兴安煤矿深部软岩巷道底臌破坏机理及支护对策研究  

Study on floor heave failure mechanism and support measures for mine roadway in deep soft rock of Xing′an Mine

作　　者：郭志飚[1] 李国峰[1] 

机构地区：[1]中国矿业大学(北京)力学与建筑工程学院,北京100083

出　　处：《煤炭工程》2009年第2期66-69,共4页Coal Engineering

基　　金：国家自然科学基金重大项目(50490270);国家重大计划973项目(2006CB202200)

摘　　要：随着矿井开采深度的不断加大,软岩巷道的大变形、高地压、难支护的问题日益严重,底臌现象已成为软岩巷道围岩变形和破坏的主要特征与形式之一。论文通过研究软岩巷道底臌的力学机理并对底臌机理进行了分类,获取了软岩巷道底臌的主要影响因素;提出了控制底臌的支护措施;在此基础上通过数值模拟优化了支护参数,提出了一种新型控制底臌的支护技术。在复杂的软岩支护中,该技术取得了令人满意的效果,能有效控制巷道底臌。With the continued increasing of the mine mining depth, the problems of the high deformation, high ground pressure and difficult support occurred in the soft rock roadway were getting seriously and the floor heave phenomenon became on the main features and mode of the surrounding rock deformation and failure occurred in the mine soft rock roadway. With the study on the floor heave mechanics mechanism and the floor heave mechanism of the mine soft rock roadway, the paper classified the floor heave mechanics mechanism and the floor heave mechanism. The main influence factors of the soft rock roadway were obtained. The paper provided the support measures to control the floor heave. Base the circumstance, the support technology was optimized with the numerical simulation and the paper provided a new support technology to control the floor heave. In the complicated soft rock roadway support, the new technology was applied with the satisfactory benefit and could be effectively to control the floor hearer of the soft rock roadway.

关 键 词：软岩巷道 底臌 数值模拟 支护技术 

分 类 号：TD353[矿业工程—矿井建设]