| 适于全断面岩石掘进机的围岩分类方法 |
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| 引用本文： | 卢瑾,吴继敏,廖小帆. 适于全断面岩石掘进机的围岩分类方法[J]. 重庆大学学报(自然科学版), 2011, 34(2): 136-141 |
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| 作者姓名： | 卢瑾 吴继敏 廖小帆 |
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| 作者单位： | 中国科学院成都山地灾害与环境研究所;河海大学土木工程学院;四川电力设计咨询有限责任公司; |
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| 基金项目： | 国家科技支撑计划资助项目(2006BAB04A06) |
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| 摘 要： | 为了研究影响全断面岩石掘进机(TBM)掘进速率的地质因素,利用三维离散元程序3DEC建立TBM滚刀破岩三维仿真模型,分析不同的地质条件对TBM掘进速率的影响,根据TBM在围岩中的可钻性对南水北调西线工程中的围岩进行分类。分析结果表明:TBM掘进速率与岩石物理力学性质及岩体中的节理条件密切相关,在一定范围内,围岩强度越低,节理分布越密集,TBM掘进速率越高;而围岩强度越高,节理间距越大,使得TBM掘进速率大大降低。
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| 关 键 词： | 全断面岩石掘进机 围岩强度 节理 掘进速率 离散元 围岩分类 |
| 收稿时间： | 2010-09-21 |
Rock classification method for tunnel boring machine |
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| LU Jin,WU Ji-min and LIAO Xiao-fan. Rock classification method for tunnel boring machine[J]. Journal of Chongqing University(Natural Science Edition), 2011, 34(2): 136-141 |
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| Authors: | LU Jin WU Ji-min LIAO Xiao-fan |
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| Affiliation: | LU Jin1,WU Ji-min2,LIAO Xiao-fan3(1.Institute of Mountain Hazards and Environment,CAS,Chengdu 610041,Sichuan,P.R.China,2.College of Civil Engineering,Hohai University,Nanjing 210098,Jiangsu,3.Sichuan Electric Power Design and Consulting Co.,LTD,Chengdu 610061,P.R.China) |
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| Abstract: | In order to study the geological factors which impact penetrating rate of tunnel boring machine(TBM),this paper uses three-dimensional discrete element model 3DEC to build simulated models on rock fragment by TBM cutter.It analyzes the influence of different geological conditions on TBM penetrating rate and classified the surrounding rock in west route of south-to-north transfer project according to the drill ability of TBM in surrounding rock.The results show that the penetrating rate of TBM is closely rel... |
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| Keywords: | tunnel boring machine(TBM) rock strength joint penetrating rate discrete element model rock classification |
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