end of the pressure balance pipe is externally connected to a drainage structure, so that the outside of the retaining structure can be communicated with the drainage structure inside the retaining structure through the water-permeable flower pipe and the pressure balance pipe via the water-stop gate valve; a grouting hole is reserved on the pressure balance pipe located inside the retaining structure.

[0008] One end of the water-permeable flower pipe is communicated with the pressure balance pipe, the other end of the water-permeable flower pipe is closed, and water-filtering holes are evenly distributed on the pipe body of the water-permeable flower pipe.

[0009] A first water-stop gasket is arranged at the connection between one end of the water-permeable flower pipe and one end of the pressure balance pipe, so that the first water-stop gasket is hermetically arranged at the outer end of the leakage point of the retaining structure.

[0010] A steel gasket is provided at the connection between one end of the water-permeable flower tube and one end of the pressure balance tube, so that the first water-stop gasket is tightly sealed against the outer end of the enclosure leakage point through the steel gasket.

[0011] A second water-stop gasket is provided on the pressure balance tube, and the second water-stop gasket is hermetically arranged at the inner end of the enclosure leakage point. The grouting hole is located on the pressure balance tube inside the second water-stop gasket.

[0012] A threaded section is formed at the other end of the pressure balance tube, so that the other end of the pressure balance tube is externally connected to a drain pipe through the threaded section.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. Since the utility model is provided with a water-permeable flower tube, a pressure balance tube and a water-stop gate valve, the water-permeable flower tube is located outside the enclosure, and the groundwater outside the enclosure can be drained into the pressure balance tube. By opening the water-stop gate valve and discharging the groundwater to the drainage structure through the drain pipe, not only can the groundwater pressure outside the enclosure be balanced, the safety and effectiveness of the grouting plugging operation be ensured, the loss of the enclosure and soil erosion be reduced, the risk of foundation pit collapse be effectively avoided, the problem of enclosure leakage be solved more quickly by the operator, the quality and efficiency of enclosure leak repair be improved, but also the centralized discharge or recycling of groundwater be facilitated.

[0015] 2. Since the utility model is provided with a water-permeable flower tube, through the uniform arrangement of the water filtering holes, the capillary action is utilized to ensure that the groundwater outside the enclosure can effectively enter the water-permeable flower tube, and the soil body can be left outside the water-permeable flower tube, reducing soil loss, thereby effectively avoiding the risk of foundation pit collapse caused by soil loss, reducing the construction cost and improving the construction safety.

[0016] 3. Since the utility model is provided with a steel gasket, a first water-stop gasket and a second water-stop gasket, the outer end and the inner end of the enclosure leakage point are blocked by the first water-stop gasket and the second water-stop gasket, and the setting of the steel gasket improves the blocking effect of the first water-stop gasket on the outer end of the enclosure leakage point under the impact of groundwater outside the enclosure. Description of the Drawings

[0017] Figure 1 It is a structural schematic diagram of the enclosure water-blocking device of the utility model.

[0018] In the figure, 1 is the water-permeable flower tube, 101 is the water filtering hole, 2 is the pressure balance tube, 201 is the threaded section, 3 is the water-stop gate valve, 4 is the steel gasket, 51 is the first water-stop gasket, 52 is the second water-stop gasket, and 6 is the grouting hole. Detailed Embodiments

[0019] The following further describes the utility model in conjunction with the drawings and specific embodiments.

[0020] Please refer to the attached Figure 1 , a retaining and water-blocking device, comprising a water-permeable flower pipe 1, a pressure balance pipe 2 and a water-stop gate valve 3; one end of the water-permeable flower pipe 1 is coaxially and fixedly connected to one end of the pressure balance pipe 2, and the pressure balance pipe 2 is arranged through the leakage point of the retaining structure, so that the water-permeable flower pipe 1 extends to the outside of the retaining structure (taking the side away from the foundation pit as the outside and the side close to the foundation pit as the inside); the water-stop gate valve 3 is arranged at the other end of the pressure balance pipe 2 and is located inside the retaining structure, and the other end of the pressure balance pipe 2 is externally connected to a drainage structure, so that the outside of the retaining structure can be communicated with the drainage structure inside the retaining structure through the water-permeable flower pipe 1 and the pressure balance pipe 2 via the water-stop gate valve 3; a grouting hole 6 is reserved on the pressure balance pipe 2 located inside the retaining structure.

