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

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Technology/Method Subcoil/Close Fit PE Liner – Fold -and - Form I. Technology Background Status Emerging Date of Introduction Not available. Utilization Rates Not available. Vendor Name(s) Subcoil Subterra Daniels Contractors Ltd Lyncastle Way Appleton Thorn Warrington WA4 4ST UK Phone: +44 (0)1925 860666 Email: info@subterra.co.uk Web: www.subterra.co.uk Practitioner(s) Not available. Description of Main Features Subcoil is a close fit polyethylene lining that is factory folded and held in a “C” shape. Subcoil arrives on a large spool. After insertion, the liner is pressurized with water at ambient temperature breaking the temporary bands and reverting the pipe back to its original dimensions and forming a close fit with the host pipe. Main Benefits Claimed • Negotiate bends up to 22.5 o • Designed to be a thin wall liner that bridges over holes and gaps preventing leakage • Stops internal corrosion • Minimal lost of cross-sectional area and therefore capacity Main Limitations Cited • Custom extruded PE with OD to match host pipe ID Applicability (Underline those that apply) • Proprietary end fittings needed to join the liner up to the existing main Force Main Gravity Sewer Laterals Manholes Appurtenances Water Main Service Lines Other: Gas transmission and distribution II. Technology Parameters Service Application Water Supply and Distribution, Sewer Pumping Mains Service Connections Reinstate via excavation using proprietary fittings Structural Rating Semi-Structural (II) Claimed Materials of Composition PE 80 Diameter Range, inches 4-12 inches (95-300mm) Thickness Range, inches Not available. Pressure Capacity, psi Depends on size of hole being bridged Temperature Range, o F 73 o F (pressure derating required at higher temperatures) Renewal Length, feet 3,500 feet (1,000 meters) in one insertion Other Notes Not available. III. Technology Design, Installation, and QA/QC Information Product Standards NSF 61 Certified (for potable water applications) Design Standards Not available. Design Life Range 50 years Installation Standards Not available. Installation Methodology PE pipe is custom extruded with OD matching ID of host pipe. The host pipe is cleaned, removing any internal corrosion or deposits. The integrity of the host pipe should be checked via CCTV. The spool of PE is pulled through the host pipe. Insertion lengths of up to 3,500 feet are possible. The reduced cross-section PE pipe maintains its shape until subjected to internal water pressure. The internal pressure breaks the restraining straps and reverts the pipe back to its original diameter and in close contact with the host pipe. The string of PE pipes can be pulled through a bend of up to 22.5 o . Proprietary couplings are then attached to the end of the exposed pipe sections and make-up pieces are inserted to reconnect the pipe to the existing main. A-14
Technology/Method Subcoil/Close Fit PE Liner – Fold -and - Form QA/QC CCTV the line (after cleaning) to make sure there are no impediments to prevent insertion and reversion of the PE liner. Pressure test after insertion. IV. Operation and Maintenance Requirements O&M Needs Not available. Repair Requirements for Not available. Rehabilitated Sections V. Costs Key Cost Factors Not available. Case Study Costs Not available. References VI. Data Sources www.subterra.co.uk A-15
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EPA/600/R-10/044| March 2010 | www.
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DISCLAIMER The work reported in thi
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Introduction EXECUTIVE SUMMARY Forc
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The use of close-fit liners is ofte
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A whole host of ASTM specifications
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CONTENTS DISCLAIMER ...............
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6.0: OPERATION AND MAINTENANCE.....
