摘要
从平面应变问题的基本方程出发,导出了巷道弹塑性变形的位移理论解,采用莫尔-库仑屈服准则分析了轴对称软岩巷道的变形规律,分析了巷道围岩与支护结构的相互作用,并通过选用合理的支护结构,采用高性能混凝土作为支护材料,可使支护体系具有更高的强度和耐久性。
Deformation of the axisyrnmetrical tunnel in rock masa is studied by using the Mohr-Coulomb yield criterion. A theoretic solution of elastoplastic deformation for the tunnel is derived from the fundamental equations of the plane atrain, elastoplastic problem. The interaction between tunnel surrounding rock and supporting atructure has been deeply analyzed, and the higher strength and durability of supporting structure made by aelecting reasonable supporting structure and adopting high strength concrete as material has been proved.
出处
《化工矿物与加工》
CAS
北大核心
2008年第3期26-28,共3页
Industrial Minerals & Processing
基金
河北省科技攻关计划项目(No.03213810)
河北省教育厅科研项目(No.2004308)。
关键词
围岩
支护结构
弹塑性分析
高性能混凝土
tunnel aurrounding rock
supporting structure
elastic-plastic analysis
reactive power concrete.
