Questions & Comments

Please feel free to ask questions, request new features, provide suggestions, report bugs, and comment on QzPile.

This Post Has 8 Comments

  1. Ziyang Xi

    Hello, Yong. Could you introduce which code or paper did you take referrence?

    1. Yong

      Hi Ziyang, you should be able to find tons of papers about t-z and Q-z curves for pile axial load analysis. QzPile uses FEM with springs and column element to simulate the pile load axial response. The specific soil spring model types are presented in the program, such as API Sand, API Clay. You can find the soil models in different code accordingly. You can specify your own model too.

      Please let me know if you have any other questions.

  2. Andreas

    Hi Yong, I’ve tried to use elastic perfectly plastic soil model in “QzPile” to simulate a concrete pile 48 m long, diameter 0.80 m embedded in sand (shear angle 27°, K=0.55) till the depth of 41 m then “rock” elastic perfectly plastic. For the rock I used the following parameters; skin stiff. 340000 kN/m3, end bear.stiff. 830000 kN/m3, ultimate skin fric. 400 kPa, ultimate end bear. 1800 kPa. The program give me strange results in the “Ult-fric depth” graph: Ultimate skin friction and Total , Shaft and Toe values seems moltiplied for 1000. Thanks in advance, Andreas.

    1. Yong

      Hi Andreas, can you please send me your file? thanks.

    2. Yong

      Hi Andreas, the unit display error for elastic perfectly plastic soil has been fixed in v0.1.1. Thanks for reporting this error.

      1. Andreas

        Hi Yong, I tried the last upgrade, now the results are ok. Thanks Andreas

  3. Khaldoun

    Can you share with me an example of Qz pile.

    Thanks in advane.

    1. Yong

      Hi Khaldoun, I have sent you a few QzPile example files. You can open and run these files by click F5. You can also run the default example to familiarize yourself with the program. Please let me know if you need any help.

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