|Table of Contents|

Experiment on Vertical Bearing Capacity of Deep Rock-socketed Pile for Baling River Bridge(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2011年04期
Page:
43-47
Research Field:
Publishing date:
2011-12-20

Info

Title:
Experiment on Vertical Bearing Capacity of Deep Rock-socketed Pile for Baling River Bridge
Author(s):
GONG Cheng-zhong12 HE Chun-lin2 DAI Guo-liang1
1. School of Civil Engineering, Southeast University, Nanjing 210096, Jiangsu, China; 2. School of Architecture and Civil Engineering, Huaiyin Institute of Technology, Huai'an 223001, Jiangsu, China
Keywords:
deep rock-socketed pile self-balanced method frictional resistance of pile side resistance of pile tip vertical bearing capacity piled foundation
PACS:
TU473.1
DOI:
-
Abstract:
Based on the piled foundation testing of 2 deep rock-socked piles from Baling River Bridge of Guizhou Province and self-balanced testing technique, the vertical bearing capacity of piled foundation was tested and the testing results were discussed. The exertion of frictional resistance of pile side and resistance of pile tip of piled foundation of deep rock-socked pile, and the influential factors of them were analyzed. The study results indicate that load-displacement curve of large diameter and deep rock-socketed pile in this area becomes slowly declining. From the view of frictional resistance of pile side of rock, the value of ultimate side resistance which is provided by exploration report is less than the true one; with the point distribution of frictional resistance of pile side and tip resistance, the size which pile has embedded in sock has greater impact on the bearing capacity in the soft rock area, the rock-socketed ratio is greater, the corresponding bearing capacity is greater, and the deformation is smaller.

References:

[1] 黄生根,梅世龙,龚维明.南盘江特大桥岩溶桩基承载特性的试验研究[J].岩石力学与工程学报,2004,23(5):809-813. HUANG Sheng-gen,MEI Shi-long,GONG Wei-ming.Testing Study on Bearing Behavior of Piles for Nanpan River Great Bridge in Karst Area[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(5):809-813.
[2]程 晔,龚维明,戴国亮,等.软岩桩基承载性能试验研究[J].岩石力学与工程学报,2009,28(1):165-172. CHENG Ye,GONG Wei-ming,DAI Guo-liang,et al.Research on Bearing Performance of Socketed Pile in Soft Rock[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(1):165-172.
[3]董 平,秦 然,陈 乾,等.大直径人工挖孔嵌岩桩的承载性状[J].岩土力学与工程学报,2003,22(12):2099-2103. DONG Ping,QIN Ran,CHEN Qian,et al.Bearing Behavior of Large-diameter Rock-socket Piles[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(12):2099-2103.
[4]戴国亮,龚维明,刘欣良.自平衡试桩法桩土荷载传递机理原位测试[J].岩土力学,2003,24(6):1065-1069. DAI Guo-liang,GONG Wei-ming,LIU Xin-liang.Experimental Study of Pile-soil Load Transfer Behavior of Self-balanced Pile[J].Rock and Soil Mechanics,2003,24(6):1065-1069.
[5]龚维明,戴国亮.桩承载力自平衡测试技术及工程应用[M].北京:中国建筑工业出版社,2006. GONG Wei-ming,DAI Guo-liang.The Self-balanced Testing and Engineering Application on Bearing Cap-acity of Piles[M].Beijing:China Architecture & Building Press,2006.
[6]刘绍舜,罗贤武,房铁柱,等.振动沉管法CFG桩的施工技术[J].筑路机械与施工机械化,2007,24(10):51-53. LIU Shao-shun,LUO Xian-wu,FANG Tie-zhu,et al.Construction of CFG Pile for Vibratory Immersed Tunneling Method[J].Road Machinery & Construction Mechanization,2007,24(10):51-53.
[7]龚成中,龚维明,何春林,等.孔壁粗糙度对深嵌岩桩承载特性的影响[J].中国公路学报,2011,24(2):56-61. GONG Cheng-zhong,GONG Wei-ming,HE Chun-lin,et al.Influence of Hole Side Roughness on Bearing Characteristic of Deep Rock-socketed Pile[J].China Journal of Highway and Transport,2011,24(2):56-61.
[8]王海鹏,单 炜,王 平,等.季冻区摩擦单桩承载能力计算分析[J].长安大学学报:自然科学版,2011,31(2):52-56. WANG Hai-peng,SHAN Wei,WANG Ping,et al.Calculation and Analysis of Friction Pile Bearing Cap-acity in Season Frozen Area[J].Journal of Chang'an University:Natural Science Edition,2011,31(2):52-56.
[9]丁江澍,刘伯权,冼耀强.空间错位双排密贴PHC桩支护结构分析[J].长安大学学报:自然科学版,2010,30(4):66-71. DING Jiang-shu,LIU Bo-quan,XIAN Yao-qiang.Analysis of Retaining Structure with Space Double-row Layout Dislocation PHC Piles[J].Journal of Chang'an University:Natural Science Edition,2010,30(4):66-71.
[10]梅瑞泰.高级PHP泥浆在深水大直径桩基施工中的应用[J].筑路机械与施工机械化,2009,26(8):65-67. MEI Rui-tai.Application of Advanced PHP Slurry in Construction of Large Diameter Bored Piles in Deep Water[J].Road Machinery & Construction Mechan-ization,2009,26(8):65-67.
[11]DGJ 32/TJ 77—2009,基桩自平衡法静载试验技术规程[S]. DGJ 32/TJ 77—2009,Technical Specification for Static Loading Test of Self-balanced Method of Foundation Pile[S].

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Last Update: 2011-12-20