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Keywords: overcore
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Proceedings Papers
Determination of deformability parameters on overcores in heterogeneous non linear anisotropic rocks
Publisher: American Rock Mechanics Association
Paper presented at the The 35th U.S. Symposium on Rock Mechanics (USRMS), June 5–7, 1995
Paper Number: ARMA-95-0775
... conventional stress calculation models: INTRODUCTION Overcoring stress measurement techniques are based on the recovery principle where elastic strains are recovered as the stresses are relieved by detaching a certain volume of rock from the rock mass. For the doorstopper technique (Leeman, 1965...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 31st U.S. Symposium on Rock Mechanics (USRMS), June 18–20, 1990
Paper Number: ARMA-90-0413
... of: 1. Determining the repeatability of the overcoring results. 2. Assessing the effect of creep on the overcoring results. 3. Determining the stress at selected sites. The selected site was Room W36N 'B' at P.C.S. Mining Allan Division near Saskatoon, for the ease of access, availability...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the The 17th U.S. Symposium on Rock Mechanics (USRMS), August 25–27, 1976
Paper Number: ARMA-76-0231
...- tions by the overcoring technique, and rock mass displacement measurements by means of borehole and tape extensometers. Design data was greatly enhanced by unplanned pillar and roof failures. PILLAR STRENGTH DETERMINATIONS Overcoring measurements were made before, during, and after pillar failures...