[0021] The pressure balance pipe 2 is inserted into the leakage point of the retaining structure, i.e., the water-stop curtain, for plugging the leakage point, and at the same time, the water-permeable flower pipe 1 extends to the outside of the retaining structure, so that the groundwater accumulated outside the retaining structure can enter the pressure balance pipe 2 through the water-permeable flower pipe 1, which is used to reduce the groundwater pressure outside the retaining structure, so as to facilitate the operation safety and plugging effect during subsequent grouting through the grouting hole 6.

[0022] When the groundwater pressure outside the retaining structure is too high, the water-stop gate valve 3 can be opened, which can not only discharge the groundwater from the pressure balance pipe 2 into the drainage structure to balance the groundwater pressure outside the retaining structure and protect the safety of the foundation pit, but also facilitate the centralized discharge or recycling of groundwater. The water-stop gate valve 3 can adopt a conventional water valve to control the on-off of the pressure balance pipe 2, and its specifications can be adaptively selected according to actual use requirements.

[0023] Grout the pressure balance pipe 2 through the grouting hole 6, and use the grout to flow out to the outside of the leakage point of the retaining structure to ensure the plugging effect of the leakage point. Plugging the leakage point by grouting is a conventional operation in this field and will not be elaborated here.

[0024] One end of the described water-permeable flower pipe 1 is communicated with the pressure balance pipe 2, the other end of the water-permeable flower pipe 1 is closed, and filter holes 101 are evenly distributed on the pipe body of the water-permeable flower pipe 1.

[0025] Through the arrangement of the filter holes 101, while ensuring the effective entry of the groundwater outside the retaining structure into the water-permeable flower pipe 1 by capillary action, the soil body can be filtered outside the water-permeable flower pipe 1 to prevent soil erosion, which is beneficial to ensuring the safety of the foundation pit.

[0026] A first water-stop gasket 51 is provided at the connection between one end of the water-permeable flower pipe 1 and one end of the pressure balance pipe 2, so that the first water-stop gasket 51 is hermetically arranged at the outer end of the leakage point of the retaining structure.

[0027] Preferably, the first water stop gasket 51 can be made of a rubber gasket, which has a certain deformation ability and good water stop effect. It can form an effective seal at the outer end of the enclosure leakage point, preventing the groundwater outside the enclosure from entering the foundation pit through the leakage point.

[0028] A steel gasket 4 is provided at the connection between one end of the seepage water pipe 1 and one end of the pressure balance pipe 2, so that the first water stop gasket 51 is sealed and pressed against the outer end of the enclosure leakage point through the steel gasket 4.

[0029] Preferably, the steel gasket 4 can be made of cast iron. When the steel gasket 4 is attached to the outer side of the first water stop gasket 51, it can ensure a more effective seal of the first water stop gasket 51 at the outer end of the leakage point under the impact of groundwater.

[0030] A second water stop gasket 52 is provided on the pressure balance pipe 2. The second water stop gasket 52 is sealingly arranged at the inner end of the enclosure leakage point, and the grouting hole 6 is located on the pressure balance pipe 2 inside the second water stop gasket 52.

[0031] Preferably, the second water stop gasket 52 can be made of a rubber gasket, which has a certain deformation ability and good water stop effect. It can form an effective seal at the inner end of the enclosure leakage point, blocking the water from overflowing and the grouting from flowing back.

[0032] A threaded section 201 is formed at the other end of the pressure balance pipe 2, so that the other end of the pressure balance pipe 2 is externally connected to a drain pipe through the threaded section 201.

[0033] The connection between the drain pipe and the other end of the pressure balance pipe 2 is reliable through the threaded section 201, preventing the drain pipe from falling off when water is flowing.

[0034] Please refer to the appendix Figure 1 , the manufacturing method of the present utility model is as follows:

[0035] A steel pipe with uniformly drilled water filtering holes 101, i.e., the seepage water pipe 1, is used. The length of the seepage water pipe 1 can be adaptively selected according to the space outside the enclosure leakage point and the groundwater volume, and the aperture of the water filtering holes 101 can be adaptively adjusted according to the water filtering requirements.

[0036] A cast iron steel pipe with a wall thickness of 3 mm is used as the pressure balance pipe 2, and the material strength is relatively high; the length of the pressure balance pipe 2 can be adaptively selected according to the thickness of the enclosure, the installation length of the water stop valve 3, the connection length of the drain pipe, etc. One end of the seepage water pipe 1 is coaxially welded and fixed to one end of the pressure balance pipe 2 to ensure the overall structural strength. The grouting hole 6 is reserved on the pressure balance pipe 2 according to the subsequent grouting requirements.

