Construction method of sump in high-water-level quicksand area
By using support steel plates and underwater concrete reinforcement in water collection pit construction in high-water quicksand areas, the problem of digging and collapse during construction due to instability in quicksand is solved, and safe and efficient water collection pit construction is achieved.
Patent Information
- Application Number
- CN202510092785.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-03-28
AI Technical Summary
In high-water quicksand areas, the construction of water collecting pits is prone to digging and collapse while being unstable due to the fastsand geology, resulting in construction difficulties and high safety risks.
A construction method is adopted, first inserting support steel plates around the water collection pit, and cleaning sand and welded steel plates through excavators, then lowering the box mold and pouring underwater concrete to reinforce the bottom and side walls.
This method can effectively construct water collection pits without precipitation, avoiding quicksand affecting the construction progress, and is simpler and cheaper than traditional methods, improving construction safety and labor efficiency.
Smart Images
Figure CN119711511A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of water collection pit construction, in particular to a construction method of a water collection pit in a high water level quicksand area. Background Art
[0002] In the process of building construction, it is often necessary to set up a sump to meet the construction requirements. The sump can be used to temporarily store the accumulated water that needs to be discharged. In the construction of sump in high-water-level quicksand areas, due to the strong geological fluidity and instability of quicksand, the conventional construction of sump is prone to collapse while digging, which makes the construction difficult and has great safety risks. Therefore, a construction method of sump in high-water-level quicksand areas is proposed for application in the building construction industry. Summary of the invention
[0003] The present invention aims to solve the above problems, thereby providing a construction method for a sump in a high water level quicksand area.
[0004] The present invention solves the above-mentioned problem by adopting the following technical solution: A construction method for a sump in a high-water-level quicksand area is carried out in the following steps: Step 1: Expand the sump by a certain distance according to the size of the sump, and insert several supporting steel plates at the edge of the expansion. The supporting steel plates are connected end to end and arranged around the sump; Step 2: Use an excavator to clear the sand between the supporting steel plates and weld the seams between the supporting steel plates; Step 3: Lower the box mold, which is a box body with an open top structure. The box mold is welded with steel bars and supporting steel plates around it to fix the position of the box mold; Step 4: Pour underwater concrete from the gap between the box formwork and the side wall of the supporting steel plate. The underwater concrete replaces the bottom sand and fills the side wall gap for secondary reinforcement. Step 5: Clear the sand inside the box mold and construct the sump structure.
[0005] Furthermore, the insertion depth of the supporting steel plate is 1m below the design elevation of the bottom of the sump.
[0006] Furthermore, a box formwork is welded and fabricated on-site according to the size of the sump, and serves as an outer formwork for the sump, and is used to displace the bottom sand through holes cut at the bottom.
[0007] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features: Through the construction method described in the present invention, a sump can be constructed without precipitation, thus avoiding the formation of quicksand that affects the progress of on-site construction. Compared with traditional sump construction methods, it is simpler and easier to implement, reduces material costs, and not only improves the safety performance of the sump, but also improves labor efficiency and effectively saves costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a schematic diagram of the main structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of a top view of the structure of an embodiment of the present invention; Figure 3 is a schematic diagram of a three-dimensional cross-sectional structure of an embodiment of the present invention; Marked in the figure are: supporting steel plate 1, box formwork 2, steel bars 3, underwater concrete 4. DETAILED DESCRIPTION
[0009] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.
[0010] See also Figure 1-Figure 3 , a construction method for a sump in a high water level quicksand area, is carried out according to the following steps: Step 1: Expand the sump by a certain distance according to the size of the sump, and insert several support steel plates 1 at the edge of the expansion. The support steel plates 1 are connected end to end and arranged around the sump; the expansion distance is maintained at 0.5-1m; Step 2: Use an excavator to clear the sand between the supporting steel plates, and weld the seams between the supporting steel plates; Step 3: lower the box mold 2, which is a box body with an open top structure. The box mold 2 is welded to the supporting steel plate 1 by the steel bars 3 arranged around it to fix the position of the box mold 2; Step 4: pour underwater concrete 4 from the gap between the box formwork 2 and the side wall of the supporting steel plate 1. Underwater concrete 4 uses C40 underwater concrete for the best effect. Underwater concrete 4 replaces the bottom sand and fills the side wall gap for secondary reinforcement; Step 5: Clear the sand inside the box mold 2 and construct the sump structure.
[0011] Furthermore, the insertion depth of the support steel plate 1 is 1 m below the design elevation of the bottom of the sump.
[0012] Furthermore, the box mold 2 is welded and manufactured on-site according to the size of the sump, and serves as an outer template of the sump, and is used to replace the bottom sand through the hole cut at the bottom; during the injection of underwater concrete 4, the sand between the box mold 2 and the supporting steel plate 1 is squeezed into the box mold 2 through the hole to complete the sand replacement.
[0013] Through the construction method described in the present invention, a sump can be constructed without precipitation, thus avoiding the formation of quicksand that affects the progress of on-site construction. Compared with traditional sump construction methods, it is simpler and easier to implement, reduces material costs, and not only improves the safety performance of the sump, but also improves labor efficiency and effectively saves costs.
[0014] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.
Claims
1. A construction method for a sump in a high water level quicksand area, characterized in that: Follow these steps: Step 1: Expand the sump by a certain distance according to the size of the sump, and insert several supporting steel plates at the edge of the expansion. The supporting steel plates are connected end to end and arranged around the sump; Step 2: Use an excavator to clear the sand between the supporting steel plates and weld the seams between the supporting steel plates; Step 3: Lower the box mold, which is a box body with an open top structure. The box mold is welded with steel bars and supporting steel plates around it to fix the position of the box mold; Step 4: Pour underwater concrete from the gap between the box formwork and the side wall of the supporting steel plate. The underwater concrete replaces the bottom sand and fills the side wall gap for secondary reinforcement. Step 5: Clear the sand inside the box mold and construct the sump structure.
2. The construction method of a sump in a high water level quicksand area according to claim 1, characterized in that: The insertion depth of the supporting steel plate is 1m below the design elevation of the bottom of the sump.
3. The construction method of a sump in a high water level quicksand area according to claim 1, characterized in that: The box formwork is welded and manufactured on-site according to the size of the sump and serves as the outer formwork of the sump. The holes cut at the bottom are used to replace the sand at the bottom.