Dynamic behavior of cantilever tubular steel pile retaining wall socketed in soft rock

Stability against extreme loads, such as earthquakes, water rise behind the wall and its combination, is a major problem in the application of the cantilever steel tubular pipe wall (CSTP). Centrifuge model tests were carried out to study the mechanical behavior of the CSTP wall with a retain height H=12m and a pipe diameter Phi=2m subjected to such extreme loads in 50g for two different wall socket depth (d(e)) of 3 m and 2.5 m. Sequential loadings were applied to the wall with cohesionless backfill (dry & wet). Apart from these loadings, white noises were applied before each load to confirm the dynamic characteristics of the wall. The stability of the wall against dynamic and static loads has been significantly increased by 0.5 m increase in socket depth, and the resilience of the wall has been ensured until the end of the sequential loads for the wall with d(e)=3.0m.