埋入式抗滑桩支护地震边坡研究
|
摘要
近几年,埋入式抗滑桩由于其自身的特点而在边坡支护中得到广泛应用,成为边坡支护的一种主要支护方式。静力情况下,埋入式抗滑桩的研究已经较为成熟,动力作用下的研究目前还较少。采用动力强度折减法,利用FLAC软件,提出了抗震设计新方法。通过比较地震作用前后桩的内力值,二者之间的较大值作为桩的抗震设计内力值,同时得到了桩体的内力分布形式。文章对一个具体边坡进行计算分析,结果表明:埋入式抗滑桩不仅在静力情况下能够较好的支护边坡,而且在地震作用下能够满足抗震设计的要求,为边坡的抗震设计提供了一种新的支护方法。
In recent years,the embedded anti-slide pile is widely used in the slope support due to its specific characteristics and becomes a main slope support form.In static circumstances,the research of embedded anti-slide pile has been relatively mature,but in dynamic circumstances such pile is rarely studied.This paper adopted dynamic strength reduction,using the FLAC software,and proposes a new method of seismic design.Through the comparison of the earthquake effect on pile,it takes a larger value of internal force for the seismic design of pile,and gets the internal force distribution form of pile.Based on a specific slope,the result shows that not only in static circumstances but also in dynamic calculation,the embedded anti-slide pile can meet the requirements for seismic design of the slope,and it provides a new method for the seismic design of slope support.
In recent years,the embedded anti-slide pile is widely used in the slope support due to its specific characteristics and becomes a main slope support form.In static circumstances,the research of embedded anti-slide pile has been relatively mature,but in dynamic circumstances such pile is rarely studied.This paper adopted dynamic strength reduction,using the FLAC software,and proposes a new method of seismic design.Through the comparison of the earthquake effect on pile,it takes a larger value of internal force for the seismic design of pile,and gets the internal force distribution form of pile.Based on a specific slope,the result shows that not only in static circumstances but also in dynamic calculation,the embedded anti-slide pile can meet the requirements for seismic design of the slope,and it provides a new method for the seismic design of slope support.
引文
[1]梁斌.埋入式抗滑桩的研究与现场监测[D].重庆:后勤工程学院,2008.(Liang Bin.The research andfield monitoring of embedded piles[D].Chongqing:Logistical Engineering University,2008.(in Chinese))
[2]雷文杰.沉埋桩加固滑坡体的有限元设计方法与大型物理模型试验研究[D].北京:中国科学院研究生院,2006.(Lei Wenjie.Study on dedign method ofdeeply buried piles stabilizing slides and large scaledmodel tests[D].Beijing:Graduate University of ChineseAcademy of Science,2006.(in Chinese))
[3]雷文杰,郑颖人,王恭先,等.沉埋桩加固滑坡体模型试验的机制分析[J].岩石力学与工程学报,2007,26(7):1 347-1 355.(Lei Wenjie,Zhang Yingren,Wang Gongxian,et al.Mechanism analysis of slope re-inforcement with deeply buried piles with model test[J].Chinese Journal of Rock Mechanics and Engineer-ing,2007,26(7):1 347-1 355.(in Chinese))
[4]雷用.滑坡治理中抗滑短桩受力特性研究[D].重庆:后勤工程学院,2007.(Lei Yong.Research onloading characters of anti-slide pile during slope treat-ment[D],Chongqing:Logistical Engineering Universi-ty,2007.(in Chinese))
[5]宋雅坤,郑颖人,雷文杰.沉埋式抗滑桩机制模型试验数值分析研究[J].岩土力学,2007,26(5):103-107.(Song Yakun,Zheng Yingren,Lei Wenjie.Analy-sis of the experimental mechanism of deeply buried anti-slide pile by FEM[J].Rock and Soil Mechanics,2007,26(5):103-107.(in Chinese))
[6]中华人民共和国国土资源部.滑坡防治工程设计与施工技术规范(DZ/T0219—2006)[S].北京:中国标准出版社,2006.(The National Land and ResourcesMinistry of the PRC.Specification of design and con-struction for landslide stabilization(DZ/T0219—2006)[S].Beijing:China Standard Press,2006.(in Chi-nese))
[7]郑颖人,赵尚毅,张鲁渝.用有限元强度折减法进行边坡稳定分析[J].中国工程科学,2002,4(10):57-62.(Zheng Yingren,Zhao Shangyi,Zhang Luyu.Slopestability analysis by strength reduction FEM[J].Engi-neering Science,2002,4(10):57-62.(in Chinese))
[8]赵尚毅,郑颖人,张玉芳.极限分析有限元法讲座———Ⅱ有限元强度折减法中边坡失稳的判据探讨[J].岩土力学,2005,26(2):332-336.(Zhao Shan-gyi,Zheng Yingren,Zhang Yufang.Study on slope fail-ure criterion in strength reduction finite element method[J].Rock and Soil Mechanics,2005,26(2):332-336.(in Chinese))
[9]Itasca Consulting Group,Inc..FLAC.(Fast LagrangianAnalysis 3D)User's Manual,Version 3.0.MI.Is.1.J:Itasca Consulting Group,Inc.,2003.
