1. Pilot Tube or Guide Boring Method for Pipe Ramming Guidance
With Case Histories

2. AGENDA Pipe Ramming Drill Stem Recovery Pipe Removal / Bore Salvage
Case Study: EJM Pilot Tube Pipe Ram
Pipe Ram Slick Bore
Case Study: Slick Bore
Case Study: Railroad Culvert Undercrossing
Questions

3. Pipe Ramming
PIPE RAMMING

4. STANDARD RAMMING Pipe Ramming 4-in through 147-in casings
BASICS
STANDARD RAMMING
4-in through 147-in casings
118-in, 122-in, 138-in & 147-in casings Successfully Rammed
Eliminates Slump or Rise
Tools Configure to a Range of Casing Diameters

5. THE PROCESS: Typical Pipe Ramming Configuration

6. ROUTINE
12” Thru 36”
CHALLENGING
36” Thru 80”
ADVANCED
80” Thru 144”

8. DRILL STEM RECOVERY Pipe Ramming Rammer Fitted with Special Sleeve
TECHNIQUES
DRILL STEM RECOVERY
Rammer Fitted with Special Sleeve
Drill Stem Welded to Back of Sleeve
Percussion Frees Stuck Drill Stem
Push Through or Pull Out

9. Drill Stem Retrieval

10. PIPE REMOVAL/ BORE SALVAGE
Pipe Ramming
TECHNIQUES
PIPE REMOVAL/ BORE SALVAGE
Rammer Attached to Product Pipe
Percussion Removes Pipe from Bore
Salvage Job
Bore Again

11. Product Pipe Removal/Bore Salvage-Job Site

12. CASE STUDY: EJM PILOT TUBE-PIPE RAM
Pipe Ramming
CASE STUDY: EJM PILOT TUBE-PIPE RAM

13. GBM BACKGROUND Pipe Ramming On Grade & Alignment Installation
CASE STUDIES
GBM BACKGROUND
On Grade & Alignment Installation
Highly Accurate Installations
Theodolite Guidance System
Video Monitoring of Illuminated Target
Angled Steering Head Similar to HDD

17. GBM BACKGROUND Pipe Ramming
CASE STUDIES
GBM BACKGROUND
1. Pilot Tubes Installed behind Steering Head
2. Auger Head Tube Sections Installed
As Auger Sections Installed, Pilot Tube Sections Removed at Exit Pit
Pipe Adapter Installed
Product Casing Attached to Adapter
3. Thrust into Place

18. GBM BACKGROUND Pipe Ramming
CASE STUDIES
GBM BACKGROUND
Not All Soil Conditions or Pipe Diameters Favorable 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

21. PROJECT BACKGROUND EJM Pipe Services- Lino Lakes, MN
Pipe Ramming
CASE STUDIES
PROJECT BACKGROUND
EJM Pipe Services- Lino Lakes, MN
Project Location: Chaska, MN
Along the Minnesota River
Spring Thaw
Flood Stage River Levels

22. PROJECT BACKGROUND Pipe Ramming Sanitary Sewer Main
CASE STUDIES
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

23. PROJECT BACKGROUND Grade Sensitive Project
Pipe Ramming
CASE STUDIES
PROJECT BACKGROUND
Grade Sensitive Project
Avoid slump & disturbance of concrete channel
Unstable, saturated ground conditions
Engineer utilized slump monitoring equip.

28. PROJECT SPECS Pipe Ramming Began @ 1% Downhill Grade 4-inch Pilot Tube
CASE STUDIES
PROJECT SPECS
1% Downhill Grade
4-inch Pilot Tube

36. PROJECT SPECS Pipe Ramming Installed 4-inch to 24-inch Adapter
CASE STUDIES
PROJECT SPECS
Installed 4-inch to 24-inch Adapter
Pushed into place

41. PROJECT SPECS Pipe Ramming Installed 24-inch to 54-inch Adapter
CASE STUDIES
PROJECT SPECS
Installed 24-inch to 54-inch Adapter
Pushed into place

43. PROJECT SPECS Pipe Ramming Remove Auger
CASE STUDIES
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

49. PROJECT RESULTS Pipe Ramming 1st Section Installed without incident
CASE STUDIES
PROJECT RESULTS
1st Section Installed without incident
Next section added and rammed in place
Subsequent casing sections rammed in place

53. PROJECT RESULTS Pipe Ramming 4- to 24-inch Adapter Removed
CASE STUDIES
PROJECT RESULTS
4- to 24-inch Adapter Removed
Final Casings installed to 160 feet

56. PROJECT RESULTS Pipe Ramming Casing installed on grade
CASE STUDIES
PROJECT RESULTS
Casing installed on grade
24-in to 54-in Adapter Removed
Spoil removed with auger
Ramming Times: Min/20-ft section

60. PROJECT RESULTS Pipe Ramming Slump Monitoring Results:
CASE STUDIES
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

61. CASE STUDY REVIEW

62. PIPE RAM SLICK BORE Pipe Ramming Ram in Reusable Bore Pipe
TECHNIQUES
PIPE RAM SLICK BORE
Ram in Reusable Bore Pipe
Clean Out Spoil
Weld Product Pipe to Back End of Bore Pipe
Remove Bore Pipe with Winching Device
Pull in Product Pipe while Removing Bore Pipe
Use Bore Pipe Again

