混凝土坝震害案例及抗震设计相关问题探讨  

Discussion on Seismic Damage Cases and Seismic Design of Concrete Dam

作　　者：杜小凯[1] 党林才[1] 孙保平[1] 

机构地区：[1]水电水利规划设计总院,北京市100120

出　　处：《水电与抽水蓄能》2017年第2期38-42,共5页Hydropower and Pumped Storage

摘　　要：我国大坝建设蓬勃发展,一些世界级的超高坝已经或即将在西部高地震烈度区域建设。通过典型工程震害案例分析,表明在合理设计下混凝土坝具有较强的抗震性能。但水电工程抗震研究、设计中仍存在混凝土材料动态特性、坝体与无限地基动力相互作用、坝体与库水的动力相互作用、坝体横缝动接触等科学问题需要进一步研究,相应设计规范也有待进一步修正。Many world-class high western mountainous area in China. dams have been built in the Seismic activity is frequent in the dam area because of the Indian and Eurasian plate collision. The case study typical earthquake damage to hydropower projects shows that the concrete dam has good earthquake-resistant performance under the rational design. But seismic design of concrete dam also has some problems including the material dynamic characteristic, the dynamic interaction between dam and infinite foundation, the interaction between the dam and reservoir water, the dynamic contact of transverse joints etc. Further research is needed to solve those problems and the relevant design specification needs to be revised.

关 键 词：混凝土坝 震害 动态特性 设计规范 

分 类 号：TV642[水利工程—水利水电工程]