|
|||||
|
|
| 围压对杨氏模量的影响分析 | |
| 引用本文： | 赖勇. 围压对杨氏模量的影响分析[J]. 重庆交通大学学报(自然科学版), 2009, 28(2): 246-249,278 |
| 作者姓名： | 赖勇 |
| 作者单位： | 重庆交通大学,河海学院,重庆,400074 |
| 摘 要： | 从岩样对杨氏模量的影响出发,分析了围压对杨氏模量的影响机理,围压的增大引起裂纹密度的减小及裂纹的闭合与裂纹面的摩擦滑移作用是造成杨氏模量提高的主要原因。通过试验分析,认为岩石的杨氏模量随围压的增大而提高,当围压大于岩石的压密点强度后,杨氏模量的增大呈减小趋势而趋于定值;提出了岩石杨氏模量与围压关系的表达式,反映了裂隙密度随围压的增加呈指数关系减小的特征。 |
| 关 键 词： | 围压 杨氏模量 裂纹密度 压密强度 |
Effect Analysis of Confining Pressure on Young's Modulus |
|
| LAI Yong. Effect Analysis of Confining Pressure on Young's Modulus[J]. Journal of Chongqing Jiaotong University, 2009, 28(2): 246-249,278 | |
| Authors: | LAI Yong |
| Affiliation: | School of River & Ocean Engineering;Chongqing Jiaotong University;Chongqing 400074;China |
| Abstract: | Based on the effect of rock specimen on Young's modulus,the influence mechanism of confining pressure on Young's modulus is discussed.The increase of confining pressure,resulting in the decrease of the micro-crack density and the closure of the crack,and the fictional sliding effect between crack and slip surface are main causes of the increase of Young's modulus.Through the analysis of test data,it is concluded that the Young's modulus increases with the increase of confining pressure.While the confining p... |
| Keywords: | confining pressure Young's modulus micro-crack density compacting strength |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |