采动影响下28变电所耦合加固技术研究
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摘要
软岩巷道的围岩稳定性控制,尤其是动压软岩巷道的围岩稳定性控制,一直是采矿工程难点问题之一。工作面的开采引起回采空间周围岩层应力重新分布,不仅在回采空间周围的煤柱上造成应力集中,而且它形成的超前支承压力将影响工作面前方巷道围岩的应力分布,造成巷道严重变形失稳。论文针对米村矿28变电所的具体地质采矿条件,运用理论分析、数值模拟、现场试验等方法,详细分析了在28031工作面开采影响下,28变电所围岩应力分布情况及围岩状态,提出了耦合加固技术。文章还分析了耦合加固技术中几个关键问题,研究了支架围岩关系及原有巷道支护失稳破坏原因,探讨了注浆浆液扩散机理,以及不同注浆压力、水灰比、注浆顺序与浆液扩散半径之间的关系、注浆压力随浆液扩散在围岩中的衰减规律。提出了耦合支护技术措施,分析了锚索托梁布置位置、布置方式对支护承载结构补偿作用影响。在上述分析基础上,结合米村矿28变电所的地质条件进行了现场实验。耦合加固技术在现场实践中得到了成功的应用。本论文研究成果为采动影响下巷道支护提供重要的技术参考,具有良好的经济效益和社会效益,对其它相似动压影响的巷道支护有一定的指导意义。
本论文有图40幅,表9个,参考文献57篇。
The steady control of softrock roadway, especially the control under dynamic pressure softrock roadway is always one of the most difficult problems in mining project. The reassigned of stress caused by mining is not only centralized in the coal pillar arounding the mining area, but also transported to the frontage roadways and caused the roadways serious distortion. In relation to the mining geological condition of Micun 28 transformer substation, with theoretical analysis, practical observation and numerical simulation, the main equations of stability of roadways under 28031 working face influenced was analyzed in this thesis. Furthermore, it provided the coupling structure support. Aimed at some key questions of the coupling support structure, the thesis investigated the interaction of support and rock, the failure and instability analysis of roadways; Study on spread principal of grout, the relation of grouting diffusion radius with different grouting pressure, different water cement ratio and different grouting sequence, furthermore, the grouting pressure attenuation rule is analyzed; It has proposed the technical measure of coupling support structure has been proposed, analyzed the impact of the position and arranged the cable joist to structural amendment of support bearing. Based on above analysis, combination with the mining geological condition of 28 transformer substation, the coupling support has been successfully used in engineering and practice. The research achievements of this thesis will provide the important technique reference to support of roadway influenced by the dynamic pressure. With the excellent social and economic benefit, it has great guide significance not only for the experiment roadway, but as to other roadway support under the dynamic pressure influenced.
There are 40 figures, 9 tables and 57 references in this thesis.
本论文有图40幅,表9个,参考文献57篇。
The steady control of softrock roadway, especially the control under dynamic pressure softrock roadway is always one of the most difficult problems in mining project. The reassigned of stress caused by mining is not only centralized in the coal pillar arounding the mining area, but also transported to the frontage roadways and caused the roadways serious distortion. In relation to the mining geological condition of Micun 28 transformer substation, with theoretical analysis, practical observation and numerical simulation, the main equations of stability of roadways under 28031 working face influenced was analyzed in this thesis. Furthermore, it provided the coupling structure support. Aimed at some key questions of the coupling support structure, the thesis investigated the interaction of support and rock, the failure and instability analysis of roadways; Study on spread principal of grout, the relation of grouting diffusion radius with different grouting pressure, different water cement ratio and different grouting sequence, furthermore, the grouting pressure attenuation rule is analyzed; It has proposed the technical measure of coupling support structure has been proposed, analyzed the impact of the position and arranged the cable joist to structural amendment of support bearing. Based on above analysis, combination with the mining geological condition of 28 transformer substation, the coupling support has been successfully used in engineering and practice. The research achievements of this thesis will provide the important technique reference to support of roadway influenced by the dynamic pressure. With the excellent social and economic benefit, it has great guide significance not only for the experiment roadway, but as to other roadway support under the dynamic pressure influenced.
