Modified indirect evaluation method for deterioration assessment of drinking water pipes

Hyuk Jae Kwon

doi:10.3741/JKWRA.2023.56.11.697

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2023 Vol.56, Issue 11 Next Page

Research Article

Modified indirect evaluation method for deterioration assessment of drinking water pipes 상수도 노후도 평가를 위한 수정 간접평가법

30 November 2023. pp. 697-703

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Abstract

In this study, a modified indirect evaluation method was developed to predict the deterioration level of water pipes. The accuracy of the modified method was verified by comparing it with the direct method. The weights of index were adjusted by reducing the weight of water quality corrosion, soil corrosion, lay depth and road type according to the importance of the existing evaluation factors and adding the weight of pipe thickness. In the results, the weight of pipe thickness was determined to be 0.1530. Comparing with the direct evaluation method, the accuracy of the modified indirect evaluation method increased by 31.03% compared to the indirect evaluation method. The modified indirect evaluation method will be able to select relatively old pipes more accurately and efficiently than the existing indirect evaluation method when prioritizing the improvement of old water pipes.

Keywords

Modified indirect evaluation method

Indirect evaluation method

Direct evaluation method

Pipe thickness

Analytic hierachy process

본 연구에서는 부식에 의한 관두께 감소를 예측하여 수정 간접평가법을 개발하였다. 수정 평가법과 직접평가법과 비교를 통해 노후상수관을 선정함에 있어 정확도를 확인하였다. 가중치 조정은 기존 평가항목의 중요도에 따라 수질부식성, 토양부식성, 매설깊이, 도로형태의 가중치를 낮추고 관두께의 가중치를 추가하는 방법으로 가중치를 산정하였고 그 결과 관두께의 가중치는 0.1530으로 결정하였다. 직접평가법과 비교한 결과 기존 간접평가법에 비해 수정 간접평가법의 정확도가 31.03% 상승한 것으로 분석되었다. 수정 간접평가법을 통해 노후 상수관의 개량 우선순위 선정시 기존 간접평가법보다 정확하고 효율적으로 노후관을 선정할 수 있을 것이다.

키워드

수정 간접평가법

간접평가법

직접평가법

관두께

계층화분석법

References

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Information

Publisher :KOREA WATER RESOURECES ASSOCIATION
Publisher(Ko) :한국수자원학회
Journal Title :Journal of Korea Water Resources Association
Journal Title(Ko) :한국수자원학회 논문집
Volume : 56
No :11
Pages :697-703
Received Date : 2023-09-15
Revised Date : 2023-10-13
Accepted Date : 2023-10-17
DOI :https://doi.org/10.3741/JKWRA.2023.56.11.697

Journal of Korea Water Resources Association ISSN:2799-8746(Print) 2799-8754(Online) 한국수자원학회 논문집

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