Download - Barbco Guided Boring - Canton Chamber
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Barbco Guided Boring
Presented by Scott FisherInternational Sales / Technical Advisor
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Conventional Steering Head• A very popular
method of grade control today
• Longest recorded bore with this
method is 880 feet.• Unity Development
2-1/4” high, 17’ to the right.
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Controlled Boring System (CBS)
Designed by Jim Barbera at Barbco Inc.
• Incorporated the use of an HHD Sonde mounted on top of casing using a DCI Receiver (Eclipse to F5) we could monitor the location of the casing to a .1% tolerance
• Computer program that allowed the operator to keep track of steering corrections
• Accuracy – depending on soil conditions could be 1” every 100 feet
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Boring Machine Tunnel Attachment (BMTA)
• Machine operated from inside and propelled by the Auger Boring Machine
• Provides spoil removal with invert auger in smaller casing
• Independently mounted pipe laser set up at rear of entrance pit provides laser beam to a target mountedinside BMTA and allows operator to monitor line and grade of casing
• Main Electric motor drives cutter head with a smaller motor running Hydraulic power unit to run 4 steeringrams for articulation of the cutter head
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• January 2004- first Barbco pilot system.
Utilized 5” OD x 5’ pilot rod with threaded hand collars. Output specifications: 8000 ft./lbs. of torque and 280,000 lbs. of thrust force.
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TriBor - Models 30, 36 and 48• Hybrid boring unit incorporating Auger Boring, Pilot tubing and
Horizontal Directional Drilling into one unique system.
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GUIDED BORINGPilot tooling
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Standard steering tips• 45-degree standard
steering tip (plain or carbide)
• ½” lubrication port
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HARD ROCK AIR HAMMER
5 and 8 XL Prospector
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GUIDED BORING
Casing phase tooling
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Knife reamer- The best way to follow the pilot in soft ground
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Conventional cutting head-Limiting the overcut will reduce downward drag on the
pilot
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FlexBor System-Limits the overall weight in
the casing. Uses air to excavate the cuttings.
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PAST PROJECTS
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Idle Wild 48” Hand Tunnel Project • Finished last 53’ in hard rock on L&G• Prototype Rotary Air Hammer• Bore was finished with a Robbins Head
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Mosaic Hwy Project• 3- 460’x 48 Guided Bores in
sand, clay and coral formation
• Steerable Roller Cone Bit
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Kentucky Refinery Project• 260’ x 36” Casing• PF500 & Air Hammer• Retractable Roller Cone
Head• Negative 24.330% grade
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I-85 Crossing in PA.• 500’ Guided Bore in slab rock back
fill. Steerable roller cone pilot bit.• 16” Cased FlexBor & Barbco 48/950
Auger Boring Machine.
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San Marcos, TX.-*390’ Foot Long Guided Auger Bore
*Cobble rock.*7” pilot rod, TCI Bit and Roller Cone.
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• 380’ x 30” Tribor36 crossing • Med- hard rock, line and grade.• GBM with 8” Air Hammer
Tulsa- Kendall Whittier Project.
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Paducah, KY Project• Multiple short GBM crossings
thru highly sensitive area. • 20” FlexBor Push Reamer• Pulling 12” plastic duct
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*250-Foot-Long Total*Hard clay/ dirt mix*10” Flextool *385 CFM & 2 GPM water
Findlay, OH I-75 Project-
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30” PDC Conventional Auger Boring Rock Head• 230’ x 30” Pathfinder 500 • Hard rock, line and grade.• GBM with 5” Air Hammer
Radcliff, KY Project
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Presented by Scott FisherInternational Sales / Technical Advisor
(330)-413-4822 [email protected]
THANK YOU FOR YOUR TIME!