Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2004.03b
- /
- Pages.952-957
- /
- 2004
An experimental study on the reduction method of earth pressure acting on the cut-and-cover tunnel lining
개착식 터널의 라이닝에 작용하는 토압경감대책에 관한 실험적 연구
- Kim, Sang-Yoon (Dept. of Civil Engineering, Pusan National Univ.) ;
-
Im, Jong-Chul
(Dept. of Civil Engineering, Pusan National Univ.)
;
- Park, Lee-Keun (Research Institute of Industrial Technology, Pusan National Univ.) ;
- Bautista, Ferdinand E. (Dept. of Civil Engineering, Pusan National Univ.)
- 김상윤 (부산대학교 토목공학과) ;
-
임종철
(부산대학교 토목공학과)
;
- 박이근 (부산대학교 생산기술연구소 전임연구원) ;
- 페르디난드 이 바우티스타 (부산대학교 토목공학화)
- Published : 2004.03.25
Abstract
Cut and Cover Method is generally used in shallow tunnels and tunnel entrances with thin soil cover. In this type of cons0truction, backfilling is considered to be the most important process. In this process even though the backfill material is thoroughly compacted, compaction and self-weight due to vehicular vibration and pressure exerted by the soil cause the backfill material to undergo self-compression which leads to settlement. The settlement of the backfill material subjects the tunnel lining under excessive earth pressure which cause cracking and deformation. In the model test performed installation of geotextile on the sides and top of the tunnel was able to reduce the earth pressure acting on the tunnel lining.