There are 40 figures, 9 tables and 57 references in this thesis.
引文
[1]范秋雁.试论软岩支护理论基础研究[J].地下空间,1999.19(4):328-337
[2]杜计平,苏景春.煤矿深井开采的矿压显现及控制[M].中国矿业大学出版社,2000.4
[3]刘长武,褚秀生.软岩巷道锚注加固原理与应用[M],中国矿业大学出版社,2000.11
[4]范秋雁,朱维申.软岩最优支护计算方法[J].岩土工程学报,1997.19(2):78-83
[5]王卫军.回采巷道底鼓力学原理及控制技术研究[D].中国矿业大学,2001.6
[6]何满潮,邹正盛,邹友锋.软岩巷道工程概论[M].中国矿业大学出版社,1993.10
[7]曲永新.软弱夹层的工程地质预报.工程地质力学研究[M],地质出版社,1985
[8]曲永新.泥质岩的胶结作用、活化作用与泥质岩的工程分类[M].软岩巷道掘进与支护论文选编,1985.9
[9]曲永新.对中国东部膨胀岩的研究[J].软岩工程,1991.1
[10]何满潮,景海河,孙晓明.软岩工程地质力学研究进展[J].工程地质学报,2000.8(1):46-60
[11]何满潮.煤矿软岩工程技术现状及展望[J].中国煤炭,1999.25(8):12-21
[12] Peng S.S. Time-dependent Aspects of Rock Behavior as Measured by a Servocontrolled Hydra Machine. Int J Rock Mech Min Sci, 1973.10:235-246
[13]范秋雁.软岩流变地压控制原理[J].中国矿业,1996.5(4):48-54
[14]范秋雁.对软岩定义和巷道临界埋深的讨论[J].矿山压力与顶板管理,1995.3:115-117
[15]胡玉银.大埋深软岩巷道围岩变形破坏力学机制分析[J].水文地质工程地质,1994.6:4-6
[16]彭涛,何满潮.煤矿软岩混沌力学特性的研究[J].矿山压力与顶板管理,1997.1:32-35
[17]彭涛.软岩工程的混沌控制支护理论初探[J].矿山压力与顶板管理,1998.2:34-36
[18]郭志.软岩流变过程与强度研究[J].工程地质学报,1996.4(1):75-79
[19]潘立友.软岩底板侵入理论与实践[J].岩土工程学报,1998.20(2):48-50
[20]刘高.高地应力区结构性流变围岩稳定性研究[D].兰州大学,2001.10
[21]侯朝炯,何亚男.《软岩巷道底鼓机理与防治的研究》总结报告.1997.10
[22] F.O.Franclss.Weak Rock Tunneling.A.A.Balkema Press,1997
[23] Najdat I . &S . Peng . GroundControlinMining . WestVirginiaUniversity Press,July,1992
[24] Kidybinski&J.Dubiski.TrataControlinDeepMines,A.A.Balkema Press,1990
[25] E.Hoek,E.T.Brown.Underground Excavation in Rock.Published by the Institution of Mining an Metallurgy,1980
[26]董方庭.巷道围岩松动圈支护理论及应用技术[M].煤炭工业出版社,2001.10
[27]康红普.高强度锚杆支护技术的发展与应用.煤炭科学技术,2000,28(2):1-4
[28]侯朝炯,郭励生,勾攀峰.煤巷锚杆支护.徐州:中国矿业大学出版社,1999
[29]康红普,煤巷锚杆支护测试与设计.地下钻掘采工程不稳定理论与控制技术.北京:中国科学技术出版社,1999
[30]陈炎光,陆士良.中国煤矿巷道围岩控制.徐州:中国矿业大学出版社,1994
[31]谢文兵,陈晓祥,郑百生.采矿工程问题数值模拟研究与分析.徐州:中国矿业大学出版社,2005
[32] Itasa Consulting Group ,Ins. FLAC3D 1.8 Version 1.8,2002
