自锚式加固结构对滑坡区隧道的治理效果研究
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摘要
滑坡区隧道存在变形破坏等病害,文章采用自锚式新型加固结构对位于深厚滑坡体滑面上部附近的隧道进行加固处置,并通过理论计算和数值计算就自锚式加固结构的加固效果进行研究分析。理论计算结果表明:采用新型加固结构后,隧道内力分布更加均布合理,变形也得到了有效的约束,验证了新型加固结构具有良好的加固效果。数值计算结果表明:采用新型加固结构后,隧道内力分布更加合理,最大主应力明显减小,应力集中区消失,同时变形也得到了有效的约束;新型加固结构的作用范围仅体现在隧道围岩及下部岩土,滑坡最终将发生越顶破坏,验证了自锚式新型加固结构只加固隧道而不治理滑坡的加固理念。
Deformation and failure often occur in the tunnel at a landslide area. The self-anchored reinforcement structure was adopted to reinforce the tunnel located at the upper surface of deep and thick landslide mass. Study and analysis were conducted regarding the effect of self-anchored reinforcement structure based on theoretical calculation and numerical simulation. The theoretical calculation results show that the distribution of internal force ismore uniform and reasonable and deformation is effectively restrained after taking the new type reinforcement structure, verifying the effect of self-anchored reinforcement structure. The numerical calculation results show that the distribution of internal force is more reasonable, the maximum principal stress decreases significantly, the area of stress concentration eliminates and deformation is effectively restrained after taking the new type reinforcement structure; effective scope of this reinforced structure is only at tunnel surrounding rock and the lower rock soil, land-slide may finally cause overtopping failure, varying the concept that the self-anchored reinforcement structure is only to reinforce tunnel instead of landslide control.
Deformation and failure often occur in the tunnel at a landslide area. The self-anchored reinforcement structure was adopted to reinforce the tunnel located at the upper surface of deep and thick landslide mass. Study and analysis were conducted regarding the effect of self-anchored reinforcement structure based on theoretical calculation and numerical simulation. The theoretical calculation results show that the distribution of internal force ismore uniform and reasonable and deformation is effectively restrained after taking the new type reinforcement structure, verifying the effect of self-anchored reinforcement structure. The numerical calculation results show that the distribution of internal force is more reasonable, the maximum principal stress decreases significantly, the area of stress concentration eliminates and deformation is effectively restrained after taking the new type reinforcement structure; effective scope of this reinforced structure is only at tunnel surrounding rock and the lower rock soil, land-slide may finally cause overtopping failure, varying the concept that the self-anchored reinforcement structure is only to reinforce tunnel instead of landslide control.
引文
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[5]汪晓峰,黄绍槟.四川西-攀高速公路山神庙隧道进口滑坡综合治理[J].中国地质灾害与防治学报,2007,18(4):15-18.WANG Xiaofeng,HUANG Shaobin.Comprehensive Restraint Works of Landslide Hazard at Shanshenmiao Tunnel Entrance on Xichang-Panzhihua Expressway in Sichuan Province[J].The Chinese Journal of Geological Hazard and Control,2007,18(4):15-18.
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[7]曲学兵.任胡岭隧道进口山体滑坡治理[J].岩土工程界,2003,6(10):62-64.QU Xuebing.Control of Hill Landslides at the Inlet of the Renhuling Tunnel[J].Geotechnical Engineering World,2003,6(10):62-64.
[8]陈金城.古田隧道山体滑坡整治技术[J].铁道标准设计,2005,(7):92-94.CHEN Jincheng.Treatment for Mountain Landslide of Gutian Tunnel[J].Railway Standard Design,2005,(7):92-94.
[9]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[J].地下空间与工程学报,2006,2(8):1445-1450.FAN Jianhai,ZHANG Tao,GUO Gang,et al.Study on the Landslide Mechanism and Treatments at the Portal of Lishiguan Tunnel[J].Chinese Journal of Underground Space and Engineering,2006,2(8):1443-1450.
