| 循环荷载作用下粗粒料与掺砾粘土接触面单剪试验研究 |
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| 引用本文： | 刘平,杨贵,高德清,李国英.循环荷载作用下粗粒料与掺砾粘土接触面单剪试验研究[J].防灾减灾工程学报,2011,31(1):91-95. |
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| 作者姓名： | 刘平 杨贵 高德清 李国英 |
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| 作者单位： | 刘平,杨贵,高德清,LIU Ping,YANG Gui,GAO De-qing(河海大学岩土力学与堤坝工程教育部重点实验室,南京,210098;河海大学岩土工程科学研究所,南京,210098);李国英,LI Guo-ying(南京水利科学研究院土工研究所,南京,210024) |
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| 基金项目： | 水利部公益性行业专项经费项目，国家杰出青年科学基金，国家自然科学基金重点项目 |
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| 摘 要： | 土石坝内部存在较多的接触面,在静、动力荷载作用下,接触面的力学特性对坝体的稳定性具有显著的影响.基于动态单剪仪,开展了粗粒料与掺砾粘土接触面循环单剪试验.试验结果表明,初始剪应力加载方向对相对位移有较大影响:相对位移总是在沿初始剪应力加载方向一侧较大;在一个剪切循环内,正、反向加载时,若剪应力较小,发生剪缩变形,若剪应...
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| 关 键 词： | 接触面 循环剪切 粗粒料 抗剪强度 剪缩剪胀变形 |
Cyclic Simple-shear Tests on the Interface between Granular Material and Gravel-clay |
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| LIU Ping,YANG Gui,GAO De-qing,LI Guo-ying.Cyclic Simple-shear Tests on the Interface between Granular Material and Gravel-clay[J].Journal of Disaster Prevent and Mitigation Eng,2011,31(1):91-95. |
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| Authors: | LIU Ping YANG Gui GAO De-qing LI Guo-ying |
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| Institution: | LIU Ping~(1,2),YANG Gui~(1,GAO De-qing~(1,LI Guo-ying~3 (1.Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing 210098,China,2.Institute of Geotechnical Engineering,3.Geotechnical Department,Nanjing Hydraulic Research Institute,Nanjing 210024,China) |
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| Abstract: | Interfaces,which are commonly introduced into the rock filling dams constructed with different materials bearing distinct mechanical properties,according to the results of previous study,can exert evident influences on the performance of the whole dam.Using the NGI-type simple shear apparatus,cyclic simple shear tests on the interface between granular material and grave-clays were conducted to study the mechanical behaviors.Observations and conclusions are summarized based on the test results as follows: (1... |
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| Keywords: | interface cyclic shear granular material shear strength shear shrinkage deformation and shear dilatation deformation |
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