oa Civil Engineering = Siviele Ingenieurswese - Evaluation of geo-hydrologic constants for the Far West Rand dolomitic formations



Following the sudden inrush of water into the West Driefontein mine in October 1968, an analysis based on the Theis non-equilibrium approach was carried out to determine the transmissivity and storativity of the dolomitic formations of the Bank Compartment which has an exposed areal extent of 156 km2 and a thickness of about 1000 m. Details of the analysis are given in the paper and the predicted response of the water table is compared with that obtained in the subsequent dewatering operations in the compartment which revealed several geologic inhomogeneities.


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