Perbandingan Pengaruh Variasi Panjang Mini Pile terhadap Penurunan dan Daya Dukung Timbunan di Atas Tanah Lanau di Kota Merauke
Abstract
As a crucial element of land transportation infrastructure, roads facilitate the movement of people and goods while ensuring safety, comfort, and economic efficiency. This study examines embankments constructed on silty soil under three conditions: without mini-piles, with 2-meter mini-piles, and with 4-meter mini-piles. The mini-piles used measured 25 × 25 cm² and were spaced 1 meter apart. The research aims to analyze soil settlement and bearing capacity for a road section in the South Papua Province New Autonomous Region (DOB). Topographic surveys and geotechnical investigations were conducted to determine road dimensions and soil characteristics. Subsequently, numerical analysis was performed using the finite element method. The results indicate that reinforcement using 4-meter mini-piles yielded the least settlement and the highest bearing capacity compared to the other models. Under traffic loading of 30 kPa and an external road body load of 20 kPa, the settlement was 12.45 mm and the bearing capacity was 20 kPa.
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