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  1. JYChen

    Soil Structure Interaction

    What is z-y curve? Are you meant to say t-z for the axial behavior?
  2. JYChen

    Lateraly loaded piles in sands. As and Bs curves.

    Unfortunately, Reese retired before I went to UT....I didn't have a chance to work with him.... Will ask FHWA if they release the source code or not....
  3. JYChen

    Lateraly loaded piles in sands. As and Bs curves.

    Can you provide the link to download the FORTRAN source code of COM624? I looked at the FHWA geotechnical engineeirng software site and it has the executable files only. Thanks.
  4. JYChen

    Max. Equivalent Fluid Density

    Because the equivalent fluid density or equivalent fluid pressure is another form to present the lateral earth pressure, it can vary according to the wall movement and groundwater conditions. For example, if it is a rigid wall, I will probably calculate the equivalent fluid density based on the...
  5. JYChen

    Hi All, I am designing a buried

    http://www.usace.army.mil/inet/usace-docs/eng-manuals/em1110-1-1904/ This link will probably tell you how to "estimate" the undrained Young's modulus (E.u) from the undrained shear strength (c.u). Check out Appendix D if you need a quick estimate. Is the soil saturated? Do you need...
  6. JYChen

    I need 2D FEM Software for SOILS

    You may want to try GeoFEAP....
  7. JYChen

    Soldier Pile wall with Tiebacks-Software?

    Wow, it's a surprise to me that I will get so many follow-ups. Fortunately, pretty much all of them are the good points that I agree with. In fact, I believe that a good model should be calibrated against field performance. For example, the inclinometer data will be very helpful in adjusting the...
  8. JYChen

    Soldier Pile wall with Tiebacks-Software?

    Dear PEinc: I think that Dasovich was asking about a program for designing soldier pile walls with tiebacks but not sheet pile walls in the first place. I am pretty happy using PYWALL to analyze soldier pile with tieback wall system. I have developed a MathCAD template to obtain those...
  9. JYChen

    Soldier Pile wall with Tiebacks-Software?

    I have used the program, PYWALL, to analyze/design several soldier pile and lagging with tieback retaining walls. You will need to come up with a variety of parameters to model the tiebacks using p-y curves, the properties of either driven or drilled-in soldier beams, widths for active and...

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