重力坝在两种溃决方式下的数值模拟研究  

Numerical Simulation of Gravity Dam under Different Failure Modes

作　　者：柳滔 胡文兵 伍学文 胡海松[1] 张杨 Liu Tao;Hu Wenbing;Wu Xuewen;Hu Haisong;Zhang Yang(].College of Hydraulic ＆ Environmental Engineering,China Three Gorges Univ.,Yichang 443002,Chin;Hubei Energy Group I.ishui Co.,Ltd.,Wuhan 430077,China)

机构地区：[1]三峡大学水利与环境学院,湖北宜昌443002 [2]湖北能源集团凄水水电有限公司,武汉430077

出　　处：《三峡大学学报（自然科学版）》2018年第5期7-10,共4页Journal of China Three Gorges University：Natural Sciences

基　　金：水利部公益性行业科研专项项目(201401027)

摘　　要：研究大坝的溃决方式一直是一项重要工作,也是我们逐渐掌握大坝溃决机理的必要手段.本文在总结前人工作的基础上假设了漫顶导致的两种溃决方式,即滑移溃决和翻倒溃决.通过对某实际水库的数值模拟,研究了两种溃决方式的差异以及下游水深对溃决的影响.结果表明:滑移溃决比翻倒溃决产生的危害更大,下游水深的顶托作用会减小溃坝的危害.It is always an important work to study the failure mode and the path of collapse of the gravity dam. Based on the summary of previous research works, this article assumes two kinds of failure modes caused by overhanging, i.e., sliding failure and overturned failure. Through the numerical simulation of a real reservoir, the difference between the two kinds of failure modes and the impact of the downstream water depth on the failure are studied. Some conclusions are drawn as follows. The sliding failure is more harmful than the overturned failure; and the jacking up effect of water depth in downstream will reduce the damage of dam failure.

关 键 词：重力坝 数值模拟 溃决 下游水深 

分 类 号：TV642.3[水利工程—水利水电工程]