TUNNELING – AUGERING, BORING AND PIPE RAMMING
WHICH INSTALLATION METHOD IS BEST SUITED TO MY PROJECT?
There are a number of factors that come into play. developed the following chart as a rough guide. For an accurate, professional assessment, please contact a Terranaut Technology
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Crossing Length –Product Line Diameter-Soil/Formation Type-Required Precision (Alignment and Grade)-
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Product Line/Casing Material (eg. Steel vs Polymer)
| SERVICSE |
EST SUITED TO: |
PRODUCT |
CONTINUOUS |
|
Longer crossings at deeper depths for a wide range of product line diameters. Most soil types/ formations. |
Max 152cm (60”) |
Max 2,500m (8202′) |
|
|
Direct Pipe |
Simultaneous bore hole excavation and installation in nearly all ground conditions. |
Max 152cm (60”) |
Max 1,000m (3280′) |
|
Horizontal Auger Boring |
Installing and cleaning steel casings 305 mm – 1.8 m diameter (12” – 72”). Boring through solid rock. |
60 to 182cm (24” to 72”) |
25 to 100m (82′ to 328′) |
|
Pneumatic Pipe Ramming |
Installation in wide variety of soil types, at any angle. |
60 to 365cm (24” to 144”) |
50 to 175m (164′ to 574′) |
|
Guided Boring |
Tunneling applications requiring grade and alignment precision. |
30 to 365cm (12” to 144”) |
50 to 175m (164′ to 574′) |
|
Down The Hole Hammer |
Drilling through rock, large cobbles and overburden. |
60 to 365cm (24” to 144”) |
50 to 125m (164′ to 410′) |
|
Slip Boring |
Situations where it is preferable not to leave steel casings in the ground. |
5 to 106cm (2” to 42”) |
25 to 150m (82′ to 492′) |
|
Tunnel Boring/Pipe Jacking |
Installations with strict alignment and grade tolerances. |
1 to 15m (3′ to 49′) |
200m to 800m (656′ to 2624′) |
|
Horizontal Directional Boring |
Thrusting through challenging formations such as shale and sandstone. |
Max 711mm |
Max 200m |