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薄层状煤岩互层顶板巷道围岩控制机理及技术
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摘要
当巷道顶板是由多层薄层状煤岩互层组成,且该互层顶板具有整体稳定性较差、强度较低、层间易于离层甚至发生冒顶等特征,由顶板的变形破坏引起的巷道失稳已成为该类巷道亟待解决的关键问题之一。
     根据薄层状煤岩互层顶板工程地质及巷道失稳破坏特征,提出了薄层状煤岩互层顶板的概念。通过对互层顶板中夹矸组分分析及微结构特征研究,揭示了水作用下薄层状互层顶板强度弱化的内在机制。
     建立了薄层状互层顶板组合梁弹塑性力学分析模型,掌握了互层顶板岩梁应力分布规律;并结合薄层板状力学模型,研究了固支与简支情况下,弯曲最大变形及顶板屈服破坏时水平应力的临界值,得到了基于跨厚比判断顶板破坏的计算公式;基于夹矸的位置、层数、厚度对顶板稳定影响,提出了以极限跨度为依据的判别顶板离层的准则。
     采用相似材料物理模拟试验研究了无支护条件下,切顶斜矩形断面、破顶半圆拱形断面以及煤层倾角对薄层状互层顶板稳定性的影响作用,结果表明半圆拱形巷道整体稳定性较好,而斜矩形巷道易于产生顶板岩体结构的滑移错动引起的非对称性而导致变形失稳。
     应用FLAC~(3D)研究了巷道断面对薄层状巷道顶板的影响规律,对比分析了有水、无水状态下薄层状顶板变形破坏特征。基于钻孔探测方法的巷道围岩动态破坏过程监测技术,提出了以巷道内部裂隙发展发育与巷道掘出时间、空间关系为核心的薄层状顶板长期稳定性监测技术体系。研究成果在乌海能源老石旦煤矿进行了应用研究,取得了良好的技术经济效果。
When roadway roof is composed of lamellar coal-rock interbedded layers, and theinterbedded roof not only possesses the characteristics of relatively poor stability andlow strength, but also is apt to separate and fall, roadway instability resulted from thedeformation and failure of the roof is already one of the key problems that need to besolved urgently.
     The present paper puts forward the conception of lamellar coal-rock interbeddedroof according to its engineering geology and instable failure features of roadway. Thepaper also uncovers the internal mechanism of intensity weakening of lamellarcoal-rock interbedded roof under the effect of water through the study of the dirt bandcomponents in interbedded roof and its micro-structural characteristics.
     This paper not only establishes combined beam elastic-plastic mechanicalanalysis model of lamellar interbedded roof, grasps the stress distribution regularity ofinterbedded roof, but also combines the thin-tabular mechanical model with it toresearch the maximum bending deformation and the critical value of horizontal stresswhen roof’s yielding failure happens in two different boundary conditions, acquires thecalculating formula based on span to depth ratio to judge whether the roof fails or not.The paper proposes the criteria to distinguish roof separation determined by limit spanon the basis of the effects the position, number of layers, and thickness of dirt band hason the roof stability.
     Physical simulation test of similar material is adopted to research the impacts thatoblique rectangle section, round arch section and angle of coal seam have on thestability of lamellar coal-rock interbedded roof. The consequences indicate that integralroadway stability of round arch section is relatively well, and deformation failure is aptto take place in the oblique rectangle section roadway resulted from asymmetry ofsliding of roof rock structure.
     This paper studies the influence the roadway section has on the lamellar roadwayroof with the application of FLAC3D, contrasts and analyzes deformation failurecharacteristics of lamellar roadway roof in the condition of water and non-water. Basedon the technology of monitoring surrounding rock’s dynamic failure process in themethod of drilling detection, this paper presents technical system of long-term stabilitymonitoring of lamellar roof which treats relation between the excavating time, spatial ofroadway and internal fracture development as a core. The research results are applied in the Laoshidan mining, and earn favorable technical and economic effects.
引文
[1]陈炎光,陆士良.中国煤矿巷道围岩控制[M].中国矿业大学出版社,1994.
    [2]袁和生.煤矿巷道锚杆支护技术[M].煤炭工业出版社,1997.
    [3]康红普.煤巷锚杆支护动态信息设计法及其应用[J].煤矿开采,2002(1):5-8.
    [4] http://news.xinhuanet.com/politics/2013-02/07/c_124335688.htm.
    [5]毛光宁.美国锚杆支护综述[J].中国煤炭,2001,27(11):54-59.
