Maintanance and renovation applications of water and sewerage systems with the least environmental impact:İstanbul case

In this study, operational conditions of current infrastructure systems, such as water andwastewater pipelines, and some breakdowns types occurred in these systems, identificationmethods, repairing methods were investigated. There are many types of studies about thissubject. Especially, there is an increasing trend for technological developments applied inthese types of systems. Closed Circuit Television Systems (CCTV) has given us informationabout current infrastructure conditions and this information has been evaluated to determinethe types of repairement methods and to operate the systems easily.On the other hand, trenchless technology techniques were also studied in this research.Moreover, CIPP technology one of the trenchless technique is explained in detail.As a result, comparison of excavation systems and nondigging systems was performed.Besides, benefits of nondigging methods at the area of the infrastructure renovations werecited.Key Words: trenchless technology, infrastructure systems, CCTV, CIPP