Guided Pipe Ramming
Guided Pipe Ramming has been becoming an increasingly popular trenchless method as it is effective in a wide variety of ground conditions proven difficult with other conventional methods such as auger boring. This method combines the line and grade accuracy of the pilot tube installation with the power of a compressed air pneumatic pipe rammer affixed to the rear of the casing.
- Accuracy: The pilot tube installation ensures line and grade accuracy prior to advancing the steel casing with the pneumatic hammer.
- Cost Reduction: Longer crossings with smaller casing diameters can be considered on the project as the alignment is pre-determined by the installation of the pilot tubes.
- Ground Conditions: The pilot tube installation is un-affected by pressurized ground conditions. Since pipe ramming maintains a pipe plug during the installation process, additional capabilities can be considered as material is not being removed until the installation is complete.
- Pilot tubes are accurately installed from the launch shaft to the receiving shaft with tooling selected based on the ground conditions encountered.
- The pilot tubes are connected to the steel casing by a Weld-On Ramming Head design specifically for pilot tube guided ramming.
- The steel casing is advanced by the hammering action of the pneumatic hammer sized for the installation and anticipated ground conditions.
- Pilot tubes are removed at the reception shaft, cleaned, and placed into storage racks for reuse.
- Once the steel casing has advanced to the reception shaft, the material is removed from the inner diameter of the casing pipe.
To learn more about our versatile equipment for guided pipe ramming, see the equipment section or contact one of our experienced sales representatives for more information.
Akkerman was recently featured in a Trenchless Australasia article. Directhitt Trenchless has completed a project for Laing O’Rourke at Sydney’s Central Station by installing critical electrical infrastructure for the new Sydney Metro. As part of the biggest upgrade to Sydney’s busiest railway station in decades, Directhitt Trenchless were contracted to supply and install four DN […]