The Effect of w/c Ratio of Compacted Bored Pile to Friction Resistance of Unjani Clay

Authors

  • Agus Sulaeman Unjani
  • Muhamad Agung Universitas Jenderal Achmad Yani
  • Regi Fasya Septrian Universitas Jenderal Achmad Yani

DOI:

https://doi.org/10.26874/jt.vol20no1.409

Keywords:

Compaction pile, undrained shear strength, water-cement ratio, bored pile

Abstract

The small scale physical model of drum type was set-up to obtain the effect of water cement ratio (w/c) to pile capacity and original soil. The simulation of the process of providing bored piles model, soils model, installation and tests (pile loading tests and direct shear tests) under different water cement ratio of mortar and various moisture content of clay were done. The results reveal that the higher water content of original clay the bigger friction resistance, α value as clay soil is softer and the optimum w/c-ratio (w/c = 0,4) provides more pile capacity. It is understandable that water plays an important role, contributes to the change of surrounding clay properties. The improvement of Su ( % increase) due to compaction of concrete in bored pile, migration of moisture and reaction with surrounding clay leads to take benefit of design and construction of bored pile in clay soil for the sake of efficiency and stability.

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Author Biographies

Muhamad Agung, Universitas Jenderal Achmad Yani

Jurusan Teknik Sipil

Regi Fasya Septrian, Universitas Jenderal Achmad Yani

Jurusan Teknik Sipil

References

Apageo, S.V,et al.(2016) “Ground Improvement vs. Pile Foundations” ISSMGE - ETC 3 International Symposium on Design of Piles in Europe. Leuven, Belgium,

Briaud, J.L, (1987) “Drilled and Grouted Piles: Construction, Integrity, Capacity” Department of Civil Engineering. Texas A&M University

Chang, M.F and Zhu, H (2004), “Construction effect on Load Transfer along Bored Piles”, Journal Geotechnical and Geoenvironmental engineering ASCE

Chuang, J.L and Reese, L.C (1969).” STUDIES OF SHEARING RESISTANCE BETWEEN CEMENT MORTAR AND SOIL “UNIVERSITY OF TEXAS at AUSTIN

Clayton, R. I. and Milititsky, M. (1983) “Installation effects and the performance. “of bored piles in stiff clay” Ground Engineering, Brazil

Das, B.M. (2008). Foundation Engineering. Publisher Co, New York.

Hoque, M.I and Alamgir, M (2014) “STUDY ON THE FIELD PERFORMANCE OF GRANULAR PILE AS A GROUND IMPROVEMENT TECHNIQUE “Journal of Engineering Science 05(1), 2014, 103-114, Bangladesh

Hung, J.L, et al. (2006) “Ground Improvement piles induced shear strength in NC clay “Journal of the Chinese Institute of engineers.

Kinoshita, H, et al. (2010) “Sand Compaction Pile Technology and its Performance in both Sandy and Clayey Grounds “ISSMGE-TC 211 International Symposium on Ground Improvement IS-GI Brussels 31 May & 1 June 2012.

Narong,T, et al. (2000) “CONCRETE FOR WET PROCESS BORED PILES, GEOTECH-YEAR 2000 Developments and Geotechnical Engineering 27-30 November 2000, Bangkok, Thailand

Sulaeman, A, et.al (2015) “The Determination Of Scaling Factor of Clay Properties On One-gravity Small Scale Physical Modeling , International Journal of Integrated Engineering, Vol. 7 No. 1 (2015) p. 12-20

Zhu, Y (2016) “Mechanisms of Property Changes of Soft Clays Around Deep Mixing Column, International Forum on Energy, Environment and Sustainable Development (IFEESD 2016)

Additional Files

Published

2021-07-26