[10]张鸿,方华.北晨亭隧道洞口山体滑坡及初支裂缝综合治理研究[J].中外公路,2008,28(6):159-163.ZHANG Hong,FANG Hua.Study of Landslide and Its Comprehensive Governance of Beichenting Tunnel Entrance[J].Journal of China and Foreign Highway,2008,28(6):159-163.
[11]刘海,沈军辉,魏伟,等.穿越古滑坡川主寺隧道施工地质问题及整治措施[J].工程地质学报,2012,20(4):540-546.LIU Hai,SHEN Junhui,WEI Wei,et al.Geological Problems and Treatment Measures for Highway Tunnel through Ancient Landslide[J].Journal of Engineering Geology,2012,20(4):540-546.
[12]陶志平,周德培.滑坡地段隧道变形的地质力学模型及工程防治措施[J].铁道工程学报,2006,(1):61-66.TAO Zhiping,ZHOU Depei.The Geological Mechanics Models of Tunnel Deformation at Landslide Site and Engineering Controlling Measure[J].Journal of Railway Engineering Society,2006,(1):61-66.
[13]陶志平,周德培.用抗滑桩整治滑坡地段隧道变形的模型试验研究[J].岩石力学与工程学报,2004,23(3):457-460.TAO Zhiping,ZHOU Depei.Model Testing Research on Controlling Tunnel Deformation in Landslide Field with Anti-slide Piles[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(3):457-460.
[14]陶志平,周德培.滑坡地段隧道变形整治中抗滑桩的设计方法[J].山地学报,2003,21(5):620-623.TAO Zhiping,ZHOU Depei.The Design Method of Anti-slide Pile for Controlling Tunnel Deformation in Landslide[J].Journal of Mountain Science,2003,21(5):620-623.
[15]李彬.偏压隧道病害特征及其控制措施[J].铁道科学与工程学报,2011,8(6):59-63.LI Bin.Study on Disease Characteristics of Unsymmetrical Pressure Tunnel and Its Control Measures[J].Journal of Railway Science and Engineering,2011,8(6):59-63.
[16]成永刚,王全才,范安军.隧道区滑坡防治方案研究[J].地质灾害与环境保护,2014,25(4):30-36.CHENG Yonggang,WANG Quancai,FAN Anjun.Scheme for Landslide Prevention in Tunnel Areas[J].Journal of Geological Hazards and Environment Preservation,2014,25(4):30-36.
[17]吴红刚,杨涛,马惠民,等.隧道-滑坡体系的预加固机制及模型试验研究[J].岩石力学与工程学报,2014,33(S2):3531-3538.WU Honggang,YANG Tao,MA Huimin,et al.Research of Pre-reinforcement Mechanism and Model Test of Tunnel-landslide System[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(S2):3531-3538.
[18]邓荣贵,尹静,钟志彬,等.滑坡区隧道自锚式新型加固结构理论研究[J].岩石力学与工程学报,2015,34(7):1315-1324.DENG Ronggui,YIN Jing,ZHONG Zhibin,et al.Theory Research of the Self-anchored New Type Reinforcement Structure for the Landslide Tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(7):1315-1324.
[19]尹静,邓荣贵,李凯甜,等.滑坡区隧道自锚式加固结构受力变形研究[J].岩石力学与工程学报,2016,35(10):2062-2079.YIN Jing,DENG Ronggui,LI Kaitian,et al.Stress and Deformation of Self-anchored Reinforcement Structures for Landslide Tunnels[J].Chinese Journal of Rock Mechanics and Engineering,2016,35(10):2062-2079.
[20]冯亮(译).埋设管线[M].北京:石油工业出版社,1980.FENG Liang(Translator).Pipeline Embedment[M].Beijing:Petroleum Industry Press,1980.
[21]小泉淳,村上博智,西野健三.ツールドトネルの軸方向特性のモデルイヒについて[C]//土木学会論文集,1988.
[22]志波由纪夫,川島一彦,大日方尚己,加納尚史.ツールドトネルの耐震解析にる長手方向覆工剛性の评价法[C]//土木学会論文集,1988.
