비개착공법으로 건설된 지하구조물 주변 지반 응력이완 방지 방안

초록

As the development of around railway area, the subsurface construction using non-open cut method under the railway has been recently increased. However, when the structure under railway is constructed, the track support stiffness of the ground is not considered as an important design factor. In this study, soil-nailling method and grouting method were proposed to prevent releasing the stress of the soil nearby structures constructed by non-open cut method in ballast track. Thus, 3D numerical analyses and field test were performed to find out the stability of the track. The results of this study present the applicability ot the field.