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  1. scotthicks99

    Retaining Wall with downward sloping backfill?

    So, in a general application a negative angle (-B) can be used to denote a declined backfill? Thanks for the tip on the vulcanhammer design manual. It does have a nice concise table for Ka/Kp respective to phi for granular soils. Unfortunately, my case is cohesive....which means I need to get...
  2. scotthicks99

    Retaining Wall with downward sloping backfill?

    How do I calculate the passive and active coefficients for a retaining wall with a downward sloping backfill. If you know, can you point me to a good reference? Essentially, what I want to calculate is the resisting force of a "wedge" of rock or soil up against a vertical face. The "wedge"...
  3. scotthicks99

    Help with Geo-referenced photos and GPS

    Are you SURE that the GPS coordinates are in the same horizontal coordinate system as the georeferenced picture? Just being NAD83 is not enough, as there are state plan coordinates that are NAD83 (northing and eastings) which can be in feet or meters and there are geographic coordinates that...
  4. scotthicks99

    Marine Pile Design - Load Sharing?

    I am looking for references on the load sharing of lateral loads on marine pile systems, say in a group of dolphins as oppossed to designing individual piles to withstand the full lateral load
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