... is computed. Finally, the dynamic response of the rock masses due to the explosion is modeled. The modeling results are compared with the test results and empirical formulas. Upstream Oil & Gas formula charge chamber reservoir geomechanics field explosion test computational model Reservoir...

... 1964, Obert & Duvall 1967, Bieniawski 1968, Wagner 1974, Hustrulid 1976). These experimentally-derived relationships between coal strength, and specimen shape and size were then used to develop formulas for estimating pillar strength in the field. A further refinement of this empirical technique...

... of symmetry. A new elastic theory for the test proposed recently by Wei and Chau (1999) will be discussed and compared to experimental results. The tensile strength interpreted from the present analysis is found comparable to the formula proposed by Bortolotti (1988) for a/b > 0.2 and agrees well...

... borings through the overburden and wire-line coring in the rock. Laboratory test data for the rock is briefly discussed. The design axial load capacities, which were computed using 6 different dynamic design formula, are compared with the actual capacity measured by two field load tests on the Pineville...