高家梁煤矿斜井围岩蠕变规律的研究
摘要
研究软岩井巷的稳定性问题时不可避免地要研究其蠕变性质。能否准确地计算和模拟围岩的蠕变行为,对于选择支护和围岩控制方案,具有十分重要的意义。
针对高家梁煤矿软岩蠕变问题,本文基于流变理论和试验测试,经过分析建立了符合高家梁煤矿工程实际的蠕变模型,并结合ANSYS提供的蠕变模型,拟合得到应用于模拟的蠕变参数;通过对无支护斜井的蠕变模拟,揭示了高家梁煤矿围岩蠕变的基本规律,并对各个深度和时间的蠕变进行了计算分析;通过对锚喷支护斜井的蠕变模拟,得到了锚喷支护对围岩蠕变的作用和不同支护参数对围岩蠕变的影响。
It's indispensable to study the nature of creep of soft rock when we study the stability of a mine of soft rock. To calculate and to simulate the creep behavior of rock accurately is going to have a significance for the choice of support and control programs of surrounding rock.
To address the problem of creep of the softrock in GaoJiaLiang coal mine, This article, Based on rheological theory and experimental test, through analysis, established the realistic creep model of the coal mine. Then, with combinning the creep model provided by ANSYS, we obtained the creep parameters for simulation through fitting; Through the simulation of the tunnel not supported, the basic creep regulation of GaoJiaLiang coal mine has been revealed. Then we calculated and analysised the creeps of all depth and time. Through the simulation of the anchor bolting tunnel, we obtained the Supporting function from anchor bolting to creep and the effect to creep caused by the changes of creep parameters.
针对高家梁煤矿软岩蠕变问题,本文基于流变理论和试验测试,经过分析建立了符合高家梁煤矿工程实际的蠕变模型,并结合ANSYS提供的蠕变模型,拟合得到应用于模拟的蠕变参数;通过对无支护斜井的蠕变模拟,揭示了高家梁煤矿围岩蠕变的基本规律,并对各个深度和时间的蠕变进行了计算分析;通过对锚喷支护斜井的蠕变模拟,得到了锚喷支护对围岩蠕变的作用和不同支护参数对围岩蠕变的影响。
It's indispensable to study the nature of creep of soft rock when we study the stability of a mine of soft rock. To calculate and to simulate the creep behavior of rock accurately is going to have a significance for the choice of support and control programs of surrounding rock.
To address the problem of creep of the softrock in GaoJiaLiang coal mine, This article, Based on rheological theory and experimental test, through analysis, established the realistic creep model of the coal mine. Then, with combinning the creep model provided by ANSYS, we obtained the creep parameters for simulation through fitting; Through the simulation of the tunnel not supported, the basic creep regulation of GaoJiaLiang coal mine has been revealed. Then we calculated and analysised the creeps of all depth and time. Through the simulation of the anchor bolting tunnel, we obtained the Supporting function from anchor bolting to creep and the effect to creep caused by the changes of creep parameters.
引文
[1]何满潮,景海河,孙晓明.软岩工程力学[M].北京:科学出版社,2002.
[2]陈宗基.地下巷道长期稳定性的力学问题[J].岩石力学与工程学报,1982(1):1-8.
[3]徐平,杨挺青.岩石流变试验与本构模型辨识[J].岩石力学与工程学报,2001,12.
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[6]周瑞光.一项岩体地下硐室工程建设中的岩体力学特性研究[J].岩体工程地质力学问题.科学出版社,1990.
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[8]李青麒.软岩蠕变参数的曲线拟合计算方法[J].岩石力学与工程学报,1998(5):559-564.
[9]吴立新.煤岩流变模型与地表二次沉陷研究[J].地质力学学报,1997(3):29-34.
[10]吴立新.煤柱设计与监测基础[M].北京:中国矿业大学出版社,2000.
[11]郭志.软岩流变过程与强度研究[J].工程地质学报,1996(1):75-79.
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[28]孙钧.岩土材料流变及其工程应用[M].北京:中国建筑工业出版社,1999.
[29]徐日庆,龚晓南.粘弹性本构模型的识别与变形预报[J].水利学报,1998,(4):75-80.
[30]陈有亮.岩石蠕变断裂特性的试验研究[J].力学学报,2003,4.
[31]蔡美峰.岩石力学与工程[M].北京:科学出版社,2005.
[32]朱浮声,薛琳.粘弹性围岩力学参数反分析的一种数值法[J].岩石力学与工程学报,1997,16(5):478-482.
[33]袁静,龚晓南,益德清.岩土流变模型的比较研究[J].岩石力学与工程学报,2001,20(6):772-779.
[34]邓广哲,朱维申.蠕变裂隙扩展与岩石长时强度效应实验研究[J].实验力学,Vol.17,No.2,2002,1.
[35]李青麒.软岩蠕变参数的曲线拟合计算方法[J].岩石力学与工程学报,Vb1.17,No.5,1998,10.
[36]李芳成,谭云亮,龚昌云.高应力深部斜井优化加固技术[J].有色金属,Vol.No3,2001.a
[37]Malan D F.Time-dependent behavior of deep level tabular excavations in hard rock[J].Rock Mechanics and Rock Engineering,1999,32(2):123-155.
[38]Horri H,Nemat-Nasser S.Overall moduli of solids with microcracks:load-induced anisotropy[J].J.Mech.Phys.Solids,1983,31:155-171.
