| 武夷山隧道围岩破坏过程中的声发射特性研究; Studies on Acoustic Emission Characteristics of Tunnel Surrounding Rock of Wuyi Mountain | |
| 黄玉仁 ; 林朝阳 ; 毛建喜 ; 胡静云 | |
| 2015-03-28 | |
| 关键词 | 岩石力学 声发射 能量率 破坏前兆 破坏类型 空间定位 rock mechanics acoustic emission energy rate failure precursor failure types spatial orientation |
| 英文摘要 | 在单轴加载条件下进行花岗岩和凝灰岩试件加载破坏过程中声发射(AE)特性试验研究,得到岩石加载破坏过程中时间-应力-空间定位事件率、时间-应力-撞击率和时间-应力定位事件能量率图,并获得累计定位事件、累计撞击事件和累计定位事件能量.研究结果表明能量率与事件率和撞击率相一致,均在岩石试件破坏前期有突增特性.结合这3个参数作为岩石破坏前兆,能为岩石失稳破坏提供较好的参考依据.根据岩石加载破坏过程中不同岩性的空间定位事件累计能量的量级特征,分析通过试验为工程实际中围岩体损伤程度进行实时监测提供参数依据的科学可行性.; Experiments on acoustic emission(AE)characteristics of complete granite and tuff failure process are carried out under uniaxial loading to obtain the relationship of time-stress-spatial orientation acoustic emission rates,time-stress-hit rates and timestress-acoustic emission energy rates,accumulative spatial orientation acoustic emission,accumulative hits and accumulative acoustic emission energy are obtained at the same time.Results show that hit rates,AE event rates and,energy rates have the same characteristics of uprush before rock failure,they can be used together as rock failure precursor to make an accurate prediction of rock burst.According to the order of magnitude of accumulative acoustic emission energy of different lithological character,it is scientific feasibility to use laboratory experiment results as parameter to perform real-time damage monitoring of ore pillars. |
| 语种 | zh_CN |
| 内容类型 | 期刊论文 |
| 源URL | [http://dspace.xmu.edu.cn/handle/2288/108816]  |
| 专题 | 建筑土木－已发表论文 |
| 推荐引用方式 GB/T 7714 | 黄玉仁,林朝阳,毛建喜,等. 武夷山隧道围岩破坏过程中的声发射特性研究, Studies on Acoustic Emission Characteristics of Tunnel Surrounding Rock of Wuyi Mountain[J],2015. |
| APA | 黄玉仁,林朝阳,毛建喜,&胡静云.(2015).武夷山隧道围岩破坏过程中的声发射特性研究.. |
| MLA | 黄玉仁,et al."武夷山隧道围岩破坏过程中的声发射特性研究".(2015). |
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