Browse > Article

Flexural Behavior of Reinforced Ribs of Shotcrete for Various Configurations of Reinforcements  

Park, Yeon-Jun (수원대학교 공과대학 토목공학과)
Lee, Jung-Ki (수원대학교 공과대학 토목공학과, 국토해양부 4대강살릭 추진본부 공사1팀)
Noh, Bong-Kun (수원대학교 토목공학과, 도화종합기술공사(주))
You, Kwang-Ho (수원대학교 공과대학 토목공학과)
Lee, Sang-Don (한국도로공사 도로교통기술원 삼척속초건설사업단 기술지원팀)
Publication Information
Tunnel and Underground Space / v.20, no.3, 2010 , pp. 169-182 More about this Journal
Abstract
H-beam and lattice-girder are the two most commonly used steel supports in domestic tunnels. Reinforced Ribs of Shotcrete(R.R.S.), which is frequently used in Scandinavian countries, is yet to be employed in Korea despite its advantages over H-beam or lattice girder in terms of economy and constructional efficiency. In this study, laboratory tests were conducted to determine the most suitable design of R.R.S in domestic tunnels. Various configuration of steel reinforcements including double layer of steel rebars were tested and compared. Reinforcement with H-beam and lattice girder were also analyzed. Results of this study can be of great use in selecting and designing of tunnel supports when the tunnel is excavated by NATM or Norwegian Method of Tunnelling(NMT).
Keywords
Reinforced Ribs of Shotcrete(R.R.S.); Flexural toughness test; Configuration of reinforcement;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 ASTM, 1986, ASTM C 1018, Standard Test Method for Flexural Toughness and First-Crack Strength of Fiber- Reinforced Concrete (Using Beam with Third Point- Loading), Annual Book of ASTM Standards, 04.02.
2 JSCE, 1984, Steel Fiber Reinforced Concrete Research Subcommittee, Recommendation for Design and Construction of Steel Fiber Reinforced Concrete, Concrete Library of JSCE, (3).
3 ACI Committee 544, 1997, Fiber reinforced concrete, American Concrete Institute, ACI 544.1R-96.
4 한국산업규격(KSF2408), 2005, 콘크리트의 휨강도 시험방법.
5 이상돈, 박연준, 임두철, 손정훈, 유광호, 김수만, 2008, 강재로 보강된 숏크리트 거동의 수치해석적 연구, 터널과 지하공간, 제18권 제3호, pp. 226-238.   과학기술학회마을
6 한국산업규격(KSF2566), 2005, 강섬유보강 콘크리트의 휨인성 시험방법.
7 한국콘크리트학회, 2007, 2007년도 개정 콘크리트구조 설계기준 해설.
8 한국도로공사, 2003a, 터널숏크리트 품질개선.
9 한국도로공사, 2003b, 표준시방서.