钢拱架支护结构优化及变形性能仿真分析

Optimization of Steel Arch Supporting Structure and Simulation Analysis of Deformation Performance

钢拱架支护结构凭借着刚度大、施工便捷,被广泛地应用在水工隧洞支护中,同时加快施工进度、降低施工成本,对传统式钢拱架支护结构进行优化.依据那文隧洞工程地质资料,借助MIDAS/GTS有限元软件,探索优化前后两种钢拱架支护结构在拱顶下沉和拱脚内移中的支护效果.

Owing to its great rigidity and convenient construction,steel arch support structure is widely used in hydraulic tunnel support to speed up the construction progress and reduce the construction cost.Based on the engineering geological data of Nawen Hydraulic tunnel and with the help of MIDAS/GTS finite element software,to optimize the traditional steel arch support structure,the support effects of the optimized steel arch support structure with arch crown settlement and arch foot moving inward are explored in this paper.