华盛顿地铁福特—图特站的仿真反分析

The Simulation Back Analysis of Washington Subway's Fort-Totten Station

在华盛顿地铁的修建过程中，应用了昂贵的实测系统，对浅埋隧道在分期开挖、支护的各个不同阶段进行了全面细致的实测。本文根据该工程的特殊情况，提出了不同于传统反分析的仿真反推分析思路与方法，得出的岩土力学参数对后续开挖、支护施工与设计具有很重要的依据作用。

in the course of Washington Subway construction, an expensive measurement systemis employed to carry out an overall and detailed field measurement of excavation in stages, support and protection in different sections in shallow buried tunnel. Based on the specific conditionsof this engineering, this paper puts forward the thinking and method of simulation back inferenceanalysis which is'different from the traditional back analysis whereby obtaining the geoengineering mechanics parameters which will play an important and basic role in the follow-up excavation, supporting and protecting construction and design of the tunnel.