The objective of this study is to develop the innovative application methodology of Geofoam for sustainable design of eco-bridges under deep soil cover. Traditionally, the soft maerial zone has been located on the top or above the buried conduit to reduce the earth pressures, which is called imperfect trench installation (ITI). There, however have been no previous studies for the application of ITI on buried arch structures. This study investigated the structural effects of Geofoam surrouding buried arch bridges, which was named as embedded trench installation (ETI). Various shapes and locations of Geofoam have been investigated for both ETI and ITI. The findings from this study showed that ETI could effectively increase the stability and sustainability of deeply buried eco-bridges.

Abstract
 1. 서 론
 2. 연구배경
 3. 본 론
  3.1 연구방법
  3.2 연구결과
 4. 결 론
 REFERENCES

• 정연욱(서울대학교 조경지역시스템공학부 학사과정) | Jeong Yeon-Wook (Undergraduate, Department of Landscape Architecture and Rural System Engineering, Seoul National University)
• 이정준(서울대학교 조경지역시스템공학부 석사과정) | Yi Zheong-Zun (Graduate, Department of Landscape Architecture and Rural System Engineering, Seoul National University)
• 조성준(서울대학교 조경지역시스템공학부 연구원) | Cho Sung-Jun (Research Assistant, Department of Landscape Architecture and Rural System Engineering, Seoul National University)
• 임환기(상명대학교 건설시스템공학과 석사과정) | Im Hwan-Gi (Graduate, Department of Civil Engineering, Sangmyung University)
• 박종섭(상명대학교 건설시스템공학과 교수) | Park Jong-Sup (Professor, Department of Civil Engineering, Sangmyung University)
• 강준석(서울대학교 조경지역시스템공학부 조교수) | Kang Jun-Suk (Professor, Department of Landscape Architecture and Rural System Engineering, Seoul National University) Corresponding author