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DEFINITIONS Cured-in-place pipe (CI
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3-D three-dimensional AASHTO ACP AR
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UV ultraviolet WERF Water Environme
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wastewater conveyance systems (EPA,
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• Section 8: Findings and Recomme
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Figure 2-2. Diameter Distribution o
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Figure 2-4. Location of Force Mains
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Proper inspection of force mains wo
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0.03% of the overall length. There
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Table 3-1. Summary of Renewal Techn
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3.3.3 Joint Repair 3.3.3.1 Internal
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more appropriate to a water main wh
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are, however, several communities (
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Table 3-3. Properties of Hunting Po
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3.4.3.1 Symmetrical Reduction Close
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Rolldown Rolldown was developed in
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Subline Subline, offered by Subterr
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On-Site Expandable PVC Close-Fit Li
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3.4.4.2 Semi-Structural CIPP Liners
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inch (150 mm) liner down to 60 psi
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3.4.5.1 Adhesive-Backed Woven Hose
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US. Primus Line is a seamless, wove
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Figure 3-21. Summary of Replacement
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favorable to stringing out a long l
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3.5.1.3 Pipe Slitting. Pipe slittin
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4.1 4.0 TECHNOLOGY SELECTION CONSID
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head loss to maintain flow capacity
Page 69 and 70: ferrous main, this can be an intern
Page 71 and 72: 5.0 DESIGN AND QA/QC This section w
Page 73 and 74: thickness? It can still support the
Page 75 and 76: pipe’s design life. Once again, i
Page 77 and 78: ASTM F1533 The renewal process invo
Page 79 and 80: AWWA M55 PE Pipe - Design and Insta
Page 81 and 82: Most of the controversy over the ap
Page 83 and 84: up to each individual manufacturer.
Page 85 and 86: For pressure applications, a hydros
Page 87 and 88: Dimensional checks on the pipe diam
Page 89 and 90: 5.6.2.3 CIPP Long-Term QA/QC Requir
Page 91 and 92: Figure 6-1. Polyurethane Pipeline C
Page 93 and 94: in currents or potentials indicate
Page 95 and 96: could also be used in force mains.
Page 97 and 98: 7.0 GAPS BETWEEN NEEDS AND AVAILABL
Page 99 and 100: 80 Table 7-1. Technology Gaps and C
Page 101 and 102: 82 Table 8-1. Parameters for Evalua
Page 103 and 104: 8.5 Sound, Risk-Based, Decision-Mak
Page 105 and 106: 9.0 REFERENCES Aggarwal, S.C. and M
Page 107 and 108: Technology/Method Spray - On Lining
Page 109 and 110: Technology/Method Spray - On Lining
Page 111 and 112: Technology/Method Spray - on Lining
Page 113 and 114: Technology/Method Close Fit/Tension
Page 115 and 116: Technology/Method Close Fit PE/Symm
Page 117 and 118: Technology/Method Symmetrical Reduc
Page 119: Technology/Method Rolldown/Close Fi
Page 123 and 124: Technology/Method PE Liner/ Cement
Page 125 and 126: Technology/Method Subline/Close Fit
Page 127 and 128: Technology/Method Fold and Form PE
Page 129 and 130: Technology/Method Fold -and - Form/
Page 131 and 132: Technology/Method Fold -and - Form/
Page 133 and 134: Technology/Method Fold -and - Form
Page 135 and 136: Technology/Method Fold -and - Form
Page 137 and 138: Technology/Method Close - Fit Linin
Page 139 and 140: Technology/Method CIPP/Pull In Plac
Page 141 and 142: Technology/Method CIPP/Inversion wi
Page 143 and 144: Technology/Method CIPP/Direct Inver
Page 145 and 146: Technology/Method CIPP/ Inversion a
Page 151 and 152: Technology/Method CIPP/Glass Fiber
Page 153 and 154: Technology/Method CIPP/Pull in Plac
Page 155 and 156: Technology/Method CIPP/UV Light Cur
Page 157 and 158: Technology/Method CIPP/Glass Reinfo
Page 159 and 160: Technology/Method CIPP with Carbon
Page 165 and 166: for Rehabilitated Sections V. Costs
Page 167 and 168: Technology/Method Woven Hose Lining
Page 169 and 170: Technology/Method Saertex - Liner®
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Technology/Method Hose Liner/Pulled
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Technology/Method Glass Reinforced
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Technology/Method Sliplining/HDD/Pi
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