Construction method of shield and continuous cutting pile foundation for penetrating through residential building group

Abstract

The invention relates to a construction method of a shield and continuous cutting pile foundation for penetrating through a residential building group. The construction method comprises the following steps that the first step, house investigation and investigation of pipelines around houses are conducted; the second step, pile cutting construction numerical simulation is conducted; the third step, an automatic monitoring instrument is installed; the fourth step, pre-grouting reinforcement is conducted, wherein the reinforcement range includes buildings, the pipelines and planning tool changing points, and the reinforcement mode is a retrograde grouting mode; the fifth step, shutdown and inspection of a shield machine are conducted before pile cutting is conducted; the sixth step, pile cutting tunneling and pipe sheet splicing are conducted; the seventh step, grout supplement and emergent reinforcement are conducted. According to the construction method, pile cutting and penetration can be directly conducted without the operation that the existing buildings are demolished, the idea of energy conservation and environmental protection is met, the investment cost can be substantially reduced, the negative influence caused by demolition is reduced, and the number of the constraint factors of metro line selection is reduced; in addition, shield construction parameters and grouting parameters can be guided according to data which are fed back in real time through automatic monitoring, a comprehensive dynamic construction management system is implemented, the engineering risk is controllable, and the construction cost can be substantially reduced.

Description

technical field [0001] The invention relates to a construction method for shield continuous cutting pile foundations passing through residential building groups. Background technique [0002] The Shield Method is a fully mechanized construction method in underground excavation construction. It propels the shield machine in the ground, and supports the surrounding rock through the shield casing and segments to prevent collapse into the tunnel. At the same time, the soil is excavated with a cutting device in front of the excavation face, transported out of the hole by an excavation machine, pushed in by a jack at the rear, and assembled with prefabricated pieces to form a mechanized construction method of the tunnel structure. [0003] At present, more and more cities are building subways in China, and the application of shield tunneling method in the construction of urban subway tunnels is also becoming more and more extensive. Due to the dense buildings in the downtown area...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a construction method for continuous shield cutting pile foundation passing through residential building groups, which aims to solve the problems that the existing construction method has a great impact on the social environment, difficulty in demolition, difficult coordination, high compensation, high risk in some processes, and long construction period

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