Leesburg Inter-Quarry Tunnel
Completed Inter-Quarry Tunnel connecting Leesburg Quarry's East and West Pits.
Inter-Quarry Tunnel break through at the West Pit.
Frontier-Kemper's tunnel excavation day crew in front of the newly-constructed Inter-Quarry Tunnel entrance.
Hand scaling being performed with scaling bars prior to bolt installation.
Frontier-Kemper's underground construction crew applying 2-6 in. of shotcrete to create the tunnel lining.
Portal Construction: A crane and manlift are used in conjunction to create complete sets of lattice girders.
An Epiroc Drill Jumbo boring holes to be loaded with explosives.
PROJECT DETAILS:
MARKET: Crushed Stone
MINE: Leesburg Plant
OWNER: Luck Stone Corporation
CONTRACTOR: Frontier-Kemper Constructors, Inc.
START DATE: April 2018
COMPLETED: May 2019
Inter-Quarry Tunnel Stats:
- 27 ft. high x 46 ft. wide
- Horseshoe Shaped
- 1,315 LF
- Ground Support: 15-ft Galvanized Treadbar & Fiber-Reinforced Shotcrete
SERVICES PERFORMED:
