Development of Graphical Method of Pile Group Foundation Design

Abstract:

In the construction projects, a pile group foundation is often utilized. The group of bored piles is usually installed relatively close to each other and joined at the top by a pile cap to hold up the loads. In other hand, a fast estimation of the groups of piles capacities are needed in the preliminary design and in other conditions of projects, such as a supervisor of projects want to estimate the capacities of the group of piles. The purpose of this research is to study the correlations of groups of piles efficiencies with the number of piles and to compare the groups of piles capacities with the single piles capacities. Furthermore, this study is aimed to make a fast estimation of groups of piles capacities using proposed graphical method.The piles efficiencies are calculated using several methods, such as Simplified Analysis, Converse-Labare [1][2], Los Angeles Group, Seiler - Keeney, Das, and Sayed - Baker. In order to calculate the groups of piles capacities, the capacities of single piles are needed. The singles piles capacities are taken from graphical method proposed by Djarwanti et al. (2015a and 2015b). Three graphical methods utilized are derived from the Briaud et al. (1985) , Reese and Wright (1977), and Reese O’Neill method. Moreover, the proposed graphical method is applied in the case study. The case study takes palace in Graha Indoland Condotel Inside Yogyakarta Construction Project.The pile efficiency graph is recommended for this research since the value of pile efficiency could be easily taken. The value of pile efficiency for Graha Indoland Condotel Inside using Simplified Analysis, Converse - Labare, Los Angeles Group, Seiler – Keeney, Das, and Sayed – Baker are 1,75; 0,89; 0,94; 0,99; 4,00; 1,56 respectively. Meanwhile the value of pile group capacity with the value of pile group efficiency more than 1, showed that the pile group capacity based on the efficiency is bigger than the one based on single down pattern.

• Periodical: Applied Mechanics and Materials (Volume 845)
• Pages: 94-99
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.845.94
• Online since: July 2016
• Authors: Noegroho Djarwanti*, Raden Harya Dananjaya, Fauziah Prasetyaningrum
• Keywords: Foundation Engineering, Graphical Method Design, Pile Group Capacity, Pile Group Efficiency

References

[1] H. G. Poulus and E. H. Davis, Pile Foundation Analysis and Design. Canada: John Wiley & Sons, Inc., (1980).

[2] B. M. Das, Principle of Foundation Engineering, Third. Boston: PWS Publishing Company, (1995).

[3] C. J. Krechowiecki-Shaw and I. M. Alobaidi, An interaction chart design method for Eurocode compliant railway electrification mast foundations, Constr. Build. Mater., vol. 92, p.104–110, Sep. (2015).

DOI: 10.1016/j.conbuildmat.2014.05.046

[4] N. Djarwanti, R. H. Dananjaya, and O. F. Arganata, Korelasi Daya Dukung Pondasi Tiang Bor dengan Metode Reese and O'neill terhadap Metode Terzaghi and Peck Berdasarkan Hasil Uji SPT, Matriks Tek. Sipil, vol. 3, no. 3, Oct. (2015).

DOI: 10.21009/jmenara.v14i2.18119

[5] N. Djarwanti, R. H. Dananjaya, and G. Maharani, Komparasi Nilai Daya Dukung Tiang Tunggal Pondasi Bor Menggunakan Data SPT, dan Hasil Loading Test pada Tanah Granuler, Matriks Tek. Sipil, vol. 3, no. 3, Sep. (2015).

DOI: 10.20961/mateksi.v8i1.41517

[6] E. Bowles Joseph, Foundation analysis and design, 5th ed. Mc. Graw Hill Companies, (1996).

[7] M. J. Tomlinson, Foundation Design and Construction, 6th ed. Longman, Singapore, (1995).

[8] D. P. Coduto, Foundation Design Principles and Practices. New Jersey: Prentice-Hall, Inc., (1994).

[9] W. C. Teng, Foundation Design. Englewood Cliffs: Prantice-Hall, Inc., (1962).

[10] M. F. Winterkorn and H. Y. Fang, Foundation Engineering Handbook. New York: Van Norstrand Reinhold Company, (1975).

[11] A. M. Hanna, G. Morcous, and M. Helmy, Efficiency of pile groups installed in cohesionless soil using artificial neural networks, Can. Geotech. J., vol. 41, no. 6, p.1241–1249, (2004).

DOI: 10.1139/t04-050