Classé par:
Explorer
Negative alteration of noise level.
Possibility of gaining entry into a place or system. Possibility of gaining firsthand information. Also, physical point of entry.
Special (high alloy) steel plates mounted on the cutterhead that are designed to withstand high abrasion.
123456
A dimensional line in a tunnel, inside of which rock projections are not permitted.
Convex steel structures attached to both sides of a TBM that extend and anchor against the side of the tunnel walls to support the TBM while boring and react both the torque and thrust of the TBM.
The cutters located on the periphery of the cutterhead of a TBM or SBU.
123456
System allowing the position of the TBM to be determined. Depending on the diameter, either systems with a gyrocompass (interval measurement) or with laser technology (permanent measurement) are employed.
The width of a cut made by a single cutter.
Perforated manifold ring inside the nozzle of wet-mix shotcrete equipment through which high pressure air is introduced into the material flow.