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dc.contributor.authorBenert, Robert.-
dc.descriptionTechnical Report-
dc.descriptionSummary: During March and April, 1955, and February and March, 1956, shaped charges were fired into permanently frozen ground, rock, and ice at Fort Churchill, Manitoba, in order to determine the feasibility of using shaped charges to produce a hole in frozen ground that can be loaded with other explosives to form a crater adequate for use as a foxhole. Charges tested were : standard U. S. Army shaped charges M3 (40 lb) , M2A3 (15 lb) , and M2 (10 lb) ; two experimental shaped charges furnished by the Terminal Ballistics Laboratory of Aberdeen Proving Ground, Maryland (20 lb and 5 lb) ; and a 2 and 3/4-oz jet tapper manufactured by Du Pont. The M2, M2A3, and M3 gave holes which met the requirements - 5 ft minimum depth and 2-in minimum diameter, but the M3 is undesirable for the purpose because of weight, extremely loud noise, blast effect, and shrapnel-throwing characteristics. Both experimental charges gave holes that were too small for the purpose, The jet tapper produced too small a hole, but the excellent results for its size suggest that the same method of manufacture should be tried for experimental charges, in order to reduce the weight required.-
dc.publisherU.S. Army Snow, Ice, and Permafrost Research Establishment.-
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relation.ispartofseriesSIPRE report ; 45.-
dc.rightsApproved for public release; distribution is unlimited.-
dc.sourceThis Digital Resource was created from scans of the Print Resource-
dc.subjectFrozen ground-
dc.subjectFrozen ground mechanics-
dc.subjectFrozen soils-
dc.subjectExplosion effects-
dc.subjectBlast effects-
dc.subjectPenetration tests-
dc.subjectShaped charges-
dc.titlePenetration of shaped charges into frozen ground-
Appears in Collections:Technical Report

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