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A Value Analysis of Ecological Restoration Construction Considering Life Cycle Cost and Performance - Focusing on the Wet Media for Slope Revegetation -

생애주기비용과 성능을 고려한 생태복원 공법 가치분석 - 습식 비탈면 기반재를 사례로 -

  • Li, Lan (Dept. of Environmental Resource, The Graduate School, Sang Myung University) ;
  • Kim, Sung Hee (Dept. of Environmental Landscape Architecture, The Graduate School, Sang Myung University) ;
  • Kim, Bo Heui (Dept. of Environmental Landscape Architecture, The Graduate School, Sang Myung University) ;
  • Lim, Su Hyun (Dept. of Environmental Landscape Architecture, The Graduate School, Sang Myung University) ;
  • Kim, Sung Il (Dept. of Environmental Landscape Architecture, The Graduate School, Sang Myung University) ;
  • Koo, Bon Hak (Dept. of Environmental Landscape Architecture, Sang Myung University)
  • 이란 (상명대학교 대학원 환경자원학과) ;
  • 김성희 (상명대학교 대학원 환경조경학과) ;
  • 김보희 (상명대학교 대학원 환경조경학과) ;
  • 임수현 (상명대학교 대학원 환경조경학과) ;
  • 김성일 (상명대학교 대학원 환경조경학과) ;
  • 구본학 (상명대학교 환경조경학과)
  • Received : 2014.09.16
  • Accepted : 2014.10.20
  • Published : 2014.10.31

Abstract

In order to save costs and enhance quality in construction without damaging the environment, the VE/LCC analysis method is increasingly used. This study was carried out to conduct a value analysis for the ecological restoration of a slope considering life cycle cost and performance. The construction conditions were classified into three types(A, B, C) according to the condition of each base. Three construction methods for slope ecological restoration were selected by each condition. Eventually, a value analysis was conducted for total nine conditions by analyzing the life cycle cost and performance. The gradient of slope and base of Condition 1 were below 1:1.2 and general soil, while condition 2 and 3 were below 1:1.0(reaping rock) and below 1:0.7(soft rock, blasted rock), respectively. A value analysis was conducted based on the value estimated via life cycle cost and performance analysis. The result showed that the B construction method had the highest value in Condition 1 as it showed 108.4, while A and C showed 90.3 and 45.8, respectively. When it comes to Condition 2, Construction Method A indicated the highest value as it showed 89.1(B: 47.5, C: 47.0). In Condition 3, Construction Method A(89.1) was the highest, while B and C showed 55.4 and 40.2, respectively. Based on the result of this study, in order to make a reasonable decision that can enhance quality and reduce costs in slope ecological restoration, the slope ecological restoration method must be reviewed in consideration of life cycle cost and performance.

환경을 훼손하지 않는 경제 성장을 위하여 건설부문의 비용 절감 및 품질 향상의 요구가 커지면서 VE/LCC 분석기법의 활용이 증가되는 추세이다. 본 연구는 생애주기비용과 성능 분석을 고려한 비탈면 생태복원 공법의 가치 분석을 목적으로 수행되었으며 비탈면 생태복원 시공조건을 경사도와 기반조건으로 3가지 조건을 나누고 각 조건별로 비탈면 생태복원 공법 3가지를 선정하여 총 9가지 조건별로 생애주기비용 분석과 성능 분석을 통하여 가치 분석을 실시하였다. 비탈면의 경사도와 기반조건에 따라 조건 1은 경사도 1:1.2 이하, 일반토사이고, 조건 2는 경사도 1:1.0 이하, 리핑암이다. 조건 3은 경사도 1:0.7 이하, 연암 및 발파암이다. 생애주기비용과 성능 분석 결과를 바탕으로 가치 분석을 한 결과, 조건1에서 B공법 108.4점, A공법 90.3점, C공법 45.8점 순으로 나타났으며, 조건 2에서는 A공법 89.1점, B공법 47.5점, C공법 47.0점 순으로 나타났고, 조건 3에서는 A공법 89.1점, B공법 55.4점, C공법 40.2점 순으로 나타나, 조건 1에서는 B공법이 높았으나, 조건 2, 3에서는 A공법의 점수가 높았다. 본 연구결과를 토대로 생애주기비용과 성능 분석을 고려하여 비탈면 생태복원 사업의 원가절감 및 품질 향상을 도모할 수 있는 합리적인 의사결정에 사용될 수 있을 것이다.

Keywords

References

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