Results 61 to 70 of about 121 (93)

Research on Stress Distribution of CFG Pile-Net Composite Foundation in High-Speed Railway

Applied Mechanics and Materials, 2013
Combined with the field tests of CFG (Cement Fly-ash Gravel) pile-net (geogrid) composite foundation in Danyang Test Section of the Beijing-Shanghai High-speed Railway, the settlement, pile-soil stress ratio and additional stress of composite foundation were analyzed by numerical simulation.
Ji Wen Zhang
exaly   +2 more sources

Analysis of Effect of CFG Pile Composite Foundation Pile Spacing on Embankment Stability Based on Centrifugal Model Tests

Applied Mechanics and Materials, 2012
The cement-fly ash-gravel (CFG)pile composite foundation played an important role in increasing the soft soil foundation strength and stability, and decreasing the foundation settlement etc, because that the pile strength potentiality could be fully developed and soils bearing capacity also could be fully utilized.
Jin Song Zhang, Chao Guo, Shi Wei Xiao
exaly   +2 more sources

Design of CFG-pile composite foundation under isolated foundation bearing eccentric compression

2011 International Conference on Electric Technology and Civil Engineering (ICETCE), 2011
For the problems existed in equal bearing capacity design methods of CFG-pile composite foundation under isolated foundation bearing eccentric compression, a new design method called unequal bearing capacity design method is proposed. In this study, the theoretical derivation is employed to obtain the design formula of the CFG-pile composite foundation,
null LeiXiaoyu, null SunXunhai, null ZhaoFuli, null YanXuefeng   +3 more
exaly   +2 more sources

Temperature analysis of CFG pile composite foundation in high latitudes and low altitude island permafrost

International Journal of Structural Integrity, 2019
Purpose Cement fly ash gravel (CFG) pile composite foundation is an effective and economic foundation treatment approach, which is significant to build foundation, subgrade construction, and so forth. The purpose of this paper is to present a research on the temperature behaviours of high-latitude and low-altitude island permafrost under CFG pile ...
Jinliang Liu
exaly   +2 more sources

Composite Foundation on Bearing Characteristics and Simulation Analysis CFG Pile for the High Speed Railway

Applied Mechanics and Materials, 2011
With the rapid development of high-speed railway in soft foundation, foundation treatment technology has become mature, the most outstanding is CFG pile composite foundation technique. CFG pile composite foundation is made of cement fly ash gravel pile(CFG pile), pile of soil and sandstone , between sand and gravel several problems such as the medium ...
A Lan Jiang, Mei Xia Wang
exaly   +2 more sources

Full-scale Test for Composite Foundation of Backfilled Lateritic Clay Strata based on CFG Miniature Pile

2021 2nd International Conference on Urban Engineering and Management Science (ICUEMS), 2021
In order to obtain the reasonable parameter values for the design of CFG miniature pile composite foundation in Guangxi Guilin lateritic clay strata, the outdoor full-scale test was conducted. In addition, the strength enhancement coefficient of soil among piles (α), the strength efficiency factor of soil among piles(β), the bearing capacity efficiency
LIU Yuan, Peng Majun, Zhang Zhaojing, WEI Cheng   +3 more
exaly   +2 more sources

An Analysis on Failure Pattern of CFG Pile-Net Composite Foundation of High-Speed Railway

Advanced Materials Research, 2012
CFG pile-net composite foundation has the advantages of small post construction settlement and uneven settlement, easy control of construction quality and fast construction speed. It`s widely used in subgrade engineering of high-speed railway. However, in coastal soft soil area, phenomena like breaking pile, collapsed embankment, cracking in embankment
Dan Ping Jiang, Bing Long Wang
exaly   +2 more sources

Field experiment and numerical analysis of bearing features of CFG pile composite foundation of expressway

Proceedings 2011 International Conference on Transportation, Mechanical, and Electrical Engineering (TMEE), 2011
A field experiment had been conducted on the bearing capacity of a CFG-pile composite foundation for the sand-filled embankment for a certain expressway. The finite difference method could be adopted to build the mathematical model and to conduct a numerical calculation of the pile-soil stress of the composite foundation and the sedimentation of the ...
Gong Min
exaly   +2 more sources

Three-dimensional nonlinear finite element modeling of composite foundation formed by CFG–lime piles

Computers and Geotechnics, 2008
Abstract Cement–Flyash–Gravel (CFG) pile is a widely used ground improvement technique. A CFG–lime multi-pile composite foundation is a new concept utilizing CFG and lime piles. This study presents the results of finite element analyzes using ANSYS software to investigate the behavior of composite CFG–lime pile foundations under various load ...
Jun-Jie Zheng, Sári W Abusharar
exaly   +2 more sources

Numerical Simulation on the Reinforcing Effect of New CFG Pile-Board Structure Composite Foundation

Advanced Materials Research, 2011
The new CFG pile-board structure composite foundation is a ground treatment technique based on CFG pile foundation and pile-board structure composite foundation. It can make full use of the load distributing function of board, the bearing capacity and the deformation compatibility of soil between piles, by taking advantage of the pile-platform-soil ...
exaly   +2 more sources