Permeability and Shear Strength Characteristics of Oyster Shell-Sand Mixture for Application to SCP

모래다짐말뚝(SCP) 적용을 위한 굴패각.모래 혼합토의 투수 및 전단 강도 특성

The use of oyster shells is proposed as a substitute construction material for geotechnical applications. To investigate recycling possibility as a substitute of sand compaction pile (SCP) for oyster shells, the geotechnical characteristics including permeability and shear strength of crushed oyster shell, sand and crushed oyster shell-sand mixted soil. Experimental results show that the crushed oyster shells are lighter than sand in weight, and have similar characteristics on permeability to sand. The results of direct shear test show that the measured value of friction angle ${\Phi}$ of crushed oyster shell was lager than that of sand. It would be expected that more angular particles (crushed oyster shells) would interlock more thoroughly than rounded particles (send).