File Download
 
Links for fulltext
(May Require Subscription)
 
Supplementary

Conference Paper: Laboratory comparative tests for geomaterial strengths with drilling process monitoring technique
  • Basic View
  • Metadata View
  • XML View
TitleLaboratory comparative tests for geomaterial strengths with drilling process monitoring technique
 
AuthorsLu, WJ1
Lau, TY1
Yue, ZQ1
 
Issue Date2008
 
CitationProceedings Of The International Young Scholars' Symposium On Rock Mechanics - Boundaries Of Rock Mechanics Recent Advances And Challenges For The 21St Century, 2008, p. 127-131 [How to Cite?]
 
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.
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorLu, WJ
 
dc.contributor.authorLau, TY
 
dc.contributor.authorYue, ZQ
 
dc.date.accessioned2012-06-26T06:35:39Z
 
dc.date.available2012-06-26T06:35:39Z
 
dc.date.issued2008
 
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.
 
dc.description.natureLink_to_subscribed_fulltext
 
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. 127-131 [How to Cite?]
 
dc.identifier.epage131
 
dc.identifier.scopuseid_2-s2.0-56449099499
 
dc.identifier.spage127
 
dc.identifier.urihttp://hdl.handle.net/10722/152156
 
dc.languageeng
 
dc.relation.ispartofProceedings of the International Young Scholars' Symposium on Rock Mechanics - Boundaries of Rock Mechanics Recent Advances and Challenges for the 21st Century
 
dc.relation.referencesReferences in Scopus
 
dc.titleLaboratory comparative tests for geomaterial strengths with drilling process monitoring technique
 
dc.typeConference_Paper
 
<?xml encoding="utf-8" version="1.0"?>
<item><contributor.author>Lu, WJ</contributor.author>
<contributor.author>Lau, TY</contributor.author>
<contributor.author>Yue, ZQ</contributor.author>
<date.accessioned>2012-06-26T06:35:39Z</date.accessioned>
<date.available>2012-06-26T06:35:39Z</date.available>
<date.issued>2008</date.issued>
<identifier.citation>Proceedings Of The International Young Scholars&apos; Symposium On Rock Mechanics - Boundaries Of Rock Mechanics Recent Advances And Challenges For The 21St Century, 2008, p. 127-131</identifier.citation>
<identifier.uri>http://hdl.handle.net/10722/152156</identifier.uri>
<description.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. &#169; 2008 Taylor &amp; Francis Group.</description.abstract>
<language>eng</language>
<relation.ispartof>Proceedings of the International Young Scholars&apos; Symposium on Rock Mechanics - Boundaries of Rock Mechanics Recent Advances and Challenges for the 21st Century</relation.ispartof>
<title>Laboratory comparative tests for geomaterial strengths with drilling process monitoring technique</title>
<type>Conference_Paper</type>
<description.nature>Link_to_subscribed_fulltext</description.nature>
<identifier.scopus>eid_2-s2.0-56449099499</identifier.scopus>
<relation.references>http://www.scopus.com/mlt/select.url?eid=2-s2.0-56449099499&amp;selection=ref&amp;src=s&amp;origin=recordpage</relation.references>
<identifier.spage>127</identifier.spage>
<identifier.epage>131</identifier.epage>
</item>
Author Affiliations
  1. The University of Hong Kong