Abstract：Research purposes: Based on the ABAQUS finite element analysis software，three kinds of finite element calculation models for Y － Section Pile，square pile and circular pile were established． The elastic model was employed for the pile，while Mohr － Coulomb elastic － plastic model for the soil． Under the case with the same pile layout and area exchange rate，the variations of the total and different settlements of cover plate and soil among adjacent piles，pile － top and pile － end average stress were investigated in the process of stage embankment loading．
Research conclusions: It is known by comparison that the maximum settlement of cover plate occurs in the circular pile，followed by the square and Y － section piles; the settlement of soil between piles for circular pile is largest，while that for square pile firstly greater and then less than Y － section pile; the different settlement between cover plate and inter － pile soil for circular pile is of maximum，followed by Y － section and square piles; the pile － top and pile － end average stress for square pile is greater than circular and Y － section piles in turn．
王新泉，陈永辉，陈龙，齐昌广. 路堤荷载下Y 形桩与常规桩型对比研究[J]. 铁道工程学报, 2011, 28(11): 46-51.
WANG Xin － quan，CHEN Yong － hui，CHEN Long，QI Chang － guang. Comparative Study on Bearing Characteristics of Y － Section Pile and Common Piles under Embankment Load. 铁道工程学报, 2011, 28(11): 46-51.
Chen Zhenghan，Liu Yuanxue，etc． Innovation of Pile Foundation Technology － Y Style Vibropile Technology ［C］/ /The 10th Chinese Conference on Soil Mechanics and Geotechnical Engineering． Chongqing: Chongqing University Press，2007．
Xu Lixin，Yang Shaohua，Duan Bing． Field Tests on Y － shaped Vibro Piles to Improve Soft Clay Ground under the Expressways ［J］． Chinese Journal of Geotechnical Engineering，2007( 1) : 120 － 124．
［4］ 王新泉，陈永辉． Y 型沉管灌注桩截面几何性质的计算与优化［J］． 土木工程学报，2007( 增1) : 198 － 204．
Wang Xinquan，Chen Yonghui． Geometry Character Calculation and Optimizing of Y Style Vibro － pile［J］．China Civil Engineering Journal，2007( S1) : 198 － 204．
［5］ 王新泉． Y 形沉管灌注桩承载特性及设计方法研究［D］．南京: 河海大学，2009．
Wang Xinquan． Bearing Behavior and Design Method Research of Y － shaped Pile ［D］． Nanjing: HoHai University，2009．
［6］ J． HAN AND M． A． GABR． Numerical Analysis of Geosynthetic － reinforced and Pile － supported Earth Platforms over Soft Soil［J］． Journal of Geotechnical and Geoenvironmental engineering，ASCE，2002 ( 1 ) :44 － 53．
［7］ H． L． LIU，CHARLES W． W． NG，K． Fei． Performance of a Geogrid － reinforced and Pile － supported Highway Embankment over Soft Soil: Case Study ［J］． Journal of Geotechnical and Geoenvironmental Engineering，ASCE，2007( 2) : 1483 －1493．
Wang Jiaquan，Zhou Jian，Ccong Lin，etc． Analysis between Numerical and Field Tests of High Fill Reinforced Widening Embankment［J］． Chinese Journal of Rock Mechanics and Engineering，2010 ( 1) : 2943 －2950．
［9］ 王新泉，陈永辉，刘汉龙． Y 形沉管灌注桩荷载传递机制的现场试验研究［J］． 岩石力学与工程学报，2008( 3) : 615 － 623．
Wang Xinquan，Chen Yonghui ，Liu Hanlong． In － situ Study on Load Transfer Mechanism of Y － Section Pile［J ］． Chinese Journal of Rock Mechanics and Engineering，2008( 3) : 615 － 623．
［10］ LEE J， KIM Y， JEONG S． Three － dimensional Analysis of Bearing Behavior of Piled Raft on Soft Clay［J］． Computers and Geotechnics，2010 ( 1 － 2) : 103 －114．
［11］ Emilios M． Comodromos，Mello C． Papadopoulou，Ioannis K． Rentzeperis． Pile Foundation Analysis and Design Using Experimental Data and 3 － D Numerical Analysis［J］． Computers And Geotechnics，2009 ( 5) : 819 － 836．
Wu Peng，Xi Weiming，Liang Shuting． Study of Base Bearing Capacity of Overlength Single Pile Using 3D FEM［J］． Rock and Soil Mechanics，2006( 10) : 1795 －1799．
Zhang Qixing， Lu Chaoxin． Numerical Study on Behavior of Super － long Two － pile Foundation in Homogeneous Soil ［J］． Chinese Journal of Geotechnical Engineering，2008( 6) : 945 － 951．
Wei YongXing，Xue Xinhua． Discussion on Calculation Method for Settlement of Pile － net Structure Subgrade［J］． Journal of Railway Engineering Society，2010( 10) : 36 － 40．
2011, Vol. 28 
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