In situ determination of Ghh at Bothkennar using a novel seismic method
In situ determination of Ghh at Bothkennar using a novel seismic method
The paper describes a novel seismic method for determining the variation of velocity with depth of horizontally propagating, horizontally polarized shear waves (Sh,h). The technique exploits the curved paths of seismic waves in deposits with increasing velocity properties with depth. The new method has been applied at the soft clay test site at Bothkennar, and the results of this survey are compared with Sh,h and Sv,h wave velocity profiles obtained using conventional crosshole survey techniques at the site. The seismic data are further compared with the results of recently reported bender element tests on unconfined samples from the bedded and mottled Bothkennar clay. It is shown that, at the site investigated, the new method presents results comparable to those from the established field survey techniques. Neither the seismic nor the bender element data indicate significant stiffness anisotropy at the site.
clay, engineering properties, geophysics, in situ tests, stiffness
97-105
Hope, V.S.
9dd533f5-648a-442f-ad85-77fc7d73d217
Clayton, C.R.I.
8397d691-b35b-4d3f-a6d8-40678f233869
Butcher, A.P.
7928b497-7953-4aac-beb2-85f09ad2f564
May 1999
Hope, V.S.
9dd533f5-648a-442f-ad85-77fc7d73d217
Clayton, C.R.I.
8397d691-b35b-4d3f-a6d8-40678f233869
Butcher, A.P.
7928b497-7953-4aac-beb2-85f09ad2f564
Hope, V.S., Clayton, C.R.I. and Butcher, A.P.
(1999)
In situ determination of Ghh at Bothkennar using a novel seismic method.
Quarterly Journal of Engineering Geology and Hydrogeology, 32 (2), .
(doi:10.1144/GSL.QJEG.1999.032.P2.01).
Abstract
The paper describes a novel seismic method for determining the variation of velocity with depth of horizontally propagating, horizontally polarized shear waves (Sh,h). The technique exploits the curved paths of seismic waves in deposits with increasing velocity properties with depth. The new method has been applied at the soft clay test site at Bothkennar, and the results of this survey are compared with Sh,h and Sv,h wave velocity profiles obtained using conventional crosshole survey techniques at the site. The seismic data are further compared with the results of recently reported bender element tests on unconfined samples from the bedded and mottled Bothkennar clay. It is shown that, at the site investigated, the new method presents results comparable to those from the established field survey techniques. Neither the seismic nor the bender element data indicate significant stiffness anisotropy at the site.
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Published date: May 1999
Keywords:
clay, engineering properties, geophysics, in situ tests, stiffness
Identifiers
Local EPrints ID: 74778
URI: http://eprints.soton.ac.uk/id/eprint/74778
ISSN: 1470-9236
PURE UUID: 9c96c3fd-a3d8-46de-8058-332cfec68916
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:43
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Contributors
Author:
V.S. Hope
Author:
A.P. Butcher
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