    [6]侯朝炯,郭励生,勾攀峰.煤巷锚杆支护[M].徐州:中国矿业大学出版社,1999.
    [7]康红普,王金华.煤巷锚杆支护理论与成套技术[M].北京:煤炭工业出版社,2007.
    [8]贾蓬,唐春安,王述红.巷道层状岩层顶板破坏机理[J].煤炭学报,2006,31(1):11-15.
    [9]朱永建,马念杰.基于松动圈围岩分类法煤帮锚杆支护设计[J].煤炭科学技术,2006,34(7):30-32.
    [10]崔亮,雷学锋,赵飞虎.基于加权平均法的围岩稳定性评价研究[J].煤炭工程,2011,6(1):77-81.
    [11]柏建彪,侯朝炯.复合顶板极软煤层巷道锚杆支护技术研究[J].岩石力学与工程学报,2001,20(1):53-56.
    [12]马念杰,侯朝炯.采准巷道矿压理论及应用[M].北京:煤炭工业出版社,1995.
    [13]姚强岭,李学华.含水砂岩顶板巷道失稳破坏特征及分类研究[J].中国矿业大学学报,2013,42(1):50-56.
    [14]姚强岭.富水巷道顶板强度弱化机理及其控制研究[D].徐州:中国矿业大学,2011.
    [15] LI X.H,YAO Q.L,ZHANG N.Fracture characteristics of a soft rock roadway: stagedand zonedcontrol[J].Journal of China University of Mining&Technology,2009,38(5):618-623.
    [16] ZHANG N, Yuan L. Control principle ofseparating and broken roof rock strata inroadway[J].Journal of Mining&Safety Engineering,2006,23(1):34-38.
    [17]张农,李桂臣,阚甲广.煤巷顶板软弱夹层层位对锚杆支护结构稳定性影响[J].岩土力学,2011,32(9):2753-2758.
    [18]李桂臣.软弱夹层顶板巷道围岩稳定与安全控制研究[D].徐州:中国矿业大学,2008.
    [19]张农,王成,高明仕,等.淮南矿区深部煤巷支护难度分级及控制对策[J].岩土力学与工程学报,2009,12(9):2421-2428.
    [20]朱永建,冯涛.锚杆支护超长煤巷顶板稳定性动态分类研究[J].煤炭学报,2012,37(4):565-570.
    [21]朱永建.神东矿区锚杆支护煤巷顶板稳定性分类研究[D].北京:中国矿业大学(北京),2007.
    [22]朱永建,马念杰,师皓宇.煤巷顶板锚杆支护危险性评价研究[J].煤炭安全,2006,1(1):1-3.
    [23]谭云亮,王泳嘉.回采巷道分类指标的神经网络聚类分析模型[J].岩石力学与工程学报,1995,14(2):139-144.
    [24] Brosch F J, Schachner K Blmel M, Fasching M, et al.Preliminary investigation results onfabrics and related physical properties of an anisotropic gneiss[M].Journal of StructuralGeology,2000.
    [25] Singh VK,singhD,singhTN. Prediction ofstrength propertiesof someschistose rocks frompetrographic properties using artificial neural networks[M].Int J RockMech MinSci,2001.
    [26]王琳.巷道顶板稳定性分类及锚固支护机理研究[D].太原:太原理工大学,2006.
    [27]秦二涛.深埋层状岩体地下硐室稳定性及支护技术研究[D].长沙:中南大学,2012.
    [28]王启耀,杨林德,赵法锁.陡倾角层状岩体中地下硐室围岩的变形[J].长安大学学报(自然科学版),2006,26(5):69-73.
    [29]蒋臻蔚,王启耀,石玉玲.陡倾角层状岩体中巨型地下硐室群的围岩稳定性问题[J].公路交通科技,2005,22(6):127-130.
    [30]林崇德,孙同迟.煤巷层状顶板破坏机理分析[J].煤矿开采,1998,3(1):41-46.
    [31]郜进海.薄层状巨厚复合顶板回采巷道锚杆锚索支护理论及应用研究[D].太原:太原理工大学,2005.
    [32]谷拴成.层状顶板岩层中巷道稳定性研究[J].建井技术,1991,12(4):17-19.
    [33]侯公羽,陶龙光,李先炜等.层状断裂顶板锚拉支架系统的分叉研究[J].岩石力学与工程学报,2000,19(1):77-81.
    [34]杨峰,卿笃干,方坚宇.水平层状岩体连拱隧道施工数值模拟与现场实测[J].公路工程,2008,33(6):20-25.
