基于有限元强度折减法的双孔并行隧道间距设计优化研究  

The Research on Intervals Optimization Design of the Double-hole Parallel Tunnel Engineering Based on the Strength Reduction Finite Element Method

作　　者：何朋立[1] 郭峰[1] 王剑波[2] 陈新胜[2] 

机构地区：[1]洛阳理工学院建筑工程系,河南洛阳471003 [2]青岛理工大学土木工程学院,山东青岛266520

出　　处：《洛阳工业高等专科学校学报》2007年第4期9-12,39,共5页Journal of Luoyang Technology College

基　　金：山东省教育厅重点资助项目(NO.G04D15)

摘　　要：研究双孔并行隧道双洞间距对隧道围岩稳定性的影响,根据有限元强度折减法数值模拟计算得到的不同线间距条件下的隧道安全系数和围岩及支护结构内力、位移、塑性区的结果分析,对嵩山隧道的线间距进行了优化设计,确定了最佳、最小线间距。The influence of interval between the two tunnels on the stability of tunnel surrounding rock has been studied. According to the calculated factors, stress fields, displacement field, plastic zone of the surrounding rock and the internal forces of the supporting frames by using the strength reduction finite element method under the different interval between double holes conditions, the interval of Songshan Tunnel was optimized and the most optimum and the smallest interval was found, and theoretical guidance for the design and construction of tunnel engineering is given.

关 键 词：双孔并行隧道 安全系数 隧道间距 数值模拟 有限元强度折减法 

分 类 号：U45[建筑科学—桥梁与隧道工程]