Deformable silt liquefaction-resistant drainage device and using method thereof

Abstract

The invention relates to a deformable silt liquefaction-resistant drainage device. The device comprises two soft water permeable devices which are buried in a silt layer in parallel, wherein the bottoms of the soft water permeable devices are coated with a geotechnical fabric; a gravel reverse filtering layer and a water pump are arranged inside the two soft water permeable devices; the water pumpis located above the gravel reverse filtering layer; the water pump is connected with a water pumping pipe; and the water pumping pipe extends to the position above the silt layer. According to the deformable silt liquefaction-resistant drainage device and a using method thereof, the consolidation of the soil body can be accelerated; a certain soil pressure can be borne in the radial direction soas to keep a pipe well stable; the device can be vertically deformed to be coordinated with the foundation deformation; and discharging of the super-gap water pressure can be accelerated when the soil body encounters a vibration load, and thus the liquefaction resistance of the silt is improved.

Description

technical field [0001] The invention relates to a deformable silt liquefaction-resistant drainage device and a use method thereof, which can be applied to the treatment of silt foundations and silt liquefaction resistance, and belong to the technical field of civil engineering foundation treatment engineering. Background technique [0002] The traditional anti-silt liquefaction treatment methods include improving soil compactness and setting vertical and plane drainage bodies. For the new filling body of silt and silt soil, the method of increasing the compactness or the plane drainage method composed of vertical and horizontal drainage wells according to a certain vertical interval is generally adopted; for the foundation or filling of silt and silt soil For construction, vertical drainage methods such as gravel piles, compacted sand piles, liquefaction-resistant drainage rigid piles, and drainage wells are used. When relying solely on increasing the compactness to enhance...

AI Technical Summary

Problems solved by technology

When relying solely on increasing the compactness to enhance the liquefaction resistance of silt and silt soil, there are limitations in improving the liquefaction resistance due to the constraints of soil properties and site construction conditions; when relying on setting vertical and plane drainage bodies to enhance When the anti-liquefaction ability is used, due to the existence of the vertical drainage body, the deformation coordination with the foundation and the filling body cannot be realized, or the horizontal drainage body has problems such as low drainage efficiency and limited influence range

Images