Abstract：Due to the limitations of estimation methods，it is always difficult to determine proper values of vertical ultimate bearing capacity of single pile Qu for these piles which are not reaching failure states during pile load tests. A new approach is proposed to assess Qu rationally. The exponential functions are used to fit the relationship between load exerted on top of tested piles and the corresponding settlements. The upper bound value Q0 for Qu is defined and designated to the point within the curve of fitting functions where the tangent slope is equal to 0.129 mm/kN. In the range of zero to Q0，the golden section is adopted to obtain the value of Qu. The rationality of this new method is proved through the application of engineering.
杨育文. 黄金分割法评估单桩竖向极限承载力[J]. 岩石力学与工程学报, 2009, 28(S2): 3577-3584.
YANG Yuwen . ESTIMATION OF ULTIMATE BEARING CAPACITY OF SINGLE PILE WITH GOLDEN SECTION. , 2009, 28(S2): 3577-3584.
