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| 采动煤岩体中冲击震动波传播的微震效应试验研究 | |
| 引用本文： | 曹安业,LUOXun,窦林名,王洪海,KINGAndrew.采动煤岩体中冲击震动波传播的微震效应试验研究[J].采矿与安全工程学报,2011,28(4):530-535. |
| 作者姓名： | 曹安业 LUOXun 窦林名 王洪海 KINGAndrew |
| 作者单位： | 1. 中国矿业大学矿业工程学院,煤炭资源与安全开采国家重点实验室,江苏徐州221116 2. 澳大利亚联邦科学与工业研究组织地质勘探与采矿分院,昆士兰布里斯班4069 3. 河南煤业化工集团焦煤集团,河南焦作,454002 |
| 基金项目： | 国家自然科学基金项目(50490273,50474068); 国家重点基础研究发展计划(973)项目(2010CB226805); 中央高校基本科研业务专项资金项目(2010QNA30); 江苏省高校优势学科建设工程项目; 煤炭资源与安全开采国家重点实验室自主研究课题项目(SKLCRSM10X05) |
| 摘 要： | 通过现场进行的爆破震动试验及矿山微震监测,以爆破震动波波速、振幅及频率等为主要分析指标,研究了矿井采动影响下煤岩特性改变对冲击震动波传播微震效应的影响规律.研究表明,随工作面开采时采空区垮落、破裂范围扩大及覆岩性质的强度弱化,各爆破震动P波平均波速、峰值振幅平均值、P波初至平均频率等微震参量均有较大程度降低.其中,波速... |
| 关 键 词： | 微震监测 覆岩破裂 震动波速 能量耗散 矿井安全 |
Experimental Research on Seismic Wave Transmission and Attenuation Associated with Underground Longwall Coal Mining |
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| CAO An-ye,LUO Xun,DOU Lin-ming,WANG Hong-hai,KING Andrew.Experimental Research on Seismic Wave Transmission and Attenuation Associated with Underground Longwall Coal Mining[J].Journal of Mining and Safety Engineering,2011,28(4):530-535. | |
| Authors: | CAO An-ye LUO Xun DOU Lin-ming WANG Hong-hai KING Andrew |
| Affiliation: | CAO An-ye1,LUO Xun2,DOU Lin-ming1,WANG Hong-hai3,KING Andrew2(1.School of Mines,State Key Laboratory of Coal Resources and Safe Mining,China University of Mining & Technology,Xuzhou,Jiangsu 221116,China,2.Exploration & Mining,CSIRO,Brisbane,Queensland 4069,Australia,3.Jiaozuo Coal Group,Henan Coal and Chemical Industrial Group,Jiaozuo,Henan 454002,China) |
| Abstract: | The changes of seismic characteristics in strata associated with longwall coal mining process are studied using on-site blasting tests and microseismic monitoring techniques.The seismic characteristics were obtained from analysis of seismic velocities,amplitudes and frequency contents in response to a series of blasts conducted at different mining stages.The results show that the average P-wave velocities,mean values of comb.max.amplitudes and frequencies of the seismic compression waves are all reduced sig... |
| Keywords: | microseismic monitoring strata fracturing seismic velocity energy dissipation mining safety |
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