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《铁路标准设计通讯》1974年第3期长桩侧向抗力的计算(以下简称“抗力计算”)一文中,确定桩侧最大抗力点位置和最大抗力值的公式,虽然推理简单、明确,但由于要进行内插计算,所以应用时很不方便,更主要的是按照“抗力计算”一文的公式和系数来确定桩侧最大抗力点位置和最大抗力值,误差很大,甚至得出错误的结果,使该办法不能推广应用。本文建议用桩侧抗力增量推求最大抗力位置,用抗力系数计算最大抗力值的方法,可避免上述缺点。“抗力计算”一文利用高等数学中求极值
In the calculation of the lateral resistance of long piles (hereinafter referred to as “resistance calculation”) in “Railway Standard Design Newsletter” No. 3,1974, the formula for determining the position of the maximum resistance point on the pile side and the maximum resistance value, although the reasoning is simple and clear, Because it is necessary to perform interpolation calculation, it is inconvenient to use. The main point is to determine the position of the maximum resistance point and the maximum resistance value on the pile side according to the formula and coefficient of “resistance calculation”. The error is very large, and even results in an error. As a result, this method cannot be applied widely. In this paper, it is suggested that the maximum resistance position be deduced from the pile-side resistance increment, and the maximum resistance value can be calculated by using the resistance coefficient to avoid the above disadvantages. The “resistance calculation” article uses advanced mathematics to find extremum