苏阿皮蒂水利枢纽泄洪底孔坝段应力变形分析  

Analysis of Stress and Deformation of Gravity Dam Section with Flood Discharge Bottom Outlets in Souapiti Hydro Project

作　　者：杜少磊 徐威 张婧雯[2] 罗畅 DU Shaolei;XU Wei;ZHANG Jingwen;LUO Chang(Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450003,Henan,China;Yellow River Water Resources and Hydropower Development Co.,Jiyuan 450917,Henan,China)

机构地区：[1]黄河勘测规划设计研究院有限公司,河南郑州450003 [2]黄河水利水电开发总公司,河南济源450917

出　　处：《水力发电》2020年第1期36-40,共5页Water Power

摘　　要：利用三维有限元方法,对苏阿皮蒂水利枢纽泄洪底孔坝段在竣工期和运行期进行了四种工况的数值模拟分析,得到了坝体结构的应力变形情况。由计算结果可知,竣工期在自重荷载作用下,整个坝体往上游方向发生位移,位移自下而上逐渐增大;运行期受上游水压力和地震惯性力作用,整个坝体往下游方向发生位移,位移自下而上逐渐增大;四种工况下,坝体位移分布连续,最大位移均较小,变形满足要求;竣工期和运行期的坝体结构、坝踵、坝趾应力均满足重力坝设计规范要求。The three-dimensional finite element method is used to simulate four operation conditions of the dam section with flood discharge bottom outlets in Suapiti Hydro Project during the completion period and operation period,and the stress and deformation of dam body are obtained.The calculation results show that,(a)under the action of self-weight load,the dam body moves to upstream and the displacement gradually increases from bottom to top;(b)during the operation period,the dam body moves to downstream as the upstream water pressure and the seismic inertia force,and the displacement gradually increases from bottom to top;(c)under four operation conditions,the displacement of dam body is continuous and the maximum displacement is smaller,which meets the requirements;and(d)all the stresses of dam body,dam heel and dam toe during construction and operation periods meet the requirements of gravity dam design specification.

关 键 词：泄洪底孔 有限元 应力 变形 数值分析 苏阿皮蒂水利枢纽 

分 类 号：TV131(451)[水利工程—水力学及河流动力学]