| NUMERIC ANALYSIS ON INFLUENCED FACTORS OF DISCONTINUOUS SURFACE DEFORMATION DUETO STEEPLY-INCLINED SEAM MINING |
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| 作者姓名： | 戴华阳 王金庄 吴立新 |
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| 作者单位： | Dai Huayang (Tangshan Branch，Central Coal Research Institute，Tangshan 063012)Wang Jinzhuang ;Wu Lixing (China University of Mining & Technology，Beijing 100083) |
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| 摘 要： | IntroductionThestratacharcteristicsofsteeply-inclinedsearnsreflectthatmekmasseshadwithswhstrenuousgeo-beicaltectonicrnovernntintheprocessofcoalfieldfondng.Undertheextrusionoftectonicmovement,therOOandbottomedofsteepsearnismoreseriouslydestructthanthatofgent-1yingseam.Therefore,roofandbottomrockofsteepseamhaswell-develoPedstratificationsandinitialfissures,andiseasytofai1duringndning.SPeakingOftectonicproperty,steep-dippingstrataoftenexistfaultsandfolds,andfondngmechbo-calweakplanesorweaklayer…
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| 关 键 词： | 地表移动 地表非连续变形 变形机理 岩石力学 有限元分析 影响因素 |
NUMERIC ANALYSIS ON INFLUENCED FACTORS OF DISCONTINUOUS SURFACE DEFORMATION DUE TO STEEPLY-INCLINED SEAM MINING |
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| Dai Huayang.NUMERIC ANALYSIS ON INFLUENCED FACTORS OF DISCONTINUOUS SURFACE DEFORMATION DUETO STEEPLY-INCLINED SEAM MINING[J].Journal of Coal Science & Engineering(China),1999,5(2):20-24. |
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| Authors: | Dai Huayang |
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| Abstract: | This paper deals with the shape and influenced factors of surface non-continuous deformation due to mining. With finite element method, analysis are made to derive the relations between discontinuous deformation and mining affection, weak plane's position & thickness, and mechanical property of weak-plane medium. The mutual affection of multiple weak-planes is also discussed. The results of the paper lay a foundation for constructing the calculation method of surface discontinuous deformation. |
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| Keywords: | steeply-inclined seam mining weak stratum discontinuous deformation influenced factors finite element method |
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