收稿日期: 2017-07-12
修回日期: 2017-11-08
网络出版日期: 2019-01-24
基金资助
国家基础研究发展计划项目“复杂采空区大规模坍塌的灾害孕育机理研究”(编号:2015CB060200)和国家自然科学基金青年基金项目“硬岩矿床深部开采”(编号:51322403)联合资助
Reliability Evaluation of Pillars System Based on Domino Failure Effect
Received date: 2017-07-12
Revised date: 2017-11-08
Online published: 2019-01-24
周子龙 , 王亦凡 , 柯昌涛 . “多米诺骨牌”破坏现象下的矿柱群系统可靠度评价[J]. 黄金科学技术, 2018 , 26(6) : 729 -735 . DOI: 10.11872/j.issn.1005-2518.2018.06.729
The residual goafs after mining operations is a great threaten to underground work and surface building safe.Stability assessment on goafs system helps to guide normal production and prevent disasters.According to pillars’ domino effect,multiple pillars system was constructed,based on which plliars’ strength was calculated and the limitation state equation was proposed.The system’s stability under criteria with different safety factors was estimated by Monte-Carlo simulation method. In a chromite mine,failure probability of multiple pillars system was much higher than failure criteria,which corresponds to the realistic failure.The stability of pillars system was greatly influenced by both pillar bearing capacity and pillar number.
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