Evaluation of Bore Pile Foundation for Landslide Management in Tenggarong, Kutai Kartanegara, East Kalimantan, Indonesia
Dimas Wahyu Novianto *
Univercity of 17 Agustus 1945, Samarinda, Indonesia.
Habir
Univercity of 17 Agustus 1945, Samarinda, Indonesia.
*Author to whom correspondence should be addressed.
Abstract
Bore pile foundations are an effective solution to improve structural stability in areas with unstable geotechnical conditions, such as in the landslide-prone Tenggarong District. This study using the Bageman method aims to analyse the bearing capacity of bore pile foundations in supporting vertical loads on retaining wall structures. The ultimate capacity of the pile group design, the calculation of the group ultimate capacity (Qu_group) reached 48,459.393 kN, with a permit capacity of 4,845.939 tonnes. The calculation results show that the bore pile foundation with a depth of 12 metres and a diameter of 300 mm can bear considerable loads, ensuring safety and efficiency in the retaining wall structure. In addition, the use of longitudinal and spiral transverse reinforcement in the piles provides additional strength against lateral forces and structural stability, thus meeting the design needs with long-term stability assurance, which is very important in landslide-prone sites.
Keywords: Bore pile foundation, pile bearing capacity, soil stability, capacity calculation, retaining wall