Applied Research of Shaped Charge Technology
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文摘
For special requirements of penetrating rock, we have developed a shaped charge jet device, from which a rather uniform and wide jet can be generated. The mass of shaped charge explosive is less than 2.5kg. The profile and velocity of the jet are measured with an X-ray technique. We have simulated the formation and penetration process of the jet with a 2-D HELP code, which provides important reference data in designing the shaped charge. A series of penetration tests into rock at different strengths has been carried out. The penetration tests to the rock with a strength about 600kg/cm2 show that the average diameter of the hole entrances is 63.5 mm; the average penetration depth of the holes with internal diameters of more than 35 mm is about 1311 mm, the average total penetration depth of the holes is 1531 mm; the coning of the holes are less than 1.4 % . All the results of the tests indicate good penetrating performance.