델파이 기법과 AHP를 이용한 중력식 사방댐 준설 평가지표 및 조사야장 개발

Title
델파이 기법과 AHP를 이용한 중력식 사방댐 준설 평가지표 및 조사야장 개발
Other Titles
Development of Indicators for Dredging Evaluation and Form on Erosion Control Dam Using the Delphi Technique and AHP Analysis
Author(s)
이헌호서준표[서준표]이창우[이창우]우충식[우충식]
Keywords
Erosion control dam; Dredging; Delphi technique; AHP analysis; Evaluation indicators.
Issue Date
201412
Publisher
한국환경복원기술학회
Citation
한국환경복원기술학회지, v.17, no.6, pp.1 - 15
Abstract
A dredging on erosion control dam has been enforced without evaluation the factors that affect the dredging. In addition, there is the negative effect much more than positive effect by dredging on erosion control dam. Therefore, this study was carried out to develop evaluation indicators and to suggest fieldbook in order to determine whether sand deposits at erosion control dam should be dredged up or not. The most important six evaluation indicators that can decide to dredge up at erosion control dam were obtained from three round delphi technique and were selected in the following order: the current sand deposit ratio(0.339), existence of cultivated land and house downstream(0.276), the slope of streambed(0.162), the amount of movable soil and gravel(0.118), the history of any disasters(0.063), the basin area(0.043). The weighted score for each evaluation indicator were acquired from AHP analysis with respect to the degree of importance and then the modified weighted score for actual measurements were classified as three categories: large(2.53), medium(1.60) and small(1.01). Based on delphi technique, erosion control dam dredging evaluation fieldbook introduced the four evaluation indicators out of the total six evaluation indicators and two low effected evaluation indicators were excluded. This results showed that the values for reliability analysis and consistency ratio were acceptable.
URI
http://hdl.handle.net/YU.REPOSITORY/30128http://dx.doi.org/10.13087/kosert.2014.17.6.1
ISSN
1229-3032
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자연자원대학 > 산림자원및조경학과 > Articles
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