PIPE RAMMING METHOD      PRESENTER(S) NAMES
What is Pipe Ramming?PIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       A pneumatic ha...
PIPE RAMMING APPLICATIONSPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       •Steel cas...
AdvantagesPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • Trenchless             ...
Preferred for Adverse Soil ConditionsPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                     ...
SWALLOWS LARGE OBSTRUCTIONSPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • Rock s...
CULVERT SWALLOWINGPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       An oversized casi...
TELESCOPING METHODPIPE RAMMING                           FOR LONGER DISTANCESCULVERT INSTALLATION AND REPLACEMENT         ...
METHOD IMPLEMENTATIONTrenchless Culvert Replacement Under Railways with the Pipe Ramming Method
RAM SITE LAYOUTPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                               Note: Follow...
SITE PREP: CASING PLACEMENTPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                        Rail sy...
STEEL CASING PREPPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       SOIL SHOE         ...
COLLETS AND RAMMERPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       Install Pushing C...
SPOIL REMOVALPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       Spoil removal for >30”...
PIPE RAMMING CASE STUDIESHIGHWAY & RAILROAD CULVERT INSTALLATION & REPLACEMENT WITH PIPE RAMMING
NEW INSTALLATION – ROCKVILLE, MNPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • P...
PIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT   NEW INSTALLATION – GRAND ISLAND, NE                                    ...
PIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT   NEW INSTALLATION – COUER D’ALENE, ID                                   ...
PIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT   NEW INSTALLATIONS – MARICOPA CTY, AZ                                   ...
TELESCOPING METHOD – ALASKAPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • Replac...
TELESCOPING METHOD – ALASKAPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • Replac...
TELESCOPING METHOD – ALASKAPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • Replac...
TELESCOPING METHOD – ALASKAPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • Replac...
TELESCOPING METHOD – ALASKAPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • Replac...
NEW INSTALLATION – DALTON HWY, AKPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • ...
NEW INSTALLATION – DALTON HWY, AKPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • ...
NEW INSTALLATION – DALTON HWY, AKPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT                                       • ...
HDD ASSIST METHODS     PIPE RAMMING
HDD RAM ASSIST                       • When problems arise while                         horizontal directional drilling  ...
FOUR METHODS                       •Washover casings          HDD ASSIST                       •Pull back assistPIPE RAMMI...
WASHOVER CASING METHOD          HDD ASSISTPIPE RAMMING                       • Used as a pilot for large HDD projects     ...
ON THE JOB: WASHOVER CASINGS                       • Hong Kong, China                        –Wash over casing          HD...
PULL BACK ASSIST METHOD          HDD ASSISTPIPE RAMMING                       • Assist HDD when pullback is not possible  ...
PULLBACK ASSIST          HDD ASSIST   CONNECTION METHOD STEELPIPE RAMMING                       Rammer is locked into stee...
PULLBACK ASSSIST                       CONNECTION METHOD HDPE                       (OPTION 1)          HDD ASSISTPIPE RAM...
PULLBACK ASSIST                       CONNECTION METHOD HDPE                       (OPTION 2)          HDD ASSISTPIPE RAMM...
ON THE JOB: PULLBACK ASSIST                       • Normangee, TX                        –Pullback Assist (pipe stuck for ...
ON THE JOB: PULLBACK ASSIST                       • Stewart, FL                        –HDPE Pullback Assist, pipe sat    ...
PIPE EXTRACTION METHOD          HDD ASSISTPIPE RAMMING                       • Remove stuck product pipe and bore      • P...
PIPE EXTRACTION          HDD ASSIST   CONNECTION METHOD FOR STEEL CASINGPIPE RAMMING                       Rammer is locke...
PIPE EXTRACTION          HDD ASSIST   CONNECTION METHOD FOR HDPEPIPE RAMMING                       Rammer is locked into s...
ON THE JOB: PIPE EXTRACTION                       • Orlando, FL                        –HDPE Pipe Extraction          HDD ...
DRILL STEM RECOVERY METHOD          HDD ASSISTPIPE RAMMING                       • Recover expensive stuck drill rod      ...
ON THE JOB: DRILL STEM RECOVERY          HDD ASSISTPIPE RAMMING
RECOMMENDED HAMMERS                                                                                                      C...
THANK YOU FIRST NAME LAST NAME PRESENTER TITLE E: info@hammerheadmole.com P: 800.331.6653 | INT: +1.262.567.8833 | F: 262....
