Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by geohec

  1. geohec

    Soil Retention Curve Spreadsheet

    Hello there: I did my homework sir. I've been studying the Lu and Likos book (Unsat soils) for the past 6 months, please see attached. The problem I have in the spreadsheet with the solver is fixing the square mean error to zero to generate the correct coefficients. Have you done this...
  2. geohec

    Soil Retention Curve Spreadsheet

    Hello there: I'm looking for an excel spreadsheet to model Brooks-Corey equation or VG for soil retention curves. I'm trying to figure out the soil parameters such as: Qr, Qs, Yb, and lambda using the root mean square deviation. Would anyone like to share one.....thanks
  3. geohec

    TIEBACKS-WINSTABL

    WinStabl Users: I'm using the software for a current project application with tieback anchors. Currently the program wont run. I think I might be doing something wrong in the data entry, either: boundary number or y-coordinate. Does anyone might have an insight on this data entry procedure...
  4. geohec

    SETTLEMENT ON SANDS-GERMAN METHOD

    Hello, can anyone share a spreadsheet for settlement calculations on SAND, based on SPT N values. Thank you
  5. geohec

    Effective Soil Pressures - Why?

    Effective stress in a main concept in geotechnical engineering. Is a form of describing indirectly soil particle interaction. You cannot measure effective stress directly. You can calculate total pressure and water pressure, if you subtract them you get effective stress. This is the best way of...
  6. geohec

    SETTLEMENTS ON SAND

    Hello, Is there any Florida geotechnical engineers that might care sharing a spreadsheet. I need a spreadsheet that may calculate settlements on sands based on SPT N-value and applied bearing pressure. Anyone?
  7. geohec

    SETTLEMENT ON SAND

    Hello Geofreeks, does anyone out there might share a spreadsheet that may calculate settlement on sands based on SPT N-value, and foundation bearing pressures. I
  8. geohec

    LATERAL LOADING ON PILES COM624P

    Anyone who had used COM624P software, knows that at some point the user needs to define the boundary condition code (KBC). For a case that I'm working on right now, what do you think will be the best appropriate KBC condition? A micropile installed on the crest of a slope for the stabilization...
  9. geohec

    CBR on cement-treated soils

    I tested soil fly ash samples back in 2002. That soil man is so hard after 7 days curing. We used nomal concrete curing days such as: 7, 14, 28 days for the samples. The best way is to collect the data electronically when performing a CBR under ASTM 1883. It is not an impossible thing to do...
  10. geohec

    Undrained Shear Strength

    You could make an estimate of undrained sher strength using Su=0.05*N-value (tsf). I usually reduce the value even further by about 2/3. Good luck!
  11. geohec

    Horizontal seismic coefficient reduction

    Based on the FHWA Pub. GEC No. 3, Vol. 1, it is allowed to reduce the pseudostatic coeficient (kh) to half its value, since it is recognized that the method itself is highly conservative. But in general, if you have a safety factor of about 1.15, your slope deformations should be less than a foot.
  12. geohec

    Calculating settlement

    From a consolidation test find, the e log p curve, you need to find the compression index value (Cc). Should be something like 0.20. Then, use the classical formula, found in any geotech book: S = [Cc/(1+eo)*log ((po+Dp)/po)]*H(thickness of soil) Look for Braja Das Geotechnical Engineering...
  13. geohec

    Chemical Subgrade Stabilization

    Yes, depending on the fly ash type, you could just use between 10 to 15% fly ash to stabilize a subgrade soil or for embankment construction. The reaction of the stabilization depends on many factors suh as: water content on the mixture, amount of fly ash, soil type, clay minerallogy, etc.
  14. geohec

    Engineering Geology

    engineering geology by RICHARD E. GOODMAN
  15. geohec

    CARBONATES TESTING

    How does testing for carbonates in a soil sample affects a foundation recommendation. I had seen geotech companies testing SPT samples using a 1M HCL solution. How does testing for carbonates will help me during report writing. My guess, could be to identify limestone presence in the sample...
See more

Part and Inventory Search

Back
Top