Spatial analysis and evaluation of a coal deposit by coupling AHP & GIS techniques  

作　　者：Nikolaos Paraskevis Christos Roumpos Nikolaos Stathopoulos Aikaterini Adam 

机构地区：[1]Department of Mining Engineering,Public Power Corporation of Greece,Athens 10432,Greece [2]School of Mining and Metallurgical Engineering,National Technical University of Athens,Athens 15780,Greece

出　　处：《International Journal of Mining Science and Technology》2019年第6期943-953,共11页矿业科学技术学报（英文版）

摘　　要：Nowadays,the evaluation of coal deposits becomes crucial,due to many uncontrollable factors,which affect the energy sector.A comparative evaluation of coal deposits is essential for their hierarchical classification regarding their sustainable exploitation,when compared to other coal deposits or competitive fuels,which may be used as alternative solutions for electricity generation.In this paper,a method for spatial analysis and evaluation of a lignite deposit is proposed,by creating four spatial key indicators via GIS analysis,which are then aggregated by applying a weighted linear combination.The analytical hierarchy process is applied to estimate the relative weights of the indicators,in order to perform a weighted cartographic overlay.Through the synthesis of the indicators,an overall,total spatial quality indicator is calculated.The weighted analysis was shown to be more effective compared to the unweighted one,because it can provide more reliable results regarding the exploitation of the examined lignite deposit.The implementation of GIS-based analytical hierarchy process in spatial analysis and evaluation of lignite deposits,in terms of sustainable exploitation,demonstrates that this method can be extensively applied for evaluating the economic potential of mineral deposits.Nowadays, the evaluation of coal deposits becomes crucial, due to many uncontrollable factors, which affect the energy sector. A comparative evaluation of coal deposits is essential for their hierarchical classification regarding their sustainable exploitation, when compared to other coal deposits or competitive fuels, which may be used as alternative solutions for electricity generation. In this paper, a method for spatial analysis and evaluation of a lignite deposit is proposed, by creating four spatial key indicators via GIS analysis, which are then aggregated by applying a weighted linear combination. The analytical hierarchy process is applied to estimate the relative weights of the indicators, in order to perform a weighted cartographic overlay. Through the synthesis of the indicators, an overall, total spatial quality indicator is calculated. The weighted analysis was shown to be more effective compared to the unweighted one, because it can provide more reliable results regarding the exploitation of the examined lignite deposit. The implementation of GIS-based analytical hierarchy process in spatial analysis and evaluation of lignite deposits, in terms of sustainable exploitation, demonstrates that this method can be extensively applied for evaluating the economic potential of mineral deposits.

关 键 词：Lignite/coal DEPOSIT SPATIAL analysis Evaluation Cartographic overlay Analytical hierarchy process GEOGRAPHIC information systems WEIGHTED linear combination(WLC) WEIGHTED SPATIAL quality indicator(WSQI) 

分 类 号：P61[天文地球—矿床学]