Existing grade crossings between railway and roadway area gradually changed to grade separation systems by the law. In the case of new roadway construction which crosses railways, it shall be grade separation system in principle. With the railway underground crossing method, many practices have been...
Existing grade crossings between railway and roadway area gradually changed to grade separation systems by the law. In the case of new roadway construction which crosses railways, it shall be grade separation system in principle. With the railway underground crossing method, many practices have been developed which can minimize rail displacements and avoid rail release. With these methods, the effects to the train can be reduced. The underground crossing methods can be identified as open-cut methods and non open-cut methods. The open-cut methods include temporary support methods and special rail construction methods. Also the non open-cut methods includes pipe roof methods, front jacking methods, messer shield methods, NTR methods and JES methods. Among these, the most suitable method is applied considering safety, economy, class of each rail system (train passing frequency and velocity), etc. In the non open-cut methods, the cost and duration shall be increased to keep existing rail system during construction. In the open-cut methods which use plate girders, the rail speed shall be restricted due to the displacement and vibration of the girder. In this study new grade separation methods were developed. With this method, the safety during construction can be increased. This method refines temporary support methods, but pc slab girder with huge stiffness is applied instead of plate girders. With this method, the rail displacement can be reduced and higher safety can be obtained during construction. Also construction cost and duration can be minimized because the temporary work and the overburden soil depth can be reduced.
Existing grade crossings between railway and roadway area gradually changed to grade separation systems by the law. In the case of new roadway construction which crosses railways, it shall be grade separation system in principle. With the railway underground crossing method, many practices have been developed which can minimize rail displacements and avoid rail release. With these methods, the effects to the train can be reduced. The underground crossing methods can be identified as open-cut methods and non open-cut methods. The open-cut methods include temporary support methods and special rail construction methods. Also the non open-cut methods includes pipe roof methods, front jacking methods, messer shield methods, NTR methods and JES methods. Among these, the most suitable method is applied considering safety, economy, class of each rail system (train passing frequency and velocity), etc. In the non open-cut methods, the cost and duration shall be increased to keep existing rail system during construction. In the open-cut methods which use plate girders, the rail speed shall be restricted due to the displacement and vibration of the girder. In this study new grade separation methods were developed. With this method, the safety during construction can be increased. This method refines temporary support methods, but pc slab girder with huge stiffness is applied instead of plate girders. With this method, the rail displacement can be reduced and higher safety can be obtained during construction. Also construction cost and duration can be minimized because the temporary work and the overburden soil depth can be reduced.
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논문에서 추출한 답변
지하횡단공법 어떻게 구분되는가?
지하횡단공법은 크게 개착식과 비개착식으로 구분된다. 개착 공법은 가받침 공법, 특수선 부설공법 등이 있으며, 비개착공법으로는 Pipe Roof공법, Front Jacking공법, Messel공법, Shield공법, NTR(New Tubular Roof), JES(Joint Element Structure)공법 등이 있다.
개착식 지하횡단공법은 무엇이 있는가?
지하횡단공법은 크게 개착식과 비개착식으로 구분된다. 개착 공법은 가받침 공법, 특수선 부설공법 등이 있으며, 비개착공법으로는 Pipe Roof공법, Front Jacking공법, Messel공법, Shield공법, NTR(New Tubular Roof), JES(Joint Element Structure)공법 등이 있다. 이들의 적용은 안전성, 경제성, 공사기간, 선로의 중요도(열차통과 횟수 및 속도), 단 복선, 구조물의 크기 등에 따라 적정한 공법이 적용되고 있다.
철도 지하 횡단을 위한 비개착공법은 무엇이 있는가?
지하횡단공법은 크게 개착식과 비개착식으로 구분된다. 개착 공법은 가받침 공법, 특수선 부설공법 등이 있으며, 비개착공법으로는 Pipe Roof공법, Front Jacking공법, Messel공법, Shield공법, NTR(New Tubular Roof), JES(Joint Element Structure)공법 등이 있다. 이들의 적용은 안전성, 경제성, 공사기간, 선로의 중요도(열차통과 횟수 및 속도), 단 복선, 구조물의 크기 등에 따라 적정한 공법이 적용되고 있다.
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