프리텐션 효과에 따른 쏘일네일링 벽체의 거동특성에 관한 실험적 고찰

An Experimental Study on Behavior Characteristics of the Soil Nailed Wall with Effects of the Pretension Force

In this study, a newly modified soil nailing technology named as the pretension soil nailing system, is developed to reduce both facing displacements and ground surface settlements in top-down excavation process as well as to increase the global stability. Up to now, the pretension soil nailing system, has been investigated mainly focusing on an establishment of the design procedure. In the present study, laboratory model tests are carried out to investigate the failure mechanism and behavior characteristics of the pretension soil-nailed wall. Various results of model tests are also analyzed to provide a fundamental basis for the efficient design.