| 云母石英片岩的三轴蠕变试验研究 |
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| 引用本文： | 陈文玲,赵法锁.云母石英片岩的三轴蠕变试验研究[J].力学学报,2007,15(4):545-548. |
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| 作者姓名： | 陈文玲 赵法锁 |
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| 作者单位： | 1. 长安大学地质工程与测绘学院,西安710054;
2. 西部地质资源与地质工程教育部重点实验室,西安710054;
3. 国土资源部岩土工程开放研究实验室,西安710054 |
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| 摘 要： | 在三轴蠕变试验的基础上,通过对径向蠕变和轴向蠕变的比较研究,得出云母石英片岩的蠕变变形和长期强度特点:径向蠕变变形比轴向蠕变变形敏感,以径向蠕变长期强度作为长期强度更合理;围压越大,对径向变形的约束能力越强,径向蠕变长期强度和轴向蠕变长期强度均增加,径向蠕变长期强度与轴向蠕变长期强度的比值减小。同时指出进行径向蠕变研究的意义。
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| 关 键 词： | 云母石英片岩 径向蠕变 轴向蠕变 长期强度 围压 |
| 收稿时间： | 2007-01-05 |
| 修稿时间： | 2007-04-06 |
TRIAXIAL TESTING STUDY ON CREEP CHARACTERISTICS OF MICA-QUARTZOSE SCHIST |
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| CHEN Wenling,ZHAO Fasuo.TRIAXIAL TESTING STUDY ON CREEP CHARACTERISTICS OF MICA-QUARTZOSE SCHIST[J].chinese journal of theoretical and applied mechanics,2007,15(4):545-548. |
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| Authors: | CHEN Wenling ZHAO Fasuo |
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| Institution: | 1. College of Geology Engineering and Geomatics,Chang’an University,Xi’an 710054;
2. Key Laboratory of Western China’s Mineral Resources and Geological Engineering,Ministry of Education,Xi’an 710054;
3. Open Research Laboratory of Geotechnical Engineering,The Ministry of Land Resources,Xi’an 710054 |
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| Abstract: | A quite number of triaxial creep tests were conducted on mica-quartzose schist,and the characteristics of creep deformation and long-term strength for this schist was analyzed by comparing with radial creep and axial creep in the tests.It was shown that,for this schist,taking the long-term strength of radial creep as the long-term strength was more reasonable since the radial creep is more sensitive than the axial creep.Besides,the higher confining compression is,the stronger the restraint of compression was to radial deformation,which resulted in decrease of both the long-term strength of radial creep and the long-term strength of axial creep.However,the ratio of the long-term strength of radial creep to the long-term strength of axial creep reduces with increasing of confining compression.This case study also indicated that the study of radial creep is significant. |
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| Keywords: | Mica-quartzose schist Radial creep Axial creep Long term strength Axial press |
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