基于数值模拟与动态监测的长大公路隧道施工支护优化研究

以河北省张石高速黑石岭隧道为研究对象，采用三维仿真数值模拟方法对隧道软弱破碎围岩段支护方案进行了优化分析研究。并采用现场监控量测对优化方案进行了动态监测，结果与数值模拟结论基本吻合，可见采用数值模拟方法在隧道工程分析上是可行的。

Study on optimization of construction supporting system for large-scale highway tunnel based on numeral model simulation and dynamic monitoring

Based on a case of construction, Ensiling Tunnel in Zhangjiakou to Shijiazhuang Expressway in Hebei Province, the research on the supporting system at the soft perimeter rock was done with three-dimension numeral simulating method. The dynamic monitoring for the optimized plan was conducted through in-situ measurement. The measured data is on the whole coincident with that of simulated result, and it is obvious that the numerical simulation method is feasible in the analysis on the tunnel project.