한국도로학회논문집 (International Journal of Highway Engineering)

  • 제16권2호
  • /
  • Pages.53-59
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  • 2014
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  • 1738-7159(pISSN)
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  • 2287-3678(eISSN)
한국도로학회 (Korean Society of Road Engineers)
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오르막 경사구간에서 중차량 속도감소를 고려한 아스팔트 포장구조체 내부거동 분석

Estimation of Asphalt Pavement Internal Behavior under Decreasing Truck Speed on Uphill Lanes

  • 서주원 (한국도로공사 도로교통연구원)
  • 투고 : 2014.02.17
  • 심사 : 2014.03.03
  • 발행 : 2014.04.15
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초록

PURPOSES : This study estimated an asphalt pavement internal behavior under uphill lanes considering reducing speed of heavy truck on uphill slope. METHODS : Truck performance curve which has been adapted to "Korea Highway Capacity Manual" was analyzed. And asphalt pavement internal behaviors were estimated with Multi-layered elastic analysis using KPRP(Korea Pavement Research Program) dynamic modulus prediction equations. RESULTS : As a result, it is shown that when the standard truck drives 2.0 km at a speed of 80 km/h in 8% climbing slope, it's speed reduced to 25.4 km/h, at same time frequency in asphalt layer decrease to 67.2% and it's dynamic modulus degrades to 30.9%. Based on these results, internal behavior as decreasing vehicle speed on uphill lanes were estimated. CONCLUSIONS : From the results of Multi-layered elastic analysis, internal behavior showed that when the standard truck drives 2.0 km at a speed of 80 km/h in 8% slope on uphill lanes, vertical strain was increased to 44.4% at the bottom of surface course, and lateral tensile strain was increased to 20.5% at the bottom of base course.

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참고문헌

  1. Amara Loulizi, 2002". Measurement of Vertical Compressive Stress Pulse in Flexible Pavement", Transportation Research Board, TRR 1816, TRB, Washington, D.C., pp.125-136.
  2. Huang, Y. H., 1993. Pavement Analysis and Design, Prentice-Hall Inc.
  3. Joowon Seo, Youngho Kim, Jaeyeon Cho and Sangseom Jeong, 2013. "Estimation of in situ dynamic modulus by using MEPDG dynamic modulus and FWD data at different temperatures", International Journal of Pavement Engineering, vol. 14, no. 4, pp. 343-353. https://doi.org/10.1080/10298436.2012.664274
  4. Korea Expressway Corporation, 2007. Development of Analysis System for Asphalt Pavement Structures under Various Vehicle Speeds, Korea Expressway Corporation.
  5. Ministry of Construction and Transportation, 2006. Highway capacity Manual, Ministry of Construction and Transportation.
  6. Ministry of Land, Transport and Maritime Affairs, 2011. Quantification of the design input variables, KPRP-D-11, Ministry of Land, Transport and Maritime Affairs.
  7. (국토해양부, 2011. "설계입력변수 정량화", 한국형 포장설계법 개발과 포장성능 개선방안 연구 3단계 3차년도 최종보고서.)