[23]志波由纪夫,川島一彦,大日方尚己,加納尚史.応店答变位法によるツ-ルドトンネルの地震時断面力の算定法[C]//土木学会論文集,1989.
[24]尹静,邓荣贵,钟志彬,等.横穿滑坡变形区隧道受力变形规律及影响因素分析[J].岩石力学与工程学报,2016,(S2):3615-3625.YIN Jing,DENG Ronggui,ZHONG Zhibin,et al.Stress and Deformation Laws and Influence Factors Analysis of Tunnel across the Slope Deformation Zone[J].Chinese Journal of Rock Mechanics and Engineering,2016,(S2):3615-3625.
[2]尉学勇,蔡庆娥,赵冬,等.乌沙隧道出口滑坡成因分析及治理工程设计[J].路基工程,2013,(4):167-171.YU Xueyong,CAI Qing′e,ZHAO Dong,et al.Analysis on Genesis of Landslide at the Exit of Wusha Tunnel and the Treatment Design[J].Subgrade Engineering,2013,(4):167-171.
[3]任立志.龙洞湾隧道进口病害及其处理[J].世界隧道,2000,(3):50-53.REN Lizhi.Cause of Disease and Treatment Measures for the Portal of Longdongwan Tunnel[J].World Tunnelling,2000,(3):50-53.
[4]叶小兵.楚大高速公路九顿坡隧道洞口仰坡滑坡监测与治理[J].建筑,2003,(12):61-62.YE Xiaobing.Land Deformation and Its Preventive Treatments for Elevated Slope at Tunnel Portal of Certa in Expressway[J].Architecture and Construction,2003,(12):61-62.
[5]汪晓峰,黄绍槟.四川西-攀高速公路山神庙隧道进口滑坡综合治理[J].中国地质灾害与防治学报,2007,18(4):15-18.WANG Xiaofeng,HUANG Shaobin.Comprehensive Restraint Works of Landslide Hazard at Shanshenmiao Tunnel Entrance on Xichang-Panzhihua Expressway in Sichuan Province[J].The Chinese Journal of Geological Hazard and Control,2007,18(4):15-18.
[6]陈宝林,宋建民.对宝中线堡子梁隧道变形的整治和认识[J].铁道建筑,1999,(12):23-24.CHEN Baolin,SONG Jianmin.Deformation Control of the Baoziliang Tunnel on Baoji-Zhongwei Railway[j].Railway Engineering,1999,(12):23-24.
[7]曲学兵.任胡岭隧道进口山体滑坡治理[J].岩土工程界,2003,6(10):62-64.QU Xuebing.Control of Hill Landslides at the Inlet of the Renhuling Tunnel[J].Geotechnical Engineering World,2003,6(10):62-64.
[8]陈金城.古田隧道山体滑坡整治技术[J].铁道标准设计,2005,(7):92-94.CHEN Jincheng.Treatment for Mountain Landslide of Gutian Tunnel[J].Railway Standard Design,2005,(7):92-94.
[9]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[J].地下空间与工程学报,2006,2(8):1445-1450.FAN Jianhai,ZHANG Tao,GUO Gang,et al.Study on the Landslide Mechanism and Treatments at the Portal of Lishiguan Tunnel[J].Chinese Journal of Underground Space and Engineering,2006,2(8):1443-1450.
[10]张鸿,方华.北晨亭隧道洞口山体滑坡及初支裂缝综合治理研究[J].中外公路,2008,28(6):159-163.ZHANG Hong,FANG Hua.Study of Landslide and Its Comprehensive Governance of Beichenting Tunnel Entrance[J].Journal of China and Foreign Highway,2008,28(6):159-163.
[11]刘海,沈军辉,魏伟,等.穿越古滑坡川主寺隧道施工地质问题及整治措施[J].工程地质学报,2012,20(4):540-546.LIU Hai,SHEN Junhui,WEI Wei,et al.Geological Problems and Treatment Measures for Highway Tunnel through Ancient Landslide[J].Journal of Engineering Geology,2012,20(4):540-546.
