Numerical simulation and field test study on vertical bearing behavior of large diameter steel of inclined piles

被引：0
|
作者：
Xu J. [1 ,2 ]
Gong W.-M. [1 ,2 ]
Zhang Q. [1 ,2 ]
Dai G.-L. [1 ,2 ]
Huo S.-L. [1 ,2 ]
Yang C. [1 ,2 ]
机构：
[1] School of Civil Engineering, Southeast University, Nanjing, 210096, Jiangsu
[2] Key Laboratory of C and PC Structure of Ministry of Education, Southeast University, Nanjing, 210096, Jiangsu
来源：
| 1600年 / Academia Sinica卷 / 38期
基金：
中国国家自然科学基金;
关键词：
Field test; Finite element analysis; Inclined piles; Large diameter steel pile; Vertical bearing behavior;
D O I：
10.16285/j.rsm.2017.08.033
中图分类号：
学科分类号：
摘要：
Currently, there are few studies on inclined pile field test. Four piles at the position of 40 # and 41 # fans (two vertical piles, two inclined pile) were tested for their vertical bearing capacity in Donghai Bridge Wind Farm Phase II project. Prior to testing, the ABAQUS was used for preliminary analysis on vertical piles and inclined piles under reasonable conditions and selected soil parameters. it found that the calculated results and post-test results are close, and after comparing calculated results and the results of test piles, it showed: 1) at the project site conditions, finite element analysis and experimental results showed that the vertical ultimate bearing capacity of inclined pile was less than vertical ultimate bearing capacity of vertical pile. 2) when the inclined pile was under axial load, the settlement and the settlement value range on the anticline side of the soil were significantly greater than that on the oblique side; 3) the finite element analysis and the parameter value were more reasonable, which could provide reference for similar project preliminary analysis; 4) ultimate bearing capacity of the two vertical piles was less than design value: ultimate bearing capacity of the two inclined piles was greater than the design value; the proportion of pile side resistance of the two inclined piles was higher than that of two vertical piles; the proportion of pile side resistance was lower than two vertical piles. © 2017, Science Press. All right reserved.
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页码：2434 / 2440and2447
相关论文
共 13 条
  • [1] Zhao M.-H., Hou Y.-Q., Cao X.-R., Study on the behavior of inclinedly loading pile, Journal of Hunan University, 24, 2, pp. 98-109, (1997)
  • [2] Lu F.-R., Chen Y.-M., Chen R.-P., Et al., Analysis of batter pile under arbitrary inclined loads in semi-infinite solid, Journal of Zhejiang University (Engineering Science), 38, 2, pp. 191-194, (2004)
  • [3] Wang Y.-G., Zhang G., Hu Q., Study of force characteristics of battered pile foundation, Rock and Soil Mechanics, 32, 7, pp. 2184-2190, (2011)
  • [4] Zheng G., Wang L., Load transfer and bearing capacity of inclined pile under vertical load, Chinese Journal of Geotechnical Engineering, 30, 3, pp. 323-330, (2008)
  • [5] Meyerhof G.G., Behavior of pile foundations under special loading conditions: 1994 R. M. Hardy keynote address, Canadian Geotechnical Journal, 32, pp. 204-222, (1995)
  • [6] Wang X.-Q., Chen Y.-H., An Y.-F., Et al., Model test study of effect of inclination on bearing behaviors of plastic tube cast-in-place concrete pile, Chinese Journal of Rock Mechanics and Engineering, 30, 4, pp. 834-841, (2011)
  • [7] Li L.-Q., Luo S.-X., A simulation test study of vertical bearing capacity of inclined pile foundation in inhomogeneous strata, Rock and Soil Mechanics, 33, 5, pp. 1300-1305, (2012)
  • [8] Kong G.-Q., Yang Q., Zheng P.-Y., Model tests on negative skin friction for inclined pile considering time effect, Chinese Journal of Geotechnical Engineering, 31, 4, pp. 617-621, (2009)
  • [9] Cao W.-P., Lu Q.-Y., Fan W.-F., Et al., Experimental study of load transfer behavior of batter piles under vertical loads, Rock and Soil Mechanics, 11, pp. 3048-3056, (2016)
  • [10] Miao Y., Dai G.-L., Gong W.-M., Finite element analysis of settlement interaction of inclined pile caps, Chinese Journal of Geotechnical Engineering, 32, 2, pp. 208-211, (2010)
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