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Showing 1 to 2 of 2 for “"DRILLING EFFECT"”.

  1. Statistical study of rock drilling by hypervelocity jets from explosive shaped charges

    <p>"The drilling effect in rock of hypervelocity jets from explosive shaped charges was investigated experimentally to supplement a rapid excavation concept. The effects of the design factors of the charge and the mechanical properties of eight rock types were studied. Experiments were both …

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