地震作用下柔性无面板加筋路堤失效模式研究
|
摘要
针对岩土工程领域边坡防护抗震问题,建立柔性无面板加筋路堤有限元计算模型,重点讨论柔性无面板加筋路堤在地震作用下的失效模式,从中提炼总结地震作用下柔性无面板加筋路堤潜在破裂面的分布规律,提出一种适用于柔性无面板加筋路堤的多折线简化破裂面,并与有面板加筋土挡墙破裂面的3种传统假定进行比较分析。结果表明:对于柔性无面板加筋路堤失效模式的确定方法,采用多折线简化破裂面更为合适,该破裂面为岩土工程领域边坡防护抗震问题提供了一种新的设计思路,为今后的工程推广提供了理论基础。
Aiming at the seismic protection problem of slope protection in geotechnical engineering,the finite element calculation model of flexible non-panel reinforced embankment is established,and the failure mode of flexible non-panel reinforced embankment under earthquake action is discussed and summarized.Based on the distribution law of potential rupture surface,a simplified rupture surface suitable for flexible non-panel reinforced embankment is proposed and compared with the three traditional assumptions of rupture surface of panel reinforced soil retaining wall.The results show that the method for determining the failure mode of the non-panel reinforced embankment is more suitable by simplifying the rupture surface with multi-fold line.The rupture surface provides a new design idea for the seismic protection of slope protection in geotechnical engineering field,and provides a theory basis for future engineering promotion.
Aiming at the seismic protection problem of slope protection in geotechnical engineering,the finite element calculation model of flexible non-panel reinforced embankment is established,and the failure mode of flexible non-panel reinforced embankment under earthquake action is discussed and summarized.Based on the distribution law of potential rupture surface,a simplified rupture surface suitable for flexible non-panel reinforced embankment is proposed and compared with the three traditional assumptions of rupture surface of panel reinforced soil retaining wall.The results show that the method for determining the failure mode of the non-panel reinforced embankment is more suitable by simplifying the rupture surface with multi-fold line.The rupture surface provides a new design idea for the seismic protection of slope protection in geotechnical engineering field,and provides a theory basis for future engineering promotion.
引文
[1]苗英豪,王秉纲.土工格栅加筋路堤机理研究进展[J].中外公路,2007,(3):45-49.
[2]米慧杰,王玉鹏,罗烈日.土工格栅加筋高陡坡路堤稳定性及其影响因素分析[J].中外公路,2014,34(1):44-48.
[3]刘新喜,夏元友,蔡俊杰,等.降雨入渗下强风化软岩高填方路堤边坡稳定性研究[J].岩土力学,2007,(8):1705-1709.
[4]周健,谢鑫波,姜炯,等.包裹式加筋土挡墙的变形特性及影响因素研究[J].岩石力学与工程学报,2015,34(1):148-154.
[5]朱湘,黄晓明,邓学钧.土工格栅加筋路堤机理研究[J].公路交通科技,2000,(1):3-6,15.
[6]蒋建清,杨果林.格宾加筋土挡墙抗震性能及数值分析[J].土木工程学报,2012,45(1):100-108.
[7]王建,姚令侃,陈强.汶川地震路堤成灾模式及土工格栅加筋变形控制研究[J].岩石力学与工程学报,2010,29(S1):3387-3394.
[8]陈建峰,柳军修,石振明.软土地基加筋土挡墙数值模拟及稳定性探讨[J].岩石力学与工程学报,2012,31(9):1928-1935.
[9]介玉新,李广信,陈轮.纤维加筋土和素土边坡的离心模型试验研究[J].岩土工程学报,1998,20(4):12-15.
[10]章为民,赖忠中,徐光明.加筋挡土墙离心模型试验研究[J].土木工程学报,2000,33(3):85-90.
[11]孟庆山,孔令伟,郭爱国,等.高速公路高填方路堤拼接离心模型试验研究[J].岩石力学与工程学报,2007,(3):580-586.
[12]王家全,周健,丛林,等.高填方加筋新旧路堤现场试验与数值模拟分析[J].岩石力学与工程学报,2010,29(S1):2943-2950.
[13]贾敏才,黄文军,叶建忠,等.超高无面板式土工格栅加筋路堤现场试验研究[J].岩土工程学报,2014,36(12):2220-2225.
[14]王丽艳,陈国兴,井合进.地震作用下土工格栅加筋土挡墙水平变形的拟静力计算法[J].中国公路学报,2015,28(3):28-34.
[15]Wang L,Chen G,Chen S.Experimental study on seismic response of geogrid reinforced rigid retaining walls with saturated backfill sand[J].Geotext Geomemb,2015,43(1):35-45.
[16]Lo Grasso A S,Maugeri M,Recalcati P.Seismic behavior of geosynthetic reinforced slopes with overload by shaking table tests.Slopes and retaining structures under static and seismic conditions[M].In:ASCE Geotechnical Special Publication,2005:140.
[17]Latha G M,Krishna A M.Seismic response of reinforced soil retaining wall models:influence of backfill relative density[J].Geotext Geomemb,2008,26(4):335-349.