[39]Biot.MA.Theory of stress-strain relations in an isotropic viscoelasticity and relation phenomena[J].JAppPhy,1954,25(11):1385-1391
[40]Cristescu N,Fota D,Medves E.Tunnel support analysis incorporating rockcreep.Int J Rock Mech Min Sci&Geomech Abstr,1987,24(6):321-330
[41]Zinkie wicz O C,Cormeau I C.Visco-plasticity and creep in elastic solids a unified numerical solution approach[J].Int J Num Nbth in Engrg,1974,(8):821-845.
[42]Cormeau I.Numerical stability in quasi7static elasto-viscoplasticity[J].Int J Num Meth in Engrg,1975,(9):109-127.
[2]陈宗基.地下巷道长期稳定性的力学问题[J].岩石力学与工程学报,1982(1):1-8.
[3]徐平,杨挺青.岩石流变试验与本构模型辨识[J].岩石力学与工程学报,2001,12.
[4]盛建龙.岩石蠕变及抗剪特征分析[J].西部探矿工程,2001(021).
[5]何满潮,景河海,孙晓明.软岩工程力学[M].科学出版社,2002.
[6]周瑞光.一项岩体地下硐室工程建设中的岩体力学特性研究[J].岩体工程地质力学问题.科学出版社,1990.
[7]许洪发.软岩强度和弹模的时间效应研究[J].岩石力学与工程学报,1997(16):246-251.
[8]李青麒.软岩蠕变参数的曲线拟合计算方法[J].岩石力学与工程学报,1998(5):559-564.
[9]吴立新.煤岩流变模型与地表二次沉陷研究[J].地质力学学报,1997(3):29-34.
[10]吴立新.煤柱设计与监测基础[M].北京:中国矿业大学出版社,2000.
[11]郭志.软岩流变过程与强度研究[J].工程地质学报,1996(1):75-79.
[12]金丰年,蒲奎英.关于粘弹性模型的讨论[J].岩石力学与工程学报,1995,11.
[13]朱明亮.矿山巷道收敛量测与分析[J].矿业研究与开发,1999,12.
[14]宋海涛等.锚杆支护现状及其发展[J].矿山压力与顶板管理,1999,No.1.
[15]齐珺.深部岩体非线性蠕变规律的研究.硕士学位论文,辽宁工程技术大学,2004.
[16]王国强,实用工程数值模拟技术及其在ANSYS上的实践[M].西北工业大学出版社,1999,8.
[17]周维垣.高等岩石力学[M].北京:水利电力出版社,1990,6.
[18]郑雨天.岩土力学的弹塑粘性理论基础[M].北京:煤炭工业出版社,1988.
[19]关宝树,杨其新.地下工程概论[M].成都:西南交通大学出版社,2001,3.
[20]徐干成,白洪才,郑颖人等.地下工程支护结构[M].北京:中国水利水电出版社.2002.
[21]王助成,邵敏编著.有限单元法基本原理和数值方法[M].北京:清华大学出版社,1996.
[22]陈沉江,潘长良,王文星.软岩流变的一种新的试验研究方法[J].力学与实践,2002,04.
[23]何兵.用有限元模拟软岩蠕变对隧道结构的影响[J].重庆交通学院学报,2003,04.
[24]罗清明,李亮,杨小礼.软岩隧道的围岩变形计算[J].长沙铁道学院学报,2003,02.
[25]徐平,杨挺青.岩石流变试验与本构模型识别[J].岩石力学与工程学报,2001,10.
[26]范广勤.岩土工程流变力学[M].北京:煤炭工业出版社,1993.
[27]刘雄.岩石流变学概论[M].北京:地质出版社,1994.
[28]孙钧.岩土材料流变及其工程应用[M].北京:中国建筑工业出版社,1999.
[29]徐日庆,龚晓南.粘弹性本构模型的识别与变形预报[J].水利学报,1998,(4):75-80.
[30]陈有亮.岩石蠕变断裂特性的试验研究[J].力学学报,2003,4.
[31]蔡美峰.岩石力学与工程[M].北京:科学出版社,2005.
[32]朱浮声,薛琳.粘弹性围岩力学参数反分析的一种数值法[J].岩石力学与工程学报,1997,16(5):478-482.
[33]袁静,龚晓南,益德清.岩土流变模型的比较研究[J].岩石力学与工程学报,2001,20(6):772-779.
[34]邓广哲,朱维申.蠕变裂隙扩展与岩石长时强度效应实验研究[J].实验力学,Vol.17,No.2,2002,1.
[35]李青麒.软岩蠕变参数的曲线拟合计算方法[J].岩石力学与工程学报,Vb1.17,No.5,1998,10.
[36]李芳成,谭云亮,龚昌云.高应力深部斜井优化加固技术[J].有色金属,Vol.No3,2001.a
[37]Malan D F.Time-dependent behavior of deep level tabular excavations in hard rock[J].Rock Mechanics and Rock Engineering,1999,32(2):123-155.
[38]Horri H,Nemat-Nasser S.Overall moduli of solids with microcracks:load-induced anisotropy[J].J.Mech.Phys.Solids,1983,31:155-171.
[39]Biot.MA.Theory of stress-strain relations in an isotropic viscoelasticity and relation phenomena[J].JAppPhy,1954,25(11):1385-1391
[40]Cristescu N,Fota D,Medves E.Tunnel support analysis incorporating rockcreep.Int J Rock Mech Min Sci&Geomech Abstr,1987,24(6):321-330
[41]Zinkie wicz O C,Cormeau I C.Visco-plasticity and creep in elastic solids a unified numerical solution approach[J].Int J Num Nbth in Engrg,1974,(8):821-845.
[42]Cormeau I.Numerical stability in quasi7static elasto-viscoplasticity[J].Int J Num Meth in Engrg,1975,(9):109-127.