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A platform for research: civil engineering, architecture and urbanism
Miniature pumping and draining device for underground water of narrow foundation pit and construction method of device
The invention discloses a miniature pumping and draining device for underground water of a narrow foundation pit and a construction method of the device. The device comprises an outer drill pipe, an inner drill pipe, a drill pipe adapter, an inner drill pipe puller, a drainage adapter, a drainage hose and a water storage and pumping device. The construction method includes the following steps thatthe drill pipes are connected with a handheld drilling machine through the drill pipe adapter, and the handheld drilling machine is operated to drill the outer drill pipe and the inner drill pipe into the pit wall section by section at the water seepage point on the pit wall of the foundation pit; then the inner drill pipe is drawn out, after soil is discharged, the inner drill pipe is coated with geotechnical cloth to be inserted into the outer drill pipe, the drill pipe is connected with one end of the drainage hose through the drainage adapter, and the other end of the drainage hose is connected with a water tank of the water storage and pumping device mounted on one side of a protective wall, which is not affected by water seepage, of the foundation pit. According to the device and the method, the technical problems about drilling of drainage holes in the pit wall of the foundation pit which is relatively rich in underground water and narrow in space are solved, and the technicalproblems that drainage of the foundation pit is limited by the geometric dimensions of the foundation pit as well as the power, the lift and the like of machines, the pumping and draining difficulty for accumulated water at the pit bottom is large and the like are solved.
本发明公开了一种狭窄基坑地下水微型抽排装置及其施工方法，其装置包括外钻杆、内钻杆、钻杆转接头、内钻杆拔取器、排水转接头、排水软管和蓄水抽水器，施工方法包括通过钻杆转接头钻杆与手持式钻机，操作手持式钻机在基坑坑壁上渗水点处，将外钻杆和内钻杆逐段钻进坑壁；然后将内钻杆抽出排出土体后再裹上土工布插入外钻杆中，并通过排水转接头将钻杆与排水软管的一端连接，将排水软管的另一端与安装在基坑未受渗水影响护壁的一侧的蓄水抽水器的水箱连接。本发明解决了在地下水较丰富、且空间狭窄的基坑的坑壁上钻排水孔存在的技术难题，并解决了基坑排水受基坑几何尺寸与机具功率、扬程等限制，坑底积水抽排难度大等技术问题。
Miniature pumping and draining device for underground water of narrow foundation pit and construction method of device
The invention discloses a miniature pumping and draining device for underground water of a narrow foundation pit and a construction method of the device. The device comprises an outer drill pipe, an inner drill pipe, a drill pipe adapter, an inner drill pipe puller, a drainage adapter, a drainage hose and a water storage and pumping device. The construction method includes the following steps thatthe drill pipes are connected with a handheld drilling machine through the drill pipe adapter, and the handheld drilling machine is operated to drill the outer drill pipe and the inner drill pipe into the pit wall section by section at the water seepage point on the pit wall of the foundation pit; then the inner drill pipe is drawn out, after soil is discharged, the inner drill pipe is coated with geotechnical cloth to be inserted into the outer drill pipe, the drill pipe is connected with one end of the drainage hose through the drainage adapter, and the other end of the drainage hose is connected with a water tank of the water storage and pumping device mounted on one side of a protective wall, which is not affected by water seepage, of the foundation pit. According to the device and the method, the technical problems about drilling of drainage holes in the pit wall of the foundation pit which is relatively rich in underground water and narrow in space are solved, and the technicalproblems that drainage of the foundation pit is limited by the geometric dimensions of the foundation pit as well as the power, the lift and the like of machines, the pumping and draining difficulty for accumulated water at the pit bottom is large and the like are solved.
本发明公开了一种狭窄基坑地下水微型抽排装置及其施工方法，其装置包括外钻杆、内钻杆、钻杆转接头、内钻杆拔取器、排水转接头、排水软管和蓄水抽水器，施工方法包括通过钻杆转接头钻杆与手持式钻机，操作手持式钻机在基坑坑壁上渗水点处，将外钻杆和内钻杆逐段钻进坑壁；然后将内钻杆抽出排出土体后再裹上土工布插入外钻杆中，并通过排水转接头将钻杆与排水软管的一端连接，将排水软管的另一端与安装在基坑未受渗水影响护壁的一侧的蓄水抽水器的水箱连接。本发明解决了在地下水较丰富、且空间狭窄的基坑的坑壁上钻排水孔存在的技术难题，并解决了基坑排水受基坑几何尺寸与机具功率、扬程等限制，坑底积水抽排难度大等技术问题。
Miniature pumping and draining device for underground water of narrow foundation pit and construction method of device
狭窄基坑地下水微型抽排装置及其施工方法
LI KE (author) / LIU DONGSHENG (author) / WANG KAI (author) / YI PENGYING (author)
2020-09-04
Patent
Electronic Resource
Chinese
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