小厂坝矿区岩爆倾向性研究
投稿时间:2018-06-13  修订日期:2019-05-28  点此下载全文
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作者单位E-mail
刘财林 西北矿冶研究院 ltjt112@126.com 
张晨洁 西北矿冶研究院  
焦满岱 西北矿冶研究院  
刘涛 西北矿冶研究院  
中文摘要:岩爆倾向性是研究岩爆发生机理及发生机制的基础,本文采用脆性岩爆指标、Barton岩爆指标、弹性变形能岩爆指标和冲击能岩爆指标对矿体及上下盘主要围岩进行了岩爆倾向性研究,根据各指标的评价结果进行了综合评判,研究结果显示,矿体和下盘围岩属于强岩爆倾向性,在矿体开采过程中,应加强对地压变化的监测,采取适当措施,采用合理的开采方式及开采顺序,降低岩爆发生的概率和强度。
中文关键词:岩爆  脆性指标  高应力:深部开采  岩爆倾向性
 
Study on Rockburst Tendency in Xiaochangba Mining Area
Abstract:Rockburst tendency is the basis for studying the mechanism and mechanism of rockburst. In this paper, brittle rockburst index, Barton rockburst index, elastic deformation energy rockburst index and impact energy rockburst index are applied to the ore body and the surrounding rock mass of the upper and lower plates. The rockburst tendency research was conducted and comprehensive evaluation was made based on the evaluation results of various indicators. The results of the study showed that the orebody and the surrounding wall rock belong to the tendency of strong rockburst. During the mining process of the ore body, the change of ground pressure should be strengthened. Monitoring, taking appropriate measures, adopting reasonable mining methods and mining sequences to reduce the probability and intensity of rock bursts.
keywords:Acoustic emission  Kaiser effect  stress: Deep mining  Ground pressure monitoring
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