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  • Users: iandig
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  1. iandig

    Relationship between subgrade stiffness E, and equivalent CBR

    Hello everyone I know that there are many posts relating to the use of the CBR as well as the subgrade stiffness. I have a background in construction materials testing (20 years) and have spent the last 20 years as a Geotechnical Designer/Civil Engineer specializing in earthworks and...
  2. iandig

    Air Void Content - problems with BS EN 12697-6

    I have recently been involved with a project, but just looking at the sub-grade and re-engineering of the materials below a pavement. Once my involvement with the project finished, the pavement was surfaced in the normal manner, but subsequently the binder course was found to be saturated...
  3. iandig

    What is an 'Attenuation Test'?

    I have also posted this in Waste Disposal and Treatment' even though it would appear to relate to a specific soils test for assessing the suitability of clay to form an impermeable liner for a landfill. I have been asked what the test is and what standard it refers to. Although I have been...
  4. iandig

    Interpretation of Vibro-replacement Stone Column data

    Does anyone have any experience of 'attempting' to interpret data recorded during the formation of vibro-stone columns? I have received a large amount of data from the ground improvement contractor, which consists of the depth of penetration, along with pressure. I am in the unenviable position...
  5. iandig

    Calculating desiccation shrinkage

    I have been asked by a German Design and Build contractor to review and comment on their procedure for predicting the potential settlement due to desiccation. The site is in the UK and the underlying soil is a Glacial Till/Boulder Clay, LL 43-45, PL 17-19, PI 24-26. The equation they have used...
  6. iandig

    Calculating desiccation shrinkage

    I have been asked by a German Design and Build contractor to review and comment on their procedure for predicting the potential settlement due to desiccation. The site is in the UK and the underlying soil is a Glacial Till/Boulder Clay, LL 43-45, PL 17-19, PI 24-26. The equation they have used...

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