합성율에 따른 지하합성벽의 전단내력에 관한 실험 연구

When doing underground excavation works for the purpose of constructing large underground structures for a building in the limited space in downtown area, the stability of the adjacent ground must be top priority, and to accomplish this, it is essential to review the retaining wall construction carefully. H-Pile, which has been mainly used as a stress-carrying material in temporary earth-retaining structures, is most likely to be abandoned after completion of the works for the basement exterior wall in relation to contiguous bored piles, so it will result in a waste of material. To improve this situation, Basement Composite Wall Method where H-Pile and basement wall are compounded, has been developed. This method is being used most frequently in many local construction sites. In this study, the researcher manufactured total four specimens in order to evaluate the shear resistance of the basement composite wall. Test was conducted taking the composition rate according to shear connectors as test parameter. And also, comparative analyses between the shear strength of both concrete and H-Pile, which are presented by standard formula at home and abroad, and test data were performed.