Open cut underground passage adjacent subway station supporting and reinforcing construction method

Abstract

The invention discloses an open cut underground passage adjacent subway station supporting and reinforcing construction method, and particularly relates to the technical field of underground passage construction. The method comprises the following steps of S1, preparation before construction: construction measurement datum points are determined, and a construction region is determined; S2, supporting and reinforcing: firstly, one side, parallel to a subway shield region, of an underground passage is supported through support piles and inner support, then, the upper side of the subway shield region is supported through a grouting reinforcing region and anti-floating piles, next, the underground passage and a subway station are reinforced through a cement soil retaining wall, and then, slope excavation is performed; and S3, underground passage construction and soil covering backfilling. The open cut underground passage adjacent subway station supporting and reinforcing construction method has the advantages that through the supporting and reinforcing, the construction of the underground passage by an open cut method is convenient, the construction difficulty is reduced, the construction period is shortened, the construction cost is reduced, and meanwhile, the safety in the underground passage construction process is improved.

Description

technical field [0001] The invention relates to the technical field of underground passage construction, in particular to a support and reinforcement construction method for an open-cut underground passage adjacent to a subway station. Background technique [0002] With the rapid development of my country's urban economy and the advancement of urban modernization, the available land area in cities is becoming more and more limited, and traffic congestion occurs in many cities. In order to relieve the pressure of ground traffic, in the limited urban space, improve and expand urban transportation. The excavation of urban underground space has become a major trend of modern urbanization construction, and urban subways and underground passages have become the mainstream transportation methods in underground transportation space. [0003] In related technologies, when the underground passage is close to the subway or needs to pass through the shield section of the subway, the unde...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that when using the underground excavation method or the reverse method to construct the underground passage, because of the high technical difficulty, the construction period will be long

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