Numerical Analysis of Mechanical Behavior of Soft Soil Settlements With Vacuum Consolidation Method Norma Puspita(a*)(b), Anis Sagaff (b), Wiwik Rahayu (c)
(a) Department of Civil Engineering, Faculty of Engineering, Indo Global Mandiri University,
Jl. Jend. Sudirman No. 629 Palembang
* norma.puspita[at]uigm.ac.id
(b) Engineering Science of Doctoral Program, Faculty of Engineering, Sriwijaya University
(c) Department of Civil Engineering, Faculty of Engineering, Indonesia University
Abstract
According to topography of Palembang City is lied on lowland areas, with very deep soft soils that have high compressibility behavior. It will greatly affect to stability of construction. In the last decades, along science and technology development, many scientists had been developing methods and tools to improve the mechanical behavior of soft soil, be it chemically or mechanically improvement method. One of the mechanically improvement methods is Vacuum Consolidation Method (VCM), which is a development of prefabricated vertical drains (PVD). The aims of this study are to analysis numerically the correlation of characteristics and mechanical behavior of soil to settlements with application of VCM. The analysis of study is based on soil investigation data and field observation data of daily implementation VCM. The result of study is showed that duration and scale settlement are greatly affected by characteristics and mechanical behavior of soil, such as the depth, type, void ratio, saturation degree, plasticity, aside from PVD installation pattern and suction pressure of vacuum.
