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| 具有弱冲击倾向性的须六段砂岩声发射特征 | |
| 引用本文： | 张凤舞,郭臣业,沈大富,周东平,姜永东.具有弱冲击倾向性的须六段砂岩声发射特征[J].山东科技大学学报(自然科学版),2011,30(6). |
| 作者姓名： | 张凤舞 郭臣业 沈大富 周东平 姜永东 |
| 作者单位： | 1. 重庆市能源投资集团公司,重庆,400060 2. 重庆市能源投资集团科技有限责任公司,重庆,400060 3. 重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400030 |
| 基金项目： | 国家自然科学基金项目(50904082); 重庆市科委自然科学基金计划项目(cstcjjA00002) |
| 摘 要： | 为了认识具有弱冲击倾向性砂岩的声发射特性,利用MTS815岩石力学测试系统、AE测试分析系统对永川煤矿须六段砂岩进行了测试。结果表明:砂岩受载过程的不同阶段产生的AE信号有较大区别;AE事件空间分布的变化反映了岩石受损伤后的破裂失稳过程;须六段砂岩存在Kaiser效应和Felicity效应。研究结论为应用AE监测技术预测、预报矿井岩石动力灾害提供了科学依据。 |
| 关 键 词： | 岩石力学 弱冲击倾向性 声发射 Kaiser效应 Felicity效应 |
Acoustic Emission Characteristics of Weak Impact-prone T_3xj~6 Sandstone |
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| ZHANG Fengwu,GUO Chenye,SHEN Dafu,ZHOU Dongping,JIANG Yongdong.Acoustic Emission Characteristics of Weak Impact-prone T_3xj~6 Sandstone[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,2011,30(6). | |
| Authors: | ZHANG Fengwu GUO Chenye SHEN Dafu ZHOU Dongping JIANG Yongdong |
| Institution: | ZHANG Fengwu1,GUO Chenye2,3,SHEN Dafu2,ZHOU Dongping2,JIANG Yongdong4 (1.Chongqing Energy Invesment Group,Chongqing 400060,China,2.Science and Technology Co.Ltd,Chongqing Energy Investment Group,3.Chongqing Institute of Gas Energy,4.Key Lab for Development of Southwestern Resources and Environmental Disaster Control Engineering,Ministry of Education,Chongqing University,Chongqing 400030,China) |
| Abstract: | In order to understand the acoustic emission characteristics of weak impact-prone sandstone,experiments of T3xj6 sandstone in Yongchuan coalmine were tested by means of MTS815 rock testing system and AE testing system.Results of the tests indicated that there were large differences of the acoustic emission signals produced in different stages of sandstone loading process.The variation of spatial distribution of AE events reflected the failure process of sandstone damaged.The Kaiser and Felicity effects exis... |
| Keywords: | rock mechanics weak impact-prone acoustic emission Kaiser effect Felicity effect |
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