|Table of Contents|

Test on bearing capacity of bored pile in pozzolana sediment area(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年06期
Page:
59-63
Research Field:
Publishing date:
2009-12-20

Info

Title:
Test on bearing capacity of bored pile in pozzolana sediment area
Author(s):
REN Wen-feng1; 2; WANG Xing-hua1; HAN Xiao-fei2
1.School of Civil Engineering and Architecture,Central South University,Changsha 410075,Hunan,China;2.China Road & Bridge Corporation International Construction Co Ltd,Beijing 100027,China
Keywords:
geotechnical engineering;  pozzolana sedimentary soil;  bored pile;  selfbalanced load test;  ultimate bearing capacity
PACS:
TU473.11
DOI:
-
Abstract:
Due to the special geological conditions of the pozzolanic sedimentary area, this paper studies the bearing behavior of each layer of the pozzolanic sedimentary rock by using selfbalanced load test and theoretical analysis of bored piles of Suramadu Bridge. The results show that: the relative pilesoil displacement is less than 20 mm when all layers reach the limits of its frictional resistance, and the relationship between side friction and pilesoil displacement can be approximated as a hyperbola; when the bearing capacity of large diameter and superlong pile is up to its ultimate, the value of piletip bearing capacity accounts for a larger proportion; side friction exerts before the pile tip resistance does. The allowable bearing capacity of piletip soil and the displacement of piletop are the controlling factors of ultimate bearing capacity in the pozzolanic sedimentary rock. 2 tabs, 6 figs, 9 refs.

References:

［1］王建,任文峰，王乾林.火山灰沉积地区钻孔泥浆性能试验［J］.长安大学学报:自然科学版,2007,27（6）:6771. WANG Jian,REN Wenfeng,WANG Qianlin.Character of boring slurry in pozzuolana sediment area［J］.Journal of Changan University:Natural Science Edition,2007,27(6):6771.
[2]王建,任文峰.苏拉马都大桥钻孔桩泥浆性能研究［J］.筑路机械与施工机械化,2007,24(2):4446. WANG Jian,REN Wenfeng.Study on slurry character of Suramadu bridge bored pile［J］.Road Machinery & Construction Mechanization,2007,24(2):4446.
[3]樊恒辉,高明霞，李鹏，等.粘土分散性的判别试验［J］.长安大学学报:自然科学版,2007,27(2):7680. FAN Henghui,GAO Mingxia,LI Peng,et al.Experimental study on clay dispersibility［J］.Journal of Changan University:Natural Science Edition,2007,27(2):7680.
[4]胡琦忠，金伟良，史方华，等.大型跨海桥梁基础结构正常使用极限状态的可靠度分析［J］.中国公路学报,2008,21(1):5358.HU Qizhong,GIN Weiliang,SHI Fanghua,et al.Reliability analysis of foundation structures of offshore longspanbridges on serviceability limit states［J］.China Journal of Highway and Transport,2008,21(1):5358.
[5]高亚成,郑建青.水泥土的室内试验研究［J］.河海大学学报,1999,27(5):103106. GAO Yacheng,ZHENG Jianqing.Laboratory experimental research on cement soil［J］.Journal of Hehai University,1999,27(5):103106.
[6]胡庆立,张克绪.大直径桩的竖向承载力性能研究［J］.岩土工程学报,2002,24(4):491495. HU Qingli,ZHANG Kexu.Research on axial bearing behavior of large diameter piles［J］.Chinese Journal of Geotehnical Engineering,2002,24(4):491495.
[7]李素华,周健,殷建华,等.摩擦型单桩承载性能设计理论研究［J］.岩石力学与工程学报,2004,23(15):26592664. LI Suhua,ZHOU Jian,Yin Jianhua,et al.Study on bearing performance of friction pile foundation in complicated soillayers［J］.Chinese Journal of Rock Mechanics and Engineering,2004,23(15):26592664.
[8]Combarieu O.Prossiometer test and the endbearing load of pile［J］.Bulletin de Liaison des Loratoires des Ponts et Chaussees,1996,20(3):6173.
[9]冯忠居,谢永利,李哲,等.大直径超长钻孔灌注桩承载力性状［J］.交通运输工程学报,2005,5(1):2427. FENG Zhongju,XIE Yongli,LI Zhe,et al.Bearing property of largediameter overlength nonplacement pile［J］.Journal of Traffic and Transportation Engineering,2005,5(1):2427.

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Last Update: 2009-12-20