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• W2322537423 abstract "최근 건설분야에 터널공사중 터널내 방재 및 유지관리를 위해 터널측벽부에 공동구를 설치하여 운영하고 있으며, 공동구의 설치는 주로 인력시공에 의하여 이루어지고 있다. 터널공사의 작업환경은 가설 전기의 사용에 따른 조도불량, 작업공간의 협소에 따른 안전사고 위험, 터널내 환경불량에 따른 작업자의 작업기피 현상을 발생시키고 있다. 이러한 환경에서의 인력작업은 안전성 저해 및 경제성 악화에 따른 원가상승 등의 문제점을 내포하고 있다. 이러한 문제점을 해결하기 위하여 VE절차에 의하여 아이디어를 도출하였고, 기계화 시공이 문제점 해결을 위한 좋은 방안으로 제시되었다. 터널공동구의 기계화 시공의 효과를 검증하기 위하여 시험시공을 실시하였고, 시공성과 경제성 측면에서 직접적인 개선효과가 있는 것으로 검증되었다. 아울러 인력에 의한 시공을 감소시킴으로써 안전성의 증가가 기대되며, 연속적인 콘크리트 타설로 인하여 마감성 및 미관이 개선되는 것으로 나타났다. In recent years, common ducts have been installed and operated in the sidewalls of tunnels to prepare for emergencies in tunnel construction and maintenance. The installation of common ducts is done mainly by humans. Problems with cost increases are inherent in tunnel construction by humans due to the safety risks and the economic inefficiency of humans performing construction activities. Among the problems that arise are poor illumination due to the use of temporarily installed electricity, the risk of accidents due to the confined workspaces, and workers avoiding work tasks because of the poor environment in tunnel. Ideas for solving these problems were developed using a value engineering (VE) process, and mechanized construction was identified as a promising solution. To verify the effectiveness of mechanized construction of a common duct in tunnels, experimental construction work was carried out, and mechanized construction was proven to directly improve the constructability and economic efficiency of common duct construction. In addition, reducing human involvement in common duct construction in tunnels is expected to improve safety, and because of the continuous concrete placement technique used, the finish and appearance of the ductwork are improved." @default.
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• W2322537423 date "2014-01-01" @default.
• W2322537423 modified "2023-09-27" @default.
• W2322537423 title "A Study on the Mechanized Construction for Common Ducts in a Road Tunnel" @default.
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• W2322537423 doi "https://doi.org/10.12652/ksce.2014.34.6.1937" @default.
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