Method for processing underground continuous wall collapse holes

Abstract

The invention discloses a method for processing underground continuous wall collapse holes. the method comprises the following steps: step 1, determining positions; step 2, drilling; step 3, observingthe inner condition of the hole collapse area; step 4, step five, sixthly, cleaning soil and residues in the hole collapse area; seventhly, observing whether the soil and residues in the hole collapse area are cleaned or not; eighthly, backfilling the hole collapse area; ninthly, detecting the backfilling effect after the concrete is formed. According to the invention, the hole is drilled in thehole collapse area, and the condition of the hole collapse area is observed in the drilling hole., and the soil body in the hole collapse area is cleaned through high-pressure water, and the concreteis recycled from the drilled hole by the aid of the concrete, the problem that the continuity of the ground connecting wall is damaged and difficult to process and repair due to the fact that the surrounding loose soil body collapses in the grooving process of the underground continuous wall is overcome., the construction process is simple, the construction period is short, and the disturbance ofthe built structure is small., and the quality problem of the wall trenching construction process can be effectively treated., the construction quality of the ground connecting wall is improved, and the smooth proceeding of the ground connecting wall construction is guaranteed.

Description

Technical field [0001] The invention relates to the field of foundation pit engineering and urban rail transit, in particular to a method for processing collapsed holes in an underground continuous wall. Background technique [0002] As a transportation method with large transportation volume, fast transportation speed, low energy consumption and good comfort, the subway has become the first choice to solve the traffic congestion problem in major cities in my country. The foundation pits of subway stations are generally constructed by open-cut or cover-excavation methods. In order to prevent soil collapse and groundwater infiltration during the excavation of the foundation pit, most of the construction parties choose to use underground continuous walls to support the foundation pit. In order for the ground connecting wall to play its role of retaining soil and water interception and seepage prevention, the ground connecting wall needs to have good continuity and integrity. [0003...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, solve the problem of processing and repairing the underground diaphragm wall in the weak soil layer after the hole collapses in the construction project, and provide a method for cleaning the soil and waste residue in the area of ​​the collapsed hole of the diaphragm wall Methods

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