煤炭工程 ›› 2014, Vol. 46 ›› Issue (10): 158-161.doi: 10.11799/ce201410045

• 研究探讨 • 上一篇    下一篇

大采高综放面支架—围岩系统失稳的模糊事故树法研究

何尚森   

  1. 中国矿业大学(北京)
  • 收稿日期:2013-08-19 修回日期:2013-10-29 出版日期:2014-10-10 发布日期:2014-10-10
  • 通讯作者: 何尚森 E-mail:1046171715@qq.com
  • 基金资助:

    国家自然科学基金资助项目;国家重点基础研究发展计划;中央高校基本科研业务费专项资金资助

Research of fuzzy fault tree in bracket - rock system accident at the fully mechanized caving face with large cutting height

  • Received:2013-08-19 Revised:2013-10-29 Online:2014-10-10 Published:2014-10-10

摘要:

基于同忻矿大采高综放面支架—围岩系统失稳机理,探究影响综放面稳定性的因素,建立了大采高综放面支架—围岩系统失稳事故树;运用三角模糊函数和布尔代数法求出顶事件发生的模糊概率,评价系统的安全性;对基本事件的模糊重要度进行排序,从而确定导致综放面支架—围岩系统失稳的主要因素。

关键词: 大采高综放面, 支架—围岩系统失稳, 事故树, 三角模糊数

Abstract:

Based on the instable mechanism of fully mechanized caving face with large cutting height bracket - rock system of special thick coal seam in Tongxin coal, the author explores the elements which impact the stability of fully mechanized caving face, meanwhile establishes the instable fault tree. Using triangular fuzzy function and Boolean algebra method, the author calculates the probability of the occurrence of the top event and evaluates the security of the system. The author also ranks the importance by calculating the fuzzy importance of the basic events, and thus ascertains the main elements causing the fault of fully mechanized caving face with large cutting height bracket - rock system.

Key words: fully mechanized caving face, bracket - rock system instability, fault tree, triangular fuzzy numbers