活木桩桩位及桩长对岸坡稳定性的影响
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摘要
为研究河道生态修复工程中活木桩生态型护岸对岸坡稳定性的影响,选取两种不同性质的土体,采用ABAQUS有限元强度折减法分析计算了活木桩不同布设桩位及桩长情况下的岸坡稳定安全系数。计算结果表明,在不同性质的土体中,受桩体长度与岸坡潜在滑动面深度的影响,活木桩布设位置及长度对岸坡稳定性的影响呈现出不同的规律;不当的活木桩布设不仅不能发挥其加固边坡的作用,反而会降低岸坡的整体稳定性。
In order to study the effect of ecological bank protection on the stability of bank slopes in the ecological rehabilitation project of river courses, two different types of soils are selected in this paper. ABAQUS finite element strength reduction method is used to analyze and calculate long bank slope stability safety factor with the different pile positions and piles of live wood piles. of the different pile positions and piles of live wood piles. The calculation results show that the effect of the location of live stakes on the stability of the bank slope is different in different types of soils, which is related to whether the pile extends to the potential slide surface of the bank slope; and the improper arrangement of live stakes cannot only be avoided. To play its role in strengthening the slope, it will reduce the overall stability of the slope.
In order to study the effect of ecological bank protection on the stability of bank slopes in the ecological rehabilitation project of river courses, two different types of soils are selected in this paper. ABAQUS finite element strength reduction method is used to analyze and calculate long bank slope stability safety factor with the different pile positions and piles of live wood piles. of the different pile positions and piles of live wood piles. The calculation results show that the effect of the location of live stakes on the stability of the bank slope is different in different types of soils, which is related to whether the pile extends to the potential slide surface of the bank slope; and the improper arrangement of live stakes cannot only be avoided. To play its role in strengthening the slope, it will reduce the overall stability of the slope.
引文
[1]董哲仁,孙东亚,赵进勇,等.河流生态修复[M].北京:中国水利水电出版社,2013.
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[3]董哲仁,孙东亚.生态水利工程原理与技术[M].北京:中国水利水电出版社,2007.
[4]ITO T,MATSUI T,HONG W P.Design method for stabilizing piles against landslide-One row of piles.[J].Soils&Founda-tions,1981,21(1):21-37.
[5]HASSISOTIS S,CHAMEAU J L,GUNARATNE M.Design Method for Stabilization of Slopes with Piles[J].Journal of Geotechnical&Geoenvironmental Engineering,1997,125(10):314-323.
[6]LEE C Y,HULL T S,POULOS H G.Simplified pile-slope stability analysis[J].Computers&Geotechnics,1995,17(1):1-16.
[7]CAI F,UGAI K.NUMERICAL ANALYSIS OF THE STABILITY OFA SLOPE REINFORCED WITH PILES[J].Journal of the Japanese Geotechnical Society Soils&Foundation,2008,40(1):73-84.
[8]年廷凯,徐海洋,刘红帅.抗滑桩加固边坡三维数值分析中的几个问题[J].岩土力学,2012,33(8):2521-2526,2535.
[9]戴自航,彭振斌.土体滑坡治理的合理设计与计算[J].中南大学学报(自然科学版),2000,31(2):98-101.
[10]方有令,潘昌树,张小顺,等.软弱带对土质边坡稳定性影响分析[J].水运工程,2017(3):157-161.
[11]汪宏,朱超,浦陈宇,等.高桩码头岸坡设计研究[J].江苏科技大学学报(自然科学版),2017,31(3):385-389.
[12]雷伟.土力学[M].长春:吉林出版集团,2011.
[13]费康,彭劼.ABAQUS岩土工程实例详解[M].北京:人民邮电出版社,2017.
[14]吕志刚.软土地基上大尺寸模袋砂围堰稳定性分析[D].广州:华南理工大学,2016.
[15]朱霈原,张发明,丁志阳.基于FLAC 3D的某库区堆积体稳定性评价[J].北华大学学报(自然科学版),2013,14(1):121-124.
