Journal of the Korean GEO-environmental Society (한국지반환경공학회 논문집)

Korean Geo-Environmental Society (한국지반환경공학회)
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Design and Performance Evaluation of Support Module for Modular Road System

모듈러 도로시스템을 위한 지지모듈 설계 및 성능평가

  • Kim, Donggyou (Korea Institute of Civil Engineering and Building Technology)
  • Received : 2021.11.05
  • Accepted : 2021.11.23
  • Published : 2021.12.01
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Abstract

As the number of using road in Korea increases, maintenance costs and traffic congestion costs also increase. In order to reduce maintenance cost and time of road, existing long - lived modular road system has been proposed. In this study, the design and performance evaluation of the adaptable support module, which is the substructure of the proposed system, was performed. Two adaptable (Cross-Beam type)support modules were designed and fabricated to determine the load and shape. A adaptable support module was constructed and a static load test was carried out to select the type with better performance. As a result of the load test, the maximum value of the measured earth pressure difference is about 158 kPa and the settlement amount is about 0.032 mm in the two types of adaptable support modules. Based on these results, it is concluded that the performance of the adaptable support module of the bottom curved cross-beam type is better.

국내의 공용 중인 도로의 연장의 증가와 함께 유지보수 비용 및 교통혼잡비용도 함께 증가하고 있는 추세이다. 도로의 유지보수 비용 및 소요시간의 단축을 위하여 기존에 지속가능한 장수명 모듈러 도로시스템이 제안되었다. 본 연구에서는 제안된 시스템의 하부구조인 맞춤형 지지모듈의 설계 및 성능평가를 수행하였다. 하중을 결정하고 형태가 다른 2가지의 맞춤형(Cross-Beam 형태) 지지모듈을 설계, 제작하였다. 제작한 맞춤형 지지모듈을 시공하고 성능이 더 우수한 형태의 지지모듈 선정을 위하여 정하중재하 시험을 진행하였다. 하중재하 시험 결과 두가지 형태의 맞춤형 지지모듈에서 측정된 최대 토압은약 158kPa 차이가 났으며, 최대 침하량은 약 0.032mm의 차이가 나타났다. 이러한 결과를 바탕으로 하부곡선형 Cross-Beam 형태의 맞춤형 지지모듈의 성능이 더 우수한 것으로 판단된다.

Keywords

Acknowledgement

본 연구는 한국건설기술연구원의 주요사업인 '맞춤형 지지 모듈러 시스템 개발' 과제의 지원을 받아 수행되었으며, 이에 감사를 드립니다.

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