Precipitation well sealing structure
By forming multiple anti-seepage structures inside and outside the steel pipes of the precipitation well in construction projects, the problem of groundwater leakage during closure is solved, and a more efficient sealing effect is achieved, avoiding the risk of groundwater seepage into the room.
Patent Information
- Application Number
- CN202421247504.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-03
AI Technical Summary
In existing construction projects, it is difficult to prevent the leakage path of groundwater when the precipitation well is closed, causing groundwater to surge and seep into the room.
A precipitation well sealed structure is adopted that forms multiple anti-seepage structures inside and outside the steel pipe, including clay soil filling the precipitation well filter pipe, hemp silk and paste filling the steel pipe gap, welded water stop steel plates and steel cover plates, and pouring anti-seepage micro-swelling concrete.
Through multiple anti-seepage measures, the possibility of seepage in the precipitation well is significantly reduced, the sealing effect is ensured, and the phenomenon of groundwater seeping into the room is avoided.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of precipitation construction, in particular to a precipitation well enclosing structure. Background Art
[0002] With the advancement of construction technology, infrastructure is developing in the direction of being high, large, and long, and gradually developing towards underground spaces, such as subways, underground shopping malls, underground parking lots, etc. Precipitation and waterproofing become key points in the construction process, and the sealing of pipe wells after precipitation is completed becomes a difficult point in waterproof closure.
[0003] At present, in the construction process of building projects, many projects use large-mouth pipe wells. When sealing the wells, the method mostly used is to pour dry-mixed concrete into the pipe wells. However, this method is difficult to eliminate the leakage path of groundwater. In the later stage, the upwelling of groundwater will cause groundwater to seep into the room. Utility Model Content
[0004] The utility model provides a precipitation well sealing structure, which ensures the anti-seepage effect of the precipitation well sealing point by forming multiple anti-seepage structures inside and outside the steel pipe.
[0005] The technical problem to be solved is: In the current construction process, many projects use large pipe wells. When sealing the wells, the method mostly used is to pour dry-mixed concrete into the pipe wells. However, this method is difficult to prevent the leakage path of groundwater. In the later stage, the upwelling of groundwater will cause groundwater to seep into the room.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] The utility model discloses a closed structure for a precipitation well, comprising a cushion layer, a bottom plate arranged on the cushion layer, a precipitation well filter pipe and a steel pipe, wherein the top surface of the precipitation well filter pipe is located on the bottom surface of the cushion layer, the steel pipe penetrates the bottom plate and is arranged concentrically with the precipitation well filter pipe, and the lower end of the steel pipe is inserted into the precipitation well filter pipe;
[0008] The space between the outer wall of the steel pipe and the inner wall of the filter pipe of the precipitation well is filled with hemp and grease. Two water-stopping steel plates are fixedly arranged on the outer wall of the steel pipe at intervals, and the water-stopping steel plates are cast into the bottom plate. Two steel cover plates are welded and sealed on the upper part of the steel pipe.
[0009] The filter pipe of the precipitation well is filled with clay, and the steel pipe and between the two steel cover plates are poured with anti-seepage micro-expansive concrete.
[0010] The utility model provides a drainage well closure structure. Further, one of the steel cover plates is located at the pipe mouth of the steel pipe, and the other is located 200 mm below the pipe mouth of the steel pipe.
[0011] The utility model provides a drainage well closure structure, and further, the outer diameter of the water-stop steel plate is not less than 200 mm.
[0012] The utility model provides a drainage well closure structure, and further, the water stop steel plates are respectively located below the top surface of the bottom plate and 250 mm above the bottom surface.
[0013] The utility model provides a closed structure for a precipitation well. Further, the steel pipe is inserted into the filter pipe of the precipitation well by 500 mm.
[0014] The utility model provides a closed structure for a precipitation well, further, the bottom plate steel bars close to the steel pipe are bypassed from the outer periphery of the steel pipe.
