Groundwater Vulnerability Analysis On Coal Mining With Drastic Method

MAGDALENA, SYLVIANOPA and DWINAGARA, Barlian and SUYONO, Suyono and NUGERAHA, PANGESTU (2019) Groundwater Vulnerability Analysis On Coal Mining With Drastic Method. Global Journal of Engineering Science and Researches, 6 (5). pp. 452-457. ISSN 2348-8034

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Official URL: https://doi.org/10.5281/zenodo.3229428

Abstract

This research is focused on knowing how vulnerable the ability of groundwater is to be affected by mining activities. Supporting analysis includes mine design using the stripmine method and research on hydrological and hydrogeological characteristics. Field activities inculde observation, measurement, testing of groundwater potential with the slugtest method in the study area. Testing of groundwater potential is carried out based on 6 core drill holes, namely GT-01, GT-02, GT-03, GT-04, GT-05, GT-06. Analysis of this study uses the DRASTIC method as a weighting and valuation method. In the DRASTIC method of groundwater vulnerability influenced by several factors, namely, the depth of the groundwater, rainfall, topography (slope), lithology, soil texture and hydraulic conductivity. The types of aquifers found in the study area were free aquifres with a depth of 3.15-4.7 m, divided south while equifers were depressed with a dapth of 12.1 – 55.5 m in the northern and central parts. The index value varies when the minimum rainfall is 72-146 with a low level vulnerability and when rainfall is high 96-165 the level of vulnerability is low to high, then the effect of mining activities is the cutting off of aquifer layers. Keywords: DRASTIC Index, groundwater, aquifer.

Item Type:	Article
Subjects:	T Technology > TN Mining engineering. Metallurgy
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	DR. Ir. MT BARLIAN DWINAGARA
Date Deposited:	09 Aug 2021 06:46
Last Modified:	09 Aug 2021 06:48
URI:	http://eprints.upnyk.ac.id/id/eprint/26500

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