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用数理统计的方法引入一个拟合曲线的质量指标,对含有粗差的实测数据在其可能的取值范围内,以一定的步长用最小二乘法进行曲线拟合,求得对应于质量指标最小值的拟合曲线和实测数据的修正值。然后对拟合后的曲线进行精度和可靠性分析,若精度和可靠性分析均在可接受的范围内时,用所求得的最优的拟合曲线函数,通过外推计算可求得单桩承载力预测值。
Using the method of mathematical statistics to introduce the quality index of a fitting curve, the measured data with the gross error is fitted with the curve of the least square method with certain steps within the range of its possible value, and the corresponding curve of the quality index The fitting curve of the minimum value and the correction value of the measured data. Then the accuracy and reliability of the fitted curve are analyzed. If the accuracy and reliability analysis are within the acceptable range, the optimal fitted curve function can be obtained by extrapolation Predicted value of pile bearing capacity.