Small Scaled Pull-out Tests on Group Effect of Screw Anchors in Saturated Sand

포화토내 나선형 앵커의 무리효과에 관한 실험적 고찰

In the present study, laboratory pull-out tests with screw anchors are carried out to investigate behavior characteristics of underground structures applied uplift seepage forces. Small scaled pull-out tests in sand were conducted under saturated condition. And then, it was observed that the upward displacement as well as the pullout load varied with spacing of the anchor. Also, analyses have been performed with the aim of pointing out the effects of various parameters on the group effect of the screw anchors.