滑坡内隧道变形模式与荷载计算方法
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摘要
近年来,运营期铁路隧道发生病害的比例逐年提高,其中以位于滑坡体内隧道的破坏最为严重,对铁路的安全运营造成了严重的威胁,然而我国目前对位于滑体内隧道的设计还没有形成统一的认识和标准,没有完整的计算理论。本文以隧道-滑坡中隧道穿越滑体为研究对象,从运营隧道的病害特征入手,通过对工程中的具体隧道-滑坡实例进行调查、归纳、总结,建立相应的工程地质模型。然后对该类模型在围岩压力和滑坡推力作用下的受力变形情况进行分析,将上部坡体作用于隧道上的滑坡推力与围岩压力进行叠加,得出隧道在滑坡推力作用下的受力图示和荷载计算公式,从而为滑坡地段隧道的设计提供参考。
In recent years,the proportion of railway tunnel diseases in the operation period has increased,among which the damage to the tunnel in the landslide is the most serious and has posed a serious threat to the safe operation of railway.However,at present,there is no uniform understanding and standard for the design of tunnel located in the sliding body in our country.Relevant calculation theory is also uncompleted.In this paper,the tunnel crossing landslide is taken as the research object and starting from the disease characteristics of the operation tunnel.Through the investigation,induction and summary of the specific tunnel landslide examples in the project,the corresponding engineering geological model is established.Then the stress and deformation of the model under the action of surrounding rock pressure and landslide thrust are analyzed,the upper slope in tunnel landslide thrust and rock pressure are superimposed to produce the tunnel in landslide thrust under the action of the force diagram and load calculation formula.The results can provide reference for the design of the tunnel landslide site.
In recent years,the proportion of railway tunnel diseases in the operation period has increased,among which the damage to the tunnel in the landslide is the most serious and has posed a serious threat to the safe operation of railway.However,at present,there is no uniform understanding and standard for the design of tunnel located in the sliding body in our country.Relevant calculation theory is also uncompleted.In this paper,the tunnel crossing landslide is taken as the research object and starting from the disease characteristics of the operation tunnel.Through the investigation,induction and summary of the specific tunnel landslide examples in the project,the corresponding engineering geological model is established.Then the stress and deformation of the model under the action of surrounding rock pressure and landslide thrust are analyzed,the upper slope in tunnel landslide thrust and rock pressure are superimposed to produce the tunnel in landslide thrust under the action of the force diagram and load calculation formula.The results can provide reference for the design of the tunnel landslide site.
引文
[1]马惠民.坡体病害与隧道变形问题[J].岩石力学与工程学报,2003,22(S2):2719-2724.MA Huimin. Slope disease and tunnel deformation[J]. Journal of Rock Mechanics and Engineering,2003,22(S2):2719-2724.
[2]张鲁新,周德培.蠕动滑坡成因及隧道变形机理的分析[J].岩石力学与工程学报,1999,18(2):217-221.ZHANG Luxin,ZHOU Depei. Analysis of the causesof creep landslide and analysis of deformationmechanism of tunnel[J]. Journal of Rock Mechanicsand Engineering,1999,18(2):217-221.
[3]毛坚强,周德培.滑坡-隧道相互作用受力变形规律的研究[J].西南交通大学学报,2002,37(4):371-376.MAO Jianqiang,ZHOU Depei. Study on the law ofstress and deformation of landslide tunnel interaction[J]. Journal of Southwest Jiaotong University,2002,37(4):371-376.
[4]王俊伟,林超,吴洁,等.渭河隧道施工对上覆滑坡体扰动影响及施工控制技术研究[J].路基工程,2017(4):185-190.WANG Junwei,LIN Chao,WU Jie,et al. Influenceof Weihe tunnel construction on overlying landslideand construction control technology research[J].Subgrade Engineering,2017(4):185-190.
[5]王玉龙,李德武.孙家崖偏压-滑坡隧道围岩变形和受力特征分析[J].兰州交通大学学报,2014,33(4):98-104.WANG Yulong, LI Dewu. Sunjiaya landslide biastunnel surrounding rock deformation characteristicsand stress analysis[J]. Journal of Lanzhou Jiao TongUniversity,2014,33(4):98-104.
