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| Title: | A comparison of four geophysical methods for determining the shear wave velocity of soils |
| Author (s): | Anderson, Neil L. Thitimakorn, Thanop Ismail, Ahmed Hoffman, David J. |
| Department/Lab Affiliations: | Center for Infrastructure Engineering Studies Civil, Architectural & Environmental Engineering Geological Sciences & Engineering Materials Research Center Natural Hazard Mitigation Institute (NHMI) University Transportation Center |
| Keywords: | Crosshole (CH) Multichannel analysis of surface waves (MASW) Refraction microtremor (ReMi) Seismic cone penetrometer test (SCPT) |
| Subject Terms: | Shear waves -- Measurement. Soil dynamics -- Testing -- Methodology. Surface waves -- Measurement. |
| Issue Date: | 2007 |
| Publisher: | Association of Engineering Geologists |
| Citation: | Anderson, Neil, Thanop Thitimakorn, Ahmed Ismail and David Hoffman. “A Comparison of Four Geophysical Methods for Determining the Shear Wave Velocity of Soils.” Environmental and Engineering Geoscience, v. 13, pp. 11-23, 2007. |
| Abstract: | The Missouri Department of Transportation (MoDOT) routinely acquires seismic cone penetrometer (SCPT) shear wave velocity control as part of the routine investigation of soils within the Mississippi Embayment. In an effort to ensure their geotechnical investigations are as effective and efficient as possible, the SCPT tool and several available alternatives (crosshole [CH]; multichannel analysis of surface waves [MASW]; and refraction microtremor [ReMi]) were evaluated and compared on the basis of field data acquired at two test sites in southeast Missouri. These four methods were ranked in terms of accuracy, functionality, cost, other considerations, and overall utility. It is concluded that MASW data are generally more reliable than SCPT data, comparable to quality ReMi data, and only slightly less accurate than CH data. However, the other advantages of MASW generally make it a superior choice over the CH, SCPT, and ReMi methods for general soil classification purposes to depths of 30 m. MASW data are less expensive than CH data and SCPT data and can normally be acquired in areas inaccessible to drill and SCPT rigs. In contrast to the MASW tool, quality ReMi data can be acquired only in areas where there are interpretable levels of "passive" acoustic energy and only when the geophone array is aligned with the source(s) of such energy. |
| Type: | Article - Journal text |
| Copyright Notice: | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. Policy Unknown FULL COPYRIGHT INFORMATION: |
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| title | A comparison of four geophysical methods for determining the shear wave velocity of soils |
| contributor.author | Anderson, Neil L. |
| contributor.author | Thitimakorn, Thanop |
| contributor.author | Ismail, Ahmed |
| contributor.author | Hoffman, David J. |
| contributor.deptlab | Center for Infrastructure Engineering Studies |
| contributor.deptlab | Civil, Architectural & Environmental Engineering |
| contributor.deptlab | Geological Sciences & Engineering |
| contributor.deptlab | Materials Research Center |
| contributor.deptlab | Natural Hazard Mitigation Institute (NHMI) |
| contributor.deptlab | University Transportation Center |
| subject | Crosshole (CH) |
| subject | Multichannel analysis of surface waves (MASW) |
| subject | Refraction microtremor (ReMi) |
| subject | Seismic cone penetrometer test (SCPT) |
| subject.LCSH | Shear waves -- Measurement. |
| subject.LCSH | Soil dynamics -- Testing -- Methodology. |
| subject.LCSH | Surface waves -- Measurement. |
| date.issued | 2007 |
| publisher | Association of Engineering Geologists |
| identifier.citation | Anderson, Neil, Thanop Thitimakorn, Ahmed Ismail and David Hoffman. “A Comparison of Four Geophysical Methods for Determining the Shear Wave Velocity of Soils.” Environmental and Engineering Geoscience, v. 13, pp. 11-23, 2007. |
| identifier.pub.URI | |
| description.abstract | The Missouri Department of Transportation (MoDOT) routinely acquires seismic cone penetrometer (SCPT) shear wave velocity control as part of the routine investigation of soils within the Mississippi Embayment. In an effort to ensure their geotechnical investigations are as effective and efficient as possible, the SCPT tool and several available alternatives (crosshole [CH]; multichannel analysis of surface waves [MASW]; and refraction microtremor [ReMi]) were evaluated and compared on the basis of field data acquired at two test sites in southeast Missouri. These four methods were ranked in terms of accuracy, functionality, cost, other considerations, and overall utility. It is concluded that MASW data are generally more reliable than SCPT data, comparable to quality ReMi data, and only slightly less accurate than CH data. However, the other advantages of MASW generally make it a superior choice over the CH, SCPT, and ReMi methods for general soil classification purposes to depths of 30 m. MASW data are less expensive than CH data and SCPT data and can normally be acquired in areas inaccessible to drill and SCPT rigs. In contrast to the MASW tool, quality ReMi data can be acquired only in areas where there are interpretable levels of "passive" acoustic energy and only when the geophone array is aligned with the source(s) of such energy. |
| type | Article - Journal |
| type.DCMIType | text |
| rights | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| rights | Policy Unknown |
| rights.URI | |
| date.available | 2008-07-28T15:32:19Z |
| identifier.persist.URI |