Negative friction computational research of rock-socketed pile based on load transfer method

被引：0
作者：
机构：
[1] Geotechnical Engineering Institute, Hunan University, Changsha
[2] College of Civil Engineering, Hunan University of Science and Technology, Xiangtan, 411201, Hunan
来源：
Zhao, Ming-Hua | 1600年 / Tsinghua University卷 / 31期
关键词：
Effective stress; Negative friction resistance; Power series solution; Rock-socketed pile; The load transfer method;
D O I：
10.6052/j.issn.1000-4750.2013.05.0441
中图分类号：
学科分类号：
摘要：
The negative friction piecewise calculation model of a rock-socketed pile was established by the effective stress method, combining with the load transfer method. Then the analytical solution and the power series solution of pile body displacements and axial forces were obtained by a displacement control equation. Furthermore, the iterative calculation method used to calculate the pile shaft axial forces and the neutral position of negative skin friction resistance was proposed. Through the analysis of an engineering example and using linear fitting method to accurately describe the soil subsidence, the change curve of pile axial-forces along the pile within the scope is identical with a measured curve. The method can accurately describe the negative friction transmission process and its distribution along a pile. ©, 2014, Gongcheng Lixue/Engineering Mechanics. All right reserved.
引用
收藏
页码：110 / 115
页数：5
相关论文
共 12 条
  • [1] Ma S., Study on negative skin friction along pile shaft with field test , Rock and Soil Mechanics, 18, 1, pp. 8-15, (1997)
  • [2] Lu W., Leng W., Wang Y., In-situ tests on negative friction resistance of abutment piles in soft soil , Chinese Journal of Geotechnical Engineering, 27, 6, pp. 642-645, (2005)
  • [3] Johannessen I.J., Bjerrum L., Measurements of the compression of a steel pile to rock due to settlement of the surrounding clay , Proceedings of the Sixth International Conference on Soil Mechanics and Foundation Engineering, pp. 261-264, (1965)
  • [4] JGJ 94-2008, Technical code for building pile foundations , (2008)
  • [5] Zhao M., Lei Y., Liu X., Settlement calculation of the single pile's negative skin friction with shear displacement method , Journal of Hunan University (Natural Sciences), 35, 7, pp. 1-6, (2008)
  • [6] Zhao M., He W., Cao W., Study on calculation of negative skin friction resistance on piles , Rock and Soil Mechanics, 25, 9, pp. 1442-1446, (2004)
  • [7] Chen R., Zhou W., Cao W., Et al., Improved hyperbolic model of load-transfer for pile soil interface and its application in study of negative friction of single piles considering time effect , Chinese Journal of Geotechnical Engineering, 29, 6, pp. 824-830, (2007)
  • [8] Chen R.P., Zhou W.H., Chen Y.M., Influences of soil consolidation and pile load on the development of negative skin friction of a pile , Computers and Geotechnics, 36, 8, pp. 1265-1271, (2009)
  • [9] Zhao M., Lei Y., Analysis of bearing capacity characteristic of rock socketed piles based on fractal theory , Engineering Mechanics, 29, 12, pp. 127-133, (2012)
  • [10] Zhao M., Liu Q., Cao X., Et al., Evaluation of vertical bearing capacity of super-long bored single pile by the pile head settlement , Engineering Mechanics, 23, 2, pp. 92-96, (2006)
12