Underground comprehensive pipe gallery river-cross section river water guide structure and construction method thereof

Abstract

The invention discloses an underground comprehensive pipe gallery river-cross section river water guide structure and a construction method thereof. The structure comprises two cofferdams, two rows ofconcrete pouring piles, two top beams and a plurality of waterflow guide pipelines. The cofferdams are arranged on riverbeds on two sides of a pipe gallery. The two rows of concrete pouring piles arearranged at the position of the pipe gallery. The top beams are arranged at the pile tops of the two rows of concrete pouring piles. The waterflow guide pipelines comprise a pair of steel structure platforms, a plurality of supporting pillars, a plurality of waterflow guide pipes and a pair of waterflow drainage pipes. The steel structure platforms are fixed to the top beams. The supporting pillars are fixed to the riverbeds. The waterflow drainage pipes are pre-embedded in the cofferdams. The waterflow guide pipelines are positioned on the steel structure platforms and the supporting pillars. The waterflow drainage pipes communicate with the waterflow guide pipes. Drainage ditches are excavated in the riverbeds among the cofferdams and the concrete pouring piles. A river is truncated bythe cofferdams, the waterflow guide pipes are erected between the cofferdams, and therefore the safe and reliable construction environment is provided for the pipe gallery; and river water guide toolscan be reused, and therefore the construction cost is lowered.

Description

technical field

[0001] The invention relates to the technical field of pipe gallery construction, in particular to a river water diversion structure and a construction method for an underground comprehensive pipe gallery across a river section. Background technique

[0002] The urban underground river crossing section is mostly the sinking section of the pipe gallery. The construction of shield tunneling and other underground excavation methods has strict requirements on working conditions, and the investment is large, which is difficult for the construction unit to accept. The traditional open excavation method involves river water closure and Diversion, especially river water diversion, if the diversion is not reasonable, a series of follow-up work such as earthwork excavation and construction of the main structure of the pipe gallery cannot be carried out. Therefore, according to the construction requirements of the pipe gallery project, the present invention proposes an u...

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