矿山巷道支护结构技术分析  

Analysis on supporting structure in tunnel in mine

作　　者：李文秀[1] 梁旭黎[2] 

机构地区：[1]河北大学,保定071002 [2]石家庄经济学院,石家庄050031

出　　处：《化工矿物与加工》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)。

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.

关 键 词：围岩 支护结构 弹塑性分析 高性能混凝土 

分 类 号：TD325[矿业工程—矿井建设] TU457[建筑科学—岩土工程]