SOIL CONSOLIDATION ANALYSIS AS THE MAIN CAUSE OF LAND SUBSIDENCE IN SEMARANG - INDONESIA

The aim of this research is to know the specific gravity and depth of soil consolidation. The method of this research was carried out for three years, and in the third stage drilling of soil with a machine at 5 points at 30m depth. Furthermore, the property test and soil mechanical properties in the laboratory. This research produced a map of puddles in Semarang City and shows that the land in the northern part of Semarang city has decreased over time because the land has been consolidated due to the burden of residential buildings, the use of groundwater and motor vehicles.