Relationship between cell-indicated earth pressures and field earth pressures in backfills

Pressure indicated by earth pressure cell (EPC) often deviates from field earth pressure . EPC in normally consolidated soil was analysed with Taylor’s indentation method. It is found that assumes a linear relationship with soil’s compression modulus and . When preconsolidation pressure imposed on overconsolidated soil is unloaded, soil’s rebound strain is greater than EPC’s, and a gap between EPC’s sensing plate and soil appears. Upon...