公路下穿铁路既有线的沉降分析

Settlement Analysis of Highway Crossing under the Existing Railway Lines

基于武汉市中一路（发展大道-幸福大道）下穿铁路既有线工程，以沉降变形为主要控制目标，研究了顶进施工沉降变形机制，对施工过程中的路基沉降量进行了数据监测分析，针对性地提出了相应的解决方法和处理意见。通过对各个施工阶段施工工序和沉降监测分析，只有保证各工序施工、管理措施到位，各阶段的沉降得到有效控制，总沉降才能得到切实降低。

This article is based on the underpass engineering of existing railway lines in Zhongyi Road in Wuhan （ development avenue happiness avenue）, taken settlement deformation as the main control target, subsidence deformation mechanism is studied, and the displacement monitoring analysis of the roadbed settlement is carried on, corresponding solution and advice is put forward according to the factors of settlement. Through the construction process and settlement monitoring and analysis of each construction stage, only each step of the construction, management measures are in place, settlement of each period is effectively controlled, can the total settlement be effectively reduced.