综放面覆岩运动诱发冲击矿压机制研究

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (0 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要基于砌体梁理论提出综放面覆岩运动的双向发展模式，分析综放面冲击矿压的能量来源和力源，利用微震监测技术对综放面覆岩运动的矿震效应进行监测。结果表明：覆岩运动的矿震活动呈周期性，冲击发生前矿震能量持续增大，冲击发生时达最大值，之后产生突降；冲击发生前，矿震频次先增大后有一定程度减小，冲击发生在频次下降沿，之后急剧下降；平均标高能够反映覆岩运动的空间形态，冲击发生前，平均标高逐渐增大，冲击发生或临近发生时，达到最大值，之后产生突降；矿震活动周期内，矿震空间分布先逐渐向上层位发展，冲击发生前，矿震空间分布达到最大值，工作面近距离岩层矿震活动强烈。指出综放面冲击矿压主要发生在覆岩运动下发展过程，可通过覆岩运动上发展过程的监测预防冲击矿压。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

关键词 ：采矿工程, 综放面, 覆岩运动, 双向发展模式, 冲击矿压

Abstract：Based on the voussoir beam theory，the bi-directional(up and down wards) movement model of top-coal caving face was promoted. Accordingly the energy and stress sources of rockburst were analyzed. By the seismic observation technology，the microseism(MS) effect of the overlying strata movement was observed and the achieved results are as follows：(1) the MS activity is periodic，before rockburst，the total energy continuously gets larger，and when rockburst happens，it gets up to the largest，and then it drops extraordinarily；(2) before rockburst happens，the events firstly get higher and then drop. The rockburst happens during the process of events reducing；(3) the average elevation can reflect the development state of the movement of overlying strata. Before rockburst happens，the average elevation gets higher，and when or pre of the rockburst，the elevation gets up to the largest value，while it drops abruptly after rockburst happening：(4) during the MS activity cycle，the spatial distribution of seismcities gets higher in elevation and vast in space before rockburst. When rockburst happens，it gets up to the peek values and the strata near the working face active strongly. As a result，the rockburst mainly happens during the overlying strata moving downwards，hence it?s possible to observe and prevent rockburst by monitoring the upward movement of the overlying strata.

Key words： mining engineering top-coal caving face strata movement bi-directional movement model rockburst

收稿日期: 2010-07-09

引用本文:

何江，窦林名，贺虎，陆振裕，吕长国，郭晓强. 综放面覆岩运动诱发冲击矿压机制研究[J]. 岩石力学与工程学报, 2011, 30(S2): 3920-3927.
HE Jiang，DOU Linming，HE Hu，LU Zhenyu，LU Changguo，GUO Xiaoqiang. MECHANISM STUDY OF OVERLYING STRATA MOVEMENT INDUCING ROCKRURST ON TOP-COAL CAVING FACE. , 2011, 30(S2): 3920-3927.

链接本文:

