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利用数值模拟手段,研究车站之间换乘通道施工的稳定性控制技术。研究结果表明:换乘通道施工过程中沉降控制的关键是前半部分弧形的开挖过程;采用两台阶法开挖掌子面,应留核心土,严格控制开挖进尺,可保证换乘通道施工中的结构安全,并满足地层的变形标准。
By means of numerical simulation, the stability control technology of transfer channel construction between stations is studied. The results show that the key of settlement control during the construction of transfer channel is the arcuate excavation process in the first half. The excavation of the face with two steps should keep the core soil and strictly control the excavation footage to ensure the transfer channel The structural safety during construction and to meet the strata deformation standards.