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浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (8): 1430-1434    DOI: 10.3785/j.issn.1008-973X.2011.08.017
土木工程     
淤质与粉质互层土中管桩沉桩过程的土压力
张忠苗1, 谢志专2, 刘俊伟1, 俞峰3
1.浙江大学 岩土工程研究所，软弱土与环境土工教育部重点试验室，浙江 杭州 310058； 2.杭州市西湖区城建
建设中心，浙江 杭州 310012；3.浙江理工大学 建筑工程学院，浙江 杭州 310018
The earth pressure during pile driving in silty soil
with mucky soil interbed
ZHANG Zhong-miao1, XIE Zhi-zhuan2, LIU Jun-wei1, YU Feng3
1. Institute of Geotechnical Engineering, MOE Key Laboratory of Soft Soils and Geoenvironmrnt Engineering, Zhejiang
University, Hangzhou 310058, China; 2. Hangzhou Xihu district urban construction centre, Hangzhou 310012, China；
3. College of Architectural and Civil, zhejiang scitech university, Hangzhou 310018, China
 全文: PDF 
摘要：

为了研究预应力空心开口管桩沉桩过程中周围土体中的土压力分析,选取杭州郊区某建筑工地进行现场试验.本次试验在试验场地内和防挤沟两侧共埋设了6组振弦式孔隙水压力计和土压力盒,并且在管桩桩端安装了一个土压力盒测试管桩沉桩过程中桩端土压力的变化情况.试验结果表明：在沉桩过程中,周围土体中的径向土压力呈先增大后减少趋势,随着深度的增加,径向土压力的影响越来越大；桩端阻力的变化与静力触探锥尖阻力的变化曲线较为相似,锥尖阻力的变化曲线相比桩端阻力表现出更为明显的波动.该试验结果能够为相关研究和设计提供参考和依据.
关键词： 粉质与淤泥互层土;  管桩;  径向土压力    
Abstract:

In order to study the earth pressure during the pile driving, a filed test was did at a building site in Hangzhou suburbs. Six group pressure meter and earth pressure cell were installed at the center of the site and the both sides of the holes to relax stress. A earth pressure was also installed at the tip of the pile to study the earth pressure of the pile tip during pile driving. The test results show that the radial earth pressure increases at the first and decreases at the end during pile driving. With the increase of depth, the effect of the radial earth pressure gets larger; The change of pile tip resistance is similar with the cone penetration test static point resistance and the cone penetration test static point resistance is more significant than the change of pile tip resistance. The test results can offer reference and basis for study and design similarly.
Key words: silty soil with mucky soil interbed    pile    the radial earth pressure
出版日期: 2011-08-30
:  TU 473.1  
通讯作者: 谢志专，男，硕士生.     E-mail: xzz705@163.com
作者简介: 张忠苗（1961—），男，教授，博导，主要从事基础工程与桩基础的研究.E-mail: zjuzzm@163.com
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引用本文:

张忠苗, 谢志专, 刘俊伟, 俞峰. 淤质与粉质互层土中管桩沉桩过程的土压力[J]. J4, 2011, 45(8): 1430-1434.

ZHANG Zhong-miao, XIE Zhi-zhuan, LIU Jun-wei, YU Feng. The earth pressure during pile driving in silty soil
with mucky soil interbed. J4, 2011, 45(8): 1430-1434.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2011.08.017    或    http://www.zjujournals.com/xueshu/eng/CN/Y2011/V45/I8/1430

［1］ 张忠苗.桩基工程［M］.北京：中国建筑工业出版社,2007.
［2］ 张忠苗.软土地基大直径桩受力性状与桩端注浆新技术［M］.杭州：浙江大学出版社.2001.
［3］ 张忠苗.灌注浆后注浆技术及工程应用［M］.北京：中国建筑工业出版社,2009.
［4］ 刘俊伟,张明义,赵洪福,等.基于球孔扩张理论和侧阻力退化效应的压桩力模拟［J］.岩土力学,2009,30(4): 1181-1185.
LIU Junwei, ZHANG Mingyi, ZHAO Hongfu, et al. Computational simulation of jacking force based on spherical cavitiy expasion theory and friction fatigue effect ［J］. Rock and Soil Mechanics, 2009, 30(4): 1181-1185.
［5］ BOZOZUK M, FELLENIUS B H, SAMSON L. Soil disturbance from pile driving in sensitive clay ［J］. Canadian Geotechnical Journal ,1978,15: 346-361.
［6］ PESTANA J M, HUNT C E, BRAY J D. Soil deformation and excess pore pressure field around a closedended pile ［J］. Journal of Geotechnical and Geoenvironmental Engineering,2002,128(1): 1-9.

［7］ MCCABE B A, LEHANE B M.Behavior of axially loaded pile group driven in clayed silt ［J］. Journal of Geotechnical and Geoenvironmental Engineering, 2006, 132 (3): 401-410.
［8］ 何耀辉,朱向荣,徐崇峰,等.静压桩沉桩挤土效应现场监测与分析［J］.低温建筑技术,2005,（3）: 76-78.
HE Yaohui, ZHU Xiangrong, XU Chongfeng.Madsurement and analysis of soil horizontal displacement and excess pore pressure during piles driving ［J］.Low Temperature Architecture Technology, 2005,（3）: 76-78.
［9］ 朱向荣,何耀辉,徐崇峰.饱和软土单桩沉桩超孔隙水压力分析［J］.岩石力学与工程学报,2005,24(增刊2): 5740-5744.
ZHU Xiangrong, HE Yaohui, XU Chongfeng. Excess pore water pressure caused by single pile driving in saturated soft soil ［J］.Chinese Journal of Rock Mechanics and Engineering, 2005, 24(supp.2): 5740-5744.
［10］ Xu Xiangtao,Liu Hanglong, LEHANE B M. Pipe pile installation effects in soft clay ［J］.Proceedings of the Institution of Civil Engineers: Geotechnical Engineering, 2006,159(4): 285-296.
［11］ 唐世栋,何连生,叶真华.软土地基中桩基施工引起的径向土压力增量［J］.岩土工程学报,2002,24(6): 752-755.
TANG Shidong, HE Liansheng, YE Zhenhua. Increment of lateral pre s sure caused by installation of pile in soft foundation ［J］.Chinese Journal of Geotechnical Engineering, 2002,24(6): 752-755.
［12］ 唐世栋,何连生,傅纵.软土地基中单桩施工引起的超孔隙水压力［J］.岩土力学,2002,23(6): 725-732.
TANG Shidong, HE Liansheng,FU Zong. Excess pore water pressure caused by an installing pile in soft foundation ［J］.Rock and Soil Mechanics, 2002,23(6): 725-732.
［13］ 唐世栋,王永兴,叶真华.饱和土地基中群桩施工引起的超孔隙水压力［J］.同济大学学报,2003,31(11): 1290-1294.
TANG Shidong, WANG Yongxing, YUE Zhenhua.Excess pore water pressure caused by installing pile group installing pile group in saturated soft soil［J］. Journal of tongji university, 2003,31(11): 1290-1294.
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