基于FLAC^(3D)多孔介质模型的隧洞透水衬砌数值计算分析  

Numerical Calculation Analyse of Hydraulic Tunnel Permeable Lining Based on Porous Media Model in FLAC^(3D)

作　　者：何明[1] 许晓亮[1] 韩晶[1] 

机构地区：[1]三峡大学三峡库区地质灾害教育部重点实验室,湖北宜昌443002

出　　处：《水电能源科学》2014年第5期79-82,共4页Water Resources and Power

基　　金：国家自然科学基金项目(50909092)

摘　　要：针对水工隧洞透水衬砌计算中存在的问题,利用FLAC3D中多孔介质流动模型并借助Fish语言实现了渗流应力的直接与间接耦合计算,在完成衬砌受力分析后编制正应力配筋程序获得相应的配筋量。实例应用结果表明,通过FLAC3D软件进行透水衬砌计算具有可行性,其可以实现直接与间接耦合,且间接耦合计算结果更接近实际情况,同时可知透水衬砌能有效节约配筋量。For the existing problems of hydraulic tunnel permeable lining calculating, porous media flow model in FLAC3D and Fish language are used to realize the direct and indirect coupling calculation of seepage stress. After fulfilling the lining force analysis, normal stress of reinforcement program is compiled to get the corresponding amount of reinforcement. Examples of application results show that the permeable lining calculation is feasible through FLAC3D soft ware, which can realize direct and indirect coupling, and the indirect coupling is closer to the actual situation. At the same time, we can know that the permeable lining can reduce reinforcement amount.

关 键 词：水工隧洞 透水衬砌 渗流应力耦合 多孔介质模型 FLAC3D 

分 类 号：TV672.1[水利工程—水利水电工程]