资料下载
×
AE法地应力测量技术在金属矿山中的应用
消耗积分:3 |
格式:rar |
大小:272 |
2009-07-11
分享资料个
对黄沙坪铅锌矿的钻孔岩芯在刚性压力机上进行了室内AE 试验,试验所用的AE 传感器
频率范围为100～1000 Hz。试验证实灰岩试样具有明显的Kaiser 效应,且在循环加卸载条件下,能有效地消除试样存放时间对Kaiser 效应的影响,所测垂直方向的原岩应力大小与测点处的自重应力非常吻合。
关键词:地应力;声发射; Kaiser 效应
Abstract :Acoustic emission test s were carried out in the lab with the drill core obtained f rom Huang2 shaping Lead2Zinc Mine on the rigid compression testing machine. The f requency range of the AE sen2 sor used in the test s was f rom 100 to 1000 Hz. Test result s showed that the limestone specimen pro2 duces obvious Kaiser effect . Furthermore , under the conditions of cycling loading , the influence of the storage time of the specimen on the Kaiser effect could be effectively eliminated and the measured ver2 tical in - situ rock st ress was in excellent coincidence with the self - gravity st ress at the survey point .
Key Words :Ground st ress , Acoustic emission , Kaiser effect
频率范围为100～1000 Hz。试验证实灰岩试样具有明显的Kaiser 效应,且在循环加卸载条件下,能有效地消除试样存放时间对Kaiser 效应的影响,所测垂直方向的原岩应力大小与测点处的自重应力非常吻合。
关键词:地应力;声发射; Kaiser 效应
Abstract :Acoustic emission test s were carried out in the lab with the drill core obtained f rom Huang2 shaping Lead2Zinc Mine on the rigid compression testing machine. The f requency range of the AE sen2 sor used in the test s was f rom 100 to 1000 Hz. Test result s showed that the limestone specimen pro2 duces obvious Kaiser effect . Furthermore , under the conditions of cycling loading , the influence of the storage time of the specimen on the Kaiser effect could be effectively eliminated and the measured ver2 tical in - situ rock st ress was in excellent coincidence with the self - gravity st ress at the survey point .
Key Words :Ground st ress , Acoustic emission , Kaiser effect
声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
评论(0)
发评论
- 相关下载
- 相关文章
