Category: Construction
Machiery
Summary: Excavating
tunnels in rock
Road headers are specialized excavation machines designed for tunneling and mining in soft to medium-hard rock. They are particularly effective in creating tunnels with specific shapes and dimensions, making them crucial for various underground construction projects.
Function: Road
headers employ a rotating cutting head equipped with picks or cutting tools to
excavate the rock. The excavated material is then typically loaded onto a
conveyor system and removed from the tunnel.
Design: These machines are self-propelled, often on tracks for maneuverability, and feature a boom-mounted cutting head that can be articulated to cut different profiles. They also have systems to support the tunnel roof and sides as excavation progresses.
Applications Road headers are used in:
* Tunneling for roads, railways, and
utilities
* Mining for coal and other minerals
* Creating underground storage facilities
* Excavating underground stations and caverns
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