NASTT Case Study: Emergency Sewer Force Main Trenchless Rehabilitation Project in Valley Forge National Historic Park
NASTT Abstract: Tredyffrin Township faced three catastrophic failures of a 30-inch Prestressed Concrete Cylinder Pipe (PCCP), the Wilson Road Sewage Force Main (WRFM), between 2012 and 2014.. The majority of force main pipe is located within the national park, and the pipe alignment also parallels Valley Creek, which is an exceptional value trout stream. The compromised […]
NASTT Case Study: Pipeline in Mexico uses New Connection Method with Tight Fit HDPE Trenchless Lining System
NASTT Case Study Abstract: In 2017, a CO2 pipeline in southern Mexico was in need of an internal trenchless lining solution that would require an innovative new connection method to rehabilitate the pipeline. A pair of CO2 transport carbon steel pipelines owned and operated by Miller Pipeline had been out of service for 22 years […]
ASCE Case Study: Exploration of Loose-Fit and Tight-Fit Sliplining with Butt-Fusion Welded Thermoplastic Piping for Pipeline Rehabilitation
American Society of Civil Engineers (ASCE) Abstract: Trenchless rehabilitation of existing pipelines is a continually growing industry with many viable technologies available to the end user. Pipeline rehabilitation via sliplining methods is a well established means of trenchless construction that can sometimes be overlooked when evaluating rehabilitation options. With many older water and wastewater pipelines […]
