地震作用下边坡抗滑桩振动台试验研究
|
摘要
通过大型振动台试验研究地震荷载作用下边坡抗滑桩的抗震性能,振动台试验边坡模型放在一个长3.7 m、宽1.5 m、高1.8 m的模型箱中。模型与原型边坡按照尺寸相似比1∶20进行模型试验相似设计。经过配合比试验由标准细砂、石膏粉、滑石粉、甘油、水组成相似材料,通过控制密度2.5 g/cm3垒入模型箱中。模型振动台试验通过输入3种不同的地震波,不断加大输入地震波的幅值,通过监测桩后土压力、边坡坡面加速度和位移响应研究抗滑桩在地震作用下边坡抗震机制和地震作用桩后土压力分布形式和抗滑桩的抗震性能。试验研究为边坡抗滑桩抗震设计奠定了良好的基础。
The seismic behaviors of piles retaining the slopes are studied by means of large-scale shaking table tests.The model slope is installed into a model box with a length of 3.7 m,width of 1.5 m and height of 1.8 m.The sizes of model and prototype slope are designed by using the similar principles with a scale factor of 1∶20.Similar materials are made up of the standard fine sand,gypsum powder,talc powder,glycerin and water,and the specimens are reconstituted with density of 2.5 g/cm3.Three different kinds of seismic waves are input to study the dynamic response stabilizing piles by increasing the amplitude of input seismic waves.By monitoring the soil pressure after the piles,the acceleration and displacement response of the slope,the distribution of the soil pressure behind the piles and the seismic performance of the piles are studied.This research provides a good foundation for seismic design of stabilizing piles.
The seismic behaviors of piles retaining the slopes are studied by means of large-scale shaking table tests.The model slope is installed into a model box with a length of 3.7 m,width of 1.5 m and height of 1.8 m.The sizes of model and prototype slope are designed by using the similar principles with a scale factor of 1∶20.Similar materials are made up of the standard fine sand,gypsum powder,talc powder,glycerin and water,and the specimens are reconstituted with density of 2.5 g/cm3.Three different kinds of seismic waves are input to study the dynamic response stabilizing piles by increasing the amplitude of input seismic waves.By monitoring the soil pressure after the piles,the acceleration and displacement response of the slope,the distribution of the soil pressure behind the piles and the seismic performance of the piles are studied.This research provides a good foundation for seismic design of stabilizing piles.
引文
[1]郑颖人,陈祖煜,王恭先.等.边坡与滑坡工程治理[M].北京:人民交通出版社,2007.(ZHENG Ying-ren,CHENZhu-yu,WANG Gong-xian,et al.Engineering treatmentslope&landslide[M].Beijing:China Communication Press,2007.(Chinese))
[2]黄润秋,李为乐.“5.12”汶川大地震触发地质灾害的发育分布规律研究[J].岩石力学与工程学报,2008,27(12):2585–2591.(HUANG Run-qiu,LI Wei-1e.Research ondevelopment and distribution rules of geohazards induced byWenchuan Earthquake on 12th May,2008[J].Chinese Journalof Rock Mechanics and Engineering,2008,27(12):2585–2591.(in Chinese))
[3]周德培,张建经,汤涌.汶川地震中道路边坡工程震害分析[J].岩石力学与工程学报,2010,29(3):565–576.(ZHOU De-pei,ZHANG Jian-jing,TANG Yong.Seismicdamage analysis of road slopes in wenchuan earthquake[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(3):565–576.(in Chinese))
[4]TAKAHASHI A,TAKEMURA J,KAWAGUCHI Y,et a1.Stability of piled pier subjected to lateral flow of soils duringearthquake[J].Centrifuge,1998:365–370.