    [35]黄教文,胡振东.浅析层状岩体中端头锚固锚杆的支护[J].2007年赣皖湘苏闽五省煤炭学会联合学术交流会论文集,2007.
    [36]钟放平.水平层状围岩隧道锚喷支护参数优化试验研究[J].铁道科学与工程学报,2008,5(l):59-63.
    [37]鞠文君.锚杆支护巷道顶板离层界限值的研究[J].煤矿支护,2005,20(4):53-46.
    [38]张农,高明仕.煤巷高强预应力锚杆支护技术与应用[J].中国矿业大学学报,2004,33(5):524-527.
    [39]陆庭侃,刘玉洲.水平应力作用下采区巷道顶板离层特征[J].隧道建设,2007,Aug(Sup):41-47.
    [40] Syd S.Peng.Coal Mine Ground Control[M]. Xuzhou: China University Mining andTechnology Press,2013.
    [41]陆庭侃,刘玉洲,许福胜.煤矿采区巷道顶板离层的现场观测[J].煤炭工程,2005,51(11):62-65.
    [42]柏建彪,侯朝炯,杜木民,等.复合顶板极软煤层巷道锚杆支护技术研究[J].岩石力学与工程学报,2001,20(1):53-56.
    [43]薛亚东,康天合.回采巷道围岩结构与裂隙分布特征及锚杆支护机理研究[J].煤炭学报,2000,25(S1):97-101.
    [44]康红普.高强度锚杆支护技术的发展与应用[J].煤炭科学技术,2000,28(2):1-4.
    [45]侯朝炯.煤巷锚杆支护的关键理论与技术[J].矿山压力与顶板管理,2001,29(1):1-5.
    [46] Louis A.panek. Stress corrosion theory of crack propagation with applications to geophysics[J].Rev.Geophys,1953,15(1):77-104.
    [47] Louis Anthony Panek.Design of bolting systems to reinforce bedded mine roof[A]. U.S. Dept.of the Interior, Bureau of Mines,1956.
    [48] Jacobio. Effect of moisture on the strength and deformability of sandstone[J]. Journal of MiningScience,1969,5(5):573-576.
    [49]侯朝炯,郭励生.煤巷锚杆支护[M].徐州:中国矿业大学出版社,1999.
    [50]杨建辉,尚岳全,祝江鸿,等.层状结构顶板锚杆组合拱梁支护机制理论模型分析[J].岩石力学与工程学报,2007,26(2):4215-4220.
    [51]徐金海.锚固体强度与组合拱承载能力的研究与应用[J].中国矿业大学学报,1999,28(5):482-485.
    [52]翟英达.锚杆预紧力在巷道围岩中的力学效应[J].煤炭学报,2008,33(8):856-859.
    [53] Guo S.,Stankus J. Control mechanism of a tensioned bolt system in the laminated roof with alarge horizontal stress [A].16th Int. Conf. on Ground Control in Mining,Morgantown,WestVirginia,1997.
    [54] Stankus J, Guo S. Computer automated finite element analysis-a powerful tool for fast minedesign and ground control problem diagnosis and solving[A].5th Conf. on the Use ofComputers in the Coal Industry, Morgantown, West Virginia,1996.
    [55]王卫军,李树清,欧阳广斌.深井煤层巷道围岩控制技术及试验研究[J].岩石力学与工程学报,2006,25(10):2102-2107.
    [56]侯朝炯,勾攀峰.巷道锚杆支护围岩强度强化机理研究[J].岩石力学与工程学报,2000,19(3):342-345.
    [57]张农,侯朝炯.巷道围岩强度弱化规律及其应用[J].中国矿业大学学报,1999,28(2):134-135.
    [58]张农.层状顶板预应力控制理论与煤巷锚杆支护技术[A].煤炭资源高效绿色开采与数字矿山学术讨论会论文集[C],2004.
    [59]何满朝,袁和生,靖洪文,等.中国煤矿锚杆支护理论与实践[M].北京:科学出版社,2004.
    [60]柏建彪,侯朝炯.深部巷道围岩控制原理与应用研究[J].中国矿业大学学报,2006,35(3):146-148.
    [61]董方庭,宋宏伟,郭志宏等.巷道围岩松动圈支护理论[J].煤炭学报,1994,19(1):21-32.
    [62]郭志宏,董方庭.围岩松动圈与巷道支护[J].矿山压力与顶板管理,1995,3(4):111-114.
    [63]陆士良,汤雷,杨新安.锚杆锚固力与锚固技术[M].北京:煤炭工业出版社,1998.
