01345nam 2200385Ka 450 991069675190332120080715163317.0(CKB)5470000002381353(OCoLC)233823743(EXLCZ)99547000000238135320080714d1990 ua 0engtxtrdacontentcrdamediacrrdacarrierField verification of load transfer mechanics of fully grouted roof bolts[electronic resource] /by S.P. Signer[Washington, D.C.?] :U.S. Dept. of the Interior, Bureau of Mines,[1990]13 pages digital, PDF fileReport of investigations ;9301Title from title screen (viewed on July 11, 2008)."1990."Mine roof boltingTestingGrouting (Soil stabilization)Bolts and nutsFatigueMine roof boltingTesting.Grouting (Soil stabilization)Bolts and nutsFatigue.Signer S. P(Stephen P.)1418611United States.Bureau of Mines.GPOGPOBOOK9910696751903321Field verification of load transfer mechanics of fully grouted roof bolts3530542UNINA