煤岩变形破坏过程微震信号的实验研究

现代矿业 ›› 2014, Vol. 30 ›› Issue (07): 22-24.

煤岩变形破坏过程微震信号的实验研究

魏利娜^1,2，周春艳³，李静¹，曹晓丹¹

1.河北工程大学资源学院；2.河北省煤炭矿井建设工程技术研究中心；3.红河学院商学院

出版日期:2014-07-15 发布日期:2015-08-18

Research on the Microseismic Signals in the Process of Coal and Rock Deformation and Failure

Wei Lina^1,2，Zhou Chunyan³，Li Jing¹，Cao Xiaodan¹

1.College of Resources,Hebei University of Engineering；2. Hebei Technology Research Center of Coal Mine Construction Engineering;3.Business School,Honghe University

Online:2014-07-15 Published:2015-08-18

摘要/Abstract

摘要： 采用实验室实验，测试了煤岩变形破坏的微震信号，对比分析了煤岩变形破坏微震信号的规律及特征，初步探讨其机理。结果表明，煤样和岩样在主破裂发生前呈现出很弱的微震信号，即破坏发生前主频带变宽，应力达到最大值，信号频率最复杂，煤样在该阶段已经进入危险状态，必须立刻采取相应的措施。因此，可以利用煤岩变形破坏发出的微震信号变化特征，预测预报煤岩动力灾害发生。

关键词: 煤岩, 微震信号, 变形特征

Abstract: The microseismic signals of the coal and rock deformation and failure are monitored by the laboratory experiment method.The regularity and characteristics of microseismic signals of coal and rock deformation and failure are contrastive analyzed.Besides that,the mechanism of coal and rock deformation and failure is discussed.The research results show that,the coal and rock samples showing a weakly microseismic signals before the main fracture,that is to say,the main frequency zone is widen before the damage occurs,when the stress reach the maximum, the frequency of signals are complex,so,it is indicated that,the stage of coal samples enter a state of dangerous,it is necessary to take some appropriate measures to deal with them.Therefore,the change characteristics of microseismic signals of coal and rock deformation and failure can be used to predict the happens of coal and rock dynamic disasters.

Key words: Coal and rock, Microseismic signals, Characteristics of deformation

魏利娜, 周春艳, 李静, 曹晓丹. 煤岩变形破坏过程微震信号的实验研究[J]. 现代矿业, 2014, 30(07): 22-24.

WEI Li-Na, ZHOU Chun-Yan, LI Jing, CAO Xiao-Dan. Research on the Microseismic Signals in the Process of Coal and Rock Deformation and Failure[J]. Modern Mining, 2014, 30(07): 22-24.

[1]	任祥林. 某煤矿半煤岩巷综掘支护工艺应用实践[J]. 现代矿业, 2017, 33(12): 173-175.
[2]	王联, 王彪. 采动裂隙场条件下损伤煤岩体本构方程初步研究[J]. 现代矿业, 2013, 29(04): 11-13.
[3]	张瑞红, 张丽华, 林大超. 基于ITD算法的微震信号到时精确拾取[J]. 现代矿业, 2013, 29(03): 73-75+88.
[4]	李文璞, 王孟来, 唐强. 不同应力组合条件下煤岩渗透率的试验[J]. 现代矿业, 2011, 27(3): 16-19.
[5]	张壮初. 高瓦斯半煤岩掘进中边抽边掘技术的应用[J]. 现代矿业, 2011, 27(05): 76-77.
[6]	谈国文1, 李冰杭2, 宋志强1. 大断面突出危险半煤岩巷安全快速掘进技术研究谈[J]. 现代矿业, 2010, 26(11): 83-85.
[7]	郭坤. 回采巷道顶锚杆支护参数设计[J]. 现代矿业, 2010, 26(10): 114-115.
[8]	郭坤. 回采巷道顶锚杆支护参数设计[J]. 现代矿业, 2010, 26(10): 114-115.
[9]	张奔, 刘勇. 浅谈钻杆挠度对钻孔施工和成孔的影响[J]. 现代矿业, 2009, 25(7): 127-128.
[10]	孙萌, 张改玲. 基于工程地质勘探的防水煤岩柱留设预计 [J]. 现代矿业, 2008, 24(7): 85-87.