Excavation Category
Temporary mine openings.
Permanent mine openings, water tunnels for hydro-electric
projects, pilot tunnels, drifts and headings for large excavations.
Storage rooms, water treatment plants, minor road and railway
tunnels, surge chambers and access tunnels in hydro-electric
project.
Underground power station caverns, major road and railway
tunnels, civil defense chamber, tunnel portals and intersections.
Underground nuclear power stations, railway stations, sports and
public facilities, underground factories.
Excavation CategoryTemporary mine openings.Permanent mine openings, water tunnels for hydro-electricprojects, pilot tunnels, drifts and headings for large excavations.Storage rooms, water treatment plants, minor road and railwaytunnels, surge chambers and access tunnels in hydro-electricproject.Underground power station caverns, major road and railwaytunnels, civil defense chamber, tunnel portals and intersections.Underground nuclear power stations, railway stations, sports andpublic facilities, underground factories.
การแปล กรุณารอสักครู่..
