West Driefontein Gold Mine, Vaal Reefs – No 9 Shaft. Transvaal RSA. 1981-1983 The shaft was sunk through 236 m of Transvaal Dolomite Formation. No pre-grouting was undertaken from surface, and pilot drilling and cement grouting from shaft bottom during sinking did not stop the serious inflow of water. In 1981 two badly fractured areas […]
June 26, 1983
Elandsrand Gold Mine – Shaft Sealing – Carletonville, RSA, 1979 In 1979, the sinking operation of the M/M shaft was delayed due to excessive high volume water ingress at pressures exceeding 700 psi (about 50 bar). Grouting of this shaft was the first high pressure underground water ingress problem solved with SCEM66 (now known as […]
June 26, 1979
