Analysis of Key Points for Underpass Construction of Existing Bridge Top Pipe
The installation of municipal pipeline networks under existing bridge structures using the top-down method has the advantages of occupying less land and stabilizing soil settlement compared to the open excavation method,and is widely used.How to provide safety protection and reduce disturbance to existing bridges during the top-down construction process,especial-ly for bridges in active service.Research has shown that reducing the range of soil disturbance,controlling the pipe jacking route,and reinforcing the soil of bridge piers during pipe jacking construction are effective ways to protect bridge structures.Therefore,an analysis of the key points for the construction of pipe jacking under existing bridges should be conducted to en-sure the safety of the existing structures;It is necessary to complete the pipe jacking construction.
万方数据
维普
