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Recent content by ghgeo

  1. ghgeo

    Fellenius Neutral Plane Method (Downdrag)

    I am uncertain about how to construct the "resistance curve" in Fellenius's method for determining the location of a the neutral plane for piles subjected to downdrag (see attached). At point A, the value is Rt + Sum of RS from A to B. At point B, the value is Rt. How do you draw the curve...
  2. ghgeo

    Nuclear Density Gauge Storage Solutions

    Has anyone come up with "creative" storage solutions for a nuclear density gauge? My company is planning on purchasing a density gauge, but I can not figure out were to store it. My office is located on the main street of a small town. In general, there are Business on the first floor on...
  3. ghgeo

    Latterally Loaded Caisson in Slope

    Does anyone know of a slope stability method that incorporate the lateral loads on a caisson embedded in a slope? The loads would be acting towards the slope. I have a sound barrier located on a 16ft embankment that will be supported on caissons. I’ve run a Com624P analysis (using the slope...
  4. ghgeo

    Lateral Capacity of Rigid Caisson

    I need to analyze a reinforced concrete caisson that will support a sound barrier wall that is subjected to wind loads. The caisson is to be 3.0 ft in diameter; the top of caisson is located 1.5 ft below ground surface; and the caisson length is 12.5 ft. I’ve attached a sketch showing the...
  5. ghgeo

    External Stability of MSE Wall with Crash/Noise Barrier

    Thanks Boondog! Hadn't realized the new FHWA Manual was available for free download. This will help.
  6. ghgeo

    External Stability of MSE Wall with Crash/Noise Barrier

    I am evaluating the external stability of a MSE wall. There is a noise wall, mounted on a crash (jersey) barrier with moment slab, that sits on the top of the wall. The applicable design standard states: “Barriers, constructed over or in line with the front face of the panel shall be...
  7. ghgeo

    Differential Settlement of Circular Concrete Water Tank

    For help in preparing the scope of work for a geotechnical investigation, I’m looking for some thoughts on how to evaluate the differential settlement across the footprint of a circular concrete water tank. From the request for proposal: The proposed tank is 400-feet in diameter and contains...

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