    [64]陆士良,付国彬,汤雷.采动巷道岩体变形与锚杆锚固力变化规律[J].中国矿业大学学报,1999,28(3):202-203.
    [65]王明恕.锚喷支护论文集[M].沈阳:东北工业出版社,1987:35-62.
    [66]林崇德.煤巷软弱顶板锚杆支护机理与技术研究[D].徐州:中国矿业大学,1999.
    [67]康红普,姜铁明,高富强.预应力在锚杆支护中的作用[J].煤炭学报,2007,32(7):681-685.
    [68]朱浮声,郑雨天,谭云亮.锚杆支护回采巷道围岩类型的最优模糊识别[J].煤炭学报,1997,22(3):265-269.
    [69]张农,侯朝炯,王培荣.深井三软煤巷锚杆支护技术研究[J].岩石力学与工程学报,1999,18(4):437-440.
    [70]周华强.巷道支护限制与稳定作用理论的研究[D].徐州:中国矿业大学,2000.
    [71]杨峰,王连国,贺安民,等.复合顶板的破坏机理与锚杆支护技术[J].采矿与安全工程学报,2008,25(3):286-289.
    [72] Diering D.H. Tunnels Under Pressure in an Ultra-Deep wifwatersrand Gold Mine[J].TheJournal of theSouth African Institute of Mining and Metallurgy,2000:319-324.
    [73] Guo Z B, Shi J J, Wang J, Cai F, et al. Double-directional control bolt support technologyandEngineeringapplication at large span Y-type intersections in deep coal mines[J].MiningScience and Technology2010,20(2):254-259.
    [74]郭颂.美国煤巷锚杆支护技术概况[J].煤炭科学技术,1998,26(4):10-15.
    [75] Kalman K. History of the sprayed concrete lining method-part I:milestones up to the1960s.Tunneling and Underground Space Technology2003,18(1):57-69.
    [76] Kalman K. History of the sprayed concrete lining method-part II:milestones up to the1960s.Tunneling and Underground Space Technology2003,18(1):71-83.
    [77]何满潮.软岩巷道工程概论[M].徐州:中国矿业大学出版社,2004.
    [78]何满潮,杨军,齐干,等.深部软岩巷道耦合支护优化设计及应用[J].辽宁工程技术大学学报,26(1):40-42.
    [79]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):2803-2813.
    [80]何满潮,孙晓明.中国煤矿软岩巷道工程支护设计与施工指南[M].北京:科学出版社,2004.
    [81]张农,高明仕.煤巷高强预应力锚杆支护技术与应用[J].中国矿业大学学报,2004(9):524-527.
    [82]何满潮,苏永华,孙晓明,等.锚杆支护煤巷稳定性可靠度分析[J].岩石力学与工程学报,2002,21(12):1810-1814.
    [83]侯朝炯,郭宏亮.我国煤巷锚杆支护技术的发展方向[J].煤炭学报,1996,21(2):113-118.
    [84]康红普.煤矿预应力锚杆支护技术的发展与应用[J].煤矿开采,2011,16(3):24-28.
    [85]袁亮.深井巷道围岩控制理论及淮南矿区程实践[M].北京:煤炭工业出版社,2004.
    [86]杨双锁,康立勋.锚杆支护研究的总结与展望[J].太原理工大学学报,2002,33:376-381.
    [87]范明建.锚杆预应力与巷道支护效果的研究[D].煤炭科学研究总院,2007.
    [88]杜计平,侯朝炯,朱亚平,等.深井破碎围岩条件下煤巷锚杆构件合理配套[J].采矿与安全工程学报,2007,27(4):401-404.
    [89]谢道刚.巷道锚杆施工质量控制及监测[J].煤炭科技,2008,27(2):114-116.
    [90]鞠文君,周寅生.锚杆支护巷道安全监测技术[J].中国安全科学学报,2004,14(10):105-108.
    [91]鞠文君.锚杆支护巷道顶板离层机理与监测[J].煤炭学报,2000,25:58-61.
    [92]程秀芝,李大平.锚杆支护质量监测方法的分析与探讨[J].煤矿安全,2007,8:67-68.
    [93]王金华.我国煤巷锚杆支护技术的新发展[J].煤炭学报,2007,32(2):114-116.
    [94]于腾飞,苏维嘉.巷道围岩变形自动监测系统[J].辽宁工程技术大学学报,2008,27(A01):213-215.
    [95]刘忠元.矿山顶板稳定性无线实时监测系统的设计[J].金属矿山,2011,5:042.
    [96]卢喜山.智能型顶板离层仪的研制与应用[J].煤炭工程,2006,6:040.
