湖南柿竹园多金属矿地压监测系统研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
地下矿床开采形成空区后,采空区周围岩体便呈现一种架空结构,由于开采破坏了岩体的原始应力状态而引起岩体内部应力的重新分布,从而导致上覆岩体失去原有的平衡,引起上覆岩体的变形、移动甚至破坏等地压活动现象。而空区范围超过一定限度之后,如不及时处理,就会导致空区、采矿场、巷道发生大量岩石冒落、岩体错动并伴有巨响、气体冲击波和矿震,还可能引起地表开裂、下沉、山体崩落、泥石流和地面建筑物陷落、倒塌等地压灾害,后果极其严重。湖南柿竹园多金属矿矿区遗留下的群采空区的体积已达到260万m3,顶板暴露面积达3万m2,由于空场暴露时间长,受岩体结构面破碎带、岩性穿插体及大爆破振动的影响,加之在采空区未经充填处理的情况下抽采矿柱,部分矿柱失稳跨塌,导致最大顶板连续暴露面积达8000m2,给矿山现行生产活动及矿床的进一步开采利用造成了很大的威胁。
     本文结合“柿竹园多金属矿床开采地压监控研究”课题,对建立一套完整的适合该矿山实际情况的地压监测系统进行研究,主要做了以下工作:
     (1)对矿山工程地质、采矿现状及地压显现情况做了详尽的调查,对矿柱失稳破坏原因进行分析,结果显示:该矿矿柱的破坏与大爆破、岩石的节理发育和花岗岩的穿插有关。
     (2)本文建立了适合该矿特点的地压监测网系统,且顺利的完成了监测系统的布置、运行、管理及后续处理分析。该系统是将地表、井下岩移监测网、钻孔应力计监测系统、声发射监测系统相结合的综合利用监测方案,其选择的监测仪器与监测技术方法合理有效,在井下累计多采空区的特殊环境条件下,既做到对留存矿柱和顶板上部富矿体的回收,确保矿山可持续发展,又能够处理采空区安全隐患,有很好的实际应用价值。
     (3)基于Visual FoxPro平台,建立了柿竹园地压监测数据库,能够对监测数据进行实时查询、管理、更新,且编译了数据库界面,使其更加直观可视化管理。建立的该数据库可减少大量工作量,提高工作效率。
     (4)对数据进行分析,总体把握声发射事件趋势,预报地压活动,为矿山地压灾害控制提供了重要依据。分析结果为,随着回采的不断进行,采场的声发射事件会激增且地压活动频繁,岩体稳定性降低。据分析,K3-4、K3-5,K4-3、K4-4大空场和西北角大空场之间的K3-2、K3-3矿柱将会承受巨大压力,出现危险可能性极高,应密切监测该重点区域。
Many mined-out areas exists after underground mining, so the rock mass around goaf presents one aerial construction, the virgin state of stress in rock must be destroyed and makes internal stress redistribution, this result leads to overlying strata deformation, movement even failure. when the range of mined-out areas exceeded certain limit without dealing timely, it will cause large rock falling and rock bed dislocation in mined-out areas, stope, roadways, and accompanied with slambang, gaseous shock and mine earthquake. It also may cause ground pressure disasters such as surface cracking, surface subsidence, mountain collapse, debris flow and the falling or collapse of ground buildings and so on, the consequence is very seriously. The polymetallic ore deposit of HuNan ShiZhuyuan leaves very large goaf, the volume has reached 2.6 million m3, and the exposed area of roof is 30000m2. Because of long exposing time of abandoned stope, some ore pillars influenced by fracture zones in rock structural plane, interpenetration masses and big blasting vibration are unstable and break down, together with mining pillar without stowing goaf. It leads the biggest continuous exposed area of roof reaching 8000m2, and has done severe harm to mine currently production activities and further production.
     According to actual conditions of mine, this paper researches on building a system of ground pressure monitoring which is integrated and effective。The following are the main features of my work:
     (1) I have done a lot of exhaustive work for mine engineering geological, mining status and conditions of ground pressure occurrence, and analyzed the destruction reasons of pillars. The result shows that the breakage of pillars is related with large scale blasting, joint developments in rock and the interpenetration of granite.