[10]李海波,肖克强,刘亚群.地震荷载作用下顺层岩质边坡安全系数分析[J].岩石力学与工程学报,2007,26(12),2 385-2 394.(Li Haibo,Xiao Keqiang,LiuYaqun.Factor of safety analysis of bedding rock slopeunder seismic load[J].Chinese Journal of Rock Me-chanics and Engineering,2007,26(12),2 385-2 394.(in Chinese))
[11]戴妙林,李同春.基于降强法数值计算的复杂岩质边坡动力稳定性安全评价[J].岩石力学与工程学报,2007,26(增1),2 749-2 754.(Dai Miaolin,Li Tong-chun.Analysis of dynamic stability safety evaluation forcomplex rock slopes by strength reduction numericalmethod[J].Chinese Journal of Rock Mechanics andEngineering,2007,26(Supp.1),2 749-2 754.(inChinese))
[12]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):1 714-1 723.(Zheng Yingren,Ye Hailin,HuangRunqiu.Discussion and analysis on failure mechanismand fracture surface of slope under earthquake effect[J].Chinese Journal of Rock Mechanics and Engineer-ing,2009,28(8):1 714-1 723.(in Chinese))
[13]郑颖人,赵尚毅.用有限元强度折减法求边(滑)坡支挡结构的内力[J].岩石力学与工程学报,2004,23(20):3 552-3 558.(Zheng Yingren,Zhao Shangyi.Calculation of inner force of support structure for land-slide/slope by using strength reduction FEM[J].Chi-nese Journal of Rock Mechanics and Engineering,2004,23(20):3 552-3 558.
[14]Itasca Consulting Group Inc..FLAC(Fast Lagrangianaanalysis of continua)User Manuals(Version 5.0)[R].Minneapolis,Minnesota:Itasca Consulting GroupInc.,2004.
[15]刘波,韩彦辉.FLAC原理、实例与应用指南[M].北京:人民交通出版社,2005.(Liu Bo,Han Yanhui.The principal of FLAC,examples and application guide[M].Beijing:China Communications Press,2005.(in Chinese))
[16]陈育民,徐鼎平.FLAC/FLAC3D基础与工程实例[M].北京:中国水利水电出版社,2008.(Chen Yu-min,Xu Dingping.The foundation of FLAC/FLAC3Dand engineering examples[M].Beijing:China Water-power Press,2008.(in Chinese))
[17]祁生文,伍法权,严福章.岩质边坡动力反应分析[M].北京:科学出版社,2007.(Qi Shengwen,WuFaquan,Yan Fuzhang.Rock slope dynamic response a-nalysis[M].Beijing:Science Press,2007.(in Chi-nese))
[2]雷文杰.沉埋桩加固滑坡体的有限元设计方法与大型物理模型试验研究[D].北京:中国科学院研究生院,2006.(Lei Wenjie.Study on dedign method ofdeeply buried piles stabilizing slides and large scaledmodel tests[D].Beijing:Graduate University of ChineseAcademy of Science,2006.(in Chinese))
[3]雷文杰,郑颖人,王恭先,等.沉埋桩加固滑坡体模型试验的机制分析[J].岩石力学与工程学报,2007,26(7):1 347-1 355.(Lei Wenjie,Zhang Yingren,Wang Gongxian,et al.Mechanism analysis of slope re-inforcement with deeply buried piles with model test[J].Chinese Journal of Rock Mechanics and Engineer-ing,2007,26(7):1 347-1 355.(in Chinese))
[4]雷用.滑坡治理中抗滑短桩受力特性研究[D].重庆:后勤工程学院,2007.(Lei Yong.Research onloading characters of anti-slide pile during slope treat-ment[D],Chongqing:Logistical Engineering Universi-ty,2007.(in Chinese))
[5]宋雅坤,郑颖人,雷文杰.沉埋式抗滑桩机制模型试验数值分析研究[J].岩土力学,2007,26(5):103-107.(Song Yakun,Zheng Yingren,Lei Wenjie.Analy-sis of the experimental mechanism of deeply buried anti-slide pile by FEM[J].Rock and Soil Mechanics,2007,26(5):103-107.(in Chinese))
