摘要
沟后水库大坝溃决后 ,曾引起了国内外坝工专家、学者的广泛关注和讨论 ,有的单位还开展了专题研究。这种研究和讨论 ,将有助于加深对该大坝溃决原因的认识和分析。从现有资料来看 ,其主要原因是面板系统及坝顶趾板缝结构与施工质量问题 :存在着漏水 ,坝体结构没有设置关键性的排水层 ,致使弱透水性的砂砾石坝体饱和 ,坝体上部首先失去静力稳定而造成大坝溃决。今天 ,我们应当从中认真吸取经验教训 。
The dam breach of Gouhou Reservoir had caused the wide concerns and discussions by the dam experts and scholars at home and abroad.Some units had conducted some special studies.Such studies and discussions would be helpful to deepen the knowledge and analysis on the breach causes of the dam . Viewed from the existing materials,the main breach causes are as follows:( 1 ) water leakage in face slab system and dam toe plate structure caused by construction quality;( 2 ) no key drainage layer in dam structure which causes the saturation of weak pervious sand gravel dam body. Thus,the upper section of the dam body firstly is out of static stability,which causes the dam breach.We should seriously learn lessons and experi- ence from it in order to avoid and reduce the reoccurrence of the similar dam breach
出处
《水力发电》
EI
北大核心
1998年第11期40-45,共6页
Water Power
关键词
溃坝
坝体结构
施工质量
漏水
排水层
沟后水库
dam breach,dam structure,construction quality,water leakage,drainage layer,static stability,Gouhou Reser- voir