[12]陶志平,周德培.滑坡地段隧道变形的地质力学模型及工程防治措施[J].铁道工程学报,2006,(1):61-66.TAO Zhiping,ZHOU Depei.The Geological Mechanics Models of Tunnel Deformation at Landslide Site and Engineering Controlling Measure[J].Journal of Railway Engineering Society,2006,(1):61-66.
[13]陶志平,周德培.用抗滑桩整治滑坡地段隧道变形的模型试验研究[J].岩石力学与工程学报,2004,23(3):457-460.TAO Zhiping,ZHOU Depei.Model Testing Research on Controlling Tunnel Deformation in Landslide Field with Anti-slide Piles[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(3):457-460.
[14]陶志平,周德培.滑坡地段隧道变形整治中抗滑桩的设计方法[J].山地学报,2003,21(5):620-623.TAO Zhiping,ZHOU Depei.The Design Method of Anti-slide Pile for Controlling Tunnel Deformation in Landslide[J].Journal of Mountain Science,2003,21(5):620-623.
[15]李彬.偏压隧道病害特征及其控制措施[J].铁道科学与工程学报,2011,8(6):59-63.LI Bin.Study on Disease Characteristics of Unsymmetrical Pressure Tunnel and Its Control Measures[J].Journal of Railway Science and Engineering,2011,8(6):59-63.
[16]成永刚,王全才,范安军.隧道区滑坡防治方案研究[J].地质灾害与环境保护,2014,25(4):30-36.CHENG Yonggang,WANG Quancai,FAN Anjun.Scheme for Landslide Prevention in Tunnel Areas[J].Journal of Geological Hazards and Environment Preservation,2014,25(4):30-36.
[17]吴红刚,杨涛,马惠民,等.隧道-滑坡体系的预加固机制及模型试验研究[J].岩石力学与工程学报,2014,33(S2):3531-3538.WU Honggang,YANG Tao,MA Huimin,et al.Research of Pre-reinforcement Mechanism and Model Test of Tunnel-landslide System[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(S2):3531-3538.
[18]邓荣贵,尹静,钟志彬,等.滑坡区隧道自锚式新型加固结构理论研究[J].岩石力学与工程学报,2015,34(7):1315-1324.DENG Ronggui,YIN Jing,ZHONG Zhibin,et al.Theory Research of the Self-anchored New Type Reinforcement Structure for the Landslide Tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(7):1315-1324.
[19]尹静,邓荣贵,李凯甜,等.滑坡区隧道自锚式加固结构受力变形研究[J].岩石力学与工程学报,2016,35(10):2062-2079.YIN Jing,DENG Ronggui,LI Kaitian,et al.Stress and Deformation of Self-anchored Reinforcement Structures for Landslide Tunnels[J].Chinese Journal of Rock Mechanics and Engineering,2016,35(10):2062-2079.
[20]冯亮(译).埋设管线[M].北京:石油工业出版社,1980.FENG Liang(Translator).Pipeline Embedment[M].Beijing:Petroleum Industry Press,1980.
[21]小泉淳,村上博智,西野健三.ツールドトネルの軸方向特性のモデルイヒについて[C]//土木学会論文集,1988.
[22]志波由纪夫,川島一彦,大日方尚己,加納尚史.ツールドトネルの耐震解析にる長手方向覆工剛性の评价法[C]//土木学会論文集,1988.
[23]志波由纪夫,川島一彦,大日方尚己,加納尚史.応店答变位法によるツ-ルドトンネルの地震時断面力の算定法[C]//土木学会論文集,1989.
[24]尹静,邓荣贵,钟志彬,等.横穿滑坡变形区隧道受力变形规律及影响因素分析[J].岩石力学与工程学报,2016,(S2):3615-3625.YIN Jing,DENG Ronggui,ZHONG Zhibin,et al.Stress and Deformation Laws and Influence Factors Analysis of Tunnel across the Slope Deformation Zone[J].Chinese Journal of Rock Mechanics and Engineering,2016,(S2):3615-3625.