分离式隧道围岩支护体系稳定性研究

Study on Stability of Supporting System for Surrounding Rock of Separated Tunnel

以实际工程为例,借助"FLAC"进行隧道施工的数据模拟过程,并针对施工环节中围岩位移与时间图中的变化趋势以及其空间特征进行分析讨论,开展对于其顶部的沉降以及土体的收敛状况的实时监控,确定支护结构的稳定性,借助数值模拟以及监控两者相融合的形式,其动态设计的效果更为显著,以期为类似工程提供借鉴。

As the example of practical project, the data simulation process of tunnel construction is conducted with the help of "FLAC". This paper analyzes and discusses the variation trend of the displacement and timing chart of surrounding rock, and its spatial feature in the construction process. The real-time monitoring is conducted for the settlement of its top and the convergence state of soil body to determine the stability of supporting structure. The effect of its dynamic design is more obvious with the help of the combination of numerical simulation and monitoring in order to provide the reference for the similar projects.