Influence the condition land subsidence and groundwater impact of Jakarta coastal area

4th International Seminar on Sustainable Urban Development

地球科学;经济学

Rahman, S.^1,2 ; Sumotarto, U.^1 ; Pramudito, H.^1

Mining Department, Faculty of Earth Technology and Energy, Universitas Trisakti, Jakarta, Indonesia^1

Universitas Padjadjaran, Bandung, Indonesia^2

关键词: Coastal area;    Continuous measurements;    costal area;    Deep water wells;    Groundwater extraction;    Human activities;    Land subsidence;    Shallow waters;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/106/1/012006/pdf
DOI  :  10.1088/1755-1315/106/1/012006

来源: IOP

【 摘 要 】

Jakarta has been experiencing land subsidence for ten years due toerecting weight building and intensive extraction of groundwater for society drink water through ground water wells. Many groundwater extraction for drinkingwater has caused intensive scouring of land rock and further triggering land subsidence developed widely in coastal area of Jakarta. Measurement of the land subsidence has been performed by various experts and institutes. Between 1974 to 2010 subsidence has happened between 3 to 4.1 meters especially in Jakarta coastal area. Two major causes of the subsidence are identified. The first major cause is a result of erecting weight building such as hotels, appartments, and various human activities buildings. The second major cause is extracting ground water from aquifers bellow Jakarta land due to water deep wells down to the aquifer and traditional shallow water well of shallow or subsurface uncovered ground water. Weighter building and higher debit of water flow from deep water wells has fastened and deepened the land subsidence. Continuous measurement of land subsidence by means of geodetic as well as geophysical earth behaviour measurements need to be performed to monitor the rate, location as well as mapping of the land subsidence.