Analysis of Redistribution of the Pile Shaft-Base Load Using the Dynamic Load Test (DLT)

Abstract

The paper analyses transmission and redistribution of the load from the pile on the soil, with a special focus on these effects regarding the shaft and base of the pile. The test was conducted using the dynamic load test (DLT) by incrementally increasing the kinetic energy of the drop weight impact in several drops. The results of in‒situ DLTs are presented and after the performed signal matching for every impact of the drop weight. The testing and appropriate numerical analyses determined the mechanism of redistribution of the shaft-base load of the pile up to the ultimate bearing capacity, whereby there occurs a reduction in the transmission of the load via the shaft and an increase in the transmission of the load via the base.