面板堆石坝工程抗震措施数值仿真计算研究及论证  

Study and Verification of Earthquake-resistant Measures Numerical Simulation Calculation of a Concrete Face Rockfill Dam Project

作　　者：相彪 冯业林 陈域 XIANG Biao;FENG Ye-lin;CHEN Yu(China Power Kunming Engineering Corporation Limited, Kunming 650051, Yunnan, China;State Energy Hydropower Engineering Technology Research and Development Center, High Earth-rock Dam Branch, Kunming 650051, Yunnan, China;Yunnan Province Research Center of Water Resources and Hydropower Earth-rock Dam Engineering Technology, Kunming 650051, Yunnan, China)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051 [2]国家能源水电工程技术研发中心高土石坝分中心,云南昆明650051 [3]云南省水利水电土石坝工程技术研究中心,云南昆明650051

出　　处：《云南水力发电》2016年第6期40-43,共4页Yunnan Water Power

摘　　要：我国西部地区地震活动频繁、强度大、分布广,在高烈度地震区进行高土石坝建设,大坝的抗震安全及工程措施已成为亟待解决的关键技术问题之一。依托古水水电站高面板堆石坝工程,采用数值仿真手段对多种工程抗震措施方案进行了计算分析,对比论证了不同抗震措施的合理性和有效性。结果表明,强震时坝顶加筋的抗震措施效果较为明显,在面板中部压性缝内填充材料可减轻面板坝轴向的挤压破损,在面板中上部设置水平结构缝可对面板顺坡向的拉裂破坏起到较好的减缓效果。In west China seismic activities occur frequently, which are characterized by high intensity and wide distribution. When a high earth-rock dam is to be constructed in a seismic region with high seismic intensity, the dam earthquake resistance and engineering measures is one of the key technical problems to be settled urgently.The paper conducts calculation and analysis of various engineering earthquake-resistant measures by means of numerical simulation and verifi es rationality and effectiveness of different earthquake-resistent measures by comparison based on the Gushui high concrete face rockfi ll dam. The results show that the dam crest reinforcement taken as earthquake-resistent measures brings about a striking effect during occurrence of an intensive earthquake,the fi lling material in middle compressive joints of the concrete face slab can reduce axial compressive damage of the concrete face rockfi ll dam, and installation of horizontal structure joints in the intermediate-top part of the dam can relieve tension damage along the positive slope of the face slab.

关 键 词：抗震措施 坝顶加筋 挤压破损 结构分缝 面板堆石坝 

分 类 号：TV312[水利工程—水工结构工程]