논문 상세보기
pp.27-37
PURPOSES : The objective of this study is to develop a pavement rehabilitation decision tree considering current pavement condition by evaluating severity and distress types such as roughness, cracking and rutting.
METHODS: To improve the proposed overall rehabilitation decision tree, current decision tree from Korea and decision trees from other countries were summarized and investigated. The problem when applying the current rehabilitation method obtained from the decision tree applied in Seoul was further analyzed. It was found that the current decision trees do not consider different distress characteristics such as crack type, road types and functions. Because of this, different distress values for IRI, crack rate and plastic deformation was added to the proposed decision tree to properly recommend appropriate pavement rehabilitation. Utilizing the 2017 Seoul pavement management system data and considering all factors as discussed, the proposed overall decision tree was revised and improved. RESULTS: In this study, the type of crack was included to the decision tree. Meanwhile current design thickness and special asphalt mixture were studied and improved to be applied on different pavement condition. In addition, the improved decision tree was incorporated with the Seoul asphalt overlay design program. In the case of Seoul's rehabilitation budget, rehabilitation budget can be optimized if a 25mm milling and overlay thickness is used.
CONCLUSIONS: A practical and theoretical evaluation tool in pavement rehabilitation design was presented and proposed for Seoul City.
1. 서론
1.1. 연구의 배경
1.2. 연구의 내용 및 목적
2. 문헌고찰
2.1. 국내
2.2. 국외
3. 도로포장 파손 특성 및 유지관리 현황
3.1. 도로종류에 따른 포장 파손 특성
3.2. 도로포장 유지보수 공법 적용 현황
3.3. 균열 유형별 분포 특성
3.4. 서울형 포장설계법을 통한 단면설계 방법 및문제점
4. 보수공법 체계
4.1. 서울형 Decision Tree 구성 체계
4.2. 노면파손 유형에 따른 관리 기준 수립
4.2.1. 평탄성 불량구간 정비 기준 수립
4.2.2. 선형균열을 면적 균열률로 환산하는 기준 분석
4.2.3. 균열률 및 소성변형량 기준 수립
4.3. 도로포장 정비예산 수립
5. 결론
감사의 글
REFERENCES
