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dc.contributorUnited States. Army. Corps of Engineers. Omaha District.
dc.contributor.authorBragg, G. H. (George H.)
dc.date.accessioned2017-01-17T21:34:29Z
dc.date.available2017-01-17T21:34:29Z
dc.date.issued1977-04
dc.identifier.urihttp://hdl.handle.net/11681/20772
dc.descriptionMiscellaneous Paper
dc.descriptionAbstract: A laboratory testing program was undertaken to determine the effectiveness of a 1000-ft-lb impact wrench in transmitting torque to the anchor shells of various lengths of rock bolts. The investigation was limited to testing of one impact wrench on 2-, 4-, 6-, 8-, 10-, 12-, 16-, and 24-ft-length rock bolts. Results of torque tests indicated that transmitted torque generally decreases with increasing bolt length. It was recommended that impact wrenches to be used for torquing rock bolts be proof tested in the laboratory and in the field before acceptance.
dc.description.provenanceMade available in DSpace on 2017-01-17T21:34:29Z (GMT). No. of bitstreams: 1 MP-S-77-7.pdf: 4840804 bytes, checksum: 91e47f20f5f4952d4bdb533fb909cac3 (MD5) Previous issue date: 1977-04en
dc.publisherSoils and Pavements Laboratory (U.S.)
dc.publisherEngineer Research and Development Center (U.S.)
dc.relationhttp://acwc.sdp.sirsi.net/client/en_US/search/asset/1045749
dc.rightsApproved for public release; distribution is unlimited.
dc.sourceThis Digital Resource was created from scans of the Print Resource
dc.subjectImpact
dc.subjectRock bolts
dc.subjectTorque
dc.titleTorque transmission through rock bolts
dc.typeDOCUMENT


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