pilot tube guided boring pipe ramming...basics •4-in through 147-in casings •118-in, 122-in,...
TRANSCRIPT
![Page 1: Pilot Tube Guided Boring Pipe Ramming...BASICS •4-in through 147-in casings •118-in, 122-in, 138-in & 147-in casings Successfully Rammed •Eliminates Slump or Rise •Tools Configure](https://reader030.vdocument.in/reader030/viewer/2022041009/5eb5f5817586476dcf48cd1a/html5/thumbnails/1.jpg)
Pilot Tube Guided Boring
&
Pipe Ramming
With Case Histories
![Page 2: Pilot Tube Guided Boring Pipe Ramming...BASICS •4-in through 147-in casings •118-in, 122-in, 138-in & 147-in casings Successfully Rammed •Eliminates Slump or Rise •Tools Configure](https://reader030.vdocument.in/reader030/viewer/2022041009/5eb5f5817586476dcf48cd1a/html5/thumbnails/2.jpg)
Pipe Ramming
PIPE RAMMING
![Page 3: Pilot Tube Guided Boring Pipe Ramming...BASICS •4-in through 147-in casings •118-in, 122-in, 138-in & 147-in casings Successfully Rammed •Eliminates Slump or Rise •Tools Configure](https://reader030.vdocument.in/reader030/viewer/2022041009/5eb5f5817586476dcf48cd1a/html5/thumbnails/3.jpg)
Pipe RammingBASICS
• 4-in through 147-in casings
• 118-in, 122-in, 138-in & 147-in casingsSuccessfully Rammed
• Eliminates Slump or Rise
• Tools Configure to a Range of CasingDiameters
STANDARD RAMMING
![Page 4: Pilot Tube Guided Boring Pipe Ramming...BASICS •4-in through 147-in casings •118-in, 122-in, 138-in & 147-in casings Successfully Rammed •Eliminates Slump or Rise •Tools Configure](https://reader030.vdocument.in/reader030/viewer/2022041009/5eb5f5817586476dcf48cd1a/html5/thumbnails/4.jpg)
THE PROCESS:
Typical Pipe Ramming Configuration
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ROUTINE
12” Thru 36”
CHALLENGING
36” Thru 80”
ADVANCED
80” Thru 144”
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Pipe Ramming
HDD
TECHNIQUES
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CONDUCTOR BARREL
• Ram Casing Through Difficult Soils
• Preferable Starting Point for Drilling
• Guide for Down-hole or Mud Motors
• Friction-Free Section for Pullback
TECHNIQUES
Pipe Ramming
![Page 9: Pilot Tube Guided Boring Pipe Ramming...BASICS •4-in through 147-in casings •118-in, 122-in, 138-in & 147-in casings Successfully Rammed •Eliminates Slump or Rise •Tools Configure](https://reader030.vdocument.in/reader030/viewer/2022041009/5eb5f5817586476dcf48cd1a/html5/thumbnails/9.jpg)
Conductor Barrel Step 1-Job Site
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Conductor Barrel Step 2-Job Site
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PIPE REMOVAL/ BORE
SALVAGE
• Rammer Attached to Product Pipe
• Percussion Removes Pipe from Bore
• Salvage Job
• Bore Again
TECHNIQUES
Pipe Ramming
![Page 12: Pilot Tube Guided Boring Pipe Ramming...BASICS •4-in through 147-in casings •118-in, 122-in, 138-in & 147-in casings Successfully Rammed •Eliminates Slump or Rise •Tools Configure](https://reader030.vdocument.in/reader030/viewer/2022041009/5eb5f5817586476dcf48cd1a/html5/thumbnails/12.jpg)
Product Pipe Removal/Bore Salvage-Job Site
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PULLBACK ASSIST
• Rammer Attached to Pipe During Pullback
• Percussion Keeps Pipe Moving
• Helps Prevent High Stress Levels
• Overcomes Hydrolock, Frees Pipe
TECHNIQUES
Pipe Ramming
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Pullback Assist-Job Site
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PIPE RAM RESCUE
• Used to Retrieve Stuck TBMs
• Reverse Line & Grade
• Casing Diameter Larger than Bore
• Ram Casing to Meet Trapped TBM
• Remove Spoil & Retrieve TBM
Pipe RammingTECHNIQUES
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Pipe Ram Rescue-Job Site
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GBM BACKGROUND
• On Grade & Alignment Installation
• Highly Accurate Installations
• Theodolite Guidance System
• Video Monitoring of Illuminated Target
