RELIABILITY ANALYSIS OF RAILWAY TUNNEL CONSTRUCTION PROCESS WITHIN SOFT AND WEAK ROCK MASS

摘要：

A formulation to compute the reliability of soft and weak rock mass, in which physical nonlinearity is taken into account, is proposed. The two dimensional finite element analysis is proposed to analyze the Jinhua Mountain railway tunnel construction process. The two dimensional analysis is performed to consider the excavation stage effect and the unloading effect on the rock mass. The unified elasto-plastic material is used to model the rock mass considering the intermediate stress effect on rock mass strength. As a case for study, the reliability analysis of Jinhua Mountain railway tunnel within soft and weak rock mass is studied using the proposed method. Computation result shows that the rock mass is in stability.

作者: Yuan HUA Taiquan ZHOU

作者单位: College of Civil Engineering, Southern Yangtze University, Jiangsu Wuxi, China,214122

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）