高海拔地区土石坝动力有限元分析  

Dynamic Finite Element Analysis of Earth-rockDams in High Altitude Areas

作　　者：白曦妤 张文贤 BAI Xiyu;ZHANG Wenxian(School of Water Conservancy and Civil Engineering,Tibet Agriculture and Animal Husbandry University,Linzhi Tibet 860000)

机构地区：[1]西藏农牧学院水利土木工程学院,西藏林芝860000

出　　处：《河南科技》2020年第2期41-45,共5页Henan Science and Technology

摘　　要：旁多水利枢纽工程位于西藏自治区林周县旁多乡,其采用的坝型是土石坝。本文采用等效线性有限元分析法,根据地震作用下旁多土石坝的地震计算结果,分析大坝峰值加速度、峰值位移、最大动剪应力、大主应力极值和小主应力极值等,最后对旁多土石坝在地震作用下的安全性进行综合评价,为西藏土石坝的抗震设计和施工等提供有效参考。The Panduo Water Conservancy Project is located in Panduo Township, Linzhou County, Tibet Autono mous Region, and its dam type is earth-rock dam. By using equivalent linear finite element analysis method, this pa per analyzed dam peak acceleration, peak displacement, maximum dynamic shear stress, extreme values of large prin cipal stress and extreme values of small principal stress based on the seismic calculation results of the Pendo earth- rock dam under the action of earthquake, and comprehensively evaluated the safety of the Panduo earth-rock dam un der the earthquake, in order to provide an effective reference for the seismic design and construction of the earth- rock dam in Tibet.

关 键 词：有限元法 地震 抗震设计 

分 类 号：TV312[水利工程—水工结构工程]