混凝土实体重力坝断面拓扑与形貌优化研究  

Study of Solid Concrete Gravity Dam Shape Based on Topology and Topography Optimization

作　　者：李景丽 王桂智 张宏伟 LI Jingli;WANG Guizhi;ZHANG Hongwei(School of Architecture,Sias University,Zhengzhou 451100,Henan,China;Jiangsu Surveying and Design Institute of Water Resources Co.,Ltd.,Yangzhou 225127,Jiangsu,China;College of Civil and Transportation Engineering,Hohai University,Nanjing 210024,Jiangsu,China;College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210024,Jiangsu,China)

机构地区：[1]郑州西亚斯学院建筑工程学院,河南郑州451100 [2]江苏省水利勘测设计研究院有限公司,江苏扬州225127 [3]河海大学土木与交通学院,江苏南京210024 [4]河海大学水利水电学院,江苏南京210024

出　　处：《水力发电》2025年第1期51-56,共6页Water Power

基　　金：中央高校基本科研业务费项目(B240201020);2022年河南省本科高校研究性教学系列项目(2022SYJXLX139);2023年度河南省本科高校研究性教学改革研究与实践项目。

摘　　要：为了获得较为经济的混凝土实体重力坝断面形式,提出了基于拓扑与形貌优化方法的混凝土实体重力坝优化设计方法。该方法以混凝土实体重力坝断面柔度最小为优化目标,对混凝土实体重力坝断面先进行拓扑优化设计,然后进行形貌优化设计,进而有效地减小混凝土实体重力坝断面面积。某混凝土实体重力坝断面优化结果表明:优化得到的断面与一般传统方法设计的断面较为接近,但断面面积有所减少,且抗滑稳定安全系数与应力等均满足相关规范要求,证明了优化设计方法的合理性;重力坝形貌优化断面优于拓扑优化断面与传统设计断面;随着形貌优化迭代次数的增加,抗滑稳定安全系数逐渐增大,坝体竖向应力与竖向位移最大值逐渐减少;重力坝形貌优化断面在坝体上部存在颈缩现象,该现象可为重力坝设计提供新的思考方向。To obtain a more economical section type of solid concrete gravity dam,a design optimization method for solid gravity dam is proposed based on topology and topography optimization.The proposed method takes the flexibility minimization of the gravity dam section as optimization objective,and the gravity dam is firstly designed based on topology optimization and then is designed based on topography optimization.The section area of gravity can be reduced effectively by the method.The section optimization results of a solid concrete gravity dam show that,(a)the optimized section is close to the section designed by the traditional method,but the section area is reduced,and the safety factor of anti-sliding stability and stress meet the requirements of relevant specifications,which shows the rationality of design optimization;(b)the section after topography optimization is superior to the section after topology optimization and the section designed by traditional method;(c)with the increase of iteration times of topography optimization,the safety factor of anti-sliding stability gradually increases,and the maximum values of vertical stress and vertical displacement of dam body gradually decrease;and(d)there is a necking phenomenon near the crest of the dam in the section optimized by topography,which will provide a new direction for solid gravity dam design.

关 键 词：混凝土重力坝 断面设计 拓扑优化 形貌优化 变密度法 

分 类 号：TV642[水利工程—水利水电工程]