[0015] The utility model provides a closed structure for a precipitation well. Further, a supplementary steel bar is provided on the steel pipe at the interference position of the bottom plate steel bar. One end of the supplementary steel bar is welded to the steel pipe, and the other end extends into the bottom plate and is connected to the bottom plate steel bar.
[0016] The utility model provides a drainage well enclosing structure, and further, the extension length of the supplementary steel bars is not less than 1000 mm.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] The present application adopts clay to fill the precipitation well filter pipe, and utilizes the low water permeability of clay to form the first anti-seepage structure to reduce water seepage in the pipe, and fills hemp and ointment between the precipitation well filter pipe and the steel pipe to form the second anti-seepage structure to prevent water outside the pipe from seeping into the pipe from the top of the precipitation well filter pipe; welds a water-stop steel pipe outside the steel pipe to form the third anti-seepage structure to prevent water outside the pipe from seeping out along the wall of the steel pipe; finally, pours anti-seepage micro-expansive concrete inside the steel pipe and welds a steel cover plate to seal to form the fourth anti-seepage structure to further reduce the possibility of water seepage in the pipe, and through multiple anti-seepage measures, ensures the sealing effect of the precipitation well and avoids the occurrence of water seepage.
[0019] The utility model will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the utility model.
[0021] Reference numerals:
[0022] 1. Cushion layer; 2. Bottom plate; 3. Dewatering well filter pipe; 4. Steel pipe; 5. Hemp fiber and ointment; 6. Steel cover plate; 7. Clay; 8. Anti-seepage micro-expansive concrete; 9. Water-stop steel plate. DETAILED DESCRIPTION
[0023] like Figure 1As shown, the utility model is a closed structure for a precipitation well, comprising a cushion layer 1, a bottom plate 2, a precipitation well filter pipe 3 and a steel pipe 4. The bottom plate 2 is cast on the cushion layer 1, the top surface of the precipitation well filter pipe 3 is located on the bottom surface of the cushion layer 1, the steel pipe 4 penetrates the bottom plate 2 and is coaxially arranged with the precipitation well filter pipe 3, the lower end of the steel pipe 4 is inserted into the precipitation well filter pipe 3, and the insertion length is 500mm. Hemp silk and ointment 5 are filled between the outer wall of the steel pipe 4 and the inner wall of the precipitation well filter pipe 3 as a sealing arrangement. Two waterstop steel plates 9 are welded on the outer peripheral wall of the steel pipe 4 at intervals, and the waterstop steel plate 9 is cast in the bottom plate 2 when pouring concrete, wherein the outer diameter of the waterstop steel plate 9 is not less than 200mm to ensure the waterstop performance of the waterstop steel plate 9, and the waterstop steel plates 9 are respectively located below the top surface of the bottom plate 2 and 250mm above the bottom surface.
[0024] Two steel cover plates 6 are welded and sealed on the upper part of the steel pipe 4, one of the steel cover plates 6 is located at the pipe mouth of the steel pipe 4, and the other is located 200 mm below the pipe mouth of the steel pipe 4. The two steel cover plates 6 form two waterproof sealing structures, and the waterproof sealing effect is better.
[0025] The filter pipe 3 of the precipitation well is filled with clay 7, and the steel pipe 4 and between the two steel cover plates 6 are poured with anti-seepage micro-expanding concrete 8. On the one hand, it serves as a filling material, and on the other hand, the anti-seepage micro-expanding concrete 8 plays an anti-seepage and waterproof role, further improving the sealing effect of the closed part of the precipitation well and avoiding water seepage.
[0026] In addition, when the steel bars of the bottom plate 2 interfere with the steel pipe 4, the interfering steel bars bypass the outer periphery of the steel pipe 4, and supplementary steel bars are provided at the interference position of the steel bars of the bottom plate 2. One end of the supplementary steel bars is welded to the steel pipe 4, and the other end extends into the bottom plate 2 and is welded and fixed to the steel bars of the bottom plate 2. The length of the supplementary steel bars extending to the bottom plate 2 is not less than 1000mm. On the one hand, the interference position is reinforced, and on the other hand, the steel pipe 4 is limited and fixed to ensure the fixing effect of the steel pipe 4.
