Deep decompression anatonosis type vacuum preloading foundation treatment method

Abstract

The invention discloses a deep decompression anatonosis type vacuum preloading foundation treatment method, which comprises the following steps of: a, setting an in-soil plastic drainage plate, connecting the in-soil plastic drainage plate onto airtight sealing water pipes through seal joints, and connecting each airtight sealing water pipe onto an airtight sealing main pipe so as to form an in-soil plastic drainage plate vacuum system; b, setting a material injecting pipe on a position far away from the in-soil plastic drainage plate at a certain distance, connecting the material injection pipe with material injection branch pipes, connecting the material injection branch pipes with a material injection main pipe, and connecting the material injection main pipe with a material feeding device; and c, adopting the material feeding device to feed dehydrating agents into the material injection pipe, and pumping the plastic drainage plate. The deep decompression anatonosis type vacuum preloading foundation treatment method provided by the invention has higher drainage efficiency and larger water discharge rate.

Description

technical field [0001] The invention relates to a deep-layer decompression-increasing-infiltration-increasing vacuum preloading foundation treatment method, in particular to pumping and draining water in soil layers in sea reclamation. Background technique [0002] The dredging filling technology used in traditional sea reclamation generally includes steps 1. After laying the first geotextile, lay the plastic drainage board in the soil, connect the plastic drainage board in the soil to the airtight sealing water pipe through the sealing joint, and then install the plastic drainage board in the soil. Each sealed water pipe is connected to the airtight sealed main pipe to form a vacuum system of plastic drainage boards in the soil; 2. After the surface layer of the soil is drained, the plastic drainage boards in the deep soil layer are pumped and drained. This pumping method has a good drainage effect on the surface of the foundation, but as the vacuum degree decreases along t...

AI Technical Summary

Problems solved by technology

This pumping method has a good drainage effect on the surface of the foundation, but as the vacuum degree decreases along the depth of the drainage board, the drainage effect of the deep part of the foundation is poor, forming a carrot-shaped treatment shape, resulting in uneven bearing capacity of the foundation. Uniform, lower bearing capacity

Images