Abstract
Non-linear settlement behaviour of axially loaded pile under actual working load is studied in this paper based on many loading test data accumulated in our country for these 30 years. Almost all of piles designed as a bearing pile are confirmed to behave as a friction pile due to the finite axial rigidity of pile.
Non-dimensional and numerical analysis of non-linear differential equation governing the frictional behaviour are discussed and compared with test results. Constant of frictional subgrade reaction for the analysis is presented by using SPT-value N. An approximating procedure and a chart for estimating pile settlement are proposed.