     (2) This paper establishes a comprehensive monitoring network Combining surface, underground rock movement, a borehole stress-meter monitoring system and acoustic emission automonitoring system. This project can properly achieve the goal to overall controlling and main monitoring for dangerous areas. Under the environment of many underground mined-out areas, this system can ensure the safety and high efficient mining of mine, recycle retaining pillars and ore shoot above roof, ensure sustainable development, as well as treating hidden dangers about mined-out areas.
     (3) The shizhuyuan ground pressure monitoring database is based on Visual FoxPro platform, it can search, manage and update data real-timely. And this paper compiles the interface of database, wishing to managing data directly.
     (4) This paper analyze all data, and overall grasp the trend of acoustic emission events, also forecast ground pressure activities. The analysis results indicate that, with increasing mining, the acoustic emission events will increase rapidly and make continual ground pressure activities, so debase the stability of rock mass. According to the analysis,the pillar of K3-2,K3-3 which between K3-4,K3-5,K4-3,K4-4 open stope and the northwest-corner open stope are bearing great pressure dangerously, so it should be observed closely, especially the key regions.
引文
[1]彭欣.复杂采空区稳定性及近区开采安全性研究[D].中南大学博士学位论文,2008.9
    [2]王启明,徐必根,唐绍辉等.我国金属非金属矿山采空区现状与治理对策分析[J].矿业研究与开发,2009,29(4):63-68
    [3]李爱兵,周爱民,尹彦波等.柿竹园多金属矿床群采空区条件下的崩落特性研究[J].岩石力学与工程学报,2008,27(11):2234-2243
    [4]古德生,李夕兵等.现代金属矿床开采科学技术[M].北京:冶金工业出版社,2006
    [5]邹平,李爱兵.地下采空引发山坡失稳地质灾害的研究与防治[J].采矿技术,2008,8(3):55-57
    [6]周鑫龙,杨令杰.矿山地压及其监测和控制研究[J].矿业工程,2006,4(5):6-8
    [7]毛建华.有色金属矿山地压与地质灾害防治[J].采矿技术,2002,2(1):31-33
    [8]陶雪芬,李爱兵,章光等.西北某矿采空区稳定性监测方案设计[J].现代矿业,2010,1:80-82
    [9]黄仁东,余健,徐国元等.声发射技术在湘西金矿深井安全开采中的应用[J].中国安全科学学报.2004,14(1):101-103
    [10]李庶林,杨念哥,尹贤刚等.深井地压灾害微震监测技术研究[C].第八次全国岩石力学与工程学术大会论文集,2004:510-513
    [11]Wallace, Keith G. McPherson, Malcolm J. Use of the gauge and tube method to determine pressure drops in mine shafts [C]. Proceedings of the US Mine Ventilation Symposium,1991: 507-513
    [12]Hudyma, M.R., Brummer, R.K. Seismic monitoring in mines-Design, operation, tricks and traps [J]. Rock Mechanics Meeting Society's Challenges and Demands.2007:1423-1430
    [13]Maochen Ge. Efficient mine microseismic monitoring [J]. International Journal of Coal Geology,2005,64:44-56
    [14]Urbancic, Theodore I., Trifu, Cezar-Ioan. Recent advances in seismic monitoring technology at Canadian mines [J]. Journal of Applied Geophysics,2000.45 (4):225-237
