|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-zhong1; 2;  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:

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Last Update: 2011-12-20