GIS-based Spatial Analysis for the Prediction of Flooded Area in an Underground Limestone Mine

Seung-Hwan  Park; Jangwon  Suh; Gyoungman  Kim; Daehoon  Kim; Dong-Hui  Kim; Eun-Su  Kim; Hwanjo  Baek

doi:10.12972/ksmer.2016.53.6.572

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2016 Vol.53, Issue 6 Preview Page Next Page

Research Paper

GIS-based Spatial Analysis for the Prediction of Flooded Area in an Underground Limestone Mine 석회석 광산의 갱내 침수구역 예측을 위한 GIS 공간분석

31 December 2016. pp. 572-582

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Abstract

This study is to predict the possible flooding area in an underground limestone mine, using the spatial analysis based on the Geographic Information Systems (GIS). Five key factors were selected for the spatial analysis; values of both rock mass rating (RMR), Q-system, distance from a fault, drift depth, and the surface runoff accumulation. The Frequency Ratio (FR) model was implemented to analyze statistical correlation between each factor and flooding inventory data. Area Under Curve (AUC) technique revealed that the predicted flooding susceptibility map matched well with the previously recorded flooding areas (prediction accuracy of 91.6%). The proposed approach can be effectively used to determine the local-scale flooding area in the underground limestone mine.

Keywords

GIS

Limestone mine

Underground inundation

Frequency ratio model

Spatial analysis

본 연구에서는 갱내채굴을 수행하는 석회석 지하광산의 공동 형성으로 인한 붕괴 피해를 예방하기 위해 GIS 공간분석 기법을 이용해 침수 발생 위험 구역을 예측하고 검증하였다. 이를 위해 수치지형도와 수치갱내도 분석 및 현장조사 등을 통해 갱내 침수 발생 영향인자로 판단되는 5개 인자(RMR, Q-system, 단층으로부터의 거리, 갱심도, 지표강우누적흐름양)를 산정하고 통계 기법인 빈도비 모델을 이용하여 침수발생 위험지도를 작성하였다. 또한 Area Under Curve (AUC) 방법과 추가적인 현장조사를 통해 침수발생 위험지도의 예측정확도를 검증하였다. AUC 방법 적용 결과, 침수발생 위험지도는 약 91.6%의 정확도를 보였으며 지역스케일 수준의 침수구역 예측이 가능한 것을 확인할 수 있었고, 현장조사 결과, 침수발생 위험성이 가장 높은 구간에서 실제 침수가 대부분 발생한 것을 확인할 수 있었다. 따라서 본 연구에서 제시한 GIS 기반 침수발생 예측 평가 기술은 국내의 갱내채굴을 수행하는 석회석 광산들에 대한 안정성 검토를 위한 기초 자료로서 활용될 수 있을 것으로 기대된다.

키워드

GIS

석회석광산

갱내침수

빈도비 모델

공간분석

References

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Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 53
No :6
Pages :572-582
Revised Date : 2016-12-16
Accepted Date : 2016-12-22
DOI :https://doi.org/10.12972/ksmer.2016.53.6.572

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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