桩基软弱下卧层承载力验算方法分析

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桩基软弱下卧层承载力验算方法分析

雷丰浩, 田敬贤, 王成华

文章导航 > 岩土工程技术 > 2013 > 27(1): 1-4

雷丰浩, 田敬贤, 王成华. 桩基软弱下卧层承载力验算方法分析[J]. 岩土工程技术, 2013, 27(1): 1-4. doi: 10.3969/j.issn.1007-2993.2013.01.001

引用本文:

雷丰浩, 田敬贤, 王成华. 桩基软弱下卧层承载力验算方法分析[J]. 岩土工程技术, 2013, 27(1): 1-4. doi: 10.3969/j.issn.1007-2993.2013.01.001

Lei Fenghao, Tian Jingxian, Wang Chenghua. Analysis of Methods for Checking Bearing Capacity of Underlying Weak Layer in Pile Foundation Design[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2013, 27(1): 1-4. doi: 10.3969/j.issn.1007-2993.2013.01.001

Citation:

Lei Fenghao, Tian Jingxian, Wang Chenghua. Analysis of Methods for Checking Bearing Capacity of Underlying Weak Layer in Pile Foundation Design[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2013, 27(1): 1-4. doi: 10.3969/j.issn.1007-2993.2013.01.001

雷丰浩, 田敬贤, 王成华. 桩基软弱下卧层承载力验算方法分析[J]. 岩土工程技术, 2013, 27(1): 1-4. doi: 10.3969/j.issn.1007-2993.2013.01.001

引用本文:

雷丰浩, 田敬贤, 王成华. 桩基软弱下卧层承载力验算方法分析[J]. 岩土工程技术, 2013, 27(1): 1-4. doi: 10.3969/j.issn.1007-2993.2013.01.001

Lei Fenghao, Tian Jingxian, Wang Chenghua. Analysis of Methods for Checking Bearing Capacity of Underlying Weak Layer in Pile Foundation Design[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2013, 27(1): 1-4. doi: 10.3969/j.issn.1007-2993.2013.01.001

Citation:

Lei Fenghao, Tian Jingxian, Wang Chenghua. Analysis of Methods for Checking Bearing Capacity of Underlying Weak Layer in Pile Foundation Design[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2013, 27(1): 1-4. doi: 10.3969/j.issn.1007-2993.2013.01.001

桩基软弱下卧层承载力验算方法分析

doi: 10.3969/j.issn.1007-2993.2013.01.001

1. 天津大学建筑工程学院, 天津 300072;
2. 河北工业大学校园规划处, 天津 300401

基金项目:

国家自然科学基金项目(50978182)

作者简介:
雷丰浩,1989年生,男,汉族,河南洛阳人,硕士研究生。研究方向:深基础。E-mail:leifh1989@163.com

中图分类号: TU431
计量
- 文章访问数: 71
- HTML全文浏览量: 6
- PDF下载量: 10
- 被引次数: 0
出版历程
- 收稿日期: 2012-10-12

Analysis of Methods for Checking Bearing Capacity of Underlying Weak Layer in Pile Foundation Design

1. School of Civil Engineering, Tianjin University, Tianjin 300072, China;
2. Department of Campus Planning. Hebei University of Technology, Tianjin 300401, China

摘要: 桩基软弱下卧层承载力验算是桩基础设计的重要内容之一,对《建筑桩基技术规范》JGJ 94-94及JGJ 94-2008中关于桩基软弱下卧层承载力验算方法进行了对比分析。考虑了承台上土自重以及群桩实体基础侧摩阻力取值对验算结果的影响,认为两版规范中关于软弱下卧层顶面附加应力的计算均有不当之处。提出了以下建议:前者较适合于没有地下室的柱下群桩基础,后者则较适用于有地下室的桩-箱(筏)基础;计算附加应力时所扣除的群桩实体基础的侧摩阻力应取特征值。
- 桩基础 /
- 软弱下卧层 /
- 承载力 /
- 自重应力 /
- 侧摩阻力
Abstract: Checking for the bearing capacity of underlying weak layer is an important item in pile foundation desigru The different methods which are suggested in Technical Code for Building Pile Foundations JGJ 94-1994 and JGJ 94-2008 are comparatively analyzed. The self weight of soil above cap and the shaft resistance around the pile group are analyzed. Deficiencies of the methods are found in the two codes, some suggestions are put forward:the former is fit for small-scale pile foundation without basement while the latter is fit for piled box(raft) foundation with basement, the shaft resistance around the pile group should use the characteristic value when calculate the additional stress.
- pile foundation /
- underlying weak layer /
- bearing capacity /
- self-weight stress /
- shaft resistance

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文章访问数: 71
HTML全文浏览量: 6
PDF下载量: 10
被引次数: 0

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