    [97]李剑锋.巷道顶板离层自动监测报警系统[J].煤矿机械,2007,28(4):164-164.
    [98]冯仁俊,彭文庆,杨义辉.全长锚固锚杆的光纤光栅实验研究[J].矿业工程研究,2009,24(1):39-43.
    [99]柴敬,兰曙光,李继平,等.光纤Bragg光栅锚杆应力应变监测系统[J].西安科技大学学报,2005,25(1):1-4.
    [100]裴雅兴,谭先康,王爱勋.光纤传感技术在预应力锚杆应力测试中的应用[J].人民长江,2004,35(1):25-27.
    [101]李辉,郝建军,何秋生.光纤传感技术在矿井安全监测中的应用[J].煤矿安全,2006,4:1-12.
    [102]马念杰,吴联君,刘洪艳,等.煤巷锚杆支护关键技术及发展趋势探讨[J].煤炭科学技术.2006,34(5):77-79.
    [103]鲜晓红,陈昌国,辜敏.X射线衍射分峰法测定液体汞结构[J].重庆大学学报(自然科学版),2007,30(8):98-104.
    [104]赵云杰.多组分混合物X射线衍射直接定量相分析方法[J].岩矿测试,1993,3:003.
    [105]王泽云,刘立,刘保县.岩石微结构与微裂纹的损伤演化特征[J].岩石力学与工程学报,2004,23(10):1-5.
    [106]刘立,邱贤德.岩石微损伤过程的测试研究[J].矿山压力与顶板管理.2003,2:113-114.
    [107]何江达,谢红强,范景伟,等.卸载岩体脆弹塑性模型在高边坡开挖分析中的应用[J].岩石力学与工程学报,2004,23(7):1082-1086.
    [108]朱珍德,李志敬,朱明礼,等.岩体结构面剪切流变试验及模型参数反演分析[J].岩土力学,2009,30(1):99-104.
    [109] Kilic A, Yasar E, Celik A.G. Effect of grout properties on the pull-out load capacity offullygrouted rock bolt[J]. Tunneling and Underground Space Technology,2002,17(4):355-362.
    [110] Wu Z. M, Yang S. T, Hu X. Z, et, al. Analytical method for pullout of anchorfromanchor-mortar-concrete anchorage system due to shear failure of mortar[J]. Journal ofEngineeringMechanics,2007,133(12):1352-1369.
    [111]刘石,许金余,刘志群,等.温度对岩石强度及损伤特性的影响研究[J].采矿与安全工程学报,2013,30(4):583-588.
    [112] HOU C. J. Review of Roadway Control in Soft Surrounding Rock under DynamicPressure[J].Journal of Coal Science&Engineering,2003,6:1-7.
    [113] Chang C. D,Haimson B. Effect of fluid pressure on rock compressive failure in a nearlyimpermeable crystalline rock Implication on mechanism of borehole breakouts[J]. EngineeringGeology,2006(10):10-16.
    [114] Feng X. T,Li S. J,Chen S. L.Effect of water chemical corrosion on strength and crackingcharacteristics of rocks[J].Key Engineering Materials,2004:1355-1360.
    [115] Jing Z. Z, Kimio W, Jonathan W, et al.A3D water/rock chemical interaction model forprediction of HDR/HWR geothermalreservoir performance [J]. Geothermics,2002,31:1-28.
    [116]傅雪海,秦勇,薛秀谦,等.煤储层孔裂隙系统分形研究[J].中国矿业大学学报(自然科学版),2010,30(3):225-228.
    [117]张松航,唐书恒,汤达祯,等.鄂尔多斯盆地东缘煤储层渗流孔隙分形特征[J].中国矿业大学学报,2009,38(5):713-717.
    [118]杨建辉,尚岳全,祝江鸿.层状结构顶板锚杆组合拱梁支护机制理论模型分析[J].岩石力学与工程学报,2007,26(S2):4515-4220.
    [119]杨建辉,杨万斌,郭延华.煤巷层状顶板压曲破坏现象分析[J].煤炭学报,2001,26(3):240-244.
    [120]李鸿昌.矿山压力的相似模拟试验[M].中国矿业大学出版社,1988.
    [121]李向阳,李俊平,周创兵,等.采空场覆岩变形数值模拟与相似模拟比较研究[J].岩土力学,2005,26(12):1907-1912.
    [122]韦四江,勾攀峰.锚杆预紧力对锚固体强度强化的模拟实验研究[J].煤炭学报,2012,37(12):1989-1993.

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