Dear Karl
A great idea, but how about taking data in, in AGS format and when did any
one last use a 5.25 inch floppy!!!!
Regards and Happy Christmas
Steve Corbet
Land Systems LSA2 wrote:
>
> Dear All,
>
> Its recognised that soil has a stress history and is site specific,
> and soil parameters vary with depth, moisture content, pore water
> pressure etc. Just looking at the number of classification systems
> around it shows the diversity of soils. With the widespread use of
> geotechnical finite element (FE) modelling, it is about time to
> quantify soil parameters for a selection of typical soil types (e.g.
> British Soil Classification System, BSCS, detailed in BS 5930,
> 1981 which classifies soils from well graded GRAVEL (GW)
> through to CLAY of extremely low plasticity (CE) and Peat (Pt)). My
> aim is to enable FE users to get a feel for the range and
> relationships of soil parameters in order to get a better idea of
> typical values if laboratory soil tests are unavailable. These
> typical values are not intended to be used for design purposes, but
> to allow FE users to run their geotechnical problems using
> general/initial soil parameters, prior to more detailed analysis with
> more accurate soil data or data from in-situ measuring devices. I am
> attempting to create a soil parameter database of world-wide soils,
> and am looking to you to send me as much soil data (electronic in
> Microsoft Excel Format if possible) in as much detail as possible.
> If the site where the soil was taken from is sensitive please change
> the soil name (e.g. Clay site 1), but please send me real accurate
> data. If you obtained the data from elsewhere, please provide the
> source reference, so other people can refer to the original document.
> What do you get out of this ? Well you will be put on a mailing list
> and will be sent a Microsoft Excel spreadsheet on a 5.25 inch floppy
> disk of all the data when the database is initially released (due
> sometime in April 1999). If there is a good frequent response,
> subsequent releases will be considered. The sceptics among you will
> consider this a fool-hardy task, which could be misleading, include
> erogenous data and liable to be mis-used by the unwary or new FE
> users. My answer to this criticism is that this is an initial step
> to quantify a very complex problem, that is only attempting to give
> FE users an overview, to allow them to make more informed judgements
> on soil parameter selection. Remember you don't have to use the data
> in the database.
>
> Many thanks.
>
> Your Sincerely,
>
> Dr Karl Phillips
> Rm15, Bldg 138, DERA Chertsey, Chobham Lane, Chertsey,
> Surrey. KT16 0EE. United Kingdom.
> Email: [log in to unmask]
> [log in to unmask]
--
Steve Corbet
Associate Maunsell Ltd
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