Mini Pile Foundation Construction Design on Soft Soil Due to Box Traffic Loads based on Standard Penetration Test

Liliwarti, Dwina Archenita, Sandra Faurina

2021

Abstract

Box traffic is an underpass structure in the form of a tunnel under the ground that functions as a transverse road under other roads that serves as a liaison between separate areas due to the construction of toll roads. The construction of Padang – Sicincin Toll Road has separated several surrounding areas so that public access is limited. To solving this problem, a traffic box is built at STA 2+175. Based on the Standard Penetration Test (SPT) data, the location has deep soft soil, so that it cannot support the loads. This paper discusses the used of mini pile foundations to increase the bearing capacity of the soil. The foundation was used with a size of 0.25 m x 0.25 m, the distance between the piles (s) 1m, with variations in the penetration depth of 10m, 12m, and 14m. Bearing capacity analysis was carried out based on SPT data. The analysis results show that the sub-grade settlement without using a mini pile foundation is 0.34 m – 0.35 m BH-01 and 0.59 m – 0.62 m on BH-02, where the settlement exceeds the allowable settlement limit. While, by using a mini pile foundation with a depth of 10 m, the settlement is 0.02 – 0.05 cm. This settlement is smaller than the allowable settlement for pile foundation. The bearing capacity of the mini pile group foundation increases with increasing pile penetration depth, but it does not apply to single piles.

Paper Citation

in Harvard Style

Liliwarti., Archenita D. and Faurina S. (2021). Mini Pile Foundation Construction Design on Soft Soil Due to Box Traffic Loads based on Standard Penetration Test. In Proceedings of the 4th International Conference on Applied Science and Technology on Engineering Science - Volume 1: iCAST-ES, ISBN 978-989-758-615-6, pages 358-364. DOI: 10.5220/0010945800003260

in Bibtex Style

@conference{icast-es21,
author={Liliwarti and Dwina Archenita and Sandra Faurina},
title={Mini Pile Foundation Construction Design on Soft Soil Due to Box Traffic Loads based on Standard Penetration Test},
booktitle={Proceedings of the 4th International Conference on Applied Science and Technology on Engineering Science - Volume 1: iCAST-ES,},
year={2021},
pages={358-364},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010945800003260},
isbn={978-989-758-615-6},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 4th International Conference on Applied Science and Technology on Engineering Science - Volume 1: iCAST-ES,
TI - Mini Pile Foundation Construction Design on Soft Soil Due to Box Traffic Loads based on Standard Penetration Test
SN - 978-989-758-615-6
AU - Liliwarti.
AU - Archenita D.
AU - Faurina S.
PY - 2021
SP - 358
EP - 364
DO - 10.5220/0010945800003260