宝日希勒露天煤矿内排土场稳定性研究
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摘要
宝日希勒内排土场基底为煤层底板胶结好的深灰色泥岩、砂岩层和薄煤层,其倾向向南与内排场推进方向基本相同,基底产状、岩性对内排土场稳定性极为不利,加之煤层承压水向内排土场渗透、渗流,软化基底泥岩,形成演化弱层,降低排弃物抗剪强度,更加恶化了内排土场稳定性。随着剥离破土动工、内排工作开展,内排土场的稳定性将继续威胁坑下排水系统安全、内排工程安全和矿山安全生产,所以对内排基底稳定性和治理方案研究具有重要现实意义和实用价值。
本文依据内排土场滑坡实际情况,采用自主开发计算软件,进行内排土场滑坡反算,确定了基底演化弱层强度指标,同时采用FLAC3D模拟软件对内排土场进行滑坡模拟,进一步揭示了内排土场滑坡机理、滑坡模式,对内排土场稳定性做出了科学评价,并研究设计了内排土场综合治理和稳定控制措施。
The dump basal of Baorixile open pit coal mine is cementation with dark mudstone, sandstone layer and sandstone layer on coal floor. Its tendency is roughly same with the inner advancing direction strie--south. The inner basement and lithologic is adverse to the inner basal stability. Furthermore, because of the coal confined water, basal mudstone is softening, formation and evolution into weak layer, reduce exhaust outcast shear strength, this makes the stability worse.
As the peel ground-broken, inner work begins, the stability of Dump will continue making threat to the safty of drainage system and inner safety engineering even the safe production in mines. So it has the important practical significance and high economic efficiency in research of inner basal stability management.
The paper according to the actual situation of dump landslide, using independent development software, do the numerical of dump landslide to make sure the intensity index of base evolution weak layer. At the same time, use FLAC3D to do numerical simulation of the dump landslide, further reveal the inner dump landslide's landslide mechanism and mode. Make the scientific evaluation of its stability, within the proposed measures and comprehensive management dump, make sure the safty of drainage system and inner safety engineering also the safe production in mines.
本文依据内排土场滑坡实际情况,采用自主开发计算软件,进行内排土场滑坡反算,确定了基底演化弱层强度指标,同时采用FLAC3D模拟软件对内排土场进行滑坡模拟,进一步揭示了内排土场滑坡机理、滑坡模式,对内排土场稳定性做出了科学评价,并研究设计了内排土场综合治理和稳定控制措施。
The dump basal of Baorixile open pit coal mine is cementation with dark mudstone, sandstone layer and sandstone layer on coal floor. Its tendency is roughly same with the inner advancing direction strie--south. The inner basement and lithologic is adverse to the inner basal stability. Furthermore, because of the coal confined water, basal mudstone is softening, formation and evolution into weak layer, reduce exhaust outcast shear strength, this makes the stability worse.
As the peel ground-broken, inner work begins, the stability of Dump will continue making threat to the safty of drainage system and inner safety engineering even the safe production in mines. So it has the important practical significance and high economic efficiency in research of inner basal stability management.
The paper according to the actual situation of dump landslide, using independent development software, do the numerical of dump landslide to make sure the intensity index of base evolution weak layer. At the same time, use FLAC3D to do numerical simulation of the dump landslide, further reveal the inner dump landslide's landslide mechanism and mode. Make the scientific evaluation of its stability, within the proposed measures and comprehensive management dump, make sure the safty of drainage system and inner safety engineering also the safe production in mines.
引文
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[31]牛京考等.矿山科学技术的回顾与展望[M].煤炭工业出版社,2000.
[2]张瑞新,梅晓仁,高永胜,李海华,郭庆勇.露天开采规划决策系统及其应用[J].中国矿业大学学报,2003(3).
[3]于长顺.露天开采近十年的发展和趋向[J].采矿技术,2001(6).
[4]刘波,韩彦辉.FLAC原理、实例与应用指南[M].人民交通出版社,2005(9).
[5]赵克烈,张世雄,王官宝,刘雁鹰,石栓虎.FLAC3D在深凹边坡形状优化中的应用露天采矿技术[J],2006(1).
[6]王青,史维祥.采矿学[M].冶金工业出版社,2000(8).
[7]程海英,周敏,王忠福,张旭柱.边坡稳定及加固分析的FLAC强度折减法[J],2006(3).
[8]赵令家,唐孜绚.煤炭企业信息化指南[M].北京:石油大学出版社,2001.
[9]李世银.基于计算机网络传输的煤矿工业电视监控系统[J].电视技术,2001,(8).
[10] Sutherland, H.B. and Mwsdary, M.S.(1969). The influence of the intermediate principal stress on the strength of sand (A]. Proc. 7`h Int. Conf. On soil Mech. And found. Eng.[C]. Mexico:vol,l .391—399.
[11] C.A.Brebbia, J.C.F.Telles, L.C. Wrobel, Boundary element technique[J], Berlin Heidelberg New York Tokyo (1984).
[12] Tells, J.C.F, and Brebbia, C.A., Boundary element solution for half-plane problems[J], Int. J. Solids structures 17, 1149—1158 (1981).
[13]甘仞初.信息化、知识经济与煤炭企业管理[J].计算机科学,1999,10(专辑).
[14]王百顺等.论矿山管理信息系统的建设与开发[J].中国煤炭,2006(11).
[15]徐冯君,王保田,陈敏志.膨胀土边坡稳定分析综述[J].山西建筑,2006(1).
[16]夏邦栋.普通地质学[M].地质出版社,1995(6).
[17]加拿大矿物和能源技术中心.边坡工程手册[M].冶金工业出版社,1984(8).
[18]赵慧丽,康拥政,张永满.边坡稳定性分析理论与方法[J],路基工程,2006(1).
[19]刘景生,李强.CAD技术在露天开采设计中的应用[J].露天开采技术,2003(2).
[20]王仲停,郑贵洲.三维地学建模的技术方法[J].地矿测绘,2004(4).
[21]袁鼎荣,陈宏朝,严小卫.数据库技术研究进展[J].广西师范大学学报,2004.
[22]周昌寿,杜竟中,郭增涛,催治光.露天矿边坡稳定[J].中国矿业大学出版社,1990(5).
[23]于福元,王文.采矿通论[M].中国华侨出版社,1997(12).
[24]吴明,傅旭东,刘欢.边坡稳定性分析中的强度折减法[J].土工基础,2006(1).
[25]吴立新,殷作如,邓智毅等.论21世纪的矿山--数字矿山[J].煤炭学报,1999(4).
[26]唐红梅,陈洪凯,关明芳.边坡渗流研究现状及趋势分析[J].重庆交通学院学报,2006(1).
[27]陈天城.寒冷地区软岩边坡方案设计[J].水利科技,2003(3).
[28]张瑞鹤.边坡稳定分析及其设计中的有关问题探讨[J].城市道桥与防洪,2006(1).
[29]李东.管理信息系统的理论与应用[M].北京:北京大学出版社,2001.
[30]张坷.德兴铜矿备件管理信息系统的开发和应用[J].金属矿山,2002.2.
[31]牛京考等.矿山科学技术的回顾与展望[M].煤炭工业出版社,2000.