| 不同围压下灰岩的强度与变形特性试验研究 |
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| 引用本文： | 熊赞民,高全臣,邬爱清,胡建敏.不同围压下灰岩的强度与变形特性试验研究[J].岩土力学,2007,28(Z1):111-113. |
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| 作者姓名： | 熊赞民 高全臣 邬爱清 胡建敏 |
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| 作者单位： | 1.中国矿业大学 力学与建筑学院，北京 100083；2.长江科学院岩基研究所，武汉 430010 |
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| 基金项目： | 雅砻江水电开发联合研究基金（No. 50639090） |
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| 摘 要： | 针对灰岩进行了室内常规三轴试验，对试样在不同围压下的强度和变形特性进行了分析。结果表明：灰岩的变形分为4个阶段，在2～10 MPa的围压范围内，岩石为脆性剪切破坏。其峰值强度、残余强度随围压的增加而增加，但峰值时的变形与围压的大小没有相关性；根据试验数据的回归分析，得到灰岩强度准则的表达式。
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| 关 键 词： | 灰岩 三轴压缩 试验 |
| 收稿时间： | 2007-05-31 |
Experimental research on limestone of strength and deformability under different confining pressures |
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| XIONG Zan-min,GAO Quan-chen,WU Ai-qing,HU Jian-min.Experimental research on limestone of strength and deformability under different confining pressures[J].Rock and Soil Mechanics,2007,28(Z1):111-113. |
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| Authors: | XIONG Zan-min GAO Quan-chen WU Ai-qing HU Jian-min |
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| Institution: | 1.School of Mechanics and Civil Engineering, CUMT, Beijing 100083, China; 2. Yangtze River Scientific Research Institute, Wuhan 430010, China) |
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| Abstract: | Triaxial compressive tests on limestone are conducted with a variety of confining pressures that range from 2MPa to 10MPa. This observation causes us to conclude that the deformation of limestone can be divided into four stages and the wreck is brittle cutting, The peak and stub intensity value increase with the confining pressure adding up, but the strain of the stress peak has no relativity to the confining pressure. By the redressing analysis, the formula of relation between intensity parameters is produced. |
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| Keywords: | limestone different confining pressures strength and deformability triaxial testing |
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