한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2010년도 춘계 학술발표회
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- Pages.571-576
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- 2010
한계변형률 개념을 활용한 터널안전성 평가
Tunnel Safety Assessment by using the Concept of the Critical Strain in the Ground
- Park, Si-Hyun (Inspection Div. KISTEC) ;
- Park, Sung-Kun (Inspection Div. KISTEC)
- 발행 : 2010.03.25
초록
In this study, an application method of critical strains concept for tunnels' safety by using the values of measured displacements which are obtained in the field is discussed. The aim is to: (1) study on the engineering meanings of critical strains concept by reviewing the previous researches and application examples with measured displacement values; (2) study on the engineering reasonability of critical strains concept with the view point of a tunnel engineering and a geotechnical engineering; (3) study on the features of ground deformation due to tunneling and reciprocal relation between total displacement and measured displacement; (4) evaluate a tunnel safety by using domestic measurements collected in the field; and (5) re-evaluate the control criteria which were previously used in the field, with the view point of critical strains concept. Consequently, it was confirmed that critical strains in the ground has a reasonability and a possibility of unified or common concept with the view point of a tunnel engineering.