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- W2240915487 abstract "A geotechnical investigation was performed to assist in the problems of recovery of large pillars formed during open stoping at the Warrego mine, N.T., Australia. The investigation included laboratory and in situ tests of rock properties; measureament of the primary rock stresses in the ore and in the country rock using the newly developed CSIRO triaxial stress gauge; and theoretical analysis of stresses and deformations around stopes and in pillars using photoelastic finite element and boundary integral equation methods. A program of monitoring mining-induced stresses and deformations was also begun, using newly developed instruments. The pre-mining stress measurements showed the presence of high horizontal compressive stesses with the major stress conformant with past folding in the area. The influence of the three-dimensional geometry on the mining-induced stresses was assessed from comparative finite element and analytical studies of idealized two-dimensional and three-dimensional models. For the Warrego mine, estimates of stability from two-dimensional analyses were found to be generally conservative with respect to those from three-dimensional analyses. Monitoring of pillar stresses and deformations during progressive firing of the uppermost pillar has shown changes similar to those predicted from the theoretical analysis." @default.
- W2240915487 created "2016-06-24" @default.
- W2240915487 date "1982-12-01" @default.
- W2240915487 modified "2023-09-25" @default.
- W2240915487 title "Geotechnical measurements and analyses of open stoping operations at warrego mine" @default.
- W2240915487 doi "https://doi.org/10.1016/0148-9062(82)91478-4" @default.
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