Model Tests for Underground Ammunition Storage Facilities,
KUNGLIGA FORTIFIKATIONSFOEVALTNINGEN ESKILSTUNA (SWEDEN)
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This paper gives data on model tests scale 1100 in weak rock sand and hard rock granite made in Norway and Sweden. Scale depths up to 1 m . kg-13 and loading densities up to 100 kgm3 were tested. For higher loading densities the test in sand and granite gave conclusive results eg mass rather than strength is relevant for debris velocities. Scaled maximum velocity if given as a function of scaled depth. From this maximum velocity debris range can be calculated. Variation of LD ratios for the charge had minor influence on maximum velocity within investigated range.