[5]于玉贞,邓丽军.抗滑桩加固边坡地震响应离心模型试验[J].岩土工程学报,2007,29(9):1320–1323.(YU Yu-zhen.DENG Li-jun.Centrifuge modeling of seismic behavior ofslopes reinforced by stabilizing pile[J].Chinese Journal ofGeotechnical Engineering,2007,29(9):1320–1323.(inChinese))
[6]于玉贞,李荣建,柴霖,等.铜质模型桩加固边坡的动力离心模型试验研究[J].水文地质工程地质,2008(5):41–46.(YU Yu-zhen,LI Rong-jian,CHAI Li,et al.Dynamiccentrifuge test of slope reinforced with copper model piles[J].Hydrogeology Geological Engineering,2008(5):41–46.(inChinese))
[7]李荣建,于玉贞,吕禾.饱和砂土地基上抗滑桩加固边坡的动力离心模型试验研究[J].岩土力学,2009,30(4):897–902.(LI Rong-jian,YU Yu-zhen,LüHe.Dynamiccentrifuge modeling of piles-reinforced slope on saturatedsandy foundation[J].Rock and Soil Mechanics,2009,30(4):897–902.(in Chinese))
[8]郑颖人,叶海林,黄润秋.地震边坡破坏机制及其破裂面的分析探讨[J].岩石力学与工程学报,2009,28(8):1714–1723.(ZHENG Ying-ren,YE Hai-lin,HUANG Run-qiu.Discussion and analysis on falure mechanism and fracturesurface of slope under earthquake effect[J].Chinese Journalof Rock Mechanics and Engineering,2009,28(8):1714–1723.(in Chinese))
[9]郑颖人,叶海林,黄润秋,等.边坡地震稳定性分析探讨[J].地震工程与工程振动,2010,30(2):66–73.(ZHENGYing-ren,YE Hai-lin,HUANG Run-qiu,et al.Study on thestability analysis of earthquake slope[J].EarthquakeEngineering and Engineering Vibration,2010,30(2):66–73.(in Chinese))
[10]叶海林,郑颖人,黄润秋,等.强度折减动力分析法在滑坡抗滑桩抗震设计中的应用研究[J].岩土力学,2010(增刊1):66–73.(YE Hai-lin,ZHENG Ying-ren,HUANGRun-qiu,et al.Study of application of strength reductiondynamic analysis method to aseismic design of anti-slidepiles for landslide[J].Rock and Soil Mechanics,2010(S1):66–73.(in Chinese))
[11]陶云辉,周勇波,王伟峰.地震条件下双排抗滑桩受力分析[J].路基工程,2010(2):163–166.(TAO Yun-hui,ZHOU Yong-bo,WANG Wei-feng.Analysis on doubleanti-slide pile stress under seismic action[J].SubgradeEngineering,2010(2):164–166.(in Chinese))
[12]罗渝,何思明,何尽川.地震作用下抗滑桩作用机制研究[J].长江科学院院报,2010,27(6):26–29.(LUO Yu,HE Si-ming,HE Jin-chuan.Study on interaction betweenslope and stabiliz ing pile under seism loading[J].Journal ofYangtze River Scientific Research Institute,2010,26(4):26–29.(in Chinese))
[13]汪鹏程,朱大勇,许强.强震作用下加固边坡的动力响应及不同加固方式的比较研究[J].合肥工业大学学报,2009,32(10):1501–1504.(WANG Peng-cheng,ZHUDa-yong,XU Qiang.Dynamic response of slope subjected tointense earthquakes and effect comparison between varioussupport modes[J].Journal of University of Technology,2009,32(10):1501–1504.(in Chinese))
[14]IAI Susumu.Similitude for shaking table tests onsoil-structurefluid model in 1-g gravitational field[J].Soilsand Foundations,1989,29(1):105–118.
[15]MEYMAND Philip J.Shaking table scale model tests ofnonlinear soil-pile-superstructure interaction in soft clay[D].Berkdy:U.C.Berkeley.1998.
[2]黄润秋,李为乐.“5.12”汶川大地震触发地质灾害的发育分布规律研究[J].岩石力学与工程学报,2008,27(12):2585–2591.(HUANG Run-qiu,LI Wei-1e.Research ondevelopment and distribution rules of geohazards induced byWenchuan Earthquake on 12th May,2008[J].Chinese Journalof Rock Mechanics and Engineering,2008,27(12):2585–2591.(in Chinese))
[3]周德培,张建经,汤涌.汶川地震中道路边坡工程震害分析[J].岩石力学与工程学报,2010,29(3):565–576.(ZHOU De-pei,ZHANG Jian-jing,TANG Yong.Seismicdamage analysis of road slopes in wenchuan earthquake[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(3):565–576.(in Chinese))
[4]TAKAHASHI A,TAKEMURA J,KAWAGUCHI Y,et a1.Stability of piled pier subjected to lateral flow of soils duringearthquake[J].Centrifuge,1998:365–370.