[6]许淑珍,董鹏.纵环向注浆联合支护技术在滑坡体黄土隧道中的应用[J].铁道标准设计,2011(2):103-106.XU Shuzhen, DONG Peng. The application oflongitudinal grouting combined support technology inthe Loess Tunnel of landslide body[J]. RailwayStandard Design,2011(2):103-106.
[7]吴红刚,吴道勇,马惠民,等.隧道-滑坡体系类型和隧道变形模式研究[J].岩石力学与工程学报,2012(S2):3632-3642.WU Honggang,WU Daoyong,MA Huimin,et al.Study on the type of tunnel-landslide system and thedeformation model of tunnel[J]. Journal of RockMechanics and Engineering, 2012(S2):3632-3642.
[8]朱苦竹,朱合华.滑坡与隧道相互作用机理实例分析[J].地下空间与工程学报,2006,2(5):809-812.ZHU Kuzhu,ZHU Hehua. Analysis of the interactionmechanism of landslides and tunnels[J]. Journal ofUnderground Space and Engineering,2006,2(5):809-812.
[9]王建秀,朱合华,唐益群,等.连拱隧道-边坡耦合作用:连拱隧道滑坡[J].土木工程学报,2010(1):103-107.WANG Jianxiu,ZHU Hehua,TANG Yiqun,et al.Coupled arch tunnel-slope coupling effect[J]. CivilEngineering Journal,2010(1):103-107.
[10]范建海,张涛,郭刚,等.李师关隧道洞口滑坡发生机理与防治措施研究[C]//深部岩石工程与岩土灾害防治测试新技术与应用研讨会,2006:1445-1450.FAN Jianhai,ZHANG Tao,GUO Gang,et al. Studyon the occurrence mechanism and prevention measuresof Li Shiguan tunnel portal landslide[C]//DeepRock Engineering and Geotechnical DisasterPrevention and Control Test New Technology andApplication Symposium,2006:1445-1450.
[11]陈小云,吴红刚,艾挥.正交体系下隧道与滑带相交力学模型与加固研究[J].科学技术与工程,2017,17(9):73-78.CHEN Xiaoyun, WU Honggang, AI Hui. Themechanical model and reinforcement of the intersectionof tunnel and sliding zone under orthogonal system[J]. Science and Technology and Engineering,2017,17(9):73-78.
[12]张靓.滑向及轴线斜交条件下滑坡与隧道结构相互作用研究[D].成都:西南交通大学,2012.Zhang Liang. Study on the interaction of landslide andtunnel structure under the condition of sliding and axisskew[D]. Chengdu:Southwest JiaotongUniversity,2012.
[13]戴自航.抗滑桩滑坡推力和桩前滑体抗力分布规律的研究[J].岩石力学与工程学报,2002,21(4):517-521.DAI Zihang. Anti slide pile and landslide thrust slipof the resistance distribution[J]. Chinese Journal ofRock Mechanics and Engineering,2002,21(4):517-521.
[14]程建军,廖小平,王浩,等.滑(边)坡稳定性计算分析中的滑坡推力计算方法[J].中国地质灾害与防治学报,2007,18(S1):50-52.CHENG Jianjun,LIAO Xiaoping,WANG Hao,et al.Calculation method of landslide thrust in stabilitycalculation and analysis of sliding(side slope)[J].Chinese Journal of Geological Hazard and Control,2007,18(S1):50-52.
[15]铁道部,TB1003-2016铁路隧道设计规范[S].北京:中国铁道出版社,2016Ministry of Railways,TB1003-2016 Code for design ofrailway tunnels[S]. Beijing:China RailwayPublishing House,2016.
[2]张鲁新,周德培.蠕动滑坡成因及隧道变形机理的分析[J].岩石力学与工程学报,1999,18(2):217-221.ZHANG Luxin,ZHOU Depei. Analysis of the causesof creep landslide and analysis of deformationmechanism of tunnel[J]. Journal of Rock Mechanicsand Engineering,1999,18(2):217-221.
[3]毛坚强,周德培.滑坡-隧道相互作用受力变形规律的研究[J].西南交通大学学报,2002,37(4):371-376.MAO Jianqiang,ZHOU Depei. Study on the law ofstress and deformation of landslide tunnel interaction[J]. Journal of Southwest Jiaotong University,2002,37(4):371-376.
