Quality Assurance and Quality Control Practices for Rehabilitation of Sewer and Water Mains

摘要

The report provides an overview of how QA/QC issues have been handled in North America for trenchless rehabilitation technologies. Section 1 provides an overall background on current and historical practices for inspection and QA/QC of trenchless rehabilitation projects, including definitions of key terminology. The issues discussed include qualification testing (done to confirm suitability for a particular application), design considerations for these often proprietary technologies, the impact that the technologies have on the traditional QA/QC model for engineering projects (i.e., construction observation roles), and the level of emphasis placed on the QA/QC of the completed works versus more traditional replacement or new construction techniques.