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Conference Paper: Laboratory comparative tests for geomaterial strengths with drilling process monitoring technique

TitleLaboratory comparative tests for geomaterial strengths with drilling process monitoring technique
Authors
Issue Date2008
Citation
Proceedings Of The International Young Scholars' Symposium On Rock Mechanics - Boundaries Of Rock Mechanics Recent Advances And Challenges For The 21St Century, 2008, p. 127-131 How to Cite?
Abstract
This paper introduces a system for laboratory comparative tests of the drilling process monitoring (DPM) method. It further documents a series of comparative test results on cement grouts with aging days in laboratory. The tests include the diamond bit coring with DPM in cement grout blocks and the conventional uniaxial compression tests on the cylindrical grout cores at the aging time from 3 to 25 days. The preliminary test results clearly demonstrate that the grout coring penetration rates decrease and the grout uniaxial compressive strengths increase with the aging days of the cement grout specimens and that the values of the grout coring penetration rates at any aging days have less variations than those of the grout uniaxial compressive strength. These initial findings may indicate that the coring with DPM has the potential to become a tool for in-situ measurement of the mechanical properties and strength of geomaterials including rock and concrete. Finally, the specific energy during grout drilling is studied to correlate with the grout uniaxial compressive strength. An alternative way to measure the specific energy is proposed and will be further studied. © 2008 Taylor & Francis Group.
Persistent Identifierhttp://hdl.handle.net/10722/152156
References

 

DC FieldValueLanguage
dc.contributor.authorLu, WJen_HK
dc.contributor.authorLau, TYen_HK
dc.contributor.authorYue, ZQen_HK
dc.date.accessioned2012-06-26T06:35:39Z-
dc.date.available2012-06-26T06:35:39Z-
dc.date.issued2008en_HK
dc.identifier.citationProceedings Of The International Young Scholars' Symposium On Rock Mechanics - Boundaries Of Rock Mechanics Recent Advances And Challenges For The 21St Century, 2008, p. 127-131en_US
dc.identifier.urihttp://hdl.handle.net/10722/152156-
dc.description.abstractThis paper introduces a system for laboratory comparative tests of the drilling process monitoring (DPM) method. It further documents a series of comparative test results on cement grouts with aging days in laboratory. The tests include the diamond bit coring with DPM in cement grout blocks and the conventional uniaxial compression tests on the cylindrical grout cores at the aging time from 3 to 25 days. The preliminary test results clearly demonstrate that the grout coring penetration rates decrease and the grout uniaxial compressive strengths increase with the aging days of the cement grout specimens and that the values of the grout coring penetration rates at any aging days have less variations than those of the grout uniaxial compressive strength. These initial findings may indicate that the coring with DPM has the potential to become a tool for in-situ measurement of the mechanical properties and strength of geomaterials including rock and concrete. Finally, the specific energy during grout drilling is studied to correlate with the grout uniaxial compressive strength. An alternative way to measure the specific energy is proposed and will be further studied. © 2008 Taylor & Francis Group.en_HK
dc.languageengen_US
dc.relation.ispartofProceedings of the International Young Scholars' Symposium on Rock Mechanics - Boundaries of Rock Mechanics Recent Advances and Challenges for the 21st Centuryen_HK
dc.titleLaboratory comparative tests for geomaterial strengths with drilling process monitoring techniqueen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailLu, WJ:wwlu@hku.hken_HK
dc.identifier.emailYue, ZQ:yueqzq@hkucc.hku.hken_HK
dc.identifier.authorityLu, WJ=rp00411en_HK
dc.identifier.authorityYue, ZQ=rp00209en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-56449099499en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-56449099499&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage127en_HK
dc.identifier.epage131en_HK
dc.identifier.scopusauthoridLu, WJ=7404215221en_HK
dc.identifier.scopusauthoridLau, TY=35980933600en_HK
dc.identifier.scopusauthoridYue, ZQ=7102782735en_HK

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