某地铁隧道工后沉降稳定性判断研究

地铁隧道建设规模不断扩大,工程建设期间经常需要判定工后沉降是否稳定,其关系到后期设备安装等工期计划。工程实践中常采用理论公式法、经验推算预测法及数值分析等方法。根据某地铁明挖隧道实例,采用上述三种方法判断研究工后沉降稳定问题,为合理安排工程筹划提供参考。

Analysis the Post Construction Settlement of a Metro Tunnel

In the metro construction practice, it is often required to predict the post construction settlement magnitude duringthe construction. A stable post construction settlement is critical for the scheduling of the equipment installation and others.Three methods are often used：theoretical method; empirical method; and numerical analysis method. This paper presents theresults of all three methods. A decision of whether a stable post construction settlement can be obtained was made based onthree settlement prediction results.