| 双江口水电站坝体材料及覆盖层坝基动力变形特性研究 |
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| 引用本文： | 张世殊,张建海,余挺,杨建,田景元,刘恩龙. 双江口水电站坝体材料及覆盖层坝基动力变形特性研究[J]. 水利与建筑工程学报, 2011, 9(4): 13-17 |
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| 作者姓名： | 张世殊 张建海 余挺 杨建 田景元 刘恩龙 |
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| 作者单位： | 1. 中国水电顾问集团成都勘测设计研究院,四川成都,610072
2. 四川大学水力学及山区河流开发与保护国家重点实验室,水利水电学院,四川成都610065 |
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| 基金项目： | 国家自然科学基金资助项目(51009103) |
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| 摘 要： | 筑坝材料的动力变形特性是进行大坝动力反应分析的基本依据之一,采用等效粘弹性模型计算时主要包括最大动剪模量Gmax与平均有效主应力的关系,动剪模量比G/Gmax与动剪应变幅γd的关系以及阻尼比λ与动剪应变幅γd的关系等。这些关系反映了在动荷载作用下土的应力应变关系的非线性与粘滞性特征。双江口水电站坝体材料及覆盖层坝基动力...
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| 关 键 词： | 双江口 坝体材料 覆盖层 动力变形特性 |
Study on Dynamic Deformation Characteristics of Dam Materials and Overburden in Shuangjiangkou Hydropower Station |
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| ZHANG Shi-shu,,ZHANG Jian-hai,YU Ting,YANG Jian,TIAN Jing-yuan,LIU En-long. Study on Dynamic Deformation Characteristics of Dam Materials and Overburden in Shuangjiangkou Hydropower Station[J]. Journal of Water Resources Architectural Engineering, 2011, 9(4): 13-17 |
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| Authors: | ZHANG Shi-shu ZHANG Jian-hai YU Ting YANG Jian TIAN Jing-yuan LIU En-long |
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| Affiliation: | ZHANG Shi-shu1,2,ZHANG Jian-hai2,YU Ting1,YANG Jian1,TIAN Jing-yuan1,LIU En-long2(1.Chengdu Investigation and Design Institute,China Hydropower Engineering Consultation Group Company,Chengdu,Sichuan 610072,China,2.State Key Laboratory of Hydraulics and Mountain River Development and Protection,College of Water Resources and Hydropower,Sichuan University,Sichuan 610065,China) |
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| Abstract: | The dynamic deformation characteristics of dam materials is one of the bases of analyzing the dynamic response of the dam.The calculation with equivalent viscoelastic model includes the relationships between the maximum dynamic shear modulus Gmax and average effective principal stress,between the dynamic shear modulus ratio G/Gmax and dynamic shear strain amplitude γd,between the damping ratio λ and dynamic shear strain amplitude γd and so on.These relationships reflect the nonlinear and viscous characteristics of stress-strain relationship of the soil under dynamic loading.The tests of dynamic deformation characteristics of the dam materials of Shuangjiangkou Hydropower Station are conducted by using two test methods at the same time.The parameters of the two test methods are compared here,the results show that the dynamic strain area is different in these two methods,which should be chosen based on different calculation models. |
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| Keywords: | Shuangjiangkou dam material overburden dynamic deformation characteristics |
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