Paper Title:
The Effect of CFG-Pile Caps and Cushion to Stability of Embankment
  Abstract

Subgrade diseases are exposed more and more serious with raising speed of existing railway in wide range. Dynamic numerical simulation had been done to analyze the effect of CFG-pile caps and cushion in composite foundation with CFG-pile in low embankment of Beijing-Shanghai high-speed railway. Distribution rules of dynamic displacement and dynamic stress of the subgrade surface and ground surface on the cross section, attenuation rules of dynamic response and dynamic stress ratio between pile and soil on the vertical section were studied. It shows that the dynamic stress of pile and soil generally attenuates in depth and attenuation of dynamic stress ratio between pile and soil mostly concentrates in the scope of 10m beneath the ground and dynamic stress caused by train load is undertaken by the pile. Moreover the scheme of CFG-pile with no pile caps and rigid cushion scheme is superior to that of pile caps and flexible cushion scheme for enhancing dynamic stability and reducing dynamic displacement and stress in low embankment. It will be instructive to control design and construction for the low embankment in Beijing-Shanghai high-speed railway.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
Building Materials
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
797-800
DOI
10.4028/www.scientific.net/AMR.287-290.797
Citation
Z. H. Wu, J. Y. Yuan, "The Effect of CFG-Pile Caps and Cushion to Stability of Embankment", Advanced Materials Research, Vols. 287-290, pp. 797-800, 2011
Online since
July 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: Ding Bang Zhang
Abstract:The new CFG pile-board structure composite foundation is a ground treatment technique based on CFG pile foundation and pile-board structure...
2415
Authors: Jian Xiang
Composites
Abstract:In order to analyze the effect of embankment height to dynamic stability, Cross-section in the Beijing-Shanghai high-speed railway is chosen...
145
Authors: Long Long Fu, Quan Mei Gong, Yang Wang
Chapter 5: Monitoring, Evaluation and Reinforcement Technique of Civil Engineering
Abstract:To investigate the dynamic transfer characteristics of low geosynthetic-reinforced embankments supported by CFG piles under high-speed train...
2575
Authors: Dan Ping Jiang, Bing Long Wang
Chapter 6: Road and Railway Engineering
Abstract:CFG pile-net composite foundation has the advantages of small post construction settlement and uneven settlement, easy control of...
1357