    [15]Hongliang Wang, Maochen Ge. Acoustic emission/microseismic source location analysis for a limestone mine exhibiting high horizontal stresses [J]. International Journal of Rock Mechanics & Mining Sciences.2008,45:720-728
    [16]Liu, Xinqiang, Li, Wenxiu.Study of ground pressure testing and support technique in mining of broken ore body in Luzhong mines[J]. Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering,2008,27(7):1477-1484
    [17]Trutwin, W. Mironowicz, W., Wasilewski, S.,Krawczyk, J.. Continuous monitoring of barometric pressure in deep mines[C]. Australasian Institute of Mining and Metallurgy Publication Series,8th International Mine Ventilation Congress-Proceedings.2005:399-409
    [18]Wang, Yong-Mao, Li, Ying, Wang, Jing-Ming, Wang, Shang-Ling, Wu, Bang-Quan.Mine pressure measurement in coal pillar and its application to roadway driven close to goaf. [C]. Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, 2005,24(19):3563-3570
    [19]Meier, E. Differential pressure tiltmeter for large-scale ground monitoring [J] International Water Power and Dam Construction,1991,43(1):38-40
    [20]Shimizu. I., Osawa. H., Seo. T.,, Sasaki, S.. Earthquake-related ground motion and groundwater pressure change at the Kamaishi Mine[J]. ngineering Geology.2005,43 (2): 107-118
    [21]Chengxiang Yang, Zhouquan Luo, Guobin Hu, and Xiaoming Liu.S Application of amicroseismic monitoring system in deep mining [J].Journal of University of Science and Technology Beijing,2007:6-8
    [22]Wu, Youlun, Lu, Jun, Hu, Jianhua,Xiao, Jianxin, Xie, Maohui,Luo, Wanchun.Application study of remote ground pressure monitoring technology in underground mining.[J] Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering.2007,26(1): 2815-2819
    [23]R. P. Young, and D. S. Collins, Seismic studies of rock fracture at the Underground Research Laboratory, Canada[J]. International Journal of Rock Mechanics and Mining Sciences.2001,38(6):787-799.
    [24]S. Kahraman, Estimating the direct P-wave velocity value of intact rock from indirect laboratory measurements[J]. International Journal of Rock Mechanics and Mining Sciences.2002,39(1):101-104.
    [25]C. Cosma, O. Olssonb, J. Keskinena and P. Heikkinena, Seismic characterization of fracturing at the Aspo Hard Rock Laboratory, Sweden, from the kilometer scale to the meter scale[J]. International Journal of Rock Mechanics and Mining Sciences.2001,38(6):851-857.
    [26]Waldhauser F, W L Ellsworth A double-difference earthquake location algorithm:method and application to the northern Hayward fault, California[J]. BSSA 90,1353-1368.
