期刊论文

OPTIMUM ANALYSIS ON THE CONSTRUCTION PROCESS FOR JOINT ARCH TUNNELS IN PARTIAL PRESSURE

中文

岩石力学与工程学报

Chinese Journal of Rock Mechanics and Engineering

1000-6915

2002

21

5

679-683

10.3321/j.issn:1000-6915.2002.05.016

本校为第一机构

采用ANSYS V5.61版有限元分析程序对云南元磨高速公路桥头隧道采用的施工过程进行了二维有限元分折.其中模拟了3种开挖顺序,获得了偏压连拱隧道在采用不同开挖顺序施工时各阶段围岩的应力、应变状态、地表沉降以及隧道支护结构中的内力变化情况,通过对比、分析,并和现场量测资料相比较,得出一些有益的结论,为云南元磨高速公路连拱隧道采用的施工方法提供了科学依据与技术指导.

The construction process of joint arch tunnels of Yuan-Mo expressway is simulated with FEM program ANSYS V5. 61. The stress state of surrounding rocks, ground settlement and internal forces of tunnel support structure during each period of construction are obtained by 2D computation. The calculated results are analyzed and compared with the measured data in site. The analysis results provide a scientific basis and technical guidance for the construc...