| 节理岩体卸荷强度特性的试验研究 |
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| 引用本文： | 王飞,杜建坡,李秀芬.节理岩体卸荷强度特性的试验研究[J].地质灾害与环境保护,2008,19(3):104-108. |
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| 作者姓名： | 王飞 杜建坡 李秀芬 |
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| 作者单位： | [1]石家庄经济学院工程学院,石家庄050031; [2]河北邢台路桥建设总公司,邢台054001 |
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| 摘 要： | 卸荷状态工程岩体的强度特性与传统的加载岩体有本质的区别。目前对于岩石卸荷强度特性的研究比较多见，但对于含节理的岩体在卸荷应力状态下的强度特性，尤其是节理面对其强度的影响研究实属少见。本文通过岩体三轴模拟试验研究了卸荷应力状态下节理岩体的破坏特征，突出考虑了节理面性质对卸荷强度的影响，在此基础上提出了节理岩体卸荷强度准则的一般表达式并进行了对比验证。
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| 关 键 词： | 卸荷 节理岩体 强度 |
EXPERIMENTAL STUDY ON STRENGTH BEHAVIOR OF JOINTED ROCK MASS UNDER THE UNLOADING STATE |
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| WANG Fei,DU Jian-po,LI Xiu-fen.EXPERIMENTAL STUDY ON STRENGTH BEHAVIOR OF JOINTED ROCK MASS UNDER THE UNLOADING STATE[J].Journal of Geological Hazards and Environment Preservation,2008,19(3):104-108. |
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| Authors: | WANG Fei DU Jian-po LI Xiu-fen |
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| Institution: | WANG Fei, DU Jian-po, LI Xiu-fen (1. Engineering institute Of Shijiazhuang Economics University,Hebei Shijiazhuang 050031,China; 2. Hebei Xingtai Road＆bridge construct general company,Xingtai 054001, China) |
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| Abstract: | There is essential difference between the mechanical condition of unloading engineering rock mass and loading engineering rock mass. Currently the research of rock unloading strength characteristic sees more and much,but unloading strength characteristic of jointed rock mass, especially the influence of structural plane to unloading strength is in really seldom seen. this paper studied the destroy characteristics of unloading rock mass, the influence of structural plane properties to unloading strength based on model test are considered emphatically. Finally this paper proposed the strength criterion of unloading rock mass and proved through comparing . |
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| Keywords: | unloading jointed rock mass strength |
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