[0037] Weld a cast iron steel plate as a steel gasket 4 at the welding position of the water seepage flower pipe 1 and the pressure balance pipe 2. Use a rubber water stop gasket as the first water stop gasket 51 and install it inside the steel gasket 4. Use a rubber water stop gasket as the second water stop gasket 52 and install the second water stop gasket 52 outside the grouting hole 6 of the pressure balance pipe 2.

[0038] Install the water stop gate valve 3 on the pressure balance pipe 2 inside the grouting hole 6. Thread the other end of the pressure balance pipe 2 to form a threaded section 201.

[0039] Please refer to the attached Figure 1 , the usage method and working principle of the present utility model are as follows:

[0040] Pass the pressure balance pipe 2 through the leakage point of the enclosure, extend the water seepage flower pipe 1 to the outside of the enclosure, and seal and block the outer end and inner end of the leakage point respectively through the first water stop gasket 51, the steel gasket 4 and the second water stop gasket 52.

[0041] The groundwater outside the enclosure enters the water seepage flower pipe 1 and the pressure balance pipe 2 through the water filtering holes 101. Socket a drain pipe at the threaded section 201, and the drain pipe is connected to a drainage structure such as a sump pit inside the foundation pit. Open the water stop gate valve 3, and the groundwater accumulated inside the water seepage flower pipe 1 and the pressure balance pipe 2 and outside the enclosure can be drained to the drainage structure, thereby balancing the groundwater pressure outside the enclosure.

[0042] After ensuring that the groundwater pressure outside the enclosure is within the safe construction range, close the water stop gate valve 3 and grout through the grouting hole 6, thereby effectively blocking the leakage point on the enclosure and ensuring the safety of the plugging construction and the safety of the foundation pit structure.

[0043] The above is only the preferred embodiment of the present utility model and is not used to limit the protection scope of the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A surrounding water-blocking device, characterized in that: It includes a water-permeable flower tube (1), a pressure balance tube (2) and a water-stop gate valve (3); one end of the water-permeable flower tube (1) is coaxially fixedly connected to one end of the pressure balance tube (2), the pressure balance tube (2) is arranged through the leakage point of the enclosure, so that the water-permeable flower tube (1) extends to the outside of the enclosure; the water-stop gate valve (3) is arranged at the other end of the pressure balance tube (2) and is located inside the enclosure, and the other end of the pressure balance tube (2) is externally connected to the drainage structure, so that the outside of the enclosure can be communicated with the drainage structure inside the enclosure through the water-permeable flower tube (1) and the pressure balance tube (2) via the water-stop gate valve (3); a grouting hole (6) is reserved on the pressure balance tube (2) located inside the enclosure.

2. The enclosing water-blocking device according to claim 1, characterized in that: One end of the described water-permeable flower tube (1) is communicated with the pressure balance tube (2), the other end of the water-permeable flower tube (1) is closed, and water-filtering holes (101) are evenly distributed on the tube body of the water-permeable flower tube (1).

3. The enclosure water blocking device according to claim 1 or 2, characterized in that: A first water-stop gasket (51) is arranged at the connection between one end of the water-permeable flower tube (1) and one end of the pressure balance tube (2), so that the first water-stop gasket (51) is hermetically arranged at the outer end of the leakage point of the enclosure.

4. The enclosing water-blocking device according to claim 3, characterized in that: A steel gasket (4) is arranged at the connection between one end of the water-permeable flower tube (1) and one end of the pressure balance tube (2), so that the first water-stop gasket (51) is hermetically pressed at the outer end of the leakage point of the enclosure through the steel gasket (4).

5. The enclosure water-blocking device according to claim 1, characterized in that: A second water-stop gasket (52) is arranged on the pressure balance tube (2), the second water-stop gasket (52) is hermetically arranged at the inner end of the leakage point of the enclosure, and the grouting hole (6) is located on the pressure balance tube (2) inside the second water-stop gasket (52).

6. The enclosing water-blocking device according to claim 1, characterized in that: A threaded section (201) is formed at the other end of the pressure balance tube (2), so that the other end of the pressure balance tube (2) is externally connected to a drain pipe through the threaded section (201).

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