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대전 동서관통도로 Front-Jacking공법 시공사례
김용일(Kim Yong-Il),황낙연(Hwang Nak-Yeon),차종휘(Cha Jong-Whi),장성욱(Jang Sung-Wook),이내용(Lee Nai-Yong) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-
The crossing construction under railroad have two methods which are cut and cover and trenchless method. First, cut and cover method is an extremely limited method concerning non-running time. Whereas, trenchless method is free from restriction such as train speed and running time, and has the strong points of safe and rapid construction. Front Jacking method, one of the trenchless methods, is frequently applied recently due to its stability during construction and vantage of assuring schedule reliability. The procedure is that after minimizing interlocking friction with structure and earth pressure due to jacking the small steel tube, pulling the precast box manufactured at the field in the ground using PC strand and hydraulic Jack. This method is able to be applied regardless of section size and length of box and condition of soil. And that is also pro-environmental. This paper presents the case of Daejeon E. W. perforate Road Project applied with the Front Jacking method.