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Keywords: internal diameter
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Proceedings Papers

Paper presented at the Drilling and Rock Mechanics Symposium, January 23–24, 1963
Paper Number: SPE-497-MS
... and internal diameters, respectively. K is a constant function of the properties of the permafrost used and the characteristics of a reference pile. Eq. l was partly obtained from Fig. l, which shows the reduced penetrations ~ of piles as a function of their impact velocities, the piles having various masses...

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