[33]郑百生.近距离跨采巷道围岩控制技术及其三维数值模拟.硕士学位论文,中国矿业大学,2005
[34] Cundall,P.A.,Distinct element models of rock and soil structure. E.T.Br own(ed),Analytical & comp.methods Engrg. Rock Medn,1987,129-163
[35] E.Hoek Technical Note Estimation Mohr-Coulomb Friction and Cohesion Values from the Hoek-Brown Failure Criterion.Int.J.Rock Mech Min.Sci&Geomech.Abstrm16990, 27(3),227-229
[36]刘波,韩彦辉.FLAC原理、实例及工程应用.北京:人们交通出版社,2005
[37] Row P W.The stress-dilatency relation for static equilibrium of an assembly of particles in contact.Proceeeding of Royal Society,London,Series A,269,1962:500-527
[38]杨坪,彭振斌,李奋强.巷道注浆加固作用机理及计算模型研究.矿冶工程,2005,25(1):3-5
[39] Starfield A M, Cundall P A. Towards a methodology for rock mechanics modeling [J]. Int J Rock Mech Min Sci and Geomech Abstr,1998,25(3):99-106
[40]陆士良,汤雷等.锚杆锚固力与锚固技术.北京:煤炭工业出版社,1998
[43]郑百生、谢文兵、陈晓祥.煤矿跨采巷道围岩加固机理分析.煤炭科学技术,2004,5:37-41
[42]何满朝,邹正盛,邹友峰.软岩巷道工程概论.北京:中国矿业大学出版社,1993
[43]王悦汉,王彩银,周华强.巷道支架壁后充填技术.北京:煤炭工业出版社,1995
[44]谢文兵,陈玉华,陆士良.软岩硐室围岩作用关系分析.湖南科技大学学报,2004,2(19):6-9
[45]谢文兵.软岩硐室失稳和锚注加固机理研究.博士学位论文.徐州:中国矿业大学,1999
[46]谢文兵,陆士良,杨米加等.支护-围岩接触关系与软岩硐室失稳破坏的研究.中国矿业大学学报,1999,28(5):445-448
[47] Leung,C.F.,Rock Mech,Rock Engrg,1990,23:71-89
[48] Hoek E. and Brown E.T. The Hoek-Brown failure criterion-a 1988 update.ISRM.1994,(10):9-17
[49] N Mohammand.The Relation between in situ and Laboratory Rock Properties used in numerical Modeling [J],int .J.Rockmech.Min.Sci.1997,34(2):289-297
[50]杜嘉鸿,张崇瑞,何修仁等.地下建筑注浆工程简明手册.北京:科学出版社,1992[43]葛家良.注浆技术的现状与发展趋向综述.矿业世界,1995,(1)1-7
[51]《岩土注浆理论与工程实例》协作组.岩土注浆理论与工程实例.北京:科学出版社,2001
[52]朱焕春,Andrieux Patrick,钟辉亚.节理岩体数值计算方法及其应用(一):工程应用.岩石力学与工程学报,2005,24(1):89-96
[53] Itasa Consulting Group ,Ins. UDEC Version 1.8,1992
[54]葛家良.软岩巷道注浆加固机理及注浆技术若干问题的研究.博士学位论文.徐州:中国矿业大学, 1996
[55]陶连金,姜德义,孙广义等.节理岩体中地下水流动的离散元模拟.煤炭学报,2000 25(1):1-4.
[56]中华人民共和国水利部.水工建筑物水泥灌浆施工技术规范.北京:中国水利水电出版社,2004.
