The value of stiffness measured in field seismic surveys
The value of stiffness measured in field seismic surveys
Stiffness parameters are required for many geotechnical calculations, including numerical modelling using the finite element or finite difference methods. The measurement of stiffness is not trivial, yet the actual values of stiffness adopted during analyses can have a very significant impact on predictions, and hence the perceived viability of a project. Measurement of stiffness in the laboratory is now well established, using techniques such as advanced triaxial testing with local strain measurement, cyclic triaxial testing, and the resonant column apparatus. Field geophysical techniques, although not as well established, can add significantly to the determination of input parameters for deformation analyses and prediction. This paper considers the strengths and weaknesses of these methods, using examples from a range of projects and ground conditions, and discusses how seismic geophysics can most effectively contribute.
stiffness, geophysics, seismic methods, site investigation
17-36
Clayton, C.R.I.
8397d691-b35b-4d3f-a6d8-40678f233869
Heymann, G.
4f086d55-d1c1-48df-a1a3-b552571cb0d3
Matthews, M.C.
d02f32ac-4928-4942-810e-f60e7d7123a5
2012
Clayton, C.R.I.
8397d691-b35b-4d3f-a6d8-40678f233869
Heymann, G.
4f086d55-d1c1-48df-a1a3-b552571cb0d3
Matthews, M.C.
d02f32ac-4928-4942-810e-f60e7d7123a5
Clayton, C.R.I., Heymann, G. and Matthews, M.C.
(2012)
The value of stiffness measured in field seismic surveys.
[in special issue: KGS Awards Lectures]
International Journal of Geo-Engineering, 4 (2), .
Abstract
Stiffness parameters are required for many geotechnical calculations, including numerical modelling using the finite element or finite difference methods. The measurement of stiffness is not trivial, yet the actual values of stiffness adopted during analyses can have a very significant impact on predictions, and hence the perceived viability of a project. Measurement of stiffness in the laboratory is now well established, using techniques such as advanced triaxial testing with local strain measurement, cyclic triaxial testing, and the resonant column apparatus. Field geophysical techniques, although not as well established, can add significantly to the determination of input parameters for deformation analyses and prediction. This paper considers the strengths and weaknesses of these methods, using examples from a range of projects and ground conditions, and discusses how seismic geophysics can most effectively contribute.
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Published date: 2012
Keywords:
stiffness, geophysics, seismic methods, site investigation
Organisations:
Infrastructure Group
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Local EPrints ID: 360567
URI: http://eprints.soton.ac.uk/id/eprint/360567
PURE UUID: 49d85863-0612-4dc1-9dea-ade75c129d34
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Date deposited: 02 Jan 2014 14:21
Last modified: 11 Dec 2021 03:33
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Author:
G. Heymann
Author:
M.C. Matthews
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