基于地应力现场实测与开采扰动能量积聚理论的岩爆预测研究
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摘要
高地应力诱发的岩爆灾害是目前深部地下工程经常遇到的工程地质问题。现场地应力测量是岩爆预测的重要前提,根据三山岛金矿深部测量和岩体赋存状况的特点,优化应力解除测量技术并在矿区深部进行现场实测。提出采场岩爆发生的2个必要条件,即岩石具备储备高应变能的特性和采场具备高应变能积聚的应力环境。基于地应力实测与岩石力学室内试验结果,采用多准则判据对矿区深部发生岩爆的倾向性做出定性分析与评价。FLAC3D数值模拟分析揭示深部开采引起的采场围岩能量积聚、分布状况及变化规律。首次采用地震学的知识,对三山岛金矿未来深部开采过程中可能诱发岩爆的地点和级别做出预测。研究成果为深部地下工程岩爆的预测、预报提供新的思路和途径。
Rockburst is a common engineering-geological problem in deep underground engineering.In-situ stress measurement is an important premise for prediction of rockburst.According to the requirement of deep measurement and burying condition of rockmass in Sanshandao gold mine,overcoring technique is improved and in-situ measurement is carried out in deep mining area.Rock with capacity of storing strong strain energy and stress environment to cause high energy accumulation,as two necessary conditions for rockburst,are proposed.Based on the results of in-situ stress measurement and rock mechanical test,qualitative analysis of rockburst prediction is accomplished using the multiple criteria.The distribution and variation law of rockmass energy accumulation caused by deep mining are revealed by FLAC3D simulation.With the help of seismology method,location and intensity of rockburst during future mining process in Sanshandao gold mine are predicted.The study results provide a new approach for rockburst prediction in deep underground engineering.
引文
[1]张镜剑,傅冰骏.岩爆及其判据和防治[J].岩石力学与工程学报,2008,27(10):2 034–2 042.(ZHANG Jingjian,FU Bingjun.Rockburstand its criteria and control[J].Chinese Journal of Rock Mechanics andEngineering,2008,27(10):2 034–2 042.(in Chinese))
    [2]蔡美峰,王金安,王双红,等.玲珑金矿深部开采岩体能量分析与岩爆综合预测[J].岩石力学与工程学报,2001,20(1):38–42.(CAIMeifeng,WANG Jin′an,WANG Shuanghong,et al.Analysis of energydistribution and prediction of rock burst during deep mining excavationin Linglong gold mine[J].Chinese Journal of Rock Mechanics andEngineering,2001,20(1):38–42.(in Chinese))
    [3]蔡美峰.金属矿山采矿设计优化与地压控制——理论与实践[M].北京:科学出版社,2001:8–9.(CAIMeifeng.Optimizationof miningdesign and control of ground pressure in metal mines—theory andpractice[M].Beijing:Science Press,2001:8–9.(in Chinese))
    [4]冯夏庭,赵洪波.岩爆预测的支持向量机[J].东北大学学报,2002,23(1):57–59.(FENG Xiating,ZHAO Hongbo.Prediction of rockburstusing support vector machine[J].Journal of Northeastern University,2002,23(1):57–59.(in Chinese))
    [5]WANG J A,PARK H D.Comprehensive prediction of rockburst basedon analysis of strain energy in rocks[J].Tunneling and UndergroundSpace Technology,2001,16(1):49–57.
    [6]宫凤强,李夕兵.岩爆发生和烈度分级预测的距离判别方法及应用[J].岩石力学与工程学报,2007,26(5):1013–1018.(GONGFengqiang,LI Xibing.A distance discriminant analysis method for prediction ofpossibility and classification of rockburst and its application[J].ChineseJournal of Rock Mechanics and Engineering,2007,26(5):1 013–1 018.(in Chinese))
    [7]ZHANG J J,FU B J,LI Z K,et al.Criterion and classification forstrain mode rockbursts based on five-factor comprehensive method[C]//Proceedings of the 12th ISRM International Congress on RockMechanics.[S.l.]:[s.n.],2012:1 435–1 440.
    [8]刘金海,姜福兴,张宗文,等.超前离层诱发矿震的机制及其微震特征[J].湖南科技大学学报,2011,26(1):28–32.(LIU Jinhai,JIANG Fuxing,ZHANG Zongwen,et al.Mechanism of mine earthquakeinduced by lead separation and its microseismic characteristics[J].Journal of Hunan University of Science,2011,26(1):28–32.(inChinese))
    [9]吴顺川,周喻,高斌,等.卸载岩爆试验及PFC3D数值模拟研究[J].岩石力学与工程学报,2010,29(增2):4 082–4 088.(WUShunchuan,ZHOU Yu,GAO Bin,et al.Study of unloading tests ofrock burst and PFC3Dnumerical simulation[J].Chinese Journal ofRock Mechanics and Engineering,2010,29(Supp.2):4 082–4 088.(in Chinese))
    [10]蔡美峰,刘卫东,李远.玲珑金矿深部地应力测量及矿区地应力场分布规律[J].岩石力学与工程学报,2010,29(2):227–233.(CAIMeifeng,LIU Weidong,LI Yuan.In-situ stress measurement at deepposition of Linglong gold mine and distribution law of in-situ stressfield in mine area[J].Chinese Journal of Rock Mechanics andEngineering,2010,29(2):227–233.(in Chinese))
    [11]何满潮,谢和平,彭苏萍,等.深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2 803–2 813.(HE Manchao,XIEHeping,PENG Suping,et al.Study on rock mechanics in deep miningengineering[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(16):2 803–2 813.(in Chinese))
    [12]冀东,纪洪广,向鹏.关于深部地应力测量若干改进技术的讨论[J].矿业研究与开发,2012,32(1):95–99.(JIDong,JIHongguang,XIANG Peng.Discussion on some improved techniques of in-situmeasurement at deep position[J].Mining Research and Development,2012,32(1):95–99.(in Chinese))
    [13]李远,乔兰,孙歆硕.关于影响空心包体应变计地应力测量精度若干因素的讨论[J].岩石力学与工程学报,2006,25(10):2 140–2 144.(LI Yuan,QIAO Lan,SUN Xinshuo.Analyses of some factorsaffecting precision in in-situ stress measurement with method of csirocells[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(10):2 140–2 144.(in Chinese))
    [14]乔兰,欧阳振华,来兴平,等.三山岛金矿采空区地应力测量及其结果分析[J].北京科技大学学报,2004,26(6):569–571.(QIAOLan,OUYANG Zhenhua,LAI Xingping,et al.In-situ stress measuringand its result analysis in Sanshandao gold mine of China[J].Journal ofUniversity of Science and Technology Beijing,2004,26(6):569–571.(in Chinese))
    [15]郭奇峰.三山岛金矿深井开采结构参数优化及地压活动规律监测与研究[博士学位论文][D].北京:北京科技大学,2012.(GUO Qifeng.Study on structural parameters optimization and ground pressuresurvey in deep mining of Sanshandao gold mine[Ph.D.Thesis][D].Beijing:University of Science and Technology Beijing,2012.(inChinese))

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