Construction method of pipe gallery by shielding before well arrangement

Abstract

The invention relates to a construction method of a pipe gallery by shielding before well arrangement. The construction method comprises the following steps of using a shield machine to carry out tunneling construction along a design route of the pipe gallery; assembling duct pieces in a tunnel formed by tunneling; laying craft wells at intervals along the design route of the pipe gallery and constructing supporting piles, perpendicular to the two sides of the design route of the pipe gallery, at the outer peripheries of the craft wells; cutting the constructed supporting piles and tunneling through the craft wells when the shield machine tunneling construction is applied to the craft wells, and assembling the duct pieces at the craft wells in the tunnel; constructing retaining piles, parallel to the two sides of the design route of the pipe gallery, at the outer peripheries of the craft wells, wherein the retaining piles and the supporting piles are enclosed at the outer peripheries of the craft wells; and constructing the craft wells and removing the layers of the duct pieces in the craft wells in the construction process. According to the construction method of the pipe galleryby shielding before well arrangement, the problems that the craft wells are affected by pipeline relocation and traffic guidance and reform and the construction cannot be completed when the shield machine arrives are solved.

Description

technical field [0001] The invention relates to the field of pipe-jacking construction by the pipe-curtain underground excavation method, in particular to a construction method of a shield pipe gallery first followed by a well. Background technique [0002] The urban underground comprehensive pipe gallery is a new type of urban municipal management infrastructure and one of the important symbols of modernization. It plays a good demonstration and promotion role in modernizing the urban environment and reducing repeated excavation of urban roads. The construction of underground comprehensive pipe corridors can meet the needs of intensive urban development and comprehensive utilization of space, expand urban development space, and build an efficient operation, ecologically low-carbon urban support system; effectively and intensively use the space under the road to save land resources. [0003] At present, the construction method of the comprehensive pipe gallery mainly adopts...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art, provide a construction method of the shield tunnel first and then the well, and solve the problem that the process well cannot be easily produced in the existing construction method of the shield tunnel tunnel. Problems that affect the progress of construction due to the completion of construction ahead of schedule

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