The original Fibercrib® continues to be the best fiber crib block manufactured today! Made from controlled blending, mixing, and forming techniques, Fibercrib® fiber crib blocks offer superior strength and stiffness to support your roof and floor. Our 2 sizes of Fibercrib® blocks offer versatile stacking combinations while providing superior roof support when compared to circular or other rectangular crib blocks.
Call for a free quote, see how the original Fibercrib® stacks up in terms of cost and effectiveness.
A longwall section headgate entry which simultaneously serving as its belt entry was driven off sight for a length of 320 feet. Once the error was discovered the entry had to be re-mined by taking a slab cut off the opposite side rib. This led to the entry being overly wide by 36 inches. This important entry had to have supplemental support installed so as to protect the entry from forward riding abutment pressures as the longwall face retreated into the affected area and to keep the roof from collapsing when the longwall face was in the immediate area.
Burrell assisted Mine Engineering and Management with technical data and a detailed bill of materials to accomplish the project using 4” x 8” x 23” Fibercrib®. Several truckloads of Fibercrib® were delivered in a timely manner so that all of the materials could be delivered underground and then set in place on the identified idle shift. The belt entry was “narrowed” by building a false rib line using Fibercrib®. The mining process was never interrupted during construction. The entry was never a problem as the longwall panel approached and mined through the affected area.
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