重力式挡土墙抗滑动稳定计算方法改进研究
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摘要
针对目前重力式挡土墙抗滑稳定性计算方法中存在的缺陷,将挡土墙入土部分划分成小网格,遍历搜寻出抗倾覆稳定系数最小的点,此点就是挡土墙的实际倾覆转动点所在的位置,根据此转动点的位置,将挡墙两侧的土体划分成四个部分分别计算各部分土压力,再结合墙底与地基土摩擦力的分析,推导出改进的墙体抗滑动稳定系数的计算公式。还通过改变墙体的几何参数,分析了最小抗倾覆转动点的位置和墙体抗滑稳定性系数随墙体宽度、挡土墙入土深度等的变化规律。
The present anti-sliding stability calculations of gravity retaining wall has some defects.This paper had divided the retaining walls that buried into earth in small grid.By searching for the point of minimum stability factor against overturning. This point is the actual turning point of the retaining walls.According to the location of this turning point,both sides of the wall are divided into four sections in order to calculated the earth pressure.At the end of the analysis,combining the friction of soil and foundation wall to get the improved anti-sliding stability factor formula.This article also,analysised the location of the minimum turning point of overturning and the anti-sliding coefficient of stability,and how they change with the change of retaining walls,width and depth that buried into earth.
The present anti-sliding stability calculations of gravity retaining wall has some defects.This paper had divided the retaining walls that buried into earth in small grid.By searching for the point of minimum stability factor against overturning. This point is the actual turning point of the retaining walls.According to the location of this turning point,both sides of the wall are divided into four sections in order to calculated the earth pressure.At the end of the analysis,combining the friction of soil and foundation wall to get the improved anti-sliding stability factor formula.This article also,analysised the location of the minimum turning point of overturning and the anti-sliding coefficient of stability,and how they change with the change of retaining walls,width and depth that buried into earth.
引文
[1]赵同新、高霈生.深基坑支护工程的设计与实践[M].北京:地震出版社,2010.
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[3]李卫超、熊巨华、杨敏.水泥土围护结构抗倾覆验算转点位置讨论[J].低温建筑技术,2010,32(2): 28-30.
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[6]李卫超、熊巨华、杨敏.分层土中水泥土围护结构抗倾覆验算方法的改进[J].岩石力学,2011,32(8): 2435-2440.
[7]方云、林彤、谭松林.土力学[M].武汉:中国地质大学出版社,2002.
[8]侍倩.地基处理技术[M].武汉:武汉大学出版社, 2011.
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[10]陈家骏,郑滔.程序设计教程用C++语言编程.北京:机械工业出版社.
[2]刘杰、孙志亮、付宝亮,重力式水泥搅拌桩挡土墙稳定性的分析研究[J].四川建筑科学研究,2006,32 (5):102-105.
[3]李卫超、熊巨华、杨敏.水泥土围护结构抗倾覆验算转点位置讨论[J].低温建筑技术,2010,32(2): 28-30.
[4]刘昌辉、时红莲.基础工程学[M].武汉:中国地质大学出版社,2005.
[5]王成华、张守良、戴北冰.水泥土搅拌桩挡墙抗倾覆稳定验算[J].低温建筑技术,2006(5):101-104.
[6]李卫超、熊巨华、杨敏.分层土中水泥土围护结构抗倾覆验算方法的改进[J].岩石力学,2011,32(8): 2435-2440.
[7]方云、林彤、谭松林.土力学[M].武汉:中国地质大学出版社,2002.
[8]侍倩.地基处理技术[M].武汉:武汉大学出版社, 2011.
[9]郑莉,董渊,张瑞丰.C++语言程序设计(第3版)[M].北京:清华大学出版社.
[10]陈家骏,郑滔.程序设计教程用C++语言编程.北京:机械工业出版社.
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