In this study, We introduce a case of reconstruction of ASSM tunnel with various leakage paths. The Reconstruction method applied NATM waterproofing system to ASSM because of various leak paths and leakage

Abstract
 1. 서 론
 2. 대상 터널
  2.1 A터널 현황
  2.2 A터널 주변 현황
  2.3 A터널 내부상태
 3. 결 론
 참고문헌

• 이유석(한국시설안전공단 교량터널안전실) | Lee, You Seok 교신저자
• 박창은(한국시설안전공단 교량터널안전실) | Park, Chang Eun
• 오영석(한국시설안전공단 시설물통합정보센터) | Oh, Young Seok
• 황인백(한국시설안전공단 교량터널안전실) | Hwang, In Baek