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淮南矿区深部回采巷道矿压显现特征及支护技术

发表时间:2013-09-30  浏览量:1051  下载量:495
全部作者: 陈登红,华心祝
作者单位: 安徽理工大学能源与安全学院
摘 要: 在调研现有淮南矿区煤巷围岩稳定性相关资料、实测部分深部矿井地应力、回采巷道围岩力学参数的基础上进行数据整理、分析,得到淮南矿区深部回采巷道属于高应力软岩巷道,赋存于典型构造应力场下。调研发现淮南矿区深部煤巷变形表现为:底鼓严重、顶板开裂呈现“W型”垮冒、帮部出现网兜现象;采用通用离散元程序(universal distinct element code,UDEC)数值模拟计算分析了巷道变形破坏部位及其原因;针对破坏特征提出了淮南矿区深部回采巷道支护思路并进行了工程实践。结果表明:巷道围岩变形得到有效控制,满足了工作面安全高效生产需求,取得了较好的效果。
关 键 词: 采矿工程;淮南矿区;深部回采巷道;矿压特征
Title: Characteristics of strata behaviors and support technology for gateways under deep mine in Huainan area
Author: CHEN Denghong, HUA Xinzhu
Organization: School of Mining and Safety Engineering, Anhui University of Science & Technology
Abstract: Data compilation and analysis was carried out based on relevant literatures survey of surrounding rock stability on tunnel, in-situ measure of rock stress in deep mine and testing on mechanical parameters of roadway surrounding rock, and it showed that deep roadway of Huainan area belongs to high stressed soft rocks under typical tectonic stress. The deformation of tunnel manifested to be serious floor heave, “W” type cracked on the roof and net phenomena appearred on sides of tunnel. Universal distinct element code (UDEC) numerical simulation was adopted to analyze the failure section and its reason. Support ideas were proposed according to the failure characteristics and were put into engineering practice. The result showed that deformations of surrounding rock were effectively controlled and could meet security and high efficient production need, and good results had been acquired.
Key words: mining engineering; Huainan mining area; deep mine gateways; pressure characteristics
发表期数: 2013年9月第18期
引用格式: 陈登红,华心祝. 淮南矿区深部回采巷道矿压显现特征及支护技术[J]. 中国科技论文在线精品论文,2013,6(18):1766-1772.
 
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