Device and method for pulling out precipitation well
A technology for dewatering wells and working methods, which is applied in the field of geotechnical engineering, can solve the problems of increasing difficulty in construction, pulling out dewatering wells, pulling out, etc., and achieves the effects of easy obstacle removal, less interference, and convenient use
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[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0024] see Figure 1-Figure 4 , a device for pulling out a dewatering well, comprising a first drill pipe 7, a second drill pipe 6, a jack; the first drill pipe 7 is used to drill into the filling material layer around the well pipe 8 of the dewatering well, so that the filling material layer The soil is loose; the second drill pipe 6 extends downward from the mouth of the well pipe 8 and drills through the inner filler of the filter pipe 2. The drill bit of the second drill pipe 6 is provided with a foldable and extendable umbrella-shaped bracket 601. The umbrella-shaped When the bracket 601 is stretched, the outer diameter is equivalent to the diameter of the well pipe 8; the upper end of the second drill pipe 6 is fixedly connected to the support plate 9; The support plate 9 corresponds.
[0025] In this embodiment, there are three jacks, ...
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