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Pipe ramming uses a pneumatic hammer to drive a steel casing through the ground from a launch pit to a reception pit. Typical casing diameters range from 150mm to 1.2m, and casing runs are rarely longer than 70m.
UMS often employs pipe ramming on the installation of larger diameter pipes under railways, roads and waterways where ground collapse could be catastrophic. As with all trenchless techniques, site disruption is minimal and there are potential cost savings from reduced reinstatement compared with traditional open cut trenching. |
