재생혼합토(Tire Shred-Sandy Soil Mixture)로 조성된 도로성토구조물의 장기성능

Long-term Performance of Highway Embankment Using Tire Shred-Sandy Soil Mixture

  • 고태훈 (한국철도기술연구원 신소재틸팅열차시스템연구단) ;
  • 황선근 (한국철도기술연구원 차륜궤도연구실) ;
  • 윤성민 ;
  • 박희문 (한국건설기술연구원 도로연구실) ;
  • 이성진 (한국철도기술연구원 철도구조연구실)
  • 투고 : 2009.03.05
  • 심사 : 2009.05.08
  • 발행 : 2009.08.01

초록

본 논문에서는 폐타이어 활용 재생혼합토(Tire Shred-Sandy Soil Mixture)로 조성된 도로성토구조물의 장기성능을 평가하고자 현장계측 및 현장시험을 수행하였다. 최대 크기 76mm의 폐타이어와 사질토를 50 : 50의 체적비로 혼합한 재생혼합토 성토구조물은 도로개통 후 침하, 변형, 온도측면에서 장기적으로 안정된 모습을 보였으며, 특히 FWD 시험결과, 기존 성토재료로 조성된 성토구간의 지지성능과 동등한 수준으로 설계수명을 만족하였다.

In this paper, the long-term performance of highway embankment using tire shred-sandy soil mixture as a lightweight fill material was evaluated through the field monitoring and field test programs. A tire shred-sandy soil embankment was constructed to support a four-lane highway in Indiana, which was built with a 50 : 50 volumetric ratio of tire shreds (maximum particle dimension of 76 mm) and sandy soil (SP, USCS). After opening of the road for traffic, no noticeable differential settlement and lateral deformation were observed, and no adverse environmental impact on temperature was detected as a result of the construction of the tire shred-sandy soil embankment. Moreover, FWD test results showed that tire shred-sandy soil mixture provides bearing capacity comparable to that of conventional fill and meets the criterion for a design life of 20 years.

키워드

과제정보

연구 과제 주관 기관 : 건설교통부

참고문헌

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