Acceleration time analysis of consolidation rate using prefabricated vertical drain (PVD) in underpass project completion

Hutabarat, Lolom Evalita and Siahaan, Hicca Feby Putri and Mulyani, Agnes Sri (2023) Acceleration time analysis of consolidation rate using prefabricated vertical drain (PVD) in underpass project completion. AIP Conerence Proceedings, 2689 (1). 040021-1-040021-7.

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Abstract

Abstract. Completion of projects on time becomes a top priority while taking into account the required technical factors. One of the obstacles in the Bulak Kapal underpass project Bekasi is the soil condition at the project site, which has high compressibility properties such as soft clay. One method to overcome large settlements and accelerate settlement times is to use Pre-Fabricated Vertical Drain (PVD). This study aims to compare the decrease in soil consolidation without PVD and by using PVD and knowing excess pore pressure for each variation. Variations used in this study are landfill time, which is 4weeksand8weeksofthe gradual embankment, and the distance of PVD is 1.2 m, 1.6 m, and 2 m. These variations are modeled in Plaxis to determine the decrease in consolidation, the value of pore pressure, and the acceleration time of consolidation. From the modeling results on Plaxis, it can be seen that the installation distance of PVD significantly influences the time required for the consolidation process. Consolidation settlement using PVD can accelerate the settlement time up to 3.04 times faster than settlement without PVD.

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