Dear Lisa,
The civil engineering department at Cardiff University have a direct
shear box measuring 3m x 1.5m x 1.5m, which uses air bags to apply a
confining pressure of up to 400kPa, this was developed by Prof. Michael
Davies who is now at University of Dundee.
I spent a year carrying out research into soil / soil nail interaction
mechanisms using this apparatus. The tests used both sand and clay
samples. The logistics of handling this amount of material need careful
consideration if you are planning to carry out tests on a similar scale
(I used a mini excavator to load the clay in and out of the box!)
We published a paper in the 3rd Int. Conf. on Ground Improvement
Geosystems (Davies and Le Masurier, 1997). A PhD thesis by Jacobs
(1993) gives far more detail on the building of the apparatus and its
operation.
Please contact me again if you would like more information.
Regards
Jason Le Masurier
On Wed, 22 Sep 1999 23:18:22 PDT lisa robinson <[log in to unmask]>
wrote:
> Dear list members,
>
> Hi, my name is Lisa Robinson and I am an Australian engineering student
> currently studying in Germany.
> At the moment I am working in the goetechnical labs of my host uni, and
> assisting in the preliminary research regarding the testing of shear
> strength of large-sized granular soils and/or geotextiles.
> We are hoping to develop a large scale (up to 3m) direct shear box test
> procedure. If anyone can point me in the direction of any references, papers
> or websites relating to this topic it would be much appreciated.
> Thankyou in advance,
> Regards
> Lisa Robinson
>
Research Associate
Department of Civil Engineering,
University Walk,
Bristol, BS 8 1TR.
tel +44 (0)117 9288328
fax +44 (0)117 9287783
[log in to unmask]
http://www.fen.bris.ac.uk/civil/research/jason/jlem.htm
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