• Angled Steering Head Similar to HDD
Pipe RammingCASE STUDIES
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GBM BACKGROUND
• Pilot Tubes Installed behind Steering Head
• Next, Auger Head Tube Sections Installed
• As Auger Sections Installed, Pilot Tube Sections Removed at Exit Pit
• Next, Pipe Adapter Installed
• Product Casing Attached to Adapter
• Thrust into Place
Pipe RammingCASE STUDIES
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GBM BACKGROUND
• Not All Soil Conditions or Pipe DiametersFavorable for total GBM Installation
• Pipe Ramming Assist
• After Pilot Tubes Installed on Line & Grade
• Special Ramming Adapters
• Rammer takes place of Auger
• Installation remains on Line & Grade
Pipe RammingCASE STUDIES
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PROJECT BACKGROUND
• Sanitary Sewer Main
• 36-inch Diameter inside 54-inch Casing
• 160 feet in length
• New Development
• Under Concrete Creek Channel
• Creek runs through town
• Feeds into MN River
Pipe RammingCASE STUDIES
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PROJECT BACKGROUND
• Grade Sensitive Project
• Avoid slump & disturbance of concrete channel
• Unstable, saturated ground conditions
• Engineer utilized slump monitoring equip.
Pipe RammingCASE STUDIES
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PROJECT SPECS
• Began @ 1% Downhill Grade
• 4-inch Pilot Tube
Pipe RammingCASE STUDIES
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PROJECT SPECS
• Installed 4-inch to 24-inch Adapter
• Pushed into place
Pipe RammingCASE STUDIES
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PROJECT SPECS
• Installed 24-inch to 54-inch Adapter
• Pushed into place
Pipe RammingCASE STUDIES
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PROJECT SPECS
• Remove Auger
• Weld 54-inch by 20-ft casing to adapter
• Set up pipe rammer
• Cut out steel bulk head
• Loose material & water flow
• Sandbags & Underlayment fabric to lessen flow
Pipe RammingCASE STUDIES
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PROJECT RESULTS
• 1st Section Installed without incident
• Next section added and rammed in place
• Subsequent casing sections rammed in place
Pipe RammingCASE STUDIES
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PROJECT RESULTS
• Casing installed on grade
• 24-in to 54-in Adapter Removed
• Spoil removed with auger
• Ramming Times: 20-50 Min/20-ft section
Pipe RammingCASE STUDIES
![Page 62: Pilot Tube Guided Boring Pipe Ramming...BASICS •4-in through 147-in casings •118-in, 122-in, 138-in & 147-in casings Successfully Rammed •Eliminates Slump or Rise •Tools Configure](https://reader030.vdocument.in/reader030/viewer/2022041009/5eb5f5817586476dcf48cd1a/html5/thumbnails/62.jpg)
![Page 63: Pilot Tube Guided Boring Pipe Ramming...BASICS •4-in through 147-in casings •118-in, 122-in, 138-in & 147-in casings Successfully Rammed •Eliminates Slump or Rise •Tools Configure](https://reader030.vdocument.in/reader030/viewer/2022041009/5eb5f5817586476dcf48cd1a/html5/thumbnails/63.jpg)
![Page 64: Pilot Tube Guided Boring Pipe Ramming...BASICS •4-in through 147-in casings •118-in, 122-in, 138-in & 147-in casings Successfully Rammed •Eliminates Slump or Rise •Tools Configure](https://reader030.vdocument.in/reader030/viewer/2022041009/5eb5f5817586476dcf48cd1a/html5/thumbnails/64.jpg)
![Page 65: Pilot Tube Guided Boring Pipe Ramming...BASICS •4-in through 147-in casings •118-in, 122-in, 138-in & 147-in casings Successfully Rammed •Eliminates Slump or Rise •Tools Configure](https://reader030.vdocument.in/reader030/viewer/2022041009/5eb5f5817586476dcf48cd1a/html5/thumbnails/65.jpg)
PROJECT RESULTS
• Slump Monitoring Results:
• Front of Launch Pit Levee Edge- 2 ½ inches
• Under Channel- ½ inch
• Receiving Pit Levee Edge- 1 ¼ inches
• All within tolerance
• Less slumping than anticipated
Pipe RammingCASE STUDIES