Renovation & Rehabilitation # 1998 Gothenburg
The fundamental structural characteristics of cured-in-place pipe for sewer linings are first described, and current procedure for their design reviewed. Following identification of the major inconsistencies in this design philosophy, a programme of research with the objective of addressing these issues is summarised. In particular a revised design model based on similar parameters to the current procedure is proposed. This remains simple and straightforward to use, but is now based on a rational definition of the problem and, once fully calibrated, should lead to significantly less conservative design.