Article: Automatic monitoring of inserting or retrieving SPT sampler in drillhole

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TitleAutomatic monitoring of inserting or retrieving SPT sampler in drillhole
AuthorsYang, WW1 2
Yue, ZQ1
Tham, LG1
KeywordsTip Depth
Standard Penetration Test
Automation
Borehole
Drillhole
Management
Site investigation
Issue Date2012
PublisherASTM International. The Journal's web site is located at http://journalsip.astm.org/JOURNALS/GEOTECH/gtj%5Fhome.html
CitationGeotechnical Testing Journal, 2012, v. 35 n. 3, p. 420-436 [How to Cite?]
DOI: http://dx.doi.org/10.1520/GTJ103450
AbstractThis paper presents a new device for the automatic monitoring and measurement of drill rod and sampler depth associated with conventional standard penetration testing (SPT). The device consists of a depth tip transducer and a data logger. The transducer can be firmly mounted onto the drillhole casing on the ground surface. The data logger monitors the passing of the sampler and rods through the transducer into the drillhole during rod insertion or retrieval and therefore records the tip depth in real time. The paper presents the results of calibrations and laboratory and field trials. The test results demonstrate that the device can accurately, reliably, and automatically measure the vertical displacement, velocity, and acceleration of rod insertion or retrieval in real time. Copyright © 2012 by ASTM International.
ISSN0149-6115
2011 Impact Factor: 0.505
2011 SCImago Journal Rankings: 0.035
DOIhttp://dx.doi.org/10.1520/GTJ103450
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorYang, WW
dc.contributor.authorYue, ZQ
dc.contributor.authorTham, LG
dc.date.accessioned2012-06-26T06:06:42Z
dc.date.available2012-06-26T06:06:42Z
dc.date.issued2012
dc.description.abstractThis paper presents a new device for the automatic monitoring and measurement of drill rod and sampler depth associated with conventional standard penetration testing (SPT). The device consists of a depth tip transducer and a data logger. The transducer can be firmly mounted onto the drillhole casing on the ground surface. The data logger monitors the passing of the sampler and rods through the transducer into the drillhole during rod insertion or retrieval and therefore records the tip depth in real time. The paper presents the results of calibrations and laboratory and field trials. The test results demonstrate that the device can accurately, reliably, and automatically measure the vertical displacement, velocity, and acceleration of rod insertion or retrieval in real time. Copyright © 2012 by ASTM International.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationGeotechnical Testing Journal, 2012, v. 35 n. 3, p. 420-436 [How to Cite?]
DOI: http://dx.doi.org/10.1520/GTJ103450
dc.identifier.doihttp://dx.doi.org/10.1520/GTJ103450
dc.identifier.epage436
dc.identifier.hkuros206930
dc.identifier.issn0149-6115
2011 Impact Factor: 0.505
2011 SCImago Journal Rankings: 0.035
dc.identifier.issue3
dc.identifier.scopuseid_2-s2.0-84861498268
dc.identifier.spage420
dc.identifier.urihttp://hdl.handle.net/10722/150677
dc.identifier.volume35
dc.languageeng
dc.publisherASTM International. The Journal's web site is located at http://journalsip.astm.org/JOURNALS/GEOTECH/gtj%5Fhome.html
dc.publisher.placeUnited States
dc.relation.ispartofGeotechnical Testing Journal
dc.relation.referencesReferences in Scopus
dc.subjectTip Depth
dc.subjectStandard Penetration Test
dc.subjectAutomation
dc.subjectBorehole
dc.subjectDrillhole
dc.subjectManagement
dc.subjectSite investigation
dc.titleAutomatic monitoring of inserting or retrieving SPT sampler in drillhole
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Guangdong Provincial Investigation