After a number of successful projects using pipe
bursting and close-fit lining technologies, the City of Calgary, Canada evaluated a number of options to
renew a 300 mm cast iron water main on Spruce Drive. This assessment was carried
out following the City's Triple Bottom Line Policy of reducing the Social, Economical,
and Environmental impacts on City-managed projects. The City selected Insituform Technologies Limited's PolyFlex™ process to line the
water main. Following a methodology used in 2006 to execute several water main
lining projects, the City and Insituform planned the project and executed it cooperatively,
with City forces providing expertise in excavation and reconnections to the existing
system.
This paper provides a review of the project background, and the liner options that the
City and Insituform considered before choosing a tight fit DR 21 PE100 pipe. It
discusses the proactive approach to developing a staging plan for installation which
emphasized minimizing disruption to the residents and the area, as well as the selection
of fittings for terminating the liner and installing fittings. The plan included coordination
of access pit excavation by the City's construction crews.
The paper also provides an overview of the liner installation using installation, using the
PolyFlex™ process, and the City's installation of replacement fittings and system
reconnections. It also discusses the economic and social benefits of the project. Includes tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 3.6 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 34 |
| Published : | 11/01/2008 |
