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[1]周峰,张峰,刘壮志,等.位移调节器用于混合支承桩基础的模型试验[J].南京工业大学学报(自然科学版),2013,35(04):38-42.[doi:10.3969/j.issn.1671-7627.2013.04.008]
 ZHOU Feng,ZHANG Feng,LIU Zhuangzhi,et al.Model test on mixed bearing pile foundation with settlement adjustor[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(04):38-42.[doi:10.3969/j.issn.1671-7627.2013.04.008]
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位移调节器用于混合支承桩基础的模型试验()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
35
期数:
2013年04期
页码:
38-42
栏目:
出版日期:
2013-07-01

文章信息/Info

Title:
Model test on mixed bearing pile foundation with settlement adjustor
文章编号:
1671-7627(2013)04-0038-05
作者:
周峰1张峰1刘壮志2王旭东1
1. 南京工业大学 交通学院,江苏 南京 210009; 2. 上海强劲地基工程股份有限公司,上海 200233
Author(s):
ZHOU Feng1ZHANG Feng1LIU Zhuangzhi2WANG Xudong1
1. College of Transportation Science & Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. Shanghai Qiangjing Foundation Engineering Co. Ltd., Shanghai 200233,China
关键词:
位移调节器 优化设计 桩-土共同作用 差异沉降控制
Keywords:
settlement adjustor optimization design pile-soil interaction differential settlement control
分类号:
TU473
DOI:
10.3969/j.issn.1671-7627.2013.04.008
文献标志码:
A
摘要:
为了研究位移调节器对混合支承桩筏基础的桩-土-筏板共同作用的影响,通过2组室内模型试验对安装调节器桩筏基础的作用机制进行对比分析。结果表明:桩筏基础设置位移调节器后,受荷时桩顶向上“刺入”,桩顶一定范围有负摩阻力分布; 和常规桩基础相比,设置位移调节器改变了桩筏基础的荷载传递规律; 合适刚度的调节器不仅可以充分发挥地基土承载力,而且可以优化摩擦-端承混合桩基支承刚度,减小筏板的差异沉降。
Abstract:
The installation of settlement adjustor could make it more reasonable for the stress distribution in mixed bearing pile raft foundation. Two groups of models were tested to study the influence of settlement adjustor on the interaction of pile-soil-raft with mixed bearing pile raft foundation. The results showed that piles with settlement adjustor penetrated upward after loading, and there was a negative friction resistance distribution in the top region of piles. The load transfer rule of pile raft foundation with settlement adjustor was changed compared with that of conventional file foundations. By installing settlement adjustor with suitable bearing stiffness, the capacity of soil would be developed, the supporting rigidity of mixed bearing pile foundation be optimized and the differential settlement of raft be reduced.

参考文献/References:

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[2] 周峰,刘松玉,刘壮志.基于零差异沉降控制的地基基础优化设计方法[J].沈阳建筑大学学报:自然科学版,2009,25(6):1077-1083.
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[9] 周峰,宰金珉,梅国雄,等.桩土变形调节装置的研制与应用[J].建筑结构,2009,39(7):40-42.
[10] 宰金珉,周峰,裴捷,等.端承桩复合桩基及其设计方法[J].工业建筑,2008,38(1):60-64.
[11] 宰金珉,周峰,梅国雄,等.自适应调节下广义复合基础设计方法与工程实践[J].岩土工程学报,2008,30(1):93-99.

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备注/Memo

备注/Memo:
收稿日期:2013-01-17
基金项目:国家自然科学青年基金(51008159); 国家自然科学基金面上项目(51278244)
作者简介:周峰(1979—),男,江苏阜宁人,博士,副教授,主要研究方向为桩基工程,E-mail:nutzhoufeng@163.com..
更新日期/Last Update: 2013-07-07