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Microtunneled Pilot Thrusting

The hydraulically driven thrust boring machine thrusts steel casing pipes into the earth. Inside these casing pipes is a drilling auger, which also serves to convey excavation material into the starting pit. In the starting pit, the casing pipes are welded together and the auger is prolonged piece-by-piece.

Thrust boring also works in hard ground. For drill jobs that must be highly precise, we drill a pilot bore followed if necessary by a widening bore.

Microtunneling and PilotThrusting

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