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Proceedings Papers

Statistical Assessment of Performance of Cable Bolts Under Axial Loading

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D. Li, H. Masoumi, S. Saydam, P. Hagan
Paper presented at the 5th ISRM Young Scholars' Symposium on Rock Mechanics and International Symposium on Rock Engineering for Innovative Future, December 1–4, 2019
Paper Number: ISRM-YSRM-2019-013
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View Paper titled, Statistical Assessment of Performance of Cable Bolts Under Axial Loading
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Proceedings Papers

Parametric Studies of Cable Bolts Using a Modified Short Encapsulation Pull-Out test

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D. Li, H. Masoumi, S. Saydam, P. Hagan
Paper presented at the 14th ISRM Congress, September 13–18, 2019
Paper Number: ISRM-14CONGRESS-2019-239
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View Paper titled, Parametric Studies of Cable Bolts Using a Modified Short Encapsulation Pull-Out test
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Proceedings Papers

An Improvement to Unified Size Effect Law for Intact Rock

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H. Masoumi, A. Arefi, P. Hagan, H. Roshan, M. Sharifzadeh
Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0158
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View Paper titled, An Improvement to Unified Size Effect Law for Intact Rock
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Proceedings Papers

Instability Characteristics Analysis of the Stress Arch in Key Roof Blocks During Shallow Horizontal Thick Coal Mining

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Y. H. Zhao, S. R. Wang, P. Hagan, Z. S. Zou
Paper presented at the 4th ISRM Young Scholars Symposium on Rock Mechanics, May 10–13, 2017
Paper Number: ISRM-YSS-2017-009
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View Paper titled, Instability Characteristics Analysis of the Stress Arch in Key Roof Blocks During Shallow Horizontal Thick Coal Mining
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Proceedings Papers

Investigation into the Effect of Length to Diameter Ratio on the Point Load Strength Index of Gosford Sandstone

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M. Forbes, H. Masoumi, S. Saydam, P Hagan
Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-639
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View Paper titled, Investigation into the Effect of Length to Diameter Ratio on the Point Load Strength Index of Gosford Sandstone
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Proceedings Papers

Bent Beam Coupon Testing for the Investigation of Stress Corrosion Cracking in Rockbolts

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D. Vandermaat, E. Elias, S. Saydam, A. Crosky, P. Hagan, P. Craig
Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-109
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View Paper titled, Bent Beam Coupon Testing for the Investigation of Stress Corrosion Cracking in Rockbolts
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Proceedings Papers

Experimental Investigation into the Mechanical Behavior of Gosford Sandstone at Different Sizes

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H. Masoumi, M. Bahaaddini, G. Kim, P. Hagan
Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7154
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View Paper titled, Experimental Investigation into the Mechanical Behavior of Gosford Sandstone at Different Sizes
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Proceedings Papers

Experimental Study of the Shear Behavior of Rock Joints Under Constant Normal Load and Constant Normal Stiffness Conditions

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M. Bahaaddini, J. Saymontry, H. Masoumi, P. Hagan
Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7384
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View Paper titled, Experimental Study of the Shear Behavior of Rock Joints Under Constant Normal Load and Constant Normal Stiffness Conditions
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Proceedings Papers

A Review of Ground Support Systems Performance Subjected to Dynamic Loading

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L. Li, P. Hagan, S. Saydam
Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-174
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View Paper titled, A Review of Ground Support Systems Performance Subjected to Dynamic Loading
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Proceedings Papers

The Load Transfer Mechanics of Fully Grouted Cable Bolts: A Theoretical Analysis

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J. Chen, S. Saydam, P. Hagan
Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-171
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View Paper titled, The Load Transfer Mechanics of Fully Grouted Cable Bolts: A Theoretical Analysis
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Proceedings Papers

Numerical Investigation of Asperity Degradation in the Direct Shear Test of Rock Joints

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M. Bahaaddini, P. Hagan, R. Mitra, B. K. Hebblewhite
Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-060
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View Paper titled, Numerical Investigation of Asperity Degradation in the Direct Shear Test of Rock Joints
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Proceedings Papers

Environmental Characterization of the Stress-Corrosion Cracking of Rockbolts in Underground Coal Mines using Laboratory and In-Situ Testing

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E. Elias, D. Vandermaat, A. Crosky, S. Saydam, P. Hagan, B. K. Hebblewhite, P. Craig
Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-037
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View Paper titled, Environmental Characterization of the Stress-Corrosion Cracking of Rockbolts in Underground Coal Mines using Laboratory and In-Situ Testing
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Proceedings Papers

A Modified Failure Criterion With Scale Effect Parameter

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H. Masoumi, P. Hagan, S. Saydam
Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-186
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View Paper titled, A Modified Failure Criterion With Scale Effect Parameter
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Proceedings Papers

Effect of Loading Rate on Strength and Failure Process of Frozen Welded Tuff

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J. Kodama, Y. Fujii, T. Goto, P. Hagan
Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-066
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View Paper titled, Effect of Loading Rate on Strength and Failure Process of Frozen Welded Tuff
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Proceedings Papers

Experimental Study of Size Effects of Rock On UCS And Point Load Tests

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H. Masoumi, K.J. Douglas, S. Saydam, P. Hagan
Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-215
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View Paper titled, Experimental Study of Size Effects of Rock On UCS And Point Load Tests
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Proceedings Papers

The Effect of Certain Chemical Solutions on Some Material Properties of Clay Bearing Rocks

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P. Hagan, S. Saydam, E. Elias, L. Deramore Denver, B. Hebblewhite
Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-102
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View Paper titled, The Effect of Certain Chemical Solutions on Some Material Properties of Clay Bearing Rocks
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Proceedings Papers

The Effect Of Stylus Hardness And Some Test Parameters On Cerchar Abrasivity Index

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N. Jacobs, P. Hagan
Paper presented at the 43rd U.S. Rock Mechanics Symposium & 4th U.S. - Canada Rock Mechanics Symposium, June 28–July 1, 2009
Paper Number: ARMA-09-191
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View Paper titled, The Effect Of Stylus Hardness And Some Test Parameters On Cerchar Abrasivity Index
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Proceedings Papers

Stress Corrosion of Rockbolts In Australian Coal Mines

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P. Craig, S. Saydam, P. Hagan
Paper presented at the 43rd U.S. Rock Mechanics Symposium & 4th U.S. - Canada Rock Mechanics Symposium, June 28–July 1, 2009
Paper Number: ARMA-09-182
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View Paper titled, Stress Corrosion of Rockbolts In Australian Coal Mines
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