东达矿业晒旗河磷矿岩爆特点及防范措施  

Rock burst characteristics and preventive measures in Shaiqihe Phosphorite Mine of Dongda Mining Company

作　　者：米德剑 吴永刚[2] 谢源[2] MI Dejian WU Yonggang XIE Yuan(Jinchengxin Gold Mining Management Co. , Ltd. , Yichang Hubei 444200, China Beijing Guoxin Anke Technology Co. , Ltd. , Beijing 100160, China)

机构地区：[1]金诚信矿业管理股份有限公司,湖北宜昌444200 [2]北京国信安科技术有限公司,北京100160

出　　处：《有色金属（矿山部分）》2017年第4期76-80,共5页NONFERROUS METALS(Mining Section）

摘　　要：随着矿产资源的开发,岩爆已经逐步成为深部开采矿山的重要安全威胁。通过介绍某磷矿遇到的岩爆问题,对岩爆问题进行了初步探索。岩爆发生的强度和频率随着埋深的增大而递增,同时也多出现在矿体倾角变化、矿体厚度变化较为频繁地段。根据探索的初步经验,该矿通过采取合理的开挖和支护方式并加强预报等防范措施后,使得岩爆产生的破坏得到了有效控制。由地应力引起的岩爆问题属于区域问题,因此本文的研究成果可以为该矿以及邻近进入深部开采的矿山提供参考。Along with the extraction of vast mineral resources in deep mines,rock burst has become an significant threats to the mining operations.In this study,preliminary investigations on rock burst are carried out combined with the introduction of the collected problems from a deep phosphorite mine.The intensity and frequency of rock burst increase with increasing depth,it also occurs in site that orebody＇s dip angle and thickness changed more frequently.According to preliminary explore experience,damages caused by rock burst has been effectively controlled by preventive measures such as adopting reasonable excavation and supporting way and strengthen forecast.Preventive measures are adopted against the rock burst problems in this mine and good performance is obtained for the formation of some practical experience that the regional in-situ stresses play an important role for the cause of these rock burst events.The results and experience presents here can be guidance for the following operations in this mine and a reference for other similar deep mines.

关 键 词：磷矿 岩爆 地应力 防范措施 

分 类 号：TD26[矿业工程—矿井建设]