| 桩土摩擦粘着特性及分析方法 |
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| 引用本文： | 宋兵.桩土摩擦粘着特性及分析方法[J].科学技术与工程,2010,10(9). |
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| 作者姓名： | 宋兵 |
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| 作者单位： | 1. 华南理工大学,土木与交通学院,广州,510063;广州市建筑科学研究院,广州,510440
2. 华南理工大学,土木与交通学院,广州,510063 |
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| 基金项目： | 国家自然科学基金(59978084)资助 |
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| 摘 要： | 同一土层的桩侧摩阻力在不同条件下取值会有很大区别,因此有必要对桩侧摩阻力的影响因素进行分析。分析了桩土的摩擦粘着机理,指出影响侧摩阻力的因素主要为桩土界面强度及土层强度,其中桩土界面强度包括界面摩擦力和界面粘着力两部分。根据机理分析提出使用有限元法配合试验结果进行分析应包括两方面的(1)根据试验实测结果通过试算确定侧摩阻力极值由桩土界面强度决定还是由土层强度决定;(2)若侧摩阻力由界面强度决定则根据土层特性进行摩擦系数假定,进而确定界面摩擦力及粘着力。介绍了ADINA建模及计算过程。通过应用一组混凝土短桩的静载试验结果进行计算分析来说明分析过程。
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| 关 键 词： | 桩 桩侧摩阻力 ADINA 有限元分析 摩擦 |
| 收稿时间： | 2009/12/20 0:00:00 |
| 修稿时间： | 2009/12/20 0:00:00 |
Characteristic and Analysis Method of Friction and Adherence of Pile and Soil |
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| songbing.Characteristic and Analysis Method of Friction and Adherence of Pile and Soil[J].Science Technology and Engineering,2010,10(9). |
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| Authors: | songbing |
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| Institution: | School of Civil Engineering and Transportation1/a>;South China University of Technology/a>;Guangzhou 510063/a>;P.R.China/a>;Guangzhou Institute of Building Science2/a>;Guangzhou 510440/a>;P.R.China |
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| Abstract: | The shaft soil resistance of pile may change in different situation. It is important to analyze the influence factors of it. The friction and adherence mechanics of shaft soil resistance of pile are analyzed. It is indicated that the main influence factors are the strength of pile-soil interface and the strength of soil. The strength of pile-soil interface include interface friction and interface adherence. Accordingly,finite element analysis of testing piles should include following content. First,to judge... |
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| Keywords: | pile shaft soil resistance of pile ADINA finite element analysis friction |
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