Review of PIM (Pipeline Insertion Method) Technology
CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
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This report discusses the first demonstration of PIM Pipeline Insertion Method, formerly Pipe Insertion Machine technology for sewer rehabilitation in the United States in 1987, complete with a battery of physical testing for vibration and soil deformation. The technology, first developed for gas main replacement, uses an impact mole to burst the existing pipe outward into the surrounding soil and replace it at the same rate with HDPE High Density Polyethylene. PIM is the foremost trenchless technology which can replace exiting pipe with equal or larger diameter pipe. The technology is applicable to sewer, water, and gas mains and can be cost-competitive with open trench techniques in specialized circumstances, such as areas with high surface restoration costs under paved areas, through environmentally sensitive areas, etc. A body of knowledge has developed during the past two years as the number of users has increased. This paper will summarize the existing state-of-the-art of the technology with waste water collection systems including information on applicability, economics, advantages and disadvantages, and lessons learned.
- Pumps, Filters, Pipes, Tubing, Fittings and Valves
- Water Pollution and Control