Pipe Ramming Services

Pipe ramming is a simple technique utilising a pneumatic hammer to drive steel casings through the ground from one pit to another. Rams of pipes up to and over 2m diameter and exceeding 70m in length have been achieved. During the basic operation, the correct size of rammer is positioned on the tracing or "H" Beam in the launch pit, the rammer and first casing length are connected directly or via ram cones, using adjustable cradles or air-bags, the assembly is aligned and levelled on target, the air supply is partly applied to start the rammer and slowly increased as the first casing enters the ground. Full power is applied when the skin friction on the casing is sufficient to overcome the back stroke of the piston, as each casing length is entered the rammer is removed, the next casing welded in place and the rammer replaced and restarted, on completion of the ram.