January 2001
Volume 53    Issue 1

Role of water in the stability of a shallow, underground mine

Mining Engineering , 2001, Vol. 53, No. 1, pp. 20-25
Sheik, A.K.; Pariseau, W.G.


ABSTRACT:
During the design and operation of a mine, much attention is focused on methods of dealing with the effects of groundwater (Bates, 1982; Lawson, 1982; Trent and Harrison, 1982; Call, 1992; Singh, 1992). The Burgin, Ontario and Escalante mines are examples of “wet” mines in Utah. At the Escalante mine, located 68 km (42 miles) west of Cedar City, UT, on the west side of the Escalante valley, a pilot mining and dewatering effort required pumping 19 m3/min (5,000 gpm) of water to draw down the water table to below mining levels (Hogan et al., 1982). Drifting through dewatered ground provided stable ground conditions. The Burgin Mine, located in the Tintic Valley west of Eureka, UT, has water temperatures measuring 63??to 66??C (145??to 150??F) (Cogan, 1975). Pumping to lower the water table was in excess of 34 m3/min (9,000 gpm). A nonuniform drawdown of the water table at the Burgin Mine was attributed to fissures and joints along the East Tintic fault.


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