Abstract
Pile design must be considered in three separate aspects: structural strength, displacement, and geotechnical capacity (bearing capacity). In the conventional design concept, the design bearing capacity of a pile does not take into account the negative friction, usually assumed to be about 30–40% of its ultimate capacity. The large safety factor in estimating the pile capacity is quite controversial. Many design methods have been proposed recently that take into account the negative friction effect. The approach is the calculation of: neutral plane, structural strength, soil settlement, pile displacement and, geotechnical capacity of pile. Meanwhile, the friction capacity at pile – soil interface estimated by the analytical formulas is obviously inaccurate and it is difficult to understand how the frictions are mobilized. This study proposes a simplified method for pile design that can overcome the mentioned difficulties. The results of this study show that this method may be applied to design practices.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Cao, V.H. (2015). An analysis on raft deformation in piled raft foundation on Ho Chi Minh City sand by PRAB. Vietnam IBST Journal of Science and Construction Technology, No. 2/2015, ISSN 1859-1566, pp 52–60.
Cao, V.H. (2017). An analysis of raft behavior laying on pile group. HoChi Minh City University of Technology, Ho Chi Minh City.
Erkens et al. (2015). Prevention and mitigation of natural and anthropogenic hazards due to land subsidence Sinking coastal cities. Proc. IAHS, 372,189–198,Proc-iahs.net/372/189/2015/
Fellenius, B.H. (2004). UNIFIED DESIGN OF PILED FOUNDATIONS WITH EMPHASIS ON SETLEMENT ANALYSIS. Geo-Institute Geo-TRANS Conference, Los Angeles, July 27–30.
Fellenius, B.H. (1984). Negative skin friction and settlement of piles. Second International Seminar, Pile Foundations, Nanyang Technological Institute, Singapore, 28–30 Nov.
Inoue, Y., Tamaoki, K., and Ogai, T. 1977. Settlement of building due to pile downdrag. Proc. 9th ICSMFE, Tokyo, July 10–15, Vol. 1, pp. 561–564.
Kitiyodom, P., and Matsumoto, T. (2002). A simplified analysis method for piled raft and pile group foundations with batter piles. International Journal for Numerical and Analytical Methods in Geomechanics, vol. 1369, pp. 1349–1369.
Kitiyodom, P., and Matsumoto, T. (2003). A simplified analysis method for piled raft foundations in non-homogeneous soils. International Journal for Numerical and Analytical Methods in Geomechanics, vol. 27, Issue 2, pp.85–109.
Koerner, R.M., and Mukhopadhyay, C. (1971). Behavior of negative skin friction on model piles in medium plasticity silt. Drexel University.
Lee, C.J., Bolton, M.D., and Al-Tabaa, A. (2001). Recent finding on negative skin friction in piles and pile group in consolidating ground. 5th International Conference on Deep Foundation Practice incoporating Pile talk, Singapore, 4–6/Appril.
Nguyen and Phienwej (2016). Practice and Experience in Deep Excavation in Soft Soil of Ho Chi Minh City, Vietnam. KSCE Journal of Civil Engineering, 20(6): 2221-2234, Eissn 1976-3808.
Okabe, T. (1977). Large negative skin friction and friction-free methods. Proc. 9th ICSMFE, Tokyo, Vol.1, pp. 679–683.
Poulos, H.G. (1997). Piles Subjected to Negative Friction: A procedure for design. Journal of Southeast Asian Geotechnical society, volume 28.
Poulos, H.G. (2001). METHODS OF ANALYSIS OF PILED RAFT FOUNDATIONS. A Report Prepared on Behalf of Technical Committee TC18 on Piled Foundations, July.
Thiem, Q. T., Huynh, N. S., and Tran, L.T.D. (2007). “Understanding the mechanism of land subsidence due to groundwater extraction in Hiep Binh Phuoc Industrial Park, Thu Duc District, Ho Chi Minh City. Journal of Science and Technology Development, Volume 10, No. 6 (In Vietnamese).
Tomlinson, M.J. (1994). Pile design and construction practice. E & FN SPON. An imprint of Chapman & Hall, London.
Acknowledgment
In this paper, the authors used PRAB program, a present to Construction Department of University Architecture of HCM city by Prof. T. Matsumoto. The authors of this paper sincerely are thankful for Prof Matsumoto’s team.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Hoa, C.V. (2020). Pile design with consideration of down drag. In: Duc Long, P., Dung, N. (eds) Geotechnics for Sustainable Infrastructure Development. Lecture Notes in Civil Engineering, vol 62. Springer, Singapore. https://doi.org/10.1007/978-981-15-2184-3_18
Download citation
DOI: https://doi.org/10.1007/978-981-15-2184-3_18
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-15-2183-6
Online ISBN: 978-981-15-2184-3
eBook Packages: EngineeringEngineering (R0)