[0027] The present application adopts clay 7 to fill the precipitation well filter pipe 3, and utilizes the low permeability of clay 7 to form a first anti-seepage structure to reduce water seepage in the pipe, and fills hemp and ointment 5 between the precipitation well filter pipe 3 and the steel pipe 4 to form a second anti-seepage structure to prevent water outside the pipe from seeping into the pipe from the top of the precipitation well filter pipe 3; welds a water-stop steel pipe 4 outside the steel pipe 4 to form a third anti-seepage structure to prevent water outside the pipe from seeping out along the wall of the steel pipe 4; finally, pours anti-seepage micro-expansive concrete 8 inside the steel pipe 4 and welds the steel cover plate 6 to seal to form a fourth anti-seepage structure to further reduce the possibility of water seepage in the pipe, and through multiple anti-seepage measures, ensures the sealing effect of the precipitation well and avoids the occurrence of water seepage.
[0028] The construction steps are as follows:
[0029] Before pouring concrete of the base plate 2, the precipitation well filter pipe 3 is buried with clay 7, and the filter passing through the base plate 2 is replaced with a steel pipe 4 of the same specification. Two water-stop steel plates 9 are welded to the outer wall of the steel pipe 4. The weld should be full and without gaps. The outer diameter of the water-stop steel plate 9 is not less than 200 mm. The steel pipe 4 is installed, and additional steel bars are welded. Hemp silk and grease 5 are filled between the precipitation well filter pipe 3 and the steel pipe 4 to seal. First, pour the anti-seepage micro-expansive concrete 8 in the steel pipe 4, weld the steel cover plate 6 and pour the anti-seepage micro-expansive concrete 8 between the steel cover plates 6. After completion, use the micro-expansive concrete to smooth the reserved holes on the surface of the base plate 2.
[0030] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.
Claims
1. A precipitation well closure structure, characterized in that: It comprises a cushion layer (1), a bottom plate (2) arranged on the cushion layer (1), a drainage well filter pipe (3) and a steel pipe (4), wherein the top surface of the drainage well filter pipe (3) is located on the bottom surface of the cushion layer (1), the steel pipe (4) penetrates the bottom plate (2) and is arranged concentrically with the drainage well filter pipe (3), and the lower end of the steel pipe (4) is inserted into the drainage well filter pipe (3); The space between the outer wall of the steel pipe (4) and the inner wall of the drainage well filter pipe (3) is filled with hemp and grease (5); two water-stopping steel plates (9) are fixedly arranged on the outer wall of the steel pipe (4) at intervals, and the water-stopping steel plates (9) are cast into the bottom plate (2); two steel cover plates (6) are welded and sealed on the upper part of the steel pipe (4); The precipitation well filter pipe (3) is filled with clay (7), and the steel pipe (4) and between the two steel cover plates (6) are poured with anti-seepage micro-expansion concrete (8); The bottom plate (2) steel bars near the steel pipe (4) are bypassed from the outer periphery of the steel pipe (4), and supplementary steel bars are provided on the steel pipe (4) at the position where the bottom plate (2) steel bars interfere. One end of the supplementary steel bars is welded to the steel pipe (4), and the other end extends into the bottom plate (2) and is connected to the bottom plate (2) steel bars; the extension length of the supplementary steel bars is not less than 1000 mm.
2. A drainage well closure structure according to claim 1, characterized in that: One of the steel cover plates (6) is located at the pipe mouth of the steel pipe (4), and the other is located 200 mm below the pipe mouth of the steel pipe (4).
3. A drainage well closure structure according to claim 1, characterized in that: The outer diameter of the water-stop steel plate (9) is not less than 200 mm.
4. A drainage well closure structure according to claim 1, characterized in that: The water stop steel plates (9) are respectively located below the top surface of the bottom plate (2) and 250 mm above the bottom surface.
5. The enclosed structure of a precipitation well according to claim 1, characterized in that: The steel pipe (4) is inserted into the precipitation well filter pipe (3) by 500 mm.