[57] Pan, Qixin,Chang, Laishan. A study of application about FLAC-3D in damage of rock mass slope[J]. Trans Tech Publications Ltd, Zurich-Ueticon, CH-8707, Switzerland, v 306-308 II, p 1427-1432.
[2]杜计平,苏景春.煤矿深井开采的矿压显现及控制[M].中国矿业大学出版社,2000.4
[3]刘长武,褚秀生.软岩巷道锚注加固原理与应用[M],中国矿业大学出版社,2000.11
[4]范秋雁,朱维申.软岩最优支护计算方法[J].岩土工程学报,1997.19(2):78-83
[5]王卫军.回采巷道底鼓力学原理及控制技术研究[D].中国矿业大学,2001.6
[6]何满潮,邹正盛,邹友锋.软岩巷道工程概论[M].中国矿业大学出版社,1993.10
[7]曲永新.软弱夹层的工程地质预报.工程地质力学研究[M],地质出版社,1985
[8]曲永新.泥质岩的胶结作用、活化作用与泥质岩的工程分类[M].软岩巷道掘进与支护论文选编,1985.9
[9]曲永新.对中国东部膨胀岩的研究[J].软岩工程,1991.1
[10]何满潮,景海河,孙晓明.软岩工程地质力学研究进展[J].工程地质学报,2000.8(1):46-60
[11]何满潮.煤矿软岩工程技术现状及展望[J].中国煤炭,1999.25(8):12-21
[12] Peng S.S. Time-dependent Aspects of Rock Behavior as Measured by a Servocontrolled Hydra Machine. Int J Rock Mech Min Sci, 1973.10:235-246
[13]范秋雁.软岩流变地压控制原理[J].中国矿业,1996.5(4):48-54
[14]范秋雁.对软岩定义和巷道临界埋深的讨论[J].矿山压力与顶板管理,1995.3:115-117
[15]胡玉银.大埋深软岩巷道围岩变形破坏力学机制分析[J].水文地质工程地质,1994.6:4-6
[16]彭涛,何满潮.煤矿软岩混沌力学特性的研究[J].矿山压力与顶板管理,1997.1:32-35
[17]彭涛.软岩工程的混沌控制支护理论初探[J].矿山压力与顶板管理,1998.2:34-36
[18]郭志.软岩流变过程与强度研究[J].工程地质学报,1996.4(1):75-79
[19]潘立友.软岩底板侵入理论与实践[J].岩土工程学报,1998.20(2):48-50
[20]刘高.高地应力区结构性流变围岩稳定性研究[D].兰州大学,2001.10
[21]侯朝炯,何亚男.《软岩巷道底鼓机理与防治的研究》总结报告.1997.10
[22] F.O.Franclss.Weak Rock Tunneling.A.A.Balkema Press,1997
[23] Najdat I . &S . Peng . GroundControlinMining . WestVirginiaUniversity Press,July,1992
[24] Kidybinski&J.Dubiski.TrataControlinDeepMines,A.A.Balkema Press,1990
[25] E.Hoek,E.T.Brown.Underground Excavation in Rock.Published by the Institution of Mining an Metallurgy,1980
[26]董方庭.巷道围岩松动圈支护理论及应用技术[M].煤炭工业出版社,2001.10
[27]康红普.高强度锚杆支护技术的发展与应用.煤炭科学技术,2000,28(2):1-4
[28]侯朝炯,郭励生,勾攀峰.煤巷锚杆支护.徐州:中国矿业大学出版社,1999
[29]康红普,煤巷锚杆支护测试与设计.地下钻掘采工程不稳定理论与控制技术.北京:中国科学技术出版社,1999
[30]陈炎光,陆士良.中国煤矿巷道围岩控制.徐州:中国矿业大学出版社,1994
[31]谢文兵,陈晓祥,郑百生.采矿工程问题数值模拟研究与分析.徐州:中国矿业大学出版社,2005
[32] Itasa Consulting Group ,Ins. FLAC3D 1.8 Version 1.8,2002
[33]郑百生.近距离跨采巷道围岩控制技术及其三维数值模拟.硕士学位论文,中国矿业大学,2005