[4]王俊伟,林超,吴洁,等.渭河隧道施工对上覆滑坡体扰动影响及施工控制技术研究[J].路基工程,2017(4):185-190.WANG Junwei,LIN Chao,WU Jie,et al. Influenceof Weihe tunnel construction on overlying landslideand construction control technology research[J].Subgrade Engineering,2017(4):185-190.
[5]王玉龙,李德武.孙家崖偏压-滑坡隧道围岩变形和受力特征分析[J].兰州交通大学学报,2014,33(4):98-104.WANG Yulong, LI Dewu. Sunjiaya landslide biastunnel surrounding rock deformation characteristicsand stress analysis[J]. Journal of Lanzhou Jiao TongUniversity,2014,33(4):98-104.
[6]许淑珍,董鹏.纵环向注浆联合支护技术在滑坡体黄土隧道中的应用[J].铁道标准设计,2011(2):103-106.XU Shuzhen, DONG Peng. The application oflongitudinal grouting combined support technology inthe Loess Tunnel of landslide body[J]. RailwayStandard Design,2011(2):103-106.
[7]吴红刚,吴道勇,马惠民,等.隧道-滑坡体系类型和隧道变形模式研究[J].岩石力学与工程学报,2012(S2):3632-3642.WU Honggang,WU Daoyong,MA Huimin,et al.Study on the type of tunnel-landslide system and thedeformation model of tunnel[J]. Journal of RockMechanics and Engineering, 2012(S2):3632-3642.
[8]朱苦竹,朱合华.滑坡与隧道相互作用机理实例分析[J].地下空间与工程学报,2006,2(5):809-812.ZHU Kuzhu,ZHU Hehua. Analysis of the interactionmechanism of landslides and tunnels[J]. Journal ofUnderground Space and Engineering,2006,2(5):809-812.
[9]王建秀,朱合华,唐益群,等.连拱隧道-边坡耦合作用:连拱隧道滑坡[J].土木工程学报,2010(1):103-107.WANG Jianxiu,ZHU Hehua,TANG Yiqun,et al.Coupled arch tunnel-slope coupling effect[J]. CivilEngineering Journal,2010(1):103-107.
[10]范建海,张涛,郭刚,等.李师关隧道洞口滑坡发生机理与防治措施研究[C]//深部岩石工程与岩土灾害防治测试新技术与应用研讨会,2006:1445-1450.FAN Jianhai,ZHANG Tao,GUO Gang,et al. Studyon the occurrence mechanism and prevention measuresof Li Shiguan tunnel portal landslide[C]//DeepRock Engineering and Geotechnical DisasterPrevention and Control Test New Technology andApplication Symposium,2006:1445-1450.
[11]陈小云,吴红刚,艾挥.正交体系下隧道与滑带相交力学模型与加固研究[J].科学技术与工程,2017,17(9):73-78.CHEN Xiaoyun, WU Honggang, AI Hui. Themechanical model and reinforcement of the intersectionof tunnel and sliding zone under orthogonal system[J]. Science and Technology and Engineering,2017,17(9):73-78.
[12]张靓.滑向及轴线斜交条件下滑坡与隧道结构相互作用研究[D].成都:西南交通大学,2012.Zhang Liang. Study on the interaction of landslide andtunnel structure under the condition of sliding and axisskew[D]. Chengdu:Southwest JiaotongUniversity,2012.
[13]戴自航.抗滑桩滑坡推力和桩前滑体抗力分布规律的研究[J].岩石力学与工程学报,2002,21(4):517-521.DAI Zihang. Anti slide pile and landslide thrust slipof the resistance distribution[J]. Chinese Journal ofRock Mechanics and Engineering,2002,21(4):517-521.
[14]程建军,廖小平,王浩,等.滑(边)坡稳定性计算分析中的滑坡推力计算方法[J].中国地质灾害与防治学报,2007,18(S1):50-52.CHENG Jianjun,LIAO Xiaoping,WANG Hao,et al.Calculation method of landslide thrust in stabilitycalculation and analysis of sliding(side slope)[J].Chinese Journal of Geological Hazard and Control,2007,18(S1):50-52.
[15]铁道部,TB1003-2016铁路隧道设计规范[S].北京:中国铁道出版社,2016Ministry of Railways,TB1003-2016 Code for design ofrailway tunnels[S]. Beijing:China RailwayPublishing House,2016.
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