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철도역사 및 선로 하부를 통과하는 대단면 3-Arch 터널의 설계
장석부(Chang Seok-Bue),문상조(Moon Sang-Jo),권승(Kwon Seung),김준구(Kim Jun-Goo),권기대(Kwon Gie-Dae) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper presents the design case of the 3-arch tunnel under existing railways and railway station building. The original construction method was the underpinning method supported by pipe-roof, but it was changed to the minded tunnelling method because of the complex construction condition and the safety problem. This 3-arch tunnel has a width of 28 meters and a height of 10 meters. Overburden is only 23m and the ground consists of the weathered soil and rock. Because the allowable settlements for the station building and railways are limited strictly, various measurements for the tunnel stability and the settlement minimization was considered.