工程爆破

2019, v.25(03) 86-90

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基于事故树的深孔爆破边坡稳定性分析
Stability analysis of deep hole blasting slope based on fault tree

徐坚;叶继红;
XU Jian;YE Ji-hong;School of Port, Navigation and Transportation Engineering, Zhejiang Ocean University;School of Petrochemical and Energy Engineering, Zhejiang Ocean University;

摘要(Abstract):

为了能够对爆破后形成的露天边坡稳定性进行合理的分析评价,结合大小鱼山岛露天爆破边坡失稳的情况,采用事故树分析方法,建立了工程爆破现场露天边坡失稳事故树模型。计算出事故树的最小割集96个,最小径集3个以及基本事件的结构重要度系数,并得到基本事件结构重要度排序,找出了导致边坡失稳的主要原因是边坡监测和边坡支护。然后根据基本事件结构重要度的排序,制定合理有序的预防措施。事故树分析方法可以全面阐述露天矿边坡失稳的各种因素和逻辑关系,并通过对结构重要性分析,提出合理预防措施,为爆破露天边坡的安全管理提供参考依据。
In order to reasonably analyze and evaluate the stability of open-pit slope formed after blasting, combined with the instability of open-pit blasting slope of big and small Yushan Island, an fault tree model of open-pit slope instability in engineering blasting site was established by using fault tree analysis method. The structural importance coefficients of 96 minimum cut sets, 3 minimum path sets and basic events are calculated. The sequence of structural importance of basic events is obtained. The main causes of slope instability are slope monitoring and slope support. Then, according to the order of the structural importance of basic events, reasonable and orderly preventive measures are formulated. The fault tree analysis method can comprehensively expound the various factors and logical relationship of slope instability in open pit mine, and through the analysis of structural importance, put forward reasonable preventive measures, which can provide reference for the safety management of blasting open pit slope in engineering.

关键词(KeyWords): 事故树分析法;最小径集;最小割集;结构重要度;边坡稳定性
fault tree analysis method;minimum path set;minimum cut set;structural importance;slope stability

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作者(Author): 徐坚;叶继红;
XU Jian;YE Ji-hong;School of Port, Navigation and Transportation Engineering, Zhejiang Ocean University;School of Petrochemical and Energy Engineering, Zhejiang Ocean University;

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