Subway open cut section prefabricated box culvert overlapping structure and construction method thereof

Abstract

The invention provides a subway open cut section prefabricated box culvert overlapping structure and a construction method thereof, and relates to the field of rail transit construction. The subway open cut section prefabricated box culvert overlapping structure comprises a box culvert and precast piles distributed on the two sides of the box culvert, first anchor bars are arranged in first preformed grooves in the side faces of the precast piles, and second anchor bars are arranged in second preformed grooves in the side faces of the box culvert; and the first anchor bars extend into the second preformed grooves to be connected with box culvert structural bars, and the second anchor bars extend into the first preformed grooves to be connected with precast pile structural bars. The subwayopen cut section prefabricated box culvert overlapping structure has the advantages that factory prefabrication is conducted on an enclosure structure and a section main body structure, and after enclosure work is completed, the temporary enclosure structure can serve as a permanent structure to be combined with the box culvert; and the enclosure structure is fixedly connected with opposite side structural bars through the reserved anchor bar structure, permanent and temporary overlapping of a prefabricated square pile enclosure and a section main body is achieved, the supporting strength is met, meanwhile, the thickness of the side wall of the box culvert main body structure can be reduced, and the construction speed is increased.

Description

technical field [0001] The present disclosure relates to the field of rail transit construction, in particular to a superimposed structure of a prefabricated box culvert in an open cut section of a subway and a construction method thereof. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] With the rapid development of basic transportation, urban rail transit projects have become the leading force in the development of public transportation. In the section where the line laying method is shallow buried or super shallow buried, the open cut method is usually used for construction, and the existing construction method generally adopts cast-in-place reinforced concrete structure or prefabricated box culvert assembly structure. [0004] During the construction of cast-in-place concrete structures, it is necessary to carry out processes such as...

AI Technical Summary

Problems solved by technology

The disadvantages are that the quality of bored piles is difficult to guarantee, and the problems of diameter shrinkage and mud inclusion are prone to occur. The construction will cause certain pollution to the environment, and it will take a long time to wait for the strength of the age. Abandoned after the box culvert is completed, resulting in a serious waste of resources, which is not conducive to sustainable development

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