[34] Cundall,P.A.,Distinct element models of rock and soil structure. E.T.Br own(ed),Analytical & comp.methods Engrg. Rock Medn,1987,129-163
[35] E.Hoek Technical Note Estimation Mohr-Coulomb Friction and Cohesion Values from the Hoek-Brown Failure Criterion.Int.J.Rock Mech Min.Sci&Geomech.Abstrm16990, 27(3),227-229
[36]刘波,韩彦辉.FLAC原理、实例及工程应用.北京:人们交通出版社,2005
[37] Row P W.The stress-dilatency relation for static equilibrium of an assembly of particles in contact.Proceeeding of Royal Society,London,Series A,269,1962:500-527
[38]杨坪,彭振斌,李奋强.巷道注浆加固作用机理及计算模型研究.矿冶工程,2005,25(1):3-5
[39] Starfield A M, Cundall P A. Towards a methodology for rock mechanics modeling [J]. Int J Rock Mech Min Sci and Geomech Abstr,1998,25(3):99-106
[40]陆士良,汤雷等.锚杆锚固力与锚固技术.北京:煤炭工业出版社,1998
[43]郑百生、谢文兵、陈晓祥.煤矿跨采巷道围岩加固机理分析.煤炭科学技术,2004,5:37-41
[42]何满朝,邹正盛,邹友峰.软岩巷道工程概论.北京:中国矿业大学出版社,1993
[43]王悦汉,王彩银,周华强.巷道支架壁后充填技术.北京:煤炭工业出版社,1995
[44]谢文兵,陈玉华,陆士良.软岩硐室围岩作用关系分析.湖南科技大学学报,2004,2(19):6-9
[45]谢文兵.软岩硐室失稳和锚注加固机理研究.博士学位论文.徐州:中国矿业大学,1999
[46]谢文兵,陆士良,杨米加等.支护-围岩接触关系与软岩硐室失稳破坏的研究.中国矿业大学学报,1999,28(5):445-448
[47] Leung,C.F.,Rock Mech,Rock Engrg,1990,23:71-89
[48] Hoek E. and Brown E.T. The Hoek-Brown failure criterion-a 1988 update.ISRM.1994,(10):9-17
[49] N Mohammand.The Relation between in situ and Laboratory Rock Properties used in numerical Modeling [J],int .J.Rockmech.Min.Sci.1997,34(2):289-297
[50]杜嘉鸿,张崇瑞,何修仁等.地下建筑注浆工程简明手册.北京:科学出版社,1992[43]葛家良.注浆技术的现状与发展趋向综述.矿业世界,1995,(1)1-7
[51]《岩土注浆理论与工程实例》协作组.岩土注浆理论与工程实例.北京:科学出版社,2001
[52]朱焕春,Andrieux Patrick,钟辉亚.节理岩体数值计算方法及其应用(一):工程应用.岩石力学与工程学报,2005,24(1):89-96
[53] Itasa Consulting Group ,Ins. UDEC Version 1.8,1992
[54]葛家良.软岩巷道注浆加固机理及注浆技术若干问题的研究.博士学位论文.徐州:中国矿业大学, 1996
[55]陶连金,姜德义,孙广义等.节理岩体中地下水流动的离散元模拟.煤炭学报,2000 25(1):1-4.
[56]中华人民共和国水利部.水工建筑物水泥灌浆施工技术规范.北京:中国水利水电出版社,2004.
[57] Pan, Qixin,Chang, Laishan. A study of application about FLAC-3D in damage of rock mass slope[J]. Trans Tech Publications Ltd, Zurich-Ueticon, CH-8707, Switzerland, v 306-308 II, p 1427-1432.