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MICHIGAN ASSOCIATION OF COUNTYDRAIN COMMISSIONERS
Trenchless Technologies = Less Disruption
Jesse B. VanDeCreek, P.E.Hubbell, Roth & Clark, Inc.
July 17, 2019macdc.us
• Founded in 1915
• 8 Offices Across Michigan
• Specializing in Infrastructure
• Recognized Top 50 Trenchless Engineering Firm Since 2006
• https://www.hrcengr.com/macdc.us
TRENCHLESS METHOD EXAMPLES
• Analysis & Maintenance– Video Inspection/Evaluation (CCTV), Cleaning, Root
Control, Grouting & Spot Repairs• Rehabilitation
– In-Situ Lining (CIPP), Slip Lining, Pipe Bursting, Compression-Fit Sliplining (CFSL), Spin Cast Geopolymer Structural Liner
• Replacement/New– Jack & Bore, Horizontal Directional Drilling (HDD),
Tunneling
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EXISTING UNDERGROUND UTILITIES
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MATURE TREES & LANDSCAPE
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AGING INFRASTRUCTURE
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TRENCHLESS TECHNOLOGIES
• Does Not Always Mean No Surface Disruption• Trenchless MINIMIZES Surface Disruption
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TRENCHLESS TECHNOLOGIES
• Trenchless MINIMIZES Surface Disruption
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TRENCHLESS DESIRED BENEFITS
• Minimize Surface Disruption• Reduced Traffic Disruption• Shorten Project Time-Line• Cost Effective Solution• GREEN TECHNOLOGY Mitigates Environmental Impact
– Large Trees– Mature Landscaping– Structures, Pavement, Utilities– Vehicles– People
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WHERE TO BEGIN?
• Identify the Problem• Investigate and Rank Constraints
– Budget– Schedule– Scope of Work– Project Goals
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CLOSED CONDUIT TELEVISING (CCTV)
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CLOSED CONDUIT TELEVISING (CCTV)
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IMPORTANT CONSIDERATIONS
• Project Needs & Constraints• Pipe Condition• Surface Condition• Pipe Material• Ground Conditions• Adjacent Utilities• Depth of Burial, Line & Grade• Pipe Size• Rehabilitation, Replacement or New
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TRENCHLESS REHABLITATION METHODS
• Pipe Bursting
• Slip Lining
• Compression-Fit Slip Lining (CFSL)
• Spin Cast Geopolymer Structural Liner
• CIPP – Cured In Place Pipe
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PIPE BURSTINGREHABILITATION
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• Results in New Pipe Within the Same Location as Existing Pipe
• Can Increase Dia. up to 2 Sizes Pending Burial Depth, Soils & Adjacent Utilities
PIPE BURSTINGREHABILITATION
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• Butt fusion is used to connect pipe sections to corresponding burst lengths
PIPE BURSTINGREHABILITATION
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• Hydraulic Equipment Lowered into Place
• Bursting Rods Shuttled through Host Pipe
PIPE BURSTINGREHABILITATION
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• Splitter and Expander Heads Attached
• Followed by New Pipe
PIPE BURSTINGREHABILITATION
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Bursting blade is drawn through the existing “Host” pipe causing it to fracture Expander then pushes
broken pipe into the surrounding soil creating annular space for new pipe
SLIP LININGREHABILITATION
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SLIP LININGREHABILITATION
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COMPRESSION-FIT SLIP LININGREHABILITATION
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• Results in New Pipe Within the Same Location as Existing Pipe
• HDPE Pulled Through a Reducing DIE and Stretched Through Existing Pipe
COMPRESSION-FIT SLIP LININGREHABILITATION
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• 16” Diameter WM • Avg 1,760 feet per day• 5,280 feet completed
in 3 days• Pull stress continually
monitored• 90% Reversion in 2
hours
COMPRESSION-FIT SLIP LININGREHABILITATION
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COMPRESSION-FIT SLIP LININGREHABILITATION
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SPIN CAST GEOPOLYMER STRUCTURAL LINERREHABILITATION
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SPIN CAST GEOPOLYMER STRUCTURAL LINERREHABILITATION
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CURED-IN-PLACE PIPEREHABILITATION• Storm Sewers• Drain Culverts• Sanitary Sewers• Water Mains• Chilled Water• Duct Banks
• STEAM INVERSION INSTALLATION
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CURED-IN-PLACE PIPEREHABILITATION• Felt Fabric Composite• Resin Saturated• Polyester Jackets• Polyurethane Coatings• Polymeric Membrane• Structurally Stand
Alone Liner
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CURED-IN-PLACE PIPEREHABILITATION• New CIPP • Post Installation
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CURED-IN-PLACE PIPEREHABILITATION• Twin 48-inch Culverts• Under 11 Mile Road in
Farmington Hills• 145-feet / Each
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CURED-IN-PLACE PIPEREHABILITATION
• 48-inch Twin Barrel• 250-feet Length / Each• Drain Culvert• Indiana
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CURED-IN-PLACE PIPEREHABILITATION
• 54-inch• 200-feet Length• Drain Culvert• Indiana
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CURED-IN-PLACE PIPEREHABILITATION
• 84-inch Diameter• 350-feet in Length• Drain Culvert• Warwick, IN
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CURED-IN-PLACE PIPEREHABILITATION
• 108-inch Diameter• 200-feet Length• Drain Culvert• Mayfield, OH
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TRENCHLESS REPLACEMENT / NEW METHODS
• HDD - Horizontal Directional Drilling
• Jack & Bore
• Micro-Tunneling
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HORIZONTAL DIRECTIONAL DRILLING (HDD)REPLACEMENT / NEW• Best for Pressure Pipe
Applications (WM & FM)• Minimum 1% Gradient
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HORIZONTAL DIRECTIONAL DRILLING (HDD)REPLACEMENT / NEW• Pullback• New Pipe
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HORIZONTAL DIRECTIONAL DRILLING (HDD)REPLACEMENT / NEW• Typical Rig• New Pipe
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JACK-AND-BOREREPLACEMENT / NEW
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JACK-AND-BOREREPLACEMENT / NEW
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JACK-AND-BOREREPLACEMENT / NEW
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MICROTUNNELINGREPLACEMENT / NEW• KWA Raw Water Pump
Station
• 78-inch Diameter
• New Lake Huron Intake
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MICROTUNNELINGREPLACEMENT / NEW
• KWA 78-inch Diameter
• New Lake Huron Intake
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MICROTUNNELINGREPLACEMENT / NEW
• KWA 78-inch Diameter
• New Lake Huron Intake
• Northern Concrete Pipe
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MICROTUNNELINGREPLACEMENT / NEW
• KWA 78-inch Diameter
• New Lake Huron Intake
• Northern Concrete Pipe
• Steel Bell Band Pipe
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MICROTUNNELINGREPLACEMENT / NEW• KWA 78-inch Diameter• Extraction from Lake Huron
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TRENCHLESS CLOSING THOUGHTS
• More Local Qualified Contractors• Can Competitively Bid Versus Open-Cut
– Some Additional Design Effort• Trenchless Technologies are Being Used with
Increasing Frequency• To Achieve the Best Total Project Cost, Schedule
and Outcomes Additional Engineering Effort May Be Required in Early Phases
• Green Technology!
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ACKNOWLEDGEMENTS & SOURCES
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