철도 노반 재료의 다짐에너지와 탄성파 속도 간의 관계

초록

In this paper, the variation of elastic wave velocities with increasing compaction energy were analyzed. Trackbed materials were chosen for a series of compaction tests. For each compacted specimen with a given water content, compressive and shear wave velocities were measured. The combination of impulse hammer and accelerometer was used to measure the compressive wave velocity. A set of bender elements was used to measure the shear wave velocities. A relationship between compaction energy and elastic wave velocities were presented