AUGERING,
BORING &
PIPE RAMMING
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Auger boring and pipe ramming are well-suited for all types of trenchless installations, especially over shorter crossing distances.
These tunneling technologies have a wide range of applications, including crossings under roads, railways, rivers, congested areas, and sensitive environmental areas. They are also effective alternatives to Horizontal Directional Drilling for projects with confined footprints that do not allow for an entry and exit angle.
Our experience team has developed a reputation for excellence in trenchless tunneling. We utilize a variety of established tools and techniques — including proprietary technologies — to address each project’s unique challenges.
FEATURED SOLUTIONS
Horizontal Down the Hole (DTH) Drilling Demonstration
Our Down the Hole (DTH) boring system is a robust and cost effective system that can tackle challenging soil conditions such as bedrock or boulders.
How the Advanced Hydraulic Hammer Works
Our advanced Hydraulic Hammer allows for efficient, economical installation of large diameter steel pipe where other boring or tunneling methods are not feasible.
Horizontal Auger Boring
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In addition to installing steel casings, our Horizontal Augering machines are frequently employed in cleaning out casings and culverts. They can also be used in conjunction with a Small Boring Unit (SBM) for boring 610+ mm diameter holes (24+ in) through solid rock, which is done in unison with our disc cutter heads.
(492 ft)
(12 in to 72 in)
Pneumatic Pipe Ramming
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Pipe Ramming is used in a wide variety of soil types including gravel, cobble or sand. A pneumatic hammer is attached to the back of the casing pipe and driven through the material at any angle: from horizontal to vertical. The material is cleaned out of the pipe using an auger boring machine.
(492 ft)
(12 in to 144 in)
Guided Boring
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Our Guided Boring Machine (GBM) is extremely versatile, and is commonly used when line and grade accuracy is critical in displaceable soil. The GBM can be used in conjunction with auger boring or pipe ramming methodologies. The pipe installation involves a two-step process where launch and reception shafts are strategically located to minimize surface disruption. A pilot tube with a theodolite guidance system is then pushed through the ground at the precise grade and alignment specified in the design into the reception shaft. A reaming head is welded to the pilot tube and the casing and the pilot tube are used as a guide to install casing.
(492 ft)
(12 in to 144 in)
Down the Hole Hammer
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A pneumatic hammer is attached to the inside edge of the casing. The front of the Down the Hole (DTH) breaks cobble, boulders, and even solid rock into small pebbles or dust. The spoil makes its way through the hammer and into the casing, where it is removed by airway augers.
(492 ft)
(8 in to 48 in)
Slip Boring
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Slip boring is commonly used for installing oil & gas pipelines without leaving casing in the ground. Product pipe is welded to steel casings and either pushed or pulled through the ground in sections. The casing is cut off and removed, leaving just the product pipe.
(492 ft)
(2 in to 42 in)
Surface Casing (Conductor Barrel)
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Surface casing serves as a starter casing for horizontal directional drilling, guiding the drill into overburden at the entry point. Steel casing is hammered into the ground at the required angle (ranging from 9° to 30°), and spoil is removed by an auger.
(656 ft)
Tunnel Boring
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Tunnel Boring is used to excavate tunnels with a circular cross section. This method can bore through hard rock, sand, and almost anything in between. A closed-face attachment is available for boring in unstable ground conditions. Tunnel Boring can be supplemented with a Pipe Jacking System to install pipelines within strict alignment and grade tolerances. A jacking frame pushes the Tunnel Boring Machine (TBM) into the ground, then the pipe is jacked into place behind the TBM as the excavation advances.
(984 ft)
(up to 49 ft)
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With over 40 years of experience, The Tunneling Company is one of North America’s leading providers of fit-to-purpose tunneling solutions.
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