江西建材Issue(1)：114-120,7.
水库土石坝应力变形分析
Stress and Deformation Analysis of Reservoir Earth-rock Dam
荣威 1秦宇 2张坤勇 3张艳刚4
作者信息
- 1. 中国电建集团中南勘测设计研究院有限公司,湖南 长沙 410014
- 2. 河海大学岩土工程科学研究所,江苏 南京 210024
- 3. 河海大学岩土力学与堤坝工程教育部重点实验室,江苏 南京 210024||河海大学岩土工程科学研究所,江苏 南京 210024
- 4. 太原工业学院基本建设管理部,山西 太原 030008
- 折叠
摘要
Abstract
Taking the earth-rock dam with clay core wall of a reservoir as the research object,the stress and deformation of the dam body and foundation during dam construction were studied.Duncan-zhang E-B model,E-v model and molar Coulomb model were used to compare and analyze the horizontal displacement,vertical displacement and major and minor principal stress of the dam under storage conditions and con-struction conditions.The results show that the horizontal displacement law and the distribution and value of principal stress are basically the same in the Duncan-Zhang two models,and the extreme stress is about upstream side of the middle of the dam bottom.The maximum vertical displacement occurs about 2/3 dam height above the center of the dam body.The maximum value of principal stress of the Mohl Coulomb mod-el is close to that of Duncan model,but the maximum value of horizontal and vertical displacement is about 20 times different from that of Dun-can-Zhang model.Therefore,it is unrealistic to calculate the stress-strain of earth-rock dam by Mohl Coulomb model.关键词
土石坝/应力应变/邓肯-张模型/有限元分析Key words
Earth-rock dam/Stress-strain/Duncan-zhang model/Finite element analysis分类
建筑与水利引用本文复制引用
荣威,秦宇,张坤勇,张艳刚..水库土石坝应力变形分析[J].江西建材,2025,(1):114-120,7.