[18] Hoe I Ling,Huabei Liu,Yoshiyuki Mohri.Parametric studies on the behavior of reinforced soil retaining walls under earthquake loading[J].Journal of Engineering Mechanics,2005,131(10):1056-1065.
[19]Aubeny C,Li Y,Briaud J.Geosynthetic Reinforced Pile Supported Embankments:Numerical Simulation and Design Needs[C]//Proceedings of the 7th International Conference on Geotextiles,Nice,France,2002:365-368.
[20]J L Borges,A S Cardoso.Structural behavior and parametric study of reinforced Embankments on soft clays[J].Computers and Geotechnics,2001,28(3):209-233.
[21]Xu J S,Yang X L.Seismic and Static Stability Analysis for 3DReinforced Slope in Nonhomogeneous and Anisotropic Soils[J].International Journal of Geomechanics,2018,18(7).
[22]贾亮,郭健,姚凯.基于水平条分法的加筋土边坡地震稳定性分析[J].应用基础与工程科学学报,2018,26:168-176.
[23]向钰周,郑颖人,等.加筋土破坏面的模型试验与数值模拟[J].岩石力学与工程学报,2014,33(S1):2977-2982.
[2]米慧杰,王玉鹏,罗烈日.土工格栅加筋高陡坡路堤稳定性及其影响因素分析[J].中外公路,2014,34(1):44-48.
[3]刘新喜,夏元友,蔡俊杰,等.降雨入渗下强风化软岩高填方路堤边坡稳定性研究[J].岩土力学,2007,(8):1705-1709.
[4]周健,谢鑫波,姜炯,等.包裹式加筋土挡墙的变形特性及影响因素研究[J].岩石力学与工程学报,2015,34(1):148-154.
[5]朱湘,黄晓明,邓学钧.土工格栅加筋路堤机理研究[J].公路交通科技,2000,(1):3-6,15.
[6]蒋建清,杨果林.格宾加筋土挡墙抗震性能及数值分析[J].土木工程学报,2012,45(1):100-108.
[7]王建,姚令侃,陈强.汶川地震路堤成灾模式及土工格栅加筋变形控制研究[J].岩石力学与工程学报,2010,29(S1):3387-3394.
[8]陈建峰,柳军修,石振明.软土地基加筋土挡墙数值模拟及稳定性探讨[J].岩石力学与工程学报,2012,31(9):1928-1935.
[9]介玉新,李广信,陈轮.纤维加筋土和素土边坡的离心模型试验研究[J].岩土工程学报,1998,20(4):12-15.
[10]章为民,赖忠中,徐光明.加筋挡土墙离心模型试验研究[J].土木工程学报,2000,33(3):85-90.
[11]孟庆山,孔令伟,郭爱国,等.高速公路高填方路堤拼接离心模型试验研究[J].岩石力学与工程学报,2007,(3):580-586.
[12]王家全,周健,丛林,等.高填方加筋新旧路堤现场试验与数值模拟分析[J].岩石力学与工程学报,2010,29(S1):2943-2950.
[13]贾敏才,黄文军,叶建忠,等.超高无面板式土工格栅加筋路堤现场试验研究[J].岩土工程学报,2014,36(12):2220-2225.
[14]王丽艳,陈国兴,井合进.地震作用下土工格栅加筋土挡墙水平变形的拟静力计算法[J].中国公路学报,2015,28(3):28-34.
[15]Wang L,Chen G,Chen S.Experimental study on seismic response of geogrid reinforced rigid retaining walls with saturated backfill sand[J].Geotext Geomemb,2015,43(1):35-45.
[16]Lo Grasso A S,Maugeri M,Recalcati P.Seismic behavior of geosynthetic reinforced slopes with overload by shaking table tests.Slopes and retaining structures under static and seismic conditions[M].In:ASCE Geotechnical Special Publication,2005:140.
[17]Latha G M,Krishna A M.Seismic response of reinforced soil retaining wall models:influence of backfill relative density[J].Geotext Geomemb,2008,26(4):335-349.
[18] Hoe I Ling,Huabei Liu,Yoshiyuki Mohri.Parametric studies on the behavior of reinforced soil retaining walls under earthquake loading[J].Journal of Engineering Mechanics,2005,131(10):1056-1065.
[19]Aubeny C,Li Y,Briaud J.Geosynthetic Reinforced Pile Supported Embankments:Numerical Simulation and Design Needs[C]//Proceedings of the 7th International Conference on Geotextiles,Nice,France,2002:365-368.
[20]J L Borges,A S Cardoso.Structural behavior and parametric study of reinforced Embankments on soft clays[J].Computers and Geotechnics,2001,28(3):209-233.
[21]Xu J S,Yang X L.Seismic and Static Stability Analysis for 3DReinforced Slope in Nonhomogeneous and Anisotropic Soils[J].International Journal of Geomechanics,2018,18(7).
[22]贾亮,郭健,姚凯.基于水平条分法的加筋土边坡地震稳定性分析[J].应用基础与工程科学学报,2018,26:168-176.
[23]向钰周,郑颖人,等.加筋土破坏面的模型试验与数值模拟[J].岩石力学与工程学报,2014,33(S1):2977-2982.