[16]杨正玉,吴礼浩.基于强度折减法的抗滑桩对双滑动带边坡稳定性分析[J].江苏建筑,2018(2):79-83.
[17]孙岩平.抗滑桩失效判断与滑坡稳定性分析[D].西安:长安大学,2013.
[18]吴明辉,盛建龙,张晶.抗滑桩位置对边坡稳定性影响程度的研究[J].化工矿物与加工,2017,46(3):35-37,42.
[19]马志强,邓守来.墙前梯形截面有限土体的板桩码头结构设计[J].水运工程,2016(6):72-75.
[20]张建华,丁磊.ABAQUS基础入门与案例精通[M].北京:电子工业出版社,2012.
[21]田佳,曹兵,及金楠,等.花棒根-土复合体直剪试验的有限元数值模拟与验证[J].农业工程学报,2015,31(16):152-158.
[2]陈杰,韩妮妮.土质稳定性对生态护坡工程建设的影响分析[J].人民珠江,2017,38(3):50-53.
[3]董哲仁,孙东亚.生态水利工程原理与技术[M].北京:中国水利水电出版社,2007.
[4]ITO T,MATSUI T,HONG W P.Design method for stabilizing piles against landslide-One row of piles.[J].Soils&Founda-tions,1981,21(1):21-37.
[5]HASSISOTIS S,CHAMEAU J L,GUNARATNE M.Design Method for Stabilization of Slopes with Piles[J].Journal of Geotechnical&Geoenvironmental Engineering,1997,125(10):314-323.
[6]LEE C Y,HULL T S,POULOS H G.Simplified pile-slope stability analysis[J].Computers&Geotechnics,1995,17(1):1-16.
[7]CAI F,UGAI K.NUMERICAL ANALYSIS OF THE STABILITY OFA SLOPE REINFORCED WITH PILES[J].Journal of the Japanese Geotechnical Society Soils&Foundation,2008,40(1):73-84.
[8]年廷凯,徐海洋,刘红帅.抗滑桩加固边坡三维数值分析中的几个问题[J].岩土力学,2012,33(8):2521-2526,2535.
[9]戴自航,彭振斌.土体滑坡治理的合理设计与计算[J].中南大学学报(自然科学版),2000,31(2):98-101.
[10]方有令,潘昌树,张小顺,等.软弱带对土质边坡稳定性影响分析[J].水运工程,2017(3):157-161.
[11]汪宏,朱超,浦陈宇,等.高桩码头岸坡设计研究[J].江苏科技大学学报(自然科学版),2017,31(3):385-389.
[12]雷伟.土力学[M].长春:吉林出版集团,2011.
[13]费康,彭劼.ABAQUS岩土工程实例详解[M].北京:人民邮电出版社,2017.
[14]吕志刚.软土地基上大尺寸模袋砂围堰稳定性分析[D].广州:华南理工大学,2016.
[15]朱霈原,张发明,丁志阳.基于FLAC 3D的某库区堆积体稳定性评价[J].北华大学学报(自然科学版),2013,14(1):121-124.
[16]杨正玉,吴礼浩.基于强度折减法的抗滑桩对双滑动带边坡稳定性分析[J].江苏建筑,2018(2):79-83.
[17]孙岩平.抗滑桩失效判断与滑坡稳定性分析[D].西安:长安大学,2013.
[18]吴明辉,盛建龙,张晶.抗滑桩位置对边坡稳定性影响程度的研究[J].化工矿物与加工,2017,46(3):35-37,42.
[19]马志强,邓守来.墙前梯形截面有限土体的板桩码头结构设计[J].水运工程,2016(6):72-75.
[20]张建华,丁磊.ABAQUS基础入门与案例精通[M].北京:电子工业出版社,2012.
[21]田佳,曹兵,及金楠,等.花棒根-土复合体直剪试验的有限元数值模拟与验证[J].农业工程学报,2015,31(16):152-158.