Geotechnical aspects of lifeline engineering

The general principles of lifeline engineering are discussed and applications are illustrated with reference to pipeline networks. Key research findings are summarised regarding the effects of utility construction on existing pipelines, advanced backfilling methods and materials, and soil-structure interaction of polyethylene pipelines. Pipeline behaviour during earthquakes is reviewed with respect to the effects of permanent and transient ground deformation. Pipeline system performance is addressed in light of geographic information systems (GIS) and the observed behaviour and analysis of large networks during recent severe earthquakes.