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金属矿山 ›› 2015, Vol. 44 ›› Issue (02): 151-154.

• 安全与环保 • 上一篇    下一篇

某煤矿岩质台阶开挖边坡破坏类型分析

何怡1,2,陈学军1,3,王新刚1   

  1. 1.中国地质大学工程学院,湖北 武汉 430068;2.洛阳理工学院土木工程系,河南 洛阳 471023;3.桂林 理工大学土木与建筑工程学院,广西 桂林 541004
  • 出版日期:2015-02-15 发布日期:2015-07-29
  • 基金资助:

    * 国家自然科学基金项目(编号:41262011),桂科能项目(编号:11-KF-02)。

Analysis of Slope Failure Type at Excavation of Rocky Step:a Case of Rocky Excavated Slope in a Coal Mine

He Yi1,Chen Xunjun1,3,Wang Xin′gang1   

  1. 1.School of Engineering,China University of Geosciences,Wuhan 430074,China;2.Department of Civil Engineering,Luoyang Institute of Science and Technolegy,Luoyang 471003,China; 3.College of Civil Engineering and Architeclure,Guilin University of Technology,Guilin 541004,China
  • Online:2015-02-15 Published:2015-07-29

摘要: 岩体优势结构面控制岩质边坡变形的边界,优势面的组合决定了岩质边坡变形破坏的类型。针对某煤矿采 矿工程岩质开挖边坡,开展岩体结构调查和研究,进行优势结构面分组,将开采边帮按照几何形态和地层 岩性情况分区分段,通过优势结构面与台阶开挖边坡的倾向和倾角关系,采用Dips软件所得的直观分析图 ,可以分析采矿台阶开挖边坡的破坏类型及其破坏发生的条件。最后指出采矿台阶边坡开挖后,应采取针 对性的工程治理措施,并结合结构面赤平投影的可能性区域以及位置的分析,分区分段治理危险区域的台 阶边坡,以达到矿区安全生产的基础上节约成本的目的。

关键词: 结构面, 岩质边坡, 破坏类型, 采矿工程, 分区分段

Abstract: The predominant rock-mass structural planes control the boundaries of rocky slope deformation ,and their combination decides the type of deformation and failure.For a coal mine,the rock-mass structures of rocky excavated slopes in mining engineering were investigated and studied.The predominant structural planes were grouped,and the mining slopes were divided geometrically and lithologically into several sections.The associations of predominant structural planes with the inclining direction/angle of step excavation slopes were intuitively analyzed on Dips.Based on this,the occurring conditions for the failure type due to mining step excavated slope are discussed.The targeted engineering treatment measures should be applied after excavation of mining step slopes.The step slopes in danger areas can be sectionally treated by analyzing the possible areas and positions of structural planes′ stereographic projection.Thereby,safety production and cost saving in mines can be both guaranteed.

Key words: Structural surface, Rock slope, Failure type, Mining engineering, Sectional