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The Pipe Ramming Method

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  • When installing a steel pipe, it is usually a simple matter of inserting a set of collets into the pipe which allow the hammer to lock into the casing. In some instances, the pipe may need to be reinforced, or a fabricated adapter may be needed to match the size of the available collets to the size of the product pipe.
  • When installing HDPE pipe, an adapter will be needed to allow the connection of the hammer to the pipe. The easiest is a flange adapter that is fused to the pipe string, then a steel casing is added to the flange adapter, and the whole assembly is bolted up. This provides a stub of casing for the collets, which in turn, lock the hammer.
  • A second alternative is to fabricate a sleeve which should just fit over the HDPE. The sleeve is then bolted into the HDPE pipe. At the end of the sleeve is a plate that will butt up against the back of the HDPE. Then a casing is welded and gusseted to the plate to provide a receiver for the collets and ramming tool.
  • The adapter for steel casing is the easiest; it is simply a piece of casing, which need not be the same size as the pipe being installed, it can be sized to whichever set of collets is most convenient. The piece of casing is welded on top of the product, then gussets are added for increased strength. The collets will go on the front side of the arrangement so that the hammer is pounding the pipe out of the bore.
  • For HDPE, a steel sleeve will need to be fabricated to fit more or less snugly over the HDPE, then bolted to the pipe. A piece of casing is welded to the top of the sleeve just like for the steel extraction adapter, to act as a receiver for the ramming tool and collets.
  • The Pipe Ramming Method

    1. 1. PIPE RAMMING METHOD PRESENTER(S) NAMES
    2. 2. What is Pipe Ramming?PIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT A pneumatic hammer installs an open ended steel casing that is cleaned out during and after completion of pipe installation.
    3. 3. PIPE RAMMING APPLICATIONSPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT •Steel casing installation •Culvert replacement •Ram and swallow •Slick boring •Piling •HDD Assist –Wash-over casings –Stuck Bores –Removal of drill stem –Hydro-locked casings
    4. 4. AdvantagesPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Trenchless • Able to swallow rock as large as the inside diameter of the casing • Method does not remove soil until casing is installed • Minimizes voids –Roads –Railroads • Reduced soil compaction
    5. 5. Preferred for Adverse Soil ConditionsPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Free flowing sand • Cobble conditions • Large rock formations • Excessive ground water
    6. 6. SWALLOWS LARGE OBSTRUCTIONSPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Rock swallowed during ram • Spoil removed post ram 54” Casing
    7. 7. CULVERT SWALLOWINGPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT An oversized casing is rammed over existing culvert. After installation is complete, old culvert and spoil is removed. Steel casing can serve as the drainage culvert or as a carrier pipe for another pipe inserted within.
    8. 8. TELESCOPING METHODPIPE RAMMING FOR LONGER DISTANCESCULVERT INSTALLATION AND REPLACEMENT An oversized pipe is rammed over the existing culvert until production ceases and is cleaned out. Further progress is made with smaller casings installed within the oversized pipe in the same manner.
    9. 9. METHOD IMPLEMENTATIONTrenchless Culvert Replacement Under Railways with the Pipe Ramming Method
    10. 10. RAM SITE LAYOUTPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT Note: Follow local regulations for sloping or shoring of pit.
    11. 11. SITE PREP: CASING PLACEMENTPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT Rail system I-beam Pipe Mule™ Leveling System
    12. 12. STEEL CASING PREPPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT SOIL SHOE LUBRICATION Steel Casing Internal Shoe External Shoe Reinforces lead casing and provides an Supplies lubricating fluid to OD and ID of annulus for lubrication. casing during installation.
    13. 13. COLLETS AND RAMMERPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT Install Pushing Collets/Collars Install Rammer Collets and collars help to distribute the The rammer is locked into the collets when ramming force to the face of the pipe. the tool is started. The collets also lock the rammer into place.
    14. 14. SPOIL REMOVALPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT Spoil removal for >30” and/or Spoil removal <30” Casing large spoil/culverts Seal kit Manual excavation, HDD culvert cleaning Air and/or water pressure. Seal kit for air tools, jet washing, auger boring wherever pressure removal. applicable.
