주면 마찰력이 보강된 매입말뚝 공법의 개발에 관한 연구 ( An Experimental Study on the Development of The Injected Precast Pile Method with Improved Skin Friction )

Currently injected precast pile method has been used in building construction sites. However this method has some disadvantages in terms of construction cost and bearing capacity. We devised a new shape of auger head bit by putting a round tip. When the case of having a tip is compared to that of no tip, our approach increased skin friction and total bearing capacity by 51% and 13%, respectively. It is noted that our study used the dynamic pile loading test.