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 accompanying drawing.
[0011] Such as figure 1 , figure 2 As shown, this soft soil formation well-forming device is mainly composed of a hollow drill pipe 2 that is used as a well wall after multi-sections are connected to each other, a hollow drill bit 1 that is screwed with the hollow drill pipe 2 of the last section, and a filter cartridge 3. The drill pipes are clamped and connected, and the hollow drill pipes are connected to each other through pipe collars. The wall of the filter cartridge 3 is uniformly provided with filter holes 4, the aperture of the filter holes 4 is set to 5mm, and the porosity is 25%.
[0012] A sedimentation chamber is formed at the bottom of the cylinder with a height of about 50 mm without filter holes, and the sedimentation chamber is used for sedimentation of sand and soil to prevent the filter hole 4 from being blocked; Elastic snap ring 6, the inner diamete...
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