某平原水库坝顶裂缝成因分析及评价  

Cause Analysis and Evaluation of the Crack on the Crest of a Plain Reservoir

作　　者：张振宇[1] 安凯军[2] ZHANG Zhenyu;AN Kaijun(Shandong Yellow River Service Center,Shandong Yellow River Administration Bureau,Jinan,Shandong 250011,China;Water Resources Research Institute of Shandong Province,Jinan,Shandong 250014,China)

机构地区：[1]山东黄河河务局山东黄河服务中心,山东济南250011 [2]山东省水利科学研究院,山东济南250014

出　　处：《山东水利》2024年第11期44-47,共4页Shandong Water Resources

摘　　要：某平原水库增容后围坝出现不均匀沉降,导致局部坝段坝顶出现不同程度的裂缝,影响大坝正常运行。为评价裂缝是否影响水库运行安全,通过现场检查和地质勘察,并查阅设计、施工及运行管理资料,对坝顶裂缝产生的原因进行分析和评价。结果表明:局部坝段坝顶裂缝主要是由于坝基不均匀沉降和坝体局部密实度较差引起的,虽然围坝现状未出现短期急速下沉,但不排除裂缝继续发展危及坝坡稳定和破坏防渗完整性的风险,建议对围坝进行灌浆加固。The uneven settlement of the dam after the capacity expansion of a plain reservoir leads to different degrees of cracks on the crest of the dam section,which affects the normal operation of the dam.In order to evaluate whether the crack affects the operation safety of the reservoir,the causes of the crack on the crest of the dam are analyzed and evaluated through on-site inspection,geological investigation,and consulting the design,construction and operation management data.The results show that the cracks at the top of the dam section are mainly caused by the uneven settlement of the dam foundation and the poor density of the dam body.Although there is no short-term rapid subsidence at the current situation of the box dam,the risk that the continuous development of the cracks will endanger the stability of the dam slope and destroy the integrity of the seepage prevention.It’s suggested to do the curtain for strengthening to the box dam.

关 键 词：平原水库 围坝 裂缝 不均匀沉降 

分 类 号：TV697[水利工程—水利水电工程]