Research on Construction Technology of Large-diameter Shield Tunneling Under-passing Existing Subway Stations
With the continuous development of underground space development in urban areas in our country,the construction of new small-diameter tunnel projects passing under existing buildings is becoming increasingly common.Several large central enterprises have accumulated rich construction experience and mature construction technologies in this area.However,the technology for crossing existing buildings with large-diameter shield tunneling is still immature,and improper construction techniques during the process can easily lead to safety issues.This article takes the case of the Shenzhen Line 16 Co-built Utility Tunnel's large-diameter tunnel passing under the Shenzhen Metro Line 16 Huilongpu Station as an example.Through means such as advanced geological forecasting,practical and feasible solutions are proposed based on the forecasted conditions,effectively addressing the deformations caused by shield tunnel excavation,ensuring excavation face stability,and the safety of the existing subway station,providing experience for similar projects.
large diameter shield tunnelingthroughadvance groutingboring parameter
万方数据
维普
