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Preliminary caisson geotechnical designs are required for two foundation types, namely support and anchor foundations. Both have different design challenges: for top loaded support foundations, it is possible to directly obtain optimum geometries (i.e. factored loads equal factored resistances) for given VHM loads.
Other modes analyse all load cases to find those with low Factors of Safety. The main anchor mode finds optimum caisson lug level and embedded lengths, using chain profiles computed from seafloor loads.
Organisation B requested CAISSON_VHM analyses for 2 support and 1 anchor foundations. Organisation B spot checks made at L/D ≈ 0.5, 3 and 1, see Table below, gave reasonable agreement. In addition, less than 1 s computer time was needed for all CAISSON_VHM analyses (3 runs, 1 or 2 load cases, 24 caisson diameters).
Note: each license term can be adjusted to your needs with a minimum of 1 year and 1 user.
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