63. Slick Bore Step #1

64. Slick Bore Step #2

65. Slick Bore Process Overview

66. CASE STUDY SLICK BORE

67. PROJECT BACKGROUND Pipe Ramming
CASE STUDIES
PROJECT BACKGROUND
MinnCan Pipeline project is a mile 24” crude oil pipeline
From the Minnesota-Canada border to the Flint Hills Resources Refinery in Rosemount, MN
Pipeline is owned by Natural Resources Group, Inc., Minnesota Pipeline Company, and Universal Ensco, Inc

68. PROJECT BACKGROUND Pipe Ramming Two Sections:
CASE STUDIES
PROJECT BACKGROUND
Two Sections:
Northern mile section from the Canadian border to Clear brook, MN
Southern mile section from Clearbrook, MN. to the refinery in Rosemount, MN
Total of 303 road crossings and 19 horizontal directionally drilled crossings

69. PROJECT BACKGROUND Pipe Ramming MN Limited- Southern Section
CASE STUDIES
PROJECT BACKGROUND
MN Limited- Southern Section
156 road crossings

70. EQUIPMENT LIST Pipe Ramming Goliath Grundoram pipe rammer
CASE STUDIES
EQUIPMENT LIST
Goliath Grundoram pipe rammer
BP 500 bentonite pump for lubrication
24” pipe ramming accessories
Pig launcher and pipe pigs for clean out
Reusable bore pipe

71. SLICK BORING Pipe Ramming The reusable bore pipe is rammed in place
CASE STUDIES
SLICK BORING
The reusable bore pipe is rammed in place
Bentonite or polymers are used to lubricate the bore hole and the soil inside the bore pipe
The soil is expelled from the bore pipe
Line pipe will then be welded to the bore pipe

72. SLICK BORING Pipe Ramming Utilizing a sideboom tractor and winch
CASE STUDIES
SLICK BORING
Utilizing a sideboom tractor and winch
The bore pipe is pulled out of the bore hole
While the line pipe,welded to the bore pipe, is pulled into place

73. Pipe Ramming
CASE STUDIES
ON THE JOB
Stearns County Road 23 northwest of Richmond, MN
95 ft. bore
Bore pipe:115 ft. of in wall x 24-in diameter pipe
0.750” bentonite supply line welded to the pipe

74. Pipe Ramming
CASE STUDIES
ON THE JOB
115 ft. bore pipe was lifted into position with a sideboom & an excavator
Rammer positioned and supported by an excavator
Air compressor and bentonite pump are mounted to a semi-tractor trailer for mobility
Positioned on the right-of-way at the edge of the open ditch next to the bore pit

75. Pipe Ramming
CASE STUDIES
ON THE JOB
Typical bentonite or polymer application approx. 900 gallons for a 95 ft. bore
Ramming times varied from 30 to 60 minutes per bore
Three bores of 95 ft. length were completed the first week
At the week two the crew had completed five bores of 95 to 100 ft. in length and one bore 240 ft. in length

76. Pipe Ramming
CASE STUDIES
ON THE JOB
By the time they completed Phase 3 they were doing 8 bores per week in a six day work week

105. Case Study: Railroad Culvert Undercrossing
Pipe Ramming
Case Study: Railroad Culvert Undercrossing

106. ARB Failed Culvert Replacement 48- & 65-inch Culverts
Pipe Ramming
CASE STUDIES
ARB
Union Pacific Railroad Culvert
Failed Culvert Replacement
48- & 65-inch Culverts
24-inch Grundoram Taurus
Access
Emergency Ram
NOTEABLE

107. LOCATION Pipe Ramming Feather River Canyon East-West Rail Corridor
CASE STUDIES
LOCATION
Feather River Canyon
East-West Rail Corridor
Northern Nevada & Northern California
Sierra Nevada Mountains

108. BACKGROUND Pipe Ramming Early 2006- Significant Drainage Problems
CASE STUDIES
BACKGROUND
Early Significant Drainage Problems
Runoff Culverts - Failed & Collapsed
Emergency Crews 24 hr pumping
Train traffic slowed 10 mph
Relieve pressure on saturated soils

109. PROJECT SPECS Pipe Ramming Difficult Soil Conditions
CASE STUDIES
PROJECT SPECS
Difficult Soil Conditions
Ramming ideal solution
Difficult access
Equipment brought in on rail cars
Elevation 4,500-5,000 feet

110. PROJECT SPECS Pipe Ramming Install 48- & 65-inch culverts Pipe Ramming
CASE STUDIES
PROJECT SPECS
Install 48- & 65-inch culverts
Pipe Ramming
24-inch diameter rammer
### lbs dynamic energy
(2) 1,600 CFM Air Compressors

111. Arntzen Steel Rockford, Ill.

112. Arntzen Steel Rockford, Ill.

113. Arntzen Steel Rockford, Ill.

114. Arntzen Steel Rockford, Ill.

115. Arntzen Steel Rockford, Ill.

116. Arntzen Steel Rockford, Ill.

117. Arntzen Steel Rockford, Ill.

118. Arntzen Steel Rockford, Ill.

119. Arntzen Steel Rockford, Ill.

120. Arntzen Steel Rockford, Ill.

121. Arntzen Steel Rockford, Ill.

122. Arntzen Steel Rockford, Ill.

123. Arntzen Steel Rockford, Ill.

124. Arntzen Steel Rockford, Ill.

125. Arntzen Steel Rockford, Ill.

126. Pipe Ramming
CASE STUDIES
LESSONS
Deteriorating infrastructure not limited to cities municipalities or utilities
Deteriorating Rail Culverts pose serious threat
Potential for major accident
Problem needs immediate attention

127. Questions?

128. Thank
You!