Reliability analysis on cantilever retaining walls embedded into stiff ground (Part 2: Construction management with piling data)

Part 1 showed that the scatters of the depth influenced the rotational and deformation failure of the cantilever retaining wall, especially when it is embedded short into stiff ground. This part considers on how to deal with the uncertainty using the piling data. Reliability and cost analyses draw following conclusions. The effect of the piling data on the expected total cost are about 8% for Serviceability Limit State and 27% for Ultimate Limit State at most. The construction management with the piling data has advantages especially when the uncertainty of the depth of the rock layer surface are large and additional geotechnical investigations are conducted, and when embedment depth is short. Furthermore, with the piling data, the expected total cost becomes less susceptible to the scatters of the depth of the rock layer surface, which make the proposed method effective in practice.