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Earth pressure balanced shield machines

Earth pressure balanced shield machines

This type of machine injects an additive into the face by means of pressure injection and agitates and mixes it with the soil mechanically by using a cutter or similar device, thereby improving the soil. The space between the face and the bulkhead of the shield is filled with this improved soil, to which pressure is applied using the driving force of the shield. The pressure is applied to the entire face, thereby maintaining the stability of the face while earth removal is controlled by the screw conveyor. Accordingly, the shield machine is compatible with a wide variety of ground types.
  • Earth pressure balanced shield machines
  • Earth pressure balanced shield machines
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