Study on the Friction Transfer Rule of Piles in the Slope under the Vertical Load

Abstract:

The pile friction regular pattern in the slope has much difference with piles in the ground. By using the finite-difference software FLAC3D,the pile friction under the vertical load is studied. The regular pattern and influence factors are analyzed. The results show that there is a significant difference contrasting the friction of both sides of the pile. For the point of value, the friction closed to the slope-side is smaller than the friction away from the slope-side. The average is 60% to 70%. For the distribution, the friction closed to the slope-side decreases rapidly with the depth of the pile. The friction away from the slope-side distributes relatively evenly. The slope ratio and the pile location have a great impact on the friction. The friction has a negative correlation with the slope ratio, and has a positive correlation with the pile distance.

• Periodical: Applied Mechanics and Materials (Volumes 423-426)
• Pages: 1296-1300
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.423-426.1296
• Online since: September 2013
• Authors: Xing Yun Wang*, Bin Peng, Xiao Chao Tang, Lian Fan
• Keywords: FLAC^3D, Numerical Simulation, Pile Friction, Slope

References

[1] HUANG Feng; LI Guang-xin. Study on the shaft friction of single pile in compressive and tensile loading[J]. Engineering Mechanics, 1999, 16(6): 97-103.

[2] XU Yan, NAI Lei. Pile under different loading situation by the FEM simulation and analysis on pile lateral friction resistance [J]. Coal Geology & Exploration, 2007(03): 55-60.

[3] SONG Bing, CAI Jian. Characteristic and analysis method of friction and adherence of pile and soil [J]. Science Technology and Engineering, 2010(9): 2242-2249.

[4] Dong Jin-rong, Lin Sheng-tian, Dai Yi –min. The load tranfer behavjor of large diameter cast-in-situ pile in Crushed Pebble statum[J]. Engineering Journal of Wuhan University, 2009(06): 132-138.

[5] CHENG Liuyong, CHEN Shan-xiong, YU Fei. Numerical Simulation for Vertical Ultimate Capacity and Influencing Factors of Oblique Slope Pile under Vertical Loads. Science Technology and Engineering. 2013(18): 5399-5405.

[6] YU Xin-cai, LI Jian, SHANG Yi-min. Numerical Simulation Research on the Slope Pile Bearing Capacity and the Influencing Factors[J] . Science Technology and Engineering. 2012(35): 9753-9760.

[7] 《Engineering Geology HandbookEditorial Board》. Engineering Geology Manual [M]. Beijing: China Building Industry Press, (2007).

[8] Itasca Consulting Group Inc. FLAC2D(Fast Lagrangian Analysis of Continua)User's Guide[DB]. (2001).