    15. 15. PIPE RAMMING CASE STUDIESHIGHWAY & RAILROAD CULVERT INSTALLATION & REPLACEMENT WITH PIPE RAMMING
    16. 16. NEW INSTALLATION – ROCKVILLE, MNPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Project –2 – drainage culverts under railroad • Pipe sizes –1-60” Casing –1-32” Casing • Equipment –24” Rammer • Ram distance –1 @ 90’ –1@ 195’ • Free flowing sand • Holding grade
    17. 17. PIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT NEW INSTALLATION – GRAND ISLAND, NE • Project –1 – drainage culvert under railroad • Pipe sizes –1-24” Casing • Equipment –24” Rammer • Ram distance –1 @ 250’ • Free flowing sand with loose coal dust and other materials • Installed with 2% grade
    18. 18. PIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT NEW INSTALLATION – COUER D’ALENE, ID • Project –2 – drainage culverts under RR and Highway • Pipe sizes –2 - 48” casings • Equipment –23” Rammer • Ram distance –1 @ 190’ –1@ 195’
    19. 19. PIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT NEW INSTALLATIONS – MARICOPA CTY, AZ • New culvert installation under rail bed. • 84” steel casing • 24” HammerHead Pipe Rammer
    20. 20. TELESCOPING METHOD – ALASKAPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Replacement of 84” dia. culvert drain with telescoping method • 96” steel casing, 164 feet. • 24” HammerHead Pipe Rammer Collapsed 7’ casing, 164 feet long
    21. 21. TELESCOPING METHOD – ALASKAPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Replacement of 84” dia. culvert drain with telescoping method • 96” steel casing, 164 feet. • 24” HammerHead Pipe Rammer First section of pipe installed.
    22. 22. TELESCOPING METHOD – ALASKAPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Replacement of 84” dia. culvert drain with telescoping method • 96” steel casing, 164 feet. • 24” HammerHead Pipe Rammer Swallowing and removing sections.
    23. 23. TELESCOPING METHOD – ALASKAPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Replacement of 84” dia. culvert drain with telescoping method • 96” steel casing, 164 feet. • 24” HammerHead Pipe Rammer Telescoping 60 feet down sized sections.
    24. 24. TELESCOPING METHOD – ALASKAPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Replacement of 84” dia. culvert drain with telescoping method • 96” steel casing, 164 feet. • 24” HammerHead Pipe Rammer Trenchless telescoped pipe.
    25. 25. NEW INSTALLATION – DALTON HWY, AKPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Drainage culvert • Glacial til/new road bed • Service hwy between Prudhoe Bay oil reserves & Fairbanks
    26. 26. NEW INSTALLATION – DALTON HWY, AKPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Project –1 – drainage culvert under service highway • Pipe sizes –1 - 36” casing • Equipment –24” Rammer • Ram distance –1 @ 160’
    27. 27. NEW INSTALLATION – DALTON HWY, AKPIPE RAMMINGCULVERT INSTALLATION AND REPLACEMENT • Project –1 – drainage culvert under service highway • Pipe sizes –1 - 36” casing • Equipment –24” Rammer • Ram distance –1 @ 160’
    28. 28. HDD ASSIST METHODS PIPE RAMMING
    29. 29. HDD RAM ASSIST • When problems arise while horizontal directional drilling HDD ASSIST (HDD) costs begin to add up with each tick of the clock.PIPE RAMMING • Quick reaction time and expert technical support are critical to salvaging a bore gone bad. • The percussive power of pipe rammers can help free stuck product pipes, drill stems, and help remove product pipes on failed bores.
    30. 30. FOUR METHODS •Washover casings HDD ASSIST •Pull back assistPIPE RAMMING •Pipe extraction •Drill stem recovery
    31. 31. WASHOVER CASING METHOD HDD ASSISTPIPE RAMMING • Used as a pilot for large HDD projects • Makes a guide down hole for mud motors • Casings are rammed through difficult soil • Casing provides a path for drill fluid conditions to rock or solid soil recycling and reduces the loss of fluids in surface soils
    32. 32. ON THE JOB: WASHOVER CASINGS • Hong Kong, China –Wash over casing HDD ASSIST • Pipe sizesPIPE RAMMING –2 – 54” casings • Equipment –24” Rammer • Ram distance –2 @ 66’
    33. 33. PULL BACK ASSIST METHOD HDD ASSISTPIPE RAMMING • Assist HDD when pullback is not possible • Percussive power frees immobilized and machine still has rotation capabilities product pipes. • Rammer attached to product pipe
    34. 34. PULLBACK ASSIST HDD ASSIST CONNECTION METHOD STEELPIPE RAMMING Rammer is locked into steel casing via collets. Steel casing is installed using pullback force of HDD and percussive force of the rammer.
