Quick well formation device in soft soil layer
A kind of soil layer and rapid technology, applied in the direction of drilling equipment, earth cube drilling, wellbore/well components, etc., can solve the problems of wasting time, manpower and material resources, and the influence of groundwater sample component content, so as to improve work efficiency and avoid well The effect of wall collapse accidents and saving manpower and material resources
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[0010] The present invention will be further described below in conjunction with the drawings.
[0011] Such as figure 1 , figure 2 As shown, this soft soil formation well device is mainly composed of a hollow drill pipe 2, a hollow drill bit 1 screwed to the end hollow drill pipe 2 and a filter cartridge 3, which are connected to each other to form a well. The drill rods are clamped and connected, and the hollow drill rods are connected to each other through pipe clamps. The wall of the filter cartridge 3 is uniformly provided with filter holes 4, the aperture of the filter hole 4 is set to 5mm, and the porosity is 25%. The filter hole 4 is opened on the wall of the filter cartridge 3 at the bottom of the filter cartridge 3 and more than 50mm.
[0012] A sedimentation chamber is formed at the bottom of a cylinder with a height of about 50 mm without filter holes. The sedimentation chamber is used to precipitate sand to prevent clogging the filter holes 4; the top of the filter c...
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