深埋隧道坚硬围岩变形特征三维数值分析  

3D numerical analysis of deep buried tunnel hard surrounding rock deformation characteristics

作　　者：苏三庆[1,2] 崔峰[1,2] 曹建涛[1,2] 高崇霖 刘宝许 王巍 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]教育部西部矿井开采及灾害防治重点实验室,陕西西安710054 [3]中交隧道工程局有限公司,北京100081

出　　处：《西安科技大学学报》2011年第3期276-280,共5页Journal of Xi’an University of Science and Technology

基　　金：教育部博士点基金(20096121110001);陕西省重点实验室项目资助(09JS018)

摘　　要：秦岭终南山公路隧道埋深大,地质环境复杂,2号竖井下洞群多次跨越既有公路与铁路隧道,结构尺寸多变,受力复杂;岩爆频发;滑坡、塌方和冒落等严重制约通风及建设效率。基于现场工程与地质特征分析,采用三维数值计算,对东线隧道和西线隧道交叉点的稳定性对比分析,为隧道及洞群优化设计提供科学的定量化依据。Qinling Zhongnanshan highway tunnel is of a deep and complex geological structure and environment,and the caverns beneath the No.2 shaft will be across pre-tunnel several times.It is of changing structure size and complex stress environment.Frequent rockburst,landslide,collapse etc.,can restrict the ventilation and construction seriously.The stability of the east-west-route-tunnel intersect was comparatively analyzed by three-dimensional numerical calculations.The research has provided scientific and quantitative basics to optimize design of tunnel groups

关 键 词：秦岭终南山公路隧道 坚硬围岩 三维数值计算 变形分析 

分 类 号：TU457[建筑科学—岩土工程]