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Recent content by ktwannabe

  1. ktwannabe

    Minimum Pile Length

    Does anyone have a good reference for minimum pile lengths for HP steel piles driven to refusal on limestone bedrock? The piles are only loaded axially. For PADOT, the minimum allowable pile length is 10 feet. I have used 6 feet in the past with success but that was based on my "gut" instinct...
  2. ktwannabe

    Organic Sands

    I am looking for a good reference that discusse the settlement behavior of organic sands. Especially if it correlates % organic content to increased settlement. We have a project that is partially underlain by 5 feet of dry to moist,loose to medium dense organic sands with up to 15% organic...
  3. ktwannabe

    Micaceous Soils

    We have a project where the bearing material is micaceous sand. We are setimating bearing capacity and settlement and wondering how to estimate how the soils will behave when loaded. We're using an ASCE reference, Foundations and Excavations in Decomposed Rock of the Piedmont Province, that...
  4. ktwannabe

    H-Piles bearing on shale

    Like VAD and gandersen, here is PA we typically design a HP 12x74 based on structural capacity, as well, if driven to absolute refusal on bedrock. I caught your last note about the plunging failure at 234 tons and wonder if this shale formation is known for relaxation like the Conemaugh here in...
  5. ktwannabe

    Retaining Wall to Support Utility Pole

    We are working on a site development project where the proposed parking lot will require a 4 foot cut into a short hillside approximately 5 feet away from an existing utility pole. We anticpate installing a retaining wall to support the cut and maintain the stability of the pole. The...
  6. ktwannabe

    Formula in Excel

    audioguy52: If I understand the question correctly then you need to add $ signs to the formula such as $A$1 so that the cells you copy the formula to will continue to pint to the cell A1. If understood incorrectly please let me know ktwannabe
  7. ktwannabe

    Cracked EI Analysis for Drilled Shafts

    We are running COM624 for a drilled shaft design. I am researching the behavior of the shaft when using a cracked EI analysis as I am not sure of the implications of this analysis. The deflection are less if I assume cracked EI. Can anyone point me to a good reference for this topic?
  8. ktwannabe

    method of slices

    Depending on your reasons for wanting to see a hand calc, interest, desire to learn, checking someone else's work, I would recommend going right to the source. Bishops and Janbu both did their doctorate work on slope stability. A copy of their papers should be part of any engineering...

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