| 先期震动对土石坝地震永久变形的影响研究 |
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| 引用本文： | 赵剑明,刘小生,刘启旺,陈宁,常亚屏,王宏.先期震动对土石坝地震永久变形的影响研究[J].世界地震工程,2011,27(1). |
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| 作者姓名： | 赵剑明 刘小生 刘启旺 陈宁 常亚屏 王宏 |
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| 作者单位： | 中国水利水电科学研究院,北京,100048 |
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| 基金项目： | 国家自然科学基金重点项目(50639060); 国家“十一五”科技支撑项目(2009BAK56B02); 水利部“948”项目(200929) |
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| 摘 要： | 针对经历了5.12汶川大地震的紫坪铺面板堆石坝工程,进行了坝料的大型动三轴试验,研究了先期振动对坝料残余应变的影响。在此基础上,采用基于3维非线性动力反应的地震永久变形计算方法,进行了紫坪铺面板坝地震永久变形的计算,重点分析了先期震动对坝体地震永久变形的影响。结果表明,如果考虑先期已遭受强震作用影响,大坝的地震残余变形明显减小。
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| 关 键 词： | 土石坝 先期震动 残余应变 地震永久变形 |
Study on the effect of pre-vibration on earthquake-induced permanent deformation of an earth-rock fill dam |
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| ZHAO Jianming,LIU Xiaosheng,LIU Qiwang,CHEN Ning,CHANG Yaping,WANG Hong.Study on the effect of pre-vibration on earthquake-induced permanent deformation of an earth-rock fill dam[J].World Information On Earthquake Engineering,2011,27(1). |
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| Authors: | ZHAO Jianming LIU Xiaosheng LIU Qiwang CHEN Ning CHANG Yaping WANG Hong |
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| Institution: | ZHAO Jianming,LIU Xiaosheng,LIU Qiwang,CHEN Ning,CHANG Yaping,WANG Hong (China Institute of Water Resources and Hydropower Research,Beijing 100048,China) |
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| Abstract: | Aiming at the Zipingpu concrete-face fill rock dam(CFRD) which had suffered 5.12 Wenchuan Earthquake,the effect of pre-vibration on the residual strains of rockfill are studied by the large-scale dynamical triaxial test.Based on the test results,the earthquake-induced permanent deformations of Zipingpu CFRD are evaluated by adopting the developed evaluation method of 3-D nonlinear earthquake-induced permanent deformations,its focuses are the effect of pre-vibration on the earthquake-induced permanent deform... |
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| Keywords: | earth-rock fill dam pre-vibration residual strain earthquake-induced permanent deformation |
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