Exploding and draining system used for processing liquefied foundation

Abstract

The invention discloses an exploding and draining system used for processing a liquefied foundation. A liquefiable soil layer is located in the liquefied foundation, and the system is characterized by comprising multiple vertical draining plates distributed at intervals, multiple exploding holes distributed at intervals and explosive and concrete which fill the exploding holes from top to bottom, the draining plates penetrate the liquefiable soil layer, and the buried depth of the explosive is located within the liquefiable soil layer. The system has the advantages that vertical draining channels are provided, the dissipation of pore water pressure can be accelerated through the instantaneous impact force generated by the explosion, the moisture of the foundation can be discharged, and the purposes of fast settling and compacting and eliminating liquidation are achieved; the construction can be greatly accelerated, the construction period is shortened, and compared with the method for processing the liquefied foundation with a pile foundation, the system is low in cost, simple to operate and good in liquefaction resistance effect; the application range is wide, and the system is applicable to general liquefied foundations.

Description

technical field [0001] The invention belongs to the technical field of foundation treatment, and in particular relates to a blasting drainage system for treating liquefied foundations. Background technique [0002] Earthquake is one of the major threats faced by human beings. It will not only cause huge casualties, but also cause deformation and damage of a large number of buildings, roads, bridges and tunnels, and underground pipelines. Liquefaction is one of the reasons that cannot be ignored. With the frequent earthquake disasters in recent years, the problem of soil liquefaction has been paid more and more attention and researched. [0003] The measures to resist liquefaction mainly include: (1) improving the particle structure of sandy soil, improving the compactness of soil and the stability of particle skeleton; (2) improving the structure of sandy soil. Chemical grouting, pile foundation treatment, etc. [0004] At present, the methods used to deal with liquefied f...

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Problems solved by technology

[0006] (1) It has a certain impact on the compaction of the soil and adjacent buildings, and the noise and vibration are large during construction.

[0007] (2) It is not very effective for the soil layer dominated by fine particles, because the permeability coefficient of fine particle soil is small, and the drainage channels are not smooth, which makes the gaps difficult to compress

[0008] (3) The depth of influence is limited and can only reach about 10 meters

[0011] (1) When the easily liquefied layer is deeply buried or thick, this method loses its meaning;

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