Shaft Sinking, Equipping, Repair and Refurbishment
Harrison Western offers unmatched experience and proven cost effective solutions for the construction, refurbishing and repairing of hundreds of shafts making them safer and more cost efficient. We have dealt with difficult geological situations including water control and have sunk shafts from shallow depths of 700 feet to over 3000 feet.
Mine Development and Underground Construction
Mine design and development, a specialty of Harrison Western, includes the excavation and support of declines, inclines, cross-cuts, raises and coal mine slope development.
Underground Roof Support and Specialized Underground Construction
Harrison Western is capable of installing any support necessary in any typical mining situation (including rock bolts, timber sets and steel sets) as well as constructing difficult concrete support systems. Expertise includes the installation of roof bolts, which may be required in dome-type salt mines and other extremely high excavations.
Underground Water Control and Grouting
When heavy water in geological formations threatens to hinder shaft sinking and underground excavation, Harrison Western can install reliable pumping systems and use cement and chemical grouting. High pressure bulkheads can also be constructed to seal off large quantities of water.