[6]中华人民共和国国土资源部.滑坡防治工程设计与施工技术规范(DZ/T0219—2006)[S].北京:中国标准出版社,2006.(The National Land and ResourcesMinistry of the PRC.Specification of design and con-struction for landslide stabilization(DZ/T0219—2006)[S].Beijing:China Standard Press,2006.(in Chi-nese))
[7]郑颖人,赵尚毅,张鲁渝.用有限元强度折减法进行边坡稳定分析[J].中国工程科学,2002,4(10):57-62.(Zheng Yingren,Zhao Shangyi,Zhang Luyu.Slopestability analysis by strength reduction FEM[J].Engi-neering Science,2002,4(10):57-62.(in Chinese))
[8]赵尚毅,郑颖人,张玉芳.极限分析有限元法讲座———Ⅱ有限元强度折减法中边坡失稳的判据探讨[J].岩土力学,2005,26(2):332-336.(Zhao Shan-gyi,Zheng Yingren,Zhang Yufang.Study on slope fail-ure criterion in strength reduction finite element method[J].Rock and Soil Mechanics,2005,26(2):332-336.(in Chinese))
[9]Itasca Consulting Group,Inc..FLAC.(Fast LagrangianAnalysis 3D)User's Manual,Version 3.0.MI.Is.1.J:Itasca Consulting Group,Inc.,2003.
[10]李海波,肖克强,刘亚群.地震荷载作用下顺层岩质边坡安全系数分析[J].岩石力学与工程学报,2007,26(12),2 385-2 394.(Li Haibo,Xiao Keqiang,LiuYaqun.Factor of safety analysis of bedding rock slopeunder seismic load[J].Chinese Journal of Rock Me-chanics and Engineering,2007,26(12),2 385-2 394.(in Chinese))
[11]戴妙林,李同春.基于降强法数值计算的复杂岩质边坡动力稳定性安全评价[J].岩石力学与工程学报,2007,26(增1),2 749-2 754.(Dai Miaolin,Li Tong-chun.Analysis of dynamic stability safety evaluation forcomplex rock slopes by strength reduction numericalmethod[J].Chinese Journal of Rock Mechanics andEngineering,2007,26(Supp.1),2 749-2 754.(inChinese))
[12]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):1 714-1 723.(Zheng Yingren,Ye Hailin,HuangRunqiu.Discussion and analysis on failure mechanismand fracture surface of slope under earthquake effect[J].Chinese Journal of Rock Mechanics and Engineer-ing,2009,28(8):1 714-1 723.(in Chinese))
[13]郑颖人,赵尚毅.用有限元强度折减法求边(滑)坡支挡结构的内力[J].岩石力学与工程学报,2004,23(20):3 552-3 558.(Zheng Yingren,Zhao Shangyi.Calculation of inner force of support structure for land-slide/slope by using strength reduction FEM[J].Chi-nese Journal of Rock Mechanics and Engineering,2004,23(20):3 552-3 558.
[14]Itasca Consulting Group Inc..FLAC(Fast Lagrangianaanalysis of continua)User Manuals(Version 5.0)[R].Minneapolis,Minnesota:Itasca Consulting GroupInc.,2004.
[15]刘波,韩彦辉.FLAC原理、实例与应用指南[M].北京:人民交通出版社,2005.(Liu Bo,Han Yanhui.The principal of FLAC,examples and application guide[M].Beijing:China Communications Press,2005.(in Chinese))
[16]陈育民,徐鼎平.FLAC/FLAC3D基础与工程实例[M].北京:中国水利水电出版社,2008.(Chen Yu-min,Xu Dingping.The foundation of FLAC/FLAC3Dand engineering examples[M].Beijing:China Water-power Press,2008.(in Chinese))
[17]祁生文,伍法权,严福章.岩质边坡动力反应分析[M].北京:科学出版社,2007.(Qi Shengwen,WuFaquan,Yan Fuzhang.Rock slope dynamic response a-nalysis[M].Beijing:Science Press,2007.(in Chi-nese))
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