Correlation between CPT and Screw Driving Sounding (SDS)

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dc.contributor.author Mirjafari, Y en
dc.contributor.author Orense, Rolando en
dc.contributor.author Suemasa, N en
dc.contributor.editor Shakoor, A en
dc.contributor.editor Cato, K en
dc.coverage.spatial San Francisco, CA, USA en
dc.date.accessioned 2019-02-27T23:18:30Z en
dc.date.issued 2019 en
dc.identifier.isbn 978-3-319-93127-2 en
dc.identifier.uri http://hdl.handle.net/2292/45600 en
dc.description.abstract Cone penetration test (CPT) is probably the most popular in situ testing method in the world today. Various design parameters, such as undrained strength and relative density, as well as indices for liquefaction assessment, can be derived from the CPT. However, the use of CPT in many roading projects and in subdivision developments may be constrained by the number of tests or project cost; hence, alternative in situ testing technique to supplement the CPT is necessary. Screw Driving Sounding (SDS) is a new in situ test in which a machine drills a screw point into the ground in several loading steps while the attached rod is continuously rotated. During the test, a number of parameters, such as torque, load, speed of penetration and friction, are measured at every rotation of the rod; these provide a robust way of characterising soil stratigraphy. In this paper, the principle of SDS testing is described. SDS tests were performed at various sites in New Zealand where CPT data are available. Then, a side-by-side comparison between CPT and SDS is performed to derive correlations between the CPT tip resistance (qc), sleeve friction (fs) and soil behavior type index (Ic) and the SDS parameters. Based on the results, it is observed that qc correlates well with the penetration energy in SDS while fs and Ic are related to the average torque and change in torque, respectively. The good correlation obtained between CPT and SDS indicates that SDS can supplement CPT results for a more cost-effective geotechnical investigation. en
dc.publisher Springer en
dc.relation.ispartof 13th Congress of the International Association for Engineering Geology and the Environment en
dc.relation.ispartofseries IAEG/AEG Annual Meeting Proceedings en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Correlation between CPT and Screw Driving Sounding (SDS) en
dc.type Conference Item en
dc.identifier.doi 10.1007/978-3-319-93127-2_8 en
pubs.begin-page 47 en
pubs.volume 2 en
dc.rights.holder Copyright: The author en
pubs.end-page 54 en
pubs.finish-date 2018-09-21 en
pubs.place-of-publication Cham en
pubs.start-date 2018-09-17 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Proceedings en
pubs.elements-id 755615 en
pubs.org-id Engineering en
pubs.org-id Civil and Environmental Eng en
pubs.record-created-at-source-date 2018-11-05 en


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