软岩双连拱隧道施工模拟与力学分析  

Simulation of soft double multi-arch tunnel and mechanical analysis

作　　者：刘德平[1] 王彩勤[2] 

机构地区：[1]中交第一公路勘察设计研究院,陕西西安710075 [2]西安科技大学地质与环境学院,陕西西安710054

出　　处：《西安科技大学学报》2010年第6期672-676,共5页Journal of Xi’an University of Science and Technology

基　　金：云南省交通建设科技项目(TST2004-538133C)

摘　　要：结合某双连拱隧道实体工程,通过建立弹塑性模型,应用有限元程序对该隧道进行仿真分析,模拟其施工过程中受力性态,获得了有关软岩双连拱隧道在施工过程中围岩-支护体系的力学性态,并对三导洞方案修建双连拱隧道时围岩和结构的受力、变形规律进行了详细分析,为隧道围岩稳定性的评价提供了准确的资料,从而为软岩双连拱隧道的设计与施工提供技术指导。The tunnel construction is simulated by the program of ANSYS after building the elastic-plastic model.The stress states during the construction is simulated.The mechanical behavior of the surrounding rock-suport system of double-arch tunnel in soft rock during the construction is obtained.The rules of the stress and distortion in the surrounding rock and structure is analyzed for the double multi-arch tunnel building in the three hole.It provided accurate information for the evaluation of rock stability and for the design and construction of double multi-arch tunnel in the soft rock.

关 键 词：软岩 双连拱隧道 施工模拟 ANSYS 

分 类 号：TD315.3[矿业工程—矿井建设]