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  • Users: MramJ
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  1. MramJ

    Frost heave

    Hello everyone, I am looking for a way to estimate frost heave of soils without specialized laboratory testing or investigation. I have frost depth, hydrometer results (showing 54% silts), and moisture content. Is there a straightforward way to obtain a reasonably acceptable estimate with a...
  2. MramJ

    Upper limit for soils' bearing capacity (ULS)

    Hi everyone, I have a geotechnical report that provided an Ultimate Limit State (ULS) bearing capacity of 2000 kPa for silty sand soils with N-values greater than 50 (reaching about 70 blows per 0.3 m). My question is: Is there an upper limit to the ULS value where a geotech would not consider...
  3. MramJ

    Settlement vs Foundation Size

    Hey everyone, In the CFEM, there is an equation by Burland and Burbidge (1985) for foundations on normally consolidated coarse-grained soils: \[ S = B^{0.75} \times \frac{1.6}{N_{60}^{1.4} \times q} \] I believe that this equation is based on observed data, but there are a couple of things I'm...
  4. MramJ

    ULS and SLS

    Could someone please explain how to evaluate bearing capacity using ULS? (I'm in Canada, if that makes a difference.) I have tried finding answers and reading reports, but I never clearly understand how ULS and SLS are calculated. 1) Is ULS a factored ultimate bearing capacity? If so, why do...

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