http://www.rockmech.org/CN/Y2011/V30/IS2/3920

[3]	史红，姜福兴. 采场上覆大厚度坚硬岩层破断规律的力学分析[J].岩石力学与工程学报，2004，23(18)：3 066-3 069.(SHI Hong，JIANG Fuxing. Mechanics analysis of rupture regularity of hard and massive overlying strata of longwall face[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(18)：3 066-3 069.(in Chinese))
[5]	牟宗龙，窦林名，倪兴华，等. 顶板岩层对冲击矿压的影响规律研究[J]. 中国矿业大学学报，2010，39(1)：40-44.(MU Zonglong，DOU Linming，NI Xinghua，et al. Research on the influence of roof strata on rock burst risk[J]. Journal of China University of Mining and Technology，2010，39(1)：40-44.(in Chinese))
[7]	成云海，姜福兴，张兴民，等. 微震监测揭示的C型采场空间结构及应力场[J]. 岩石力学与工程学报，2007，26(1)：102-107.(CHENG Yuhai，JIANG Fuxing，ZHANG Xingmin，et al. C-shaped strata spatial structure and stress field in longwall face monitoring[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(1)：102-107.(in Chinese))
[11]	成云海，姜福兴，张兴民，等. 微震监测揭示的C型采场空间结构及应力场[J]. 岩石力学与工程学报，2007，26(1)：102-107.(CHENG Yuhai，JIANG Fuxing，ZHANG Xingmin，et al. C-shaped strata spatial structure and stress field in longwall face monitored by microseismic monitoring[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(1)：102-107.(in Chinese))
[13]	陆菜平，窦林名，王耀峰. 坚硬顶板诱发煤体冲击破坏的微震效应[J]. 地球物理学报，2010，53(2)：450-456.(LU Caiping，DOU Linming，WANG Yaofeng. Microseismic effect of coal materials rockburst failure induced by hard roof[J]. Chinese Journal of Geophysics，2010，53(2)：450-456.(in Chinese))
[14]	SHEN B，KING A，GUO H. Displacement stress and seismicity in roadway roofs during mining-induced failure[J]. International Journal of Rock Mechanics and Mining Sciences，2007，45(5)：672-688. " target="_blank">
[16]	吴士良. 放顶煤采煤法覆岩运动规律初探[J]. 山东矿业学院学报，1992，11(3)：226-232.(WU Shiliang. Discussion of the overburden strata movement of long wall sublevel caving method[J]. Journal of Shandong Mining Institute，1992，11(3)：226-232.(in Chinese))
[18]	陆菜平，窦林名，郭晓强，等. 顶板岩层破断诱发矿震的频谱特征[J]. 岩石力学与工程学报，2010，29(5)：1 017-1 022.(LU Caiping，DOU Linming，GUO Xiaoqiang，et al. Frequency-spectrum characters of microseismic signals induced by roof stratum fracture[J]. Chinese Journal of rock Mechanics and Engineering，2010，29(5)： 1 017-1 022.(in Chinese)) " target="_blank">
[8]	姜福兴，XUN Luo. 微震监测技术在矿井岩层破裂监测中的应用[J]. 岩土工程学报，2002，24(2)：147-149.(JIANG Fuxing，XUN Luo. Application of microseismic monitoring technology of strata fracturing in underground coal mine[J]. Chinese Journal of Geotechnical Engineering，2002，24(2)：147-149.(in Chinese))
[9]	钱鸣高. 采场上覆岩层的平衡条件[J]. 中国矿业学院学报，1981，10(2)：31-40.(QIAN Minggao. Conditions required for equilibrium of overlying strata at working areas[J]. Journal of China Institute of Mining and Technology，1981，10(2)：31-40.(in Chinese))
[12]	成云海，姜福兴，程久龙，等. 关键层运动诱发矿震的微震探测初步研究[J]. 煤炭学报，2006，31(3)：273-277.(CHENG Yuhai，JIANG Fuxing，CHENG Jiulong，et al. Primary study on micro seismic locating and monitoring technology of shock bump caused by key stratum movement[J]. Journal of China Coal Society，2006，31(3)：273-277.(in Chinese))
[2]	潘俊锋，齐庆新，毛德兵，等. 冲击性顶板运动及其应力演化特征的3DEC模拟研究[J]. 岩石力学与工程学报，2007，26(增1)： 3 546-3 552.(PAN Junfeng，QI Qingxin，MAO Debing，et al. Study on movement and stress evolutionary process of impact roof with 3DEC[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.1)：3 546-3 552.(in Chinese)) " target="_blank">
[6]	何烨，彭飞，胡学军，等. 济二矿首例孤岛综放面冲击矿压监测治理[J]. 中国矿业大学学报，2004，33(5)：569-572.(HE Ye，PENG Fei，HU Xuejun，et al. Monitoring and control of rockburst in island coving coal face[J]. Journal of China University of Mining and Technology，2004，33(5)：569-572.(in Chinese))
[10]	钱鸣高，缪协兴，何富连. 采场“砌体梁”结构的关键块分析[J]. 煤炭学报，1994，19(6)：557-563.(QIAN Minggao，MIAO Xiexing，HE Fulian. Analysis of key block in the structure of voussoir beam in long wall mining[J]. Journal of China Coal Society，1994，19(6)：557-563.(in Chinese)) " target="_blank">
[17]	巩思园，窦林名，曹安业，等. 煤矿微震监测台网优化布设研究[J]. 地球物理学报，2010，53(2)：457-465.(GONG Siyuan，DOU Linming，CAO Anye，et al. Study on optimal configuration of seismological observation network for coal mine[J]. Chinese Journal of Geophysics，2010，53(2)：457-465.(in Chinese))
[1]	王述红，刘建新，唐春安，等. 煤岩开采过程冲击地压发生机制及数值模拟研究[J]. 岩石力学与工程学报，2002，21(增2)：2 480- 2 483.(WANG Shuhong，LIU Jianxin，TANG Chun?an，et al. Study on generation and numerical simulation of impact pressure in coal layer mining process[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(Supp.2)：2 480-2 483.(in Chinese)) " target="_blank">
[4]	窦林名，曹胜根，刘贞堂，等. 三河尖煤矿坚硬顶板对冲击矿压的影响分析[J]. 中国矿业大学学报，2003，32(4)：388-392.(DOU Linming，CAO Shenggen，LIU Zhentang，et al. Influence of key roof on rockburst in Sanhejian mine[J]. Journal of China University of Mining and Technology，2003，32(4)：388-392.(in Chinese))
[15]	BRADY B，LEIGHTON F. Seismicity anomaly prior to a moderate rock burst：a case study[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1977，15(3)：127-132. " target="_blank">