Paper Title:
Model Test of Roughness’ Influence on Bearing Mechanism in Rock-Socketed Pile
  Abstract

The interface roughness between pile and rock in rock-socketed pile can influence its bearing mechanism largely. At present the numerical simulation, which simulates the interface roughness with changing the surface shape or interface friction coefficient, is used to study the interface roughness’ influence on pile’s bearing mechanism. It can reveal the pile bearing mechanism in some degree; however, there are some defects and limitations in simulation because of its assumptions and simplifications. Based on the pile foundation of Tian-xing-zhou Bridge, the model test is conducted to study the interface roughness’ influence on rock-socketed pile bearing mechanism. In the model test, the surface of model piles are made different ranging from smooth to rough, and the bed rock is simulated with mixture of sand and plaster, the rock-soil overlain the bed rock is simulated with silty sand, the pile is simulated with organic glass rod according to similarity principle respectively. The results show that load-settlement curves grow more gently, the ultimate bearing capacity is bigger, the proportion of point resistance is lower, and the shaft resistance is bigger which reaches more than 70% of total loading as the surface of pile is rougher. The conclusions are useful to deciding the length of pile foundation in Tian-xing-zhou Bridge.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
3072-3077
DOI
10.4028/www.scientific.net/AMR.243-249.3072
Citation
Y. Q. Wang, R. Gao, Y. W. Zeng, "Model Test of Roughness’ Influence on Bearing Mechanism in Rock-Socketed Pile", Advanced Materials Research, Vols. 243-249, pp. 3072-3077, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jin Lu Jia, Zhong Fu Wang, Jian Hua Zheng
Abstract:Squeezed branch pile is based on the traditional uniform pile in development of a new type of pile, with a high bearing capacity, settlement...
3244
Authors: Wei Dong Pan, Xiao Long Sheng, Ren Guo Gu, Ke Zhu
Chapter 2: Structural and New Functional Materials
Abstract:In the consolidation theory of sand drain foundation settlement, the influence of groundwater level changes on the soil consolidation has...
282
Authors: Si Si Liu, Xue Liang Jiang
Chapter 1: Geological and Geotechnical Engineering
Abstract:According to energy principle, numerical methods of axial force and displacement of tension-type anchor are derived. Firstly, mechanism of...
63
Authors: Li Jun Zhou, Ziai Lu, Wen Juan Wang
Chapter 1: Geological and Geotechnical Engineering
Abstract:Pile foundation design has gradually used the super-long pile structure form with the port and offshore engineering construction developing...
471
Authors: Hong Xia Li, Yong Wei Wang, Bai Xiao Tang
Chapter 2: Structural Engineering
Abstract:Similar model experiment under confining pressure, research latticed shell lining the mechanical properties and the carrying capacity of new...
774