State of Technology Report for Force Main Rehabilitation, Final ...

AWWA M55 PE Pipe – Design and Installation Working pressure ratings; buried
pipe pressure design, sliplining
guidelines
ASTM F1606
This standard also contains a non-mandatory design appendix. As the practice is only intended to cover
gravity installations, the liner is designed to resist buckling from hydrostatic groundwater pressure in the
case of a partially deteriorated host pipe or hydraulic, soil, and live load in the case of a fully deteriorated
host pipe. Unlike the standard practices for deformed PVC pipe, the design formula for the partially
deteriorated condition does not include an “enhancement factor” (K) to reflect the confinement
contribution of the host pipe to the liner’s buckling resistance. However, there is a note included that
does introduce the enhancement factor to the modified Timoshenko formula.
AWWA M55
The AWWA manual on PE pipe design is very comprehensive, similar to the PVC pipe manual. Perhaps
the most important section in the manual deals with the determination of the working pressure rating of
PE based on the hydrostatic design basis. Surge calculations and allowance are also covered by the
manual. The manual also provides guidance on the installation of PE pipe taking into consideration its
thermal specific weight properties, which can be important in a sliplining application.
Table 5-7. Design Standards for Glass-Reinforced Thermosetting Plastic Pipe
Specification
No. Title Application
AWWA M45 Fiberglass Pipe – Pressure Pipe Design Most comprehensive design
approach, covers direct buried
FRP/GRP pipe
AWWA M45
AWWA M45 offers a comprehensive design method for the use of glass-reinforced plastic (i.e.,
Fiberglass) pipe in a pressurized system. The design is suited for buried pipe and takes account of the
interaction of external loads and internal pressure on FRP/GRP pipe’s long-term performance.
Calculations include pipe deflection to limit bending strain and buckling. Many of the design principles
can be used for a sliplining application, especially if the FRP/GRP pipe is to be a fully structural solution.
Table 5-8. ASTM Design Standards for CIPP Materials
Specification
No.
Title Application
ASTM F1216 Standard Practice for Rehabilitation of Existing Pipelines Appendix X1 most frequently
and Conduits by the Inversion and Curing of a Resin- used for renewal products.
Impregnated Tube
Covers pressure.
ASTM F1743 Standard Practice for Rehabilitation of Existing Pipelines Refers to F1216, Appendix X1
and Conduits by Pulled-in-Place Installation of Cured-in-
Place Thermosetting Resin Pipe (CIPP)
for design
ASTM F2019 Standard Practice for Rehabilitation of Existing Pipelines Refers to F1216, Appendix X1
and Conduits by the Pulled in Place Installation of Glass
Reinforced Plastic (GRP) Cured-in-Place Thermosetting
Resin Pipe (CIPP)
for design
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