Predictive Modelling of Land Subsidence Due to Groundwater Level Decline in Gedebage District, Bandung, Indonesia

Abstract The Gedebage district in Bandung city has experienced a vast physical development recent years. Previous geodetic studies showed that the area undergoes high-rate land subsidence. subsurface soil of remarkably high compressibility, void ratio, and water content. A thick sequence soft organic clay 20-27 m exists, making prone to subside. As continues develop, it is important predict future rate subsidence area. This paper aims analyze contribution groundwater exploitation rate. combination 1-dimensional Terzaghi consolidation analytical analysis numerical modeling was employed this study. Groundwater level data up 2015 used, hydrostatic condition assumed occur 1986. Results show subsided as much 161 cm since Modeling results are consistent with survey results. It predicted will slow down next 40 years, provided remains stable.