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Boulder Clay

Boulder Clay

Boulder Clay

(OP)
Hi

I am doing a slope stability analysis for a proposed landfill; the liner shall consist of Boulder Clay which is site won material, which is re compacted to an engineering specification.  The subgrade is insitu boulder clay with some sand lenses, the clay liner shall be overlain by a separation geotextile and 300mm of gravel.  The landfill itself will be a maximum of 9m deep and the side slope is a maximum gradient of 1:3.

I am inexperienced in this area of work and could do with some pointers!  I have been looking through the Dixon and Jones papers which seem to form the basis for the SRA's for EA review however, I need some published data for Boulder Clays for my initial analysis does anyone have any published figures I can use?

IE
Unit Weight and effective friction angle etc?

Thank you for your help

CJ
 

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