摘要A three-dimensional elastic-plastic finite element model based on the elastic-plastic constitutive relation of the non-associated flow Mohr-Coulomb criterion is constructed to analyze the influence of inclination angles of loads and piles on the mechanical properties of batter piles under inclined loads. The results indicate that (1) the stiffness of batter pile depends on both its axial and horizontal stiffness under a smaller inclined load and does not become maximum under an axial force because of the existing stiffness balance in the axial and horizontal directions. (2) The relationship between the ultimate compressive bearing capacity of batter pile and the load inclination angle exhibits an M shape. The peak of this capacity appears near a small load inclination angle rather than under axial load. (3) The stiffness and bearing capacity of batter pile increase with pile inclination under positive inclined loads, whereas the results show the opposite behavior under negative inclined loads. (4) The ultimate loads on batter pile with different inclinations are significantly affected by the coefficient of friction between the pile and soil.
Abstract：A three-dimensional elastic-plastic finite element model based on the elastic-plastic constitutive relation of the non-associated flow Mohr-Coulomb criterion is constructed to analyze the influence of inclination angles of loads and piles on the mechanical properties of batter piles under inclined loads. The results indicate that (1) the stiffness of batter pile depends on both its axial and horizontal stiffness under a smaller inclined load and does not become maximum under an axial force because of the existing stiffness balance in the axial and horizontal directions. (2) The relationship between the ultimate compressive bearing capacity of batter pile and the load inclination angle exhibits an M shape. The peak of this capacity appears near a small load inclination angle rather than under axial load. (3) The stiffness and bearing capacity of batter pile increase with pile inclination under positive inclined loads, whereas the results show the opposite behavior under negative inclined loads. (4) The ultimate loads on batter pile with different inclinations are significantly affected by the coefficient of friction between the pile and soil.
张麒蛰, 卓卫东. 倾斜受压荷载作用下斜桩受力特性的数值分析[J]. Journal of Highway and Transportation Research and Development, 2014, 8(2): 66-71.
ZHANG Qi-zhe, ZHUO Wei-dong. Numerical Analysis of the Mechanical Properties of Batter Piles under Inclined Loads. Journal of Highway and Transportation Research and Development, 2014, 8(2): 66-71.
[1] POULOS H G, DAVIS E H. Pile Foundation Analysis and Design[M]. New York:John Wiley and Sons Inc, 1980.
[2] MEYERHOF G G, RANJAN G. The Bearing Capacity of Rigid Piles under Inclined Loads in Sand. II:Batter piles[J]. Canadian Geotechnical Journal, 1973, 10(1):71-85.
[3] HANNA A M, AFRAM A. Pull-out Capacity of Single Batter Piles in Sand[J]. Canadian Geotechnical Journal, 1987, 24(3):387-392.
[4] SABRY M. Shaft Resistance of a Single Vertical or Batter Pile in Sand Subjected to Axial Compression or Uplift Loading[D]. Canada:Concordia University, 2001.
[5] JTG D63-2007, Code for Design of Ground Base and Foundation of Highway Bridges and Culvert[S].
[6] J464-2005, Code for Design on Subsoil and Foundation of Railway Highway Bridges and Culvert[S]. (in Chinese)
[7] GB50007-2002, Code for Design of Building Foundation[S]. (in Chinese)
[8] LÜ Fan-ren, CHEN Yun-min, CHEN Ren-peng, et al. Analysis of Batter Pile under Arbitrary Inclined Loads in Semi-infinite Solid[J]. Journal of Zhejiang University:Engineering Science, 2004, 38(2):191-194. (in Chinese)
[9] LIU Jie-wei, WANG Xing-bin, PAN Jian, et al. Study on Effects of Construction of Raked Piles Pile Group[J]. Journal of Kunming University of Science and Technology:Science and Technology, 2008, 33(1):56-59. (in Chinese)
[10] WANG Yun-gang, ZHANG Guang, HU Qi. Study of Force Characteristics of Batter Pile Foundation[J]. Rock and Soil Mechanics, 2011, 32(7):2184-2190. (in Chinese)
[11] WANG Jin-chang, CHEN Ye-kai. ABAQUS Application in Civil Engineering[M]. Hangzhou:Zhengjiang University Press, 2006. (in Chinese)
[12] MROUEH H, SHAHROUR I. Response of Piles to Inclined Uplift Loads:Influence of the Soil-pile Interface[J]. European Journal of Computational Mechanics, 2007, 16(3):419-436.
[13] ZHANG L M, MCVAY M C, HAN S J, et al. Effects of Dead Loads on the Lateral Response of Battered Pile Group[J]. Canadian Geotechnical Journal, 2002, 39(3):561-575.
[1]
常柱刚, 王林凯, 夏飞龙. 基于CV NewMark-b法桥梁风致振动FSI数值模拟[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 28-37.
2014, Vol. 8 
