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The paper presents the capacity of driven precast pile prediction method based on the results of CPT tests. The pile settlement equal to 10% of pile diameter is assumed as a criterion of pile capacity. The method gives also a unit skin friction and a unit base resistance for intermediate pile settlements. This allows us to simulate the load-settlement curve and to calculate the axial stiffness of the pile in any load range. For the purpose of analysis the calculation file is created which makes it possible to compare the results of calculation with those of the field-test. The comparative analysis of 37 square 0.3 m × 0.3 m and 0.4 m × 0.4 m piles in clays and sands was carried out. The comparison shows a good agreement between the predicted and actual capacities and a satisfactory agreement between the predicted and actual slopes of the load-settlement curve in the range up to 40% of the ultimate pile capacity.
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Tom
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77--86
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Bibliogr. 13 poz.
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autor
Bibliografia
- [1] ABU-FARSAKH M.Y., TITI H.H., Assessment of direct Cone Penetration Test methods for predicting the ultimate capacity of friction driven piles, Journal of Geotechnical and Geoenvironmental Engineering, 2004, 130(9), 935–944.
- [2] ALTAEE E., FELLENIUS B.H., EVGIN E., Axial load transfer for piles in sand. I: Tests on an instrumented precast pile, Canadian Geotechnical Journal, 1992, 29, 11–20.
- [3] BUSTAMANTE M., GIANESELLI L., Pile bearing capacity predictions by means of static penetrometer CPT, Proceedings of the 2-nd European Symposium on Penetration Testing, ESOP-II, Amsterdam, 1982, Vol. 2, 493–500.
- [4] ESLAMI A., FELLENIUS B.H., Pile capacity by direct CPT and CPTu methods applied to 102 case histories, Canadian Geotechnical Journal, 1997, 34, 886–904.
- [5] FELLENIUS B.H., The analysis of results from routine pile load tests, Ground Engineering, 1980, Vol. 13, No. 6, 19–31.
- [6] German Society for Geotechnics, 2007. Empfehlungen des Arbeitskreises “Pfähle”, Ernst&Sohn, Berlin, 2007.
- [7] JARDINE R., CHOW F., OPERY R., STANDING J., ICP design method for driven piles in sands and clays, Thomas Telford Ltd., London, 2005.
- [8] KITIYODOM P., MATSUMOTO T., KANEFUSA N., Influence of rection piles on the behaviour of a test pile in static load testing, Canadian Geotechnical Journal, 2004, 41, 408–420.
- [9] PN-83/B-02482 (1983) Fundamenty Budowlane, Nośność pali i fundamentów palowych, Polish Standard Code.
- [10] De RUITER J., BERINGEN F.L., Pile foundations for large North Sea structures, Martime Geotechnology, 1979, 3(3), 267–314.
- [11] WHITE D.J., BOLTON M.D., Comparing CPT and pile base resistance in sand, Proceedings of the Institution of Civil Engineers – Geotechnical Engineering, 158, GEI: 3–14.
- [12] YANG L., LIANG R., Incorporating set-up into reliability-based design of driven piles in clay, Canadian Geotechnical Journal, 2006, 43, 946–955.
- [13] ZHANG L.M., XU Y., TANG W.H., Calibration of models for pile settlement analysis using 64 field load tests, Canadian Geotechnical Journal, 2008, 45, 59–73.
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Bibliografia
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bwmeta1.element.baztech-article-BPW8-0016-0032