| 层状岩体破坏性质试验研究 |
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| 引用本文： | 康钦容,张卫中,张电吉.层状岩体破坏性质试验研究[J].科学技术与工程,2017,17(14). |
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| 作者姓名： | 康钦容 张卫中 张电吉 |
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| 作者单位： | 武汉工程大学资源及土木工程学院,武汉工程大学资源及土木工程学院,武汉工程大学资源及土木工程学院 |
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| 基金项目： | 武汉工程大学人才专项经费资助项目(K201321)；湖北省中低品位磷矿资源开发利用协同创新中心开放(P201120)；国家自然(编号：51474159)；煤矿灾害动力学与控制国家重点实验室访问学者课题资助(2011DA105287—KF201308)。 |
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| 摘 要： | 层状岩体由于其明显的各向异性特点,以及复杂的破坏机制,严重影响了地下工程的安全施工。通过对层状岩石试件进行全应力-应变三轴加载试验来研究层理对其强度特性和变形特征的影响;同时利用弹性小变形理论对复合层状岩体的变形及弹性模量进行了推导计算。试验研究结果表明,由于层理面之间存在不规整现象,水平层理的存在使得岩石强度以及整体弹性模量有所降低,使得在试件破坏时岩层的整体变形量增大。
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| 关 键 词： | 层状岩体 力学性能 变形特征 峰值强度 |
| 收稿时间： | 2016/11/9 0:00:00 |
| 修稿时间： | 2016/12/23 0:00:00 |
Experimental study on failure property of layered rock mass |
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| KANG Qin-rong,and ZHANG Dian-ji.Experimental study on failure property of layered rock mass[J].Science Technology and Engineering,2017,17(14). |
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| Authors: | KANG Qin-rong and ZHANG Dian-ji |
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| Institution: | School of Resources and Civil Engineering,Wuhan Institute of Technology,,School of Resources and Civil Engineering,Wuhan Institute of Technology |
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| Abstract: | The layered rock mass has obvious anisotropic characteristics and complicated failure mechanism, which has seriously affected the safe construction of underground engineering. The paper took complete stress-strain triaxial loading experiment on layered rock mass specimens to study the effect of bedding on their strength characteristics and deformation features. Meanwhile, small elastic deformation was used to deduct and calculate the deformation and elastic modulus of composite layered rock mass. The results showed that: because of the irregular phenomenon existed among the bedding and the existence of horizontal bedding, rock strength and the whole elastic modulus decreased slightly, leading to deformation increase when the specimens were destroyed. |
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| Keywords: | layered rock mass deformation features mechanical properties peak strength |
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