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Hada Passenger CFG pile composite foundation with MIP bearing behavior of pile

Author: WuZuo
Tutor: LuoShuXue
School: Southwest Jiaotong University
Course: Geotechnical Engineering
Keywords: Rigid and Flexible double pile composite foundation CFG pile MIP pile Bearing Properties Deep Soft Soil Field Test Numerical
CLC: U213.1
Type: Master's thesis
Year: 2010
Downloads: 65
Quote: 2
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Abstract


In recent years , with the vigorous development of infrastructure , cement and fly ash gravel (CFG) pile composite foundation of this type of foundation treatment in various projects has been widely applied to obtain a good project results and economic benefits . CFG pile composite foundation is a single pile composite foundation in engineering practice has been used more often. But for CFG pile and cement mixing pile (MIP) of this rigid flexible double pile composite foundation, both in engineering applications and theoretical studies are still less , in view of this , the paper elaborates bearing traits such rigid flexible double- pile composite foundation in deep soft soil layer operating characteristics . With the help of Harbin-Dalian Railway Passenger Station New Yingkou MIP CFG pile composite foundation with the specific examples of projects , mainly through on-site in-situ tests , numerical analysis , supplemented by the research methods, the CFG pile , MIP piles and piles in terms of soil bearing characteristics of each and their mutual coordination between the working relationship , CFG pile as a pair of rigid pile composite foundation is the main pile , this paper analyzes the CFG pile load transfer rules, while the composite foundation raft foundation bearing situation, and so a certain amount of analytical work , settlement and deformation , the paper studies the complex ground -based substrate subsidence deformation and its development trend . Through this research, mainly achieved the following: ( a ) on the field data analysis, the various components of composite foundation by the force Settlement patterns and trends in the base ; ( 2 ) with MATLAB computer language , combined with field data , obtained CFG pile side friction resistance distribution ; ( 3 ) application of two-dimensional finite element analysis software Plaxis established numerical model of composite foundation is analyzed and calculated , obtained composite foundation bearing the law ; ( 4 ) the numerical simulation data and field data were analyzed to verify the accuracy of the field data and reliability .

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CLC: > Transportation > Rail transport > Railway Line Project > Line constructed > Subgrade
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