REPAIR OF HOLLOW TUBULAR STRUCTURES

摘要

A method of increasing the structural strength of a hollow load bearing memb er such as a pile (12), particularly for the purpose of repairing a damaged pil e, includes the steps of fitting a rigid structural insert (17) into the pile (12) and spaced therefrom to form an interspace (18), filling the interspace (18) with an expansive filler (19), and allowing the filler (19) to set and expand in the interspace (18) to impose tensile hoop stresses in the pile (1 2) and corresponding compressive hoop stresses in the insert (17), to enhance t he load transfer between the pile (12) and the insert (17)