摘要
以洪水塘灰岩矿边坡失稳为研究对象,利用安全检查表分析法(SCL)和预先危险性分析法(PHA)辨识了其边坡失稳的危险源,通过事故树罗列了边坡失稳的影响因素,表明治理边坡失稳的手段应从技术和管理两方面共同考虑。分析了基本事件结构重要度,其中岩体物理力学性质降低影响最大,其次是布孔不当和钻孔超深,在该矿山做好地质勘探工作、测量监测工作和钻孔工作可有效预防边坡失稳事故的发生。
Taking the side slope instability of Hongshuitang as the study object,the safety checklist analysis and preliminary hazard analysis is adopted for recognition of hazard source of side slope instability,influencing factors for side slope instability are listed by fault tree,it shows measures to control slope instability should be considered by both technology and management.The importance of basic event structure is analyzed,the maximum effect is rock masses physical mechanics properties,the second is improper hole arrangement and ultra deep drilling;the side slope instability accident can be prevented effectively by good geological prospecting work,measurement and monitoring work,as well as drilling work.
作者
牛肖铮
赵迎青
NIU Xiao-zhen;ZHAO Ying-qing(Dali Hengtai Safety Technology Co.,Ltd.,Dali,Yunnan 671000,China)
出处
《云南冶金》
2021年第4期5-9,共5页
Yunnan Metallurgy
关键词
边坡稳定
事故树
最小割集
结构重要度
side slope stability
fault tree
minimum cutset
structural importance
