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  • Posts

    • Hallo.   We either use CPT results directly with D.7. annex of EN 1997-2 to calculate the resistance of a pile and then check settlement with characteristic loads with elastic space method.   Another way is we draw the CPT result diagrams from all bores next to each other and then superimpose them on onto another to visually inspect and decide on the "mean" values for all "layers". These mean values then are used with the D.7. annex.
      Best of luck!
    • Where is the spreadsheet? Please mail me, if you have the spreadsheet to gurudevpatil112@gmail.com Thank you in advance.
    • Thanks for the document. When we calculate same for S275 with "4.5.3.3 Simplified method for design resistance of fillet weld". The k factor comes out to be 0.58. What is your opinion. Also as per EN 1993-1-8 4.1.(1) "The provisions in this section apply to weldable structural steels conforming to EN 1993-1-1 and to material thicknesses of 4 mm and over. " "For welds in thinner material reference should be made to EN 1993 part 1.3." So I think table 4.1 of your doc should revised for the same. Regards  Gurudev
    • Can anyone tell me where can i download the spreadsheet?  I really cannot find it. Appreciate someone can guide me my email address is bushraghzl@yahoo.com
    • CPT results give you the cone resistance and the local or total friction. Somethimes also the internal friction angle or some other parameters are mentioned.   I was talking to some other engineers about how the CPT results are used and I got some different methods. 1) using the exact values of the CPT result For the bearing capacity of a pile, we use a xls spreadsheet where we have to input the coneresistance. So we input all the CPT-values of the cone resistance to the end of the CPT test. We also have a similar spreadsheet for the bearing capacity of a fondation slab, retaining wall,..   2) using a "mean" CPT result A collegue doesn't use the exact values of the CPT results but he divides the results in "blocks with +-equal results". Then he uses these mean block-results in the xls spreadsheets.   3) using "soil-type" based on CPT results A collegue (another company) uses the CPT results to determine the soil type (sand, clay,...) or layers of soil-type (soil behavior charts). Then he uses this soil-type in his GEO software with predetermined soil types. So he doesn't input CPT results directly but only the soil types.   4) using "soil-type" in 3D FEM software Similar to (3) but using the soil-type as the "soil" in an 3D FEM analysis.   I was wondering what others are doing with CPT results.
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