含水裂隙岩体本构模型及数值模型理论研究  

Theoretical Research on Constitutive Model and Numerical Model of Aquiferous Fractured Rock Mass

作　　者：王昆[1,2] 赵光明[1,3] 孟祥瑞[1] 张小波[1] 马文伟[1] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001 [2]徐州矿务集团有限公司夹河煤矿,江苏徐州221000 [3]重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆400044

出　　处：《地下空间与工程学报》2015年第4期901-908,共8页Chinese Journal of Underground Space and Engineering

基　　金：国家自然科学基金项目(51174005/51074005/51134012);教育部"新世纪优秀人才支持计划资助"项目(NCET-08-0819);安徽高校省级自然科学研究重点项目(KJ2011A085)

摘　　要：基于莫尔-库仑模型,结合含水裂隙岩体的本构关系及演化方程,在FLAC3D提供的二次开发程序接口基础上,利用VC++程序语言实现了计算过程,并编译成动态链接库文件进行加载和调用,得到了含水裂隙岩体的数值模型。通过一个简单数值模拟实验,验证程序的适用性和有效性,并得出采用莫尔-库仑模型模拟出的结果比含水裂隙岩体本构模型的结果要偏于保守。将含水裂隙岩体的本构模型应用于一实际巷道的开挖围岩稳定分析中,其计算结果与现场监测的数据较吻合,再次验证了该含水裂隙岩体数值本构模型的正确性,可用于含水裂隙岩体巷道的稳定性分析。Based on the Mohr-Coulomb model,combined with the constitutive relation and the evolution equation of the water in fractured rock,on the program interface of secondary development provided by FLAC^3D,the VC＋＋programming language was used to realize the calculation process and compiled into dynamic-link library files for loading and invoking,the numerical model of aquiferous fractured rock mass was obtained. Through a simple numerical simulation experiment,the suitability and effectiveness of the validation process,and the simulating results using the Mohr-Coulomb model were more conservative than those using aquiferous fractured rock mass constitutive model. Finally,this constitutive model was applied to stability analysis for a roadway surrounding rock in the excavation,and the calculation results were consistent with the measuring results,the numerical constitutive model of aquiferous fractured rock mass was proved to be correct again,which could be used to analyze the stability of surrounding rock of roadway.

关 键 词：本构模型 二次开发 巷道围岩 FLAC3D 

分 类 号：TU272.1[建筑科学—建筑设计及理论]