Behaviour of a Watertight Anchored Retaining Wall in Soft Soil Conditions

A watertight prestressed anchored retaining wall was used in an excavation in Marmaris, a town located on the Southwest coast of Turkey due to presence of high water level and soft soil conditions. Following a detailed geotechnical investigation an analysis of the retaining system was performed by Plaxis Finite Element Program. The analysis consisted of stage construction simulating the real case. The behaviour of the watertight pile wall was monitored by means of inclinometric measurements. The paper describes the overall stability problems disclosed by Plaxis finite element and Slope-W slope stability programs and their remediation and the problems encountered during construction and inclinometric measurements. The lateral displacements of the retaining wall obtained in the analyses are compared with the inclinometric measurements taken during the excavation program