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신민호(Shin Min-Ho),이성혁(Lee Seong-Hoon),김현기(Kim Hyun-Ki),김정기(Kim Jung-Ki),노순미(Roh Soon Mi) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
Rockfall mitigation methods have been widely constructed along railway lines but aren"t estimated with any economic analysis methods up to now. Therefore, this study applied a benefit-cost analysis to rockfall mitigation method to determine whether it is indeed an economically efficient construction. The Benefits were estimated based on data collected from disaster history, and included three types of benefits that are originated by reduction of train accident, train delay and rockfall removing cost. The costs included both construction cost and the maintenance cost of the selected method. This analysis could clarify the investment effect of rockfall mitigation method that would be built at rockfall prone slope.
박태순,노순미 서울産業大學校 2005 논문집 Vol.54 No.2
This study applied the cost-benefit theory in order to evaluate the financial reasonability of several methods relevant to the rockfall mitigation. The railroad line for the financial analysis is four lines having risks of rockfall, which are Young-dong line, Jung-sun line, Tae-baek line, and Joong-ang line. The significant conditions of study are 20m' section about each line based on the rockfall energy from 50kJ to lOOOkJ. This study has carried out the economical analysis such as Benefit-Cost Ratio(B/C), Net Present Value(NPV)', and Internal Rate of Return (IRR) through above mentioned conditions when various methods of the rockfall prevention including fences, walls, tunnels, and ring nets were constructed. As a result, this result shows what is the most efficient way in the aspects of economical efficiency. 본 연구는 낙석 저감에 관련된 여러 방법에서 경제적 합리성을 평가하기 위해 비용-편익 이론을 적용하였다. 경제성 분석을 위한 철도노선은 영동성, 정선선, 태백선, 중앙선으로 낙석의 위험을 갖고 있는 4개의 노선을 대상으로 하였다. 연구를 위한 중요한 조건은 50KJ에서 1000KJ의 낙석에너지를 갖고 있으며, 각 노선의 20m구간을 적용하였다. 낙석방지책, 낙석방지 옹벽, 피암터널과 링네트공법 등의 다양한 낙석방지공법이 실행될 때, 위에서 언급한 조건을 통해 편익-비용비(B/C), 순현재가치(NPV), 내부할인율(IRR)과 같은 경제성 분석을 수행하였다. 본 연구는 경제적인 효율성 측면에서 어떤 공법이 가장 효율적인 공법인지를 보여준다.