I’m an interesting person/
Just joined here but gna ROCK 👀


Coal transfer system (Conveyor System): This system is used to move excavated soil and stones from the excavation site outside the tunnel. This system usually consists of conveyors that move the soil and rocks towards the tunnel exit.

A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels. Tunnels are excavated through hard rock, wet or dry soil, or sand, each of which requires specialized technology.