阳宗隧道试验段动态开挖过程的数值模拟研究  

Numerical simulation of dynamic emulation on construction process in Yangzong expressway tunnel

作　　者：张鹏勇[1] 徐林生[1] 王新平[1] 

机构地区：[1]重庆交通学院桥梁及结构工程系,重庆400074

出　　处：《重庆交通学院学报》2003年第4期7-10,共4页Journal of Chongqing Jiaotong University

摘　　要：根据昆明—石林高速公路阳宗隧道S5型支护衬砌设计优化调整方案和XK38+926断面现场监控量测数据,进行位移反分析,得到计算所需的围岩弹性模量E和侧压力系数K_0;然后运用有限元方法,对其试验洞段上下台阶开挖动态施工过程进行仿真数值模拟研究,从而反馈调整和指导施工。On the basis of S5 optimized design drawing of Ⅲsurrounding rock masses and measured data in site in Yangzong expressway tunnel, obtaining E and K0 of surrounding rock masses by back analysis; the dynamic emulation simulatation of construction process has been conducted with FEM methods, feedback controlling design is realized and the construction is controlled.

关 键 词：阳宗隧道 位移反分析 有限元仿真数值模拟 

分 类 号：U451.2[建筑科学—桥梁与隧道工程]