By A. Roberts
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Sei. 6 , 2 7 7 - 8 4 (1969). 51. MELNIKOV, Ν . V . , Influence of charge design on the results of blasting, Int. Symp. , Univ. of Missouri, Rolla, 1961, pp. 147-55, Pergamon, New York, 1962. 52. JOHNSSON, G . , The influence of stemming on the efficiency of blasting, using 36 mm shot-holes, Int. Symp. , Univ. of Missouri, Rolla, 1961, 1, 9 1 - 1 0 2 , Pergamon, New York, 1962. 53. CROWLEY, Β . K . , GLENN, H . , KAHN, J. , and THOMSEN, J. , Analysis of Jorum containment, Int. J. Rock Mech. Min.
0 I P is assumed. 32 Rock Excavation by Blasting—/ References and Bibliography: Chapter 1 1. FISCHER, R . , D'ANDRÉA, D . , and FOGELSON, D . E . , Effects of Explosive Properties on Free-surface Displacement Pulses and Crater Dimensions. U S Bur. , Rep. Invest. N o . 7407, 1970. 2. SADWIN, L. D . , STRESSAU, R . , PORTER, S . , Nonideal detonation of ammonium nitratefuel oil mixtures, Proc. 3rd Symp. on Detonation, Princeton, NJ, I960, pp. 309-25. 3. BRIDGEMAN, P . , The Physics of High Pressure, B .
Two alternatives are available. One uses rocket-type fuels, altered to behave as liquid explosives, and the other uses a heavy slurry of metallized ammonium nitrate. In the oil-shale experiments a charge of 216 1 of N G I was poured through a hose into the injection shot-hole. The N G I was displaced into the rock by a hydrostatic head of water, the N G I - w a t e r interface being monitored by hydrometer. Offset holes were sampled during the injection process to observe the N G I migration pattern.
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