基于Plaxis的土石坝有限元分析  

Finite Element Analysis of Earth-rockfill Dam Based on Plaxis Software

作　　者：杨国范[1] 李强[1] 张同军 张兴华 金丹[1] 

机构地区：[1]沈阳农业大学水利学院,辽宁沈阳110866 [2]辽宁省抚顺市清原满族自治县水务局,辽宁抚顺113000 [3]辽宁省抚顺市水利技术推广中心,辽宁抚顺113000

出　　处：《水电能源科学》2011年第9期89-92,共4页Water Resources and Power

摘　　要：以小孤家水库土石坝为例,基于Plaxis软件,采用Mohr-Coulomb模型、修正Cam-Clay模型和Hardening-Soil模型进行有限元计算分析。结果表明,Mohr-Coulomb模型、修正Cam-Clay模型和Hardening-Soil模型的孔隙水压力最大值分别为-274.47、-276.24、-277.97 kN/m2,超静孔隙水压力最大值分别为-169.76、-176.24、-193.79 kN/m2,消散速度由快到慢分别为Mohr-Coulomb模型、Hardening-Soil模型、修正Cam-Clay模型。Taking the earth-rockfill dam for an example,Mohr-Coulomb model,modified Cam-Clay model and Hardening-Soil model are used to finite element analysis of Xiaogujia dam with Plaxis software.The results show that the maximum pore water pressure with Mohr-Coulomb model,modified Cam-Clay model and Hardening-Soil model are-274.47,-276.24,-277.97 kN/m2,respectively;the maximum excess pore water pressure are-169.76、-176.24、-193.79 kN/m2,respectively;dissipation speed from fast to slow is ranked by Mohr-Coulomb model,Hardening-Soil model and modified Cam-Clay model.

关 键 词：土石坝 PLAXIS MOHR-COULOMB模型 修正Cam-Clay模型 Hardening-Soil模型 孔隙水压力 超静孔隙水压力 

分 类 号：TV641.25[水利工程—水利水电工程]