This system detects obstacles and soil types in the front of the shield machine.
Advantages
The shield machine cutter face is equipped with an antenna that transmits and receives electromagnetic waves.
It can detect existing structures (culverts, manholes, piles, etc.) and obstacles (remaining piles, sheet piles, wide-flange beam steels, etc.) in front of the shield.
The characteristics of electromagnetic waves can be used to determine the soil type (humus, clay, silt sand, sandy soil).