摘要
以矿山实际岩爆灾害为基础,分析导致岩爆灾害发生的基本事件,利用梯形模糊数算术运算的事故树分析方法,结合现场专家经验打分,计算出岩爆灾害树中各事件的发生频率,并将梯形模糊数转换为三角模糊数,找出引起岩爆灾害的各原因事件对岩爆灾害的重要性,提出有针对性的岩爆控制措施。结果表明:1)通过模糊数学建立模糊事故树,结合现场专家打分得出的原因事件重要度,能定量反映出该矿区的岩爆致因因素。2)针对矿区的岩爆现象特点及特殊的地质环境,得出矿区地应力环境、矿区支护特性、矿区开挖影响与矿区安全管理对其产生岩爆灾害事故的影响较大。3)通过降低矿区应力集中程度、及时对已形成的高应力进行改善,能在一定程度上控制岩爆灾害的发生。文中的研究对类似矿山预防井下岩爆灾害起到借鉴作用。
Based on the actual rock burst of actual mine,the basic event was analyzed to establish the fuzzy accident tree.And the occurrence frequency of each event of rock burst disaster were calculated,combining the expert scoring.Then the trapezoidal fuzzy accident tree was transformed into the triangular one,each reason event that important to the rock burst disaster was found out,and the targeted rock burst control measures were put forward.The research results showed that:1)though the fuzzy mathematics to establish the fuzzy accident tree,the rock burst cause factor can be reflected on quantitatively,combing with the important of reasons event on expert scoring.2)The geological environment,support characteristics,excavation influence and the safety management of mining area which were calculated have great influence on rock burst disaster,according to the characteristics of rock burst and the special geological environment in mining.3)The rock burst disaster can be controlled by reducing the degree of stress concentration and improving the concentrated stress zone.The research of the paper can be used as a reference for the similar mines to prevent its rock burst disasters.
作者
袁鑫
吝曼卿
张电吉
张卫中
彭亚利
周磊
YUAN Xin;LIN Man-qing;ZHANG Dian-ji;ZHANG Wei-zhong;PENG Ya-li;ZHOU Lei(School of Resource and Civil Engineering,Wuhan Institute of Technology,Wuhan 430073,China;Hubei Xingfa Chemicals Group Co Ltd,Yichang 443700,China)
出处
《武汉理工大学学报》
CAS
北大核心
2017年第7期27-33,共7页
Journal of Wuhan University of Technology
基金
国家自然科学基金(51504167,51474159)
湖北省重大科技创新项目(2016ACA178)
武汉工程大学校基金(K201407).
关键词
矿井
岩爆灾害
模糊事故树
三角模糊数
控制措施
mine
rock burst disaster
fuzzy accident tree
triangular fuzzy number
control measure
