Underpinning protection system for top socket pipeline in underpass construction and construction method

Abstract

The invention discloses an underpinning protection system for a top socket pipeline in undercrossing construction and a construction method. The underpinning protection system comprises two first beam bodies which are oppositely arranged, at least two cast-in-place piles, at least two cast-in-place piles beam bodies, a plurality of second beam bodies and a supporting brackets, the first beam bodies are located on the lower side of the socket pipeline and are consistent with the socket pipeline in extension direction; distance between the two first beam bodies is greater than the diameter of the socket pipeline; the at least two cast-in-place piles are used for supporting the first beam body, and the cast-in-place piles are arranged at intervals in the extension direction of the socket pipeline; the second beam bodies are arranged in parallel, and the two ends of each second beam body are connected with the first beam bodies respectively; the supporting bracket is located on the second beam body and used for supporting the socket pipeline, and an arc-shaped groove matched with the outer wall of the socket pipeline is formed in the upper surface of the supporting bracket. The underpinning protection system solves the problem that normal use of the socket pipeline cannot be ensured due to the fact that disturbance on the socket pipeline is too large when the existing socket pipeline penetrates through the lower portion of a traditional newly-built box culvert.

Description

technical field [0001] The invention relates to the technical field of municipal underground pipeline construction, in particular to an underpinning protection for a newly-built box culvert passing under an existing socket pipeline in operation. Background technique [0002] Municipal professional main pipes are closely related to the life of urban residents, and usually cannot be relocated without special circumstances. In particular, the professional main pipes in some areas are single-section reinforced concrete socket pipes. When the new box culvert needs to pass through the socket pipe, it is necessary to take special protection measures for the existing socket pipe to avoid affecting the normal use of the socket pipe during the construction of the box culvert. [0003] In the prior art, when the box culvert passes through the existing socket pipe, the protection construction methods mainly include open-cut suspension method, shallow buried and underground excavation m...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that when the traditional newly-built box culvert passes through the existing socket pipeline, the disturbance to the socket pipeline is too large to ensure the socket Problems with the normal use of the pipeline

Images