Investigation of Soil Arching Effect and Accumulative Deformation in Pile-Supported Embankments Subjected to Traffic Loading Using Numerical Modeling

被引:0
|
作者
Lang, Ruiqing [1 ]
Ma, Changhu [2 ]
Sun, Liqiang [3 ]
Mu, Kun [1 ]
Feng, Shouzhong [4 ]
Cheng, Xinglei [1 ]
Zhou, Long [5 ]
机构
[1] Tianjin Chengjian Univ, Key Lab Soft Soil Engn Character & Engn Environm T, Tianjin 300384, Peoples R China
[2] Dalian Univ Technol, Sch Infrastruct Engn, Dalian 116024, Peoples R China
[3] Tianjin Univ, Sch Civil Engn, Tianjin 300372, Peoples R China
[4] Chuzhou Univ, Coll Civil & Architecture Engn, Chuzhou 239099, Anhui, Peoples R China
[5] Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Jiangsu, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Pile-supported embankment; Traffic loading; Load transfer mechanism; Cumulative settlement; Numerical modeling; FINITE-ELEMENT-ANALYSIS; DISCRETE; BEHAVIOR; DESIGN; FEM;
D O I
10.1061/IJGNAI.GMENG-9105
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Pile-supported embankments, with advantages of high bearing capacity and effectiveness, have been widely used for constructing embankments on soft ground. The long-term load transfer and cumulative deformation mechanism caused by traffic loading are crucial to pile-supported embankment design and maintenance. A three-dimensional (3D) finite-element model of a pile-supported embankment to investigate its long-term load transfer and cumulative deformation mechanism under traffic loading is presented in this paper. The dynamic nonlinear behavior of the soft ground is considered by a simplified dynamic constitutive model that that has been effectively incorporated into the Abaqus program. In comparison with the results of published literatures, the applicability and accuracy of the proposed finite-element model are well verified at first. Then, the long-term load transfer and deformation mechanism are revealed by investing the soil arching and the cumulative deformation with a series of 3D numerical modeling. Furthermore, the influences of traffic loading type, speed of the vehicle, pile spacing, and total number of layers of grid on the long-term load transfer and deformation mechanism of the pile-supported embankment are investigated.
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页数:14
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