[5]于玉贞,邓丽军.抗滑桩加固边坡地震响应离心模型试验[J].岩土工程学报,2007,29(9):1320–1323.(YU Yu-zhen.DENG Li-jun.Centrifuge modeling of seismic behavior ofslopes reinforced by stabilizing pile[J].Chinese Journal ofGeotechnical Engineering,2007,29(9):1320–1323.(inChinese))
[6]于玉贞,李荣建,柴霖,等.铜质模型桩加固边坡的动力离心模型试验研究[J].水文地质工程地质,2008(5):41–46.(YU Yu-zhen,LI Rong-jian,CHAI Li,et al.Dynamiccentrifuge test of slope reinforced with copper model piles[J].Hydrogeology Geological Engineering,2008(5):41–46.(inChinese))
[7]李荣建,于玉贞,吕禾.饱和砂土地基上抗滑桩加固边坡的动力离心模型试验研究[J].岩土力学,2009,30(4):897–902.(LI Rong-jian,YU Yu-zhen,LüHe.Dynamiccentrifuge modeling of piles-reinforced slope on saturatedsandy foundation[J].Rock and Soil Mechanics,2009,30(4):897–902.(in Chinese))
[8]郑颖人,叶海林,黄润秋.地震边坡破坏机制及其破裂面的分析探讨[J].岩石力学与工程学报,2009,28(8):1714–1723.(ZHENG Ying-ren,YE Hai-lin,HUANG Run-qiu.Discussion and analysis on falure mechanism and fracturesurface of slope under earthquake effect[J].Chinese Journalof Rock Mechanics and Engineering,2009,28(8):1714–1723.(in Chinese))
[9]郑颖人,叶海林,黄润秋,等.边坡地震稳定性分析探讨[J].地震工程与工程振动,2010,30(2):66–73.(ZHENGYing-ren,YE Hai-lin,HUANG Run-qiu,et al.Study on thestability analysis of earthquake slope[J].EarthquakeEngineering and Engineering Vibration,2010,30(2):66–73.(in Chinese))
[10]叶海林,郑颖人,黄润秋,等.强度折减动力分析法在滑坡抗滑桩抗震设计中的应用研究[J].岩土力学,2010(增刊1):66–73.(YE Hai-lin,ZHENG Ying-ren,HUANGRun-qiu,et al.Study of application of strength reductiondynamic analysis method to aseismic design of anti-slidepiles for landslide[J].Rock and Soil Mechanics,2010(S1):66–73.(in Chinese))
[11]陶云辉,周勇波,王伟峰.地震条件下双排抗滑桩受力分析[J].路基工程,2010(2):163–166.(TAO Yun-hui,ZHOU Yong-bo,WANG Wei-feng.Analysis on doubleanti-slide pile stress under seismic action[J].SubgradeEngineering,2010(2):164–166.(in Chinese))
[12]罗渝,何思明,何尽川.地震作用下抗滑桩作用机制研究[J].长江科学院院报,2010,27(6):26–29.(LUO Yu,HE Si-ming,HE Jin-chuan.Study on interaction betweenslope and stabiliz ing pile under seism loading[J].Journal ofYangtze River Scientific Research Institute,2010,26(4):26–29.(in Chinese))
[13]汪鹏程,朱大勇,许强.强震作用下加固边坡的动力响应及不同加固方式的比较研究[J].合肥工业大学学报,2009,32(10):1501–1504.(WANG Peng-cheng,ZHUDa-yong,XU Qiang.Dynamic response of slope subjected tointense earthquakes and effect comparison between varioussupport modes[J].Journal of University of Technology,2009,32(10):1501–1504.(in Chinese))
[14]IAI Susumu.Similitude for shaking table tests onsoil-structurefluid model in 1-g gravitational field[J].Soilsand Foundations,1989,29(1):105–118.
[15]MEYMAND Philip J.Shaking table scale model tests ofnonlinear soil-pile-superstructure interaction in soft clay[D].Berkdy:U.C.Berkeley.1998.
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