Repair or Replace: Technologies Available for Trenchless Remediation of Existing Infrastructure

Abstract

Management of water networks is now seen as managing a resource rather than conveying a product to a convenient outlet such that systems frequently act as detention conduits so water tightness is fundamental in the performance of the asset. Most frequently, the older assets lie in our largest cities which are now of high value and highly populated urban areas. Traditional open cut excavation to repair or replace these assets is disruptive as well as expensive and is often no longer recognised as an acceptable solution in today's world. This chapter explores what systems are available and what can be undertaken with modern day technology.