土坝死水位下运行易发险情及对策探讨  

Discussion on operation frequent risk situation and countermeasures under earth dam dead water level

作　　者：魏恒志 王顺利 李二顺 WEI Hengzhi;WANG Shunli;LI Ershun(Henan Baiguishan Reservoir Authority,Pingdingshan 467001,China)

机构地区：[1]河南省白龟山水库管理局,河南平顶山467001

出　　处：《水利建设与管理》2018年第3期86-89,共4页Water Conservancy Construction and Management

摘　　要：黏土失水形成干缩裂缝是普遍存在的自然现象,水库土坝迎水坡都有护坡进行防护处理,死水位以下通常被水淹没而没有工程防护措施。针对白龟山水库启用死库容应急供水后,土坝表面出现干缩裂缝的现象,分析裂缝产生的机理和易发险情,通过对土坝的坝体表面局部温度、湿度等调整来控制干缩裂缝发展,并对抢护措施进行尝试性探索,实践证明应对方案可行。Dry shrinkage crack due to clay water loss is a common natural phenomenon.Reservoir earth dam upstream batter is equipped with revetment for protection treatment.The area below dead water level is usually flooded with water,and there is no engineering protection measure.Dead reservoir capacity emergency water supply is started in Baiguishan Reservoir.The earth dam surface ha dry crack phenomena.The crack generation mechanism and frequent risk situation are analyzed.The dry crack development is controlled through adjusting earth dam surface local temperature,humidity,etc.,thereby carrying out tentative exploration on emergency protection measures.Practice proves that the plan is feasible.

关 键 词：白龟山水库 死水位 应急供水 干缩裂缝 抢护措施 

分 类 号：TV697.1[水利工程—水利水电工程]