    35. 35. PULLBACK ASSSIST CONNECTION METHOD HDPE (OPTION 1) HDD ASSISTPIPE RAMMING Rammer is locked into steel casing via collets. The steel casing is connected to the HDPE product pipe via steel to HDPE flange compression kit. HDD pull force is used in conjunction with the rammer to install the pipe.
    36. 36. PULLBACK ASSIST CONNECTION METHOD HDPE (OPTION 2) HDD ASSISTPIPE RAMMING Rammer is locked into steel casing via collets. Steel casing is welded to steel ring that is flush with HDPE face, and welded to steel sleeve. Steel sleeve is bolted to HDPE product pipe. HDD pull force is used in conjunction with the rammer to install the pipe.
    37. 37. ON THE JOB: PULLBACK ASSIST • Normangee, TX –Pullback Assist (pipe stuck for 4 HDD ASSIST days before start of assist) • Reason for pullback failure –PIPE RAMMING excessive flooding in area caused collapsed entry pit and hole. • HDD Rig –500,000 lb pullback • Pipe –2,800’ of 36” casing • Equipment –24” Rammer
    38. 38. ON THE JOB: PULLBACK ASSIST • Stewart, FL –HDPE Pullback Assist, pipe sat HDD ASSIST for more than two weeks before assist could be started due toPIPE RAMMING excessive hurricane season. • HDD Rig –1.2 M lb custom drill rig • Pipe size –4,500’ of 24” HDPE pipe 80’ deep • Equipment –24” Rammer
    39. 39. PIPE EXTRACTION METHOD HDD ASSISTPIPE RAMMING • Remove stuck product pipe and bore • Percussive action along with static again tension pulls product pipe, removing it • Rammer is attached to product pipe by from the bore fabricating an adaptor
    40. 40. PIPE EXTRACTION HDD ASSIST CONNECTION METHOD FOR STEEL CASINGPIPE RAMMING Rammer is locked into steel casing that is welded onto the product casing. Static pull force is used in conjunction with the rammer to extract the product casing.
    41. 41. PIPE EXTRACTION HDD ASSIST CONNECTION METHOD FOR HDPEPIPE RAMMING Rammer is locked into steel casing that is welded onto the steel sleeve. Steel sleeve is bolted to HDPE product pipe. Static pull force is used in conjunction with the rammer to extract the product casing.
    42. 42. ON THE JOB: PIPE EXTRACTION • Orlando, FL –HDPE Pipe Extraction HDD ASSIST • Pipe sizePIPE RAMMING –850’ extraction of 30” HDPE pipe • Equipment –16” Rammer
    43. 43. DRILL STEM RECOVERY METHOD HDD ASSISTPIPE RAMMING • Recover expensive stuck drill rod • Kinetic energy is used to assist in • Rammer is attached the to drill rod by pulling or pushing rod out of the ground fabricating an adaptor with the assist of static tension
    44. 44. ON THE JOB: DRILL STEM RECOVERY HDD ASSISTPIPE RAMMING
    45. 45. RECOMMENDED HAMMERS Calculated Rammer Impact Rate Pipe Diameter HDD Class Impact Force Size BPM Range at 1 ft/min* HDD ASSIST 7” 24,000 lbs 295 184,000 lbs 8” – 16”PIPE RAMMING 24,000; 33,000; 8” 223 252,000 lbs 8” – 24” 50,000 lbs 33,000; 50,000; 12” 271 744,000 lbs 12” – 36” 80,000 lbs 16” 80,000 lbs 231 1,094,000 lbs 12” – 48” 80,000; 20” 190 1,740,000 lbs 20” – 54” 150,000 lbs 150,000 lbs 24” 177 2,020,000 lbs 24” – 72” and larger *The numbers shown here are based on calculation and are for comparative purposes only between various models of HammerHead Rammers. The numbers are not intended for engineering applications.
    46. 46. THANK YOU FIRST NAME LAST NAME PRESENTER TITLE E: info@hammerheadmole.com P: 800.331.6653 | INT: +1.262.567.8833 | F: 262.567.5068 W: www.hammerheadtrenchless.com
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