#TITLE_ALTERNATIVE#

• Main Author: MAIYUDI (NIM 15108077); Pembimbing: Prof. Dr. Ir. Hasanuddin Z. Abidin, M.Sc. dan Irwan Gumilar, RIKO
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/14437
• Institution: Institut Teknologi Bandung

Semarang is one area of the coastal city that is generally formed by alluvial deposits. The characteristics of the alluvial deposits is the consolidation process still occur on the soil.. The consolidation process has led to land subsidence in the area. Not only consolidation process, land subsidence in semarang also caused by taking the groundwater and the land cover. Respond to this phenomenon, we conducted measurements of land sucsidence in Semarang. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Observation land subsidence in Semarang using GPS survey methods. Observational data obtained from the field measurements in 2008,2009,2010 and 2011. The data is processed using software Bernesse 5.0 and it gives the land subsidence data during three periods, 2008-2009, 2009-2010 and 2010-2011.Then the processed data will be correalatedwith the decreasing of the groundwater surface (MAT), geology and land cover map of Semarang. The results of data processing showed a land subsidence occur at some points in GPS which is spread over an area in Seamarang with range from 0.7 cm up to 11.2 cm per year and the relationship between the land subsidence with the groundwater surface (MAT) reduction in Semarang, geological condition and land cover of Semarang. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> The land subsidence phenomenon that occured in Semarang requires further monitoring and assessment for the characteristic and factors which is contributing in the land subsidience phenomenon. Research on land subsidience monitoring in Semarang is expected to be useful and helpful in making arrangements of groundwater utilization, flood control, environmental conservation, as well as decision making in infrastructure development.