Author(s)

M. Bustamante, L. Gianeselli & J.-L. Ledoux

Abstract

During a survey of the oldest bridge in Bordeaux, severe damages have been observed on the piers adjacent to the left bank abutment. They have been attributed to the combined effect of differential settlement and scouring. After considering various strengthening schemes, underpinning by micropiling was adopted. The residual capability of the timber piling was also taken into account. The suitability of the micropile solution and its feasability have been checked out in situ. A comprehensive monitoring of the underpinned bridge has been carried out. The reported monitoring observations span over a period of 5 years,

Keywords