Self-balancing support structure and method of pipe screen working well

Abstract

The invention relates to a pipe curtain work well self-balancing supporting method, which comprises the following steps that a plurality of jacking pipes are constructed between side walls of two workwells so as to form a pipe curtain; force transfer elements are provided; the force transfer elements are arranged at the end parts of the jacking pipes at intervals; and the force transfer elementsand the jacking pipes are fixedly connected with the corresponding side walls, so that the two ends of the jacking pipes and the corresponding side walls are connected into a whole through the force transfer elements. The jacking pipes and the side walls are connected into the whole by the force transfer elements, so that an integral stress structure is formed; the top parts of the jacking pipes are fixedly connected with the corresponding side walls through the force transfer elements, so that the water soil pressure outside the side walls is transferred to the jacking pipes; the two ends ofthe jacking pipes are tensioned to reach a self-balancing state; and the support stability and fastness are improved. The force transfer elements do not occupy the operation construction period in thework well; the influence on subsequent pipe jacking and reinforcement construction can be avoided; and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of pipe curtain construction, in particular to a self-balancing support structure and method for a pipe curtain working well. Background technique [0002] The pipe curtain excavation method is a non-excavation construction method that has little impact on the existing traffic. It has the characteristics of flexible section form and strong stratum adaptability. The pipe curtain excavation method is to form a pipe curtain by applying group jacking pipes between two working wells or end wells, and then carry out underground excavation construction in the pipe curtain. In addition, in soft soil areas, it is often necessary to reinforce the face of the underground excavation. [0003] The existing working well support method mostly erects support between the side wall and the back to resist the water and soil pressure outside the side wall. During the construction of the pipe curtain, it is necessary to cut ou...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, to provide a self-balancing support structure and method for pipe curtain working wells, and to solve the problem that the existing support method uses supports to occupy the working space in the working well, occupy the subsequent pipe jacking and reinforcement construction work surface, which will affect the construction progress and increase the difficulty of construction

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