沙牌水电站工程震损特点分析  

Seismic Damage Analysis of Shapai Hydropower Station

作　　者：陈秋华[1] 

机构地区：[1]中国水电顾问集团成都勘测设计研究院,四川成都610072

出　　处：《水力发电》2009年第5期15-17,48,共4页Water Power

摘　　要："5.12"汶川大地震使震区的水电站工程遭受了不同程度的破坏,为了解和掌握沙牌水电站震后的安全状况,总结高拱坝的震损特点和抗震经验,做好沙牌水电站的震后恢复建设,开展了沙牌水电站的震损调查及震损特点分析。通过分析认为,大体积混凝土结构的震损现象很少,拱坝表现出了较强的超载能力和抗震能力,经处理后的坝肩抗力体及工程边坡震损较少,地下建筑物的震损轻微,地震次生灾害对建筑物的破坏有较大影响,以梁、柱、墙结构为主的附属建筑物震损较重。这些震损特点和经验将对地震区水电站工程及高拱坝工程的建设带来有益的启示。arch dam; buildings ; seismic damage ; Shapai Hydropower Station Abstract： ＂5.12＂ Wenchuan Earthquake caused many hydropower stations in seismic area being destroyed to different degree, in order to understand and master the safety status quos of Shapai Hydropower Station after earthquake occurrence and to summarize the seismic damage characteristics and anti-earthquake experience. In order to do well the rehabilitation construction of Shapai Hydropower Station after earthquake occurrence, it is necessary to investigate and analyze the seismic damage of Shapai Hydropower Station. It is concluded by analysis and study that the seismic damage of mass concrete is little; arch dam have better over-loading and earthquake resistance capability; the seismic damage of dam abutment and side slope is small after they was reinforced; the seismic damage of underground buildings is slight; the secondary disasters of earthquake have an great impact on the destroy of buildings, and the accessory buildings which are mostly made up of beams, columns and walls have more destruction after earthquake. These characteristics and experience would be great helpful to the construction of those hydropower stations and high arch dams in seismic areas.

关 键 词：拱坝 建筑物 震损 沙牌水电站 

分 类 号：TV312[水利工程—水工结构工程]