PURPOSES : This study mechanically analyzed the performance of road substructures with focus on infiltration trenches of pavement substructures. METHODS: Water contents and response times for precipitation of pavement substructures were investigated via sensors buried near the infiltration trench to measure water contents. RESULTS : The results of the water contents of pavement systems constructed with an infiltration trench yield levels that were slightly increased by approximately 2% compared to those measured from general pavement systems. This water content difference of 2% resulted in a decrease in service life of less than two years. CONCLUSIONS: Service life reduction due to an infiltration trench is minimal, particularly when the trench is installed with proper caution.

• 공석준(토지주택연구원 연구원) | Kong, Seokjun
• 정종석(토지주택연구원 수석연구원) | Jung, Jongsuk
• 연규민(명지대학교 교통공학과) | Yeon, Gyumin 교신저자
• 김인태(명지대학교 교통공학과 교수) | Kim, In Tai