    [27]唐礼忠.深井矿山地震活动与岩爆监测及预测研究[D].中南大学博士学位论文,2008.4
    [28]杨承祥,罗周全,胡国斌.深井高应力矿床开采地压监测与分析[J].矿业研究与开发,2006,26(5):17-19
    [29]杨承祥,罗周全,唐礼忠.基于微震监测技术的深井开采地压活动规律研究[J].岩石力学与工程学报,2007.26(4):818-824
    [30]李庶林,尹贤刚,郑文达等.凡口铅锌矿多通道微震监测系统及其应用研究[J].岩石力学与工程学报.2005.24(12):2048-2053
    [31]王春来,吴爱祥,徐必根等.某深井矿山微震监测系统建立与网络优化研究[C].第十届全国岩石力学与工程学术大会论文集,2008
    [32]赵奎.矿山岩石力学若干测试技术及其分析方法[M].北京:冶金工业出版社,2009
    [33]宰金珉.岩土工程测试与监测技术[M].北京:中国建筑工业出版社,2008
    [34]李爱兵,李庶林,陈际经等.柿竹园多金属矿床开采地压研究[C].第八次全国岩石力学与工程学术大会论文集.2004.514-518
    [35]肖清,吴速英.地压监测系统的设计与应用[J].金属矿山,2008.6:80-81
    [36]孟稳权.冬瓜山首采区段常规地压监测系统的设计与安装[J].采矿技术,2006.6(3):10-12.299-301
    [37]刘国清.基于声发射的岩体工程灾害微震监测系统[J].采矿技术,2005.5(1):37-38
    [38]吉学文,唐绍辉,李爱兵.某地下矿山采场与围岩稳定性三维有限元模拟研究[J].矿业研究与开发,2003,23(2):7-9
    [39]谢文兵,陈晓祥,郑百生.采矿工程问题数值模拟研究与分析.[M].徐州:中国矿业大学出版社,2005
    [40]刘建坡,赵兴东,李元辉等.红透山铜矿深部地压数值模拟分析[C].隧道、地下工程及岩石破碎学术研讨会论文集.2007
    [41]高延法,张庆松.矿山岩体力学[M].徐州:中国矿业大学出版社,2005
    [42]杨明纬.声发射检测[M].北京:机械工业出版社,2005
    [43]马大喜,滕清安.金属矿山岩体移动监测数据库系统设计与实现[J].南方冶金学院学报.1998,19(1):7-12
    [44]刘宝华,王浩,刘利君.边坡岩移监测点数据库建立及应用[J].煤炭技术,2009,28(11):114-115
    [45]杨志国,于润沧,郭然.深井矿山微震事件波形研究[J].中国工程科学,2008.10(8):69-72
    [46]何建平.岩体声发射波形分析及噪声识别技术研究[D].西南科技大学,2008
    [47]尹彦波,李爱兵.采空区稳定性监测及预测新技术[C].第二届水工岩石力学学术会议论文集.2008
    [48]潘懿.深井采矿地压灾害微震监测、预报与控制技术研究[D].长沙矿山研究院,2008.6
    [49]何姣云.矿山采动灾害监测及控制技术研究[D].武汉理工大学博士学位论文,2007.4
    [50]陈赞成.跑马坪矿采空区稳定性分析及处理措施研究[D].昆明理工大学硕士学位论文,2006.12
    [51]逢焕东.岩体微地震的模式、定位及其失稳预报研究[D].山东科技大学博士学位论文,2004.6
    [52]钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003
    [53]王焕义.岩体微震事件的精确定位研究[J].工程爆破,2001,7(3):5-8
    [54]刘建东.基于声发射与微震技术的新型岩体稳定性监测系统及应用[J].有色金属,2008.60(4):32-35
    [55]潘一山,赵扬锋,官福海等.矿震监测定位系统的研究及应用[J].岩石力学与工程学报,2007.26(5):1002-1011
    [56]涂成立.武钢余化寺铁矿采场地压规律分析及控制对策研究[D].武汉科技大学硕士学位论文,2001,12
    [57]张永兴.岩石力学[M].北京:中国建筑工业出版社,2007
    [58]唐礼忠,潘长良,谢学斌,曹平.冬瓜山铜矿深井开采岩爆危险区分析与预测[J].中南工业大学学报.2002,33(4):335-338
    [59]张合君,王洪勇,赵伟.红透山矿地压监测的实践[J].化工矿物与加工,2008.6:22-24
    [60]何春林,崔栋梁.多通道声发射监测系统在井下采空区稳定性监测中的应用[J].有色金属,2008,60(1):34-37
    [61]曾凌方,李夕兵,刘晓亮.马路坪矿井下围岩稳定性监测系统的研究[J].采矿技术,2007,7(1):40-41
    [62]王洲洲.冲击地压灾害的监测及治理技术[J].技术论坛,2001:91-92
    [63]巴晶.岩石变形声发射数据处理方法研究[D].中国地震局地质研究所,2004.7
    [64]郑永学.矿山岩体力学[M].北京:冶金工业出版社,1988
    [65]王祥,孙来顺,黄斌.声发射技术在地应力测量中的研究现状[J].中国水运,2009,9(1):195-196
    [66]刘长武,翟才旺.地层空间应力场的开采扰动与模拟[M].郑州:黄河水利出版社,2005
    [67]唐礼忠.硬岩矿床岩爆监测方法选择与系统设计[J].中国矿业.2003.12(4):26-35
    [68]武崇福,刘东彦,方志.FLAC3D在采空区稳定性分析中的应用[J].河南理工大学学报,2007.26(2):136-140
    [69]王明,任凤玉.群采破坏矿山露天转井下衔接问题研究与实践[J].采矿技术,2003.3(3):1-4
    [70]黄家胜,刘祖文,温广军.我国矿山地压监测方法[J].矿业快报,2008,467(3):52-54

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700