基于围岩松动圈现场测试的深部软岩巷道支护技术优化
|
摘要
采用围岩松动圈支护理论,在支护设计前,用BA-Ⅱ型围岩松动圈测试仪对马路坪矿640中段运输大巷新开挖的20 m巷道进行了围岩松动圈测试,并用数值模拟的方法对测试结果进行了验证。对目前使用的支护形式进行了优化设计,并在640中段运输大巷进行了工业性试验,试验结果表明,改进的支护形式是最优的,为马路坪矿深部开拓工程的支护设计提供了技术参考。
By adopting support theory based on excavation damage zone,the extent of excavation damage zone was measured with BA-Ⅱ loose zone tester for the newly excavated 20 m roadway in 640 m level transportation roadway.Test results were verified with numerical simulation methods.The existing support method was optimized and an commercial test was performed for 640 m level transportation roadway.Test results show that the improved support method is the best,which can provide technical references for support designs of deep development works in Maluping Mine.
By adopting support theory based on excavation damage zone,the extent of excavation damage zone was measured with BA-Ⅱ loose zone tester for the newly excavated 20 m roadway in 640 m level transportation roadway.Test results were verified with numerical simulation methods.The existing support method was optimized and an commercial test was performed for 640 m level transportation roadway.Test results show that the improved support method is the best,which can provide technical references for support designs of deep development works in Maluping Mine.
引文
[1]Gurtunca R G,Keynote L.Mining below 3000 m and challenges forthe South African gold mining industry[C]∥Proceedings of Mechan-ics of Jointed and Fractured Rock.Rotterd am:A A Balkema,1998:3-10.
[2]Johnson R A S.Mining at ultra-depth,evaluation of alternations[C]∥Proceedings of the2nd North America Rock Mechanics Symposium.Montreal:NARMS'96,1996:359-366.
[3]古德生,李夕兵.有色金属深井采矿研究现状与科学前沿[J].矿业研究与开发,2003,23(2):1-5.
[4]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):21-31.
[5]董方庭.巷道围岩松动圈支护理论及应用技术[M].北京:煤炭工业出版社,2001.
[6]孙有为.地下洞室的几何性质对松动圈的影响[D].哈尔滨:中国地震局工程力学研究所,2006.
[7]Sato T,Kikuchi T,Sugihara K.In-situ experiments on an excavationdisturbed zone induced by mechanical excavation in Neogene sedimen-tary rock at Tono mine,central Japan[J].Engineering Geology,2000,56:97-108.
[8]Martino J B,Chandler N A.Excavation-induced damage studies at theUnderground Research Laboratory[J].International Journal of RockMechanics and Mining Sciences,2004,41:1413-1426.
[9]Chin-Fu Tsang,Bernier F,Davies C.Geohydromechanical processesin the Excavation Damaged Zone in crystalline rock,rock salt,and in-durated and plastic clays——in the context of radioactive waste dis-posal[J].International Journal of Rock Mechanics and Mining Sci-ences,2005,42:109-125.
[10]Golshani A,Oda M,Okui Y,et al.Numerical simulation of the exca-vation damaged zone around an opening in brittle rock[J].Interna-tional Journal of Rock Mechanics and Mining Sciences,2007,44:835-845.
[11]高玮,郑颖人.巷道围岩松动圈预测的进化神经网络法[J].岩石力学与工程学报,2002,21(5):658-661.
[12]马文涛.参数优化LSSVM的巷道围岩松动圈预测研究[J].岩土力学,2007,28(增):460-464.
[13]李宁,段小强,陈方方,等.围岩松动圈的弹塑性位移反分析方法探索[J].岩石力学与工程学报,2006,25(7):1304-1308.
[14]倪绍虎,肖明.基于围岩松动圈的地下工程参数场位移反分析[J].岩石力学与工程学报,2009,28(7):1339-1446.
[15]松动圈分区模型及其在地下工程反馈分析中的应用[J].岩石力学与工程学报,2010,29(增1):3216-3220.
[2]Johnson R A S.Mining at ultra-depth,evaluation of alternations[C]∥Proceedings of the2nd North America Rock Mechanics Symposium.Montreal:NARMS'96,1996:359-366.
[3]古德生,李夕兵.有色金属深井采矿研究现状与科学前沿[J].矿业研究与开发,2003,23(2):1-5.
[4]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):21-31.
[5]董方庭.巷道围岩松动圈支护理论及应用技术[M].北京:煤炭工业出版社,2001.
[6]孙有为.地下洞室的几何性质对松动圈的影响[D].哈尔滨:中国地震局工程力学研究所,2006.
[7]Sato T,Kikuchi T,Sugihara K.In-situ experiments on an excavationdisturbed zone induced by mechanical excavation in Neogene sedimen-tary rock at Tono mine,central Japan[J].Engineering Geology,2000,56:97-108.
[8]Martino J B,Chandler N A.Excavation-induced damage studies at theUnderground Research Laboratory[J].International Journal of RockMechanics and Mining Sciences,2004,41:1413-1426.
[9]Chin-Fu Tsang,Bernier F,Davies C.Geohydromechanical processesin the Excavation Damaged Zone in crystalline rock,rock salt,and in-durated and plastic clays——in the context of radioactive waste dis-posal[J].International Journal of Rock Mechanics and Mining Sci-ences,2005,42:109-125.
[10]Golshani A,Oda M,Okui Y,et al.Numerical simulation of the exca-vation damaged zone around an opening in brittle rock[J].Interna-tional Journal of Rock Mechanics and Mining Sciences,2007,44:835-845.
[11]高玮,郑颖人.巷道围岩松动圈预测的进化神经网络法[J].岩石力学与工程学报,2002,21(5):658-661.
[12]马文涛.参数优化LSSVM的巷道围岩松动圈预测研究[J].岩土力学,2007,28(增):460-464.
[13]李宁,段小强,陈方方,等.围岩松动圈的弹塑性位移反分析方法探索[J].岩石力学与工程学报,2006,25(7):1304-1308.
[14]倪绍虎,肖明.基于围岩松动圈的地下工程参数场位移反分析[J].岩石力学与工程学报,2009,28(7):1339-1446.
[15]松动圈分区模型及其在地下工程反馈分析中的应用[J].岩石力学与工程学报,2010,29(增1):3216-3220.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心