저심도 개착공법에 관한 연구

There is close relationship with an urban growth, development of technology and development of transportation. As the results of this, subways, trains, buses, etc. would be represented transportations by land. In particular, subways are being built in metropolitan cities for transportation ability and safety. However, Local government is interested in light weight subway industry that can be reduces construction and operating costs compared with subway. Even though the light weight subway is chipper than subway, the light weight subway, now being planned or under construction, are built on existing roads through overpass method. In this method spoils the appearance of the city and makes narrow the road lanes. On the other hands, tunnel methods which install on deep depth are bring an economic problem. Therefore on this study, would explain about a Near-Surface Open Trench which can be modified conventional construction methods, secured economic problem through the foreign case and sharp curve and sharp slope construction method using open shield machine.