| 锦屏绿片岩分级加载流变试验研究 |
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| 引用本文： | 石振明,张力.锦屏绿片岩分级加载流变试验研究[J].同济大学学报(自然科学版),2011,39(3):320-326. |
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| 作者姓名： | 石振明 张力 |
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| 作者单位： | 1. 同济大学,地下建筑与工程系,上海,200092;同济大学,岩土及地下工程教育部重点实验室,上海,200092
2. 同济大学,地下建筑与工程系,上海,200092;上海广联建设发展有限公司,上海200438 |
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| 基金项目： | 国家自然科学基金项目（50639090） |
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| 摘 要： | 对锦屏二级水电站引水隧洞围岩进行了分级加载流变试验,分析了试验过程中出现的现象、试样轴向、侧向应力应变关系,以及利用伯格斯模型求得的流变模型参数.分析结果表明,各试样总应变量轴向大于侧向,而各式样总流变量侧向大于轴向,流变和应变表现出不一致性;各级流变的流变量随各级应力的增加在逐级增加,各级流变的轴向流变量和侧向流变量占轴向总流变量和侧向总流变量的百分比是相似的;各试样的各级瞬时变形的弹模不断增大,符合岩石流变试验的一般性规律;在轴向和侧向两个方向上存在明显的各向异性,侧向能更快速和灵敏的反映应力变化引起的流变特性的改变;各流变参数均能正常反映绿片岩流变规律,伯格斯模型能较好的模拟锦屏绿片岩单轴流变特性.
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| 关 键 词： | 绿片岩 流变试验 伯格斯模型 流变参数 各向异性 |
| 收稿时间： | 12/8/2009 2:18:35 PM |
| 修稿时间： | 1/12/2011 2:36:34 PM |
Study on Rheological Test of Jinping Greenschist Under Step Load |
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| SHI Zhenming and ZHANG Li.Study on Rheological Test of Jinping Greenschist Under Step Load[J].Journal of Tongji University(Natural Science),2011,39(3):320-326. |
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| Authors: | SHI Zhenming and ZHANG Li |
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| Institution: | Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education,Tongji University,Shanghai 200092,China;Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;Shanghai Guanglian Construction Development Co. Ltd.,Shanghai 200438,China |
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| Abstract: | Rock rheology tests were carried out on greenschist specimens from auxiliary tunnel of Jinping II Hydropower Station by step loading method.Phenomenon of the tests and the specimen axial and lateral stress-strain relationship as well as the flow obtained using the Burgers model varying parameters were analyzed.The results show that all samples' strain on axial is greater than the lateral,while the rheology on lateral is larger than the axial,then the rheology and strain show an inconsistency.The rheological... |
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| Keywords: | green schist rheological test Burgers Model rheological parameters anisotropy |
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