Mine roof support system for longwall recovery rooms and roof support under extreme pressure
Dillon’s patented CRIBPAC mine roof support system is used in the coal mining industry for longwall recovery rooms and for roof support. CRIBPAC has been NIOSH-tested to support up to 450 tons with a single column. CRIBPACS are constructed using fiber reinforced concrete donut cribs and are preassembled at the factory for quick and efficient installation underground, saving time and money. Each CRIBPAC has wooden lift handles and internal load transfer discs to ensure even load distribution. They are available in three configurations (4-high, 5-high and 6-high) and can be stacked for various height requirements. CRIBPACS are mineable, allowing the longwall to cut into the recovery room for quicker teardown and moving.
- Tested by NIOSH
- High support capacity
- Fully cuttable for mine through applications
- Reduces time for longwall move
- Offers moderate yet stable yield
- Will not shrink, rot or rust
- Easy to install with scoop or forklift
- Wood headboard and footboard supplies additional yield
- Maintains support with some lateral shift
CRIBPACs are preassembled at the factory in 4-high, 5-high and 6-high columns. They are shipped to the mine sites bundled together in groups of four. From there, they are transported underground and stacked with powered equipment to form columnal supports.