摘要
采用隧道工程区应力实测数据、北天山地区现代震源机制解、区域地质构造资料以及岩体物理力学参数作为物理模型边界条件和载荷,对北天山隧道工程区进行三维应力场数值模拟,获得了整个工程区特别是隧道工程重要部位岩体应力分布规律,并依据隧道区应力场模拟结果,结合地质资料进行了隧道工程稳定性分析。
In this paper,the measured in-situ stress data of the tunnel area,modern focal mechanism solutions of the North Tianshan region,regional geological structural data,as well as physical and mechanical parameters of rock mass were used as boundary and load conditions of the geological model.The three-dimensional numerical simulation was completed on stress field of the north Tianshan tunnel project area.And the rock mass stress distribution law in the whole project area,particular some important parts,was obtained.Stress data was provided for the tunnel project design.Based on the simulation results of the tunnel area stress field,the tunnel stability is analyzed.
出处
《地质力学学报》
CSCD
2012年第1期1-10,共10页
Journal of Geomechanics
基金
科技支撑项目"汶川地震断裂带科学钻探-井中科学探测"课题及"地震断裂带的应力环境
应变能的分布及其与地震关系"课题联合资助
关键词
北天山隧道
应力场
有限元
数值模拟
隧道稳定性
North Tianshan Tunnel
stress field
finite element method
numerical simulation
tunnel stability
