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1975年《铁路工程技术规范·第二篇桥涵》(以下简称《桥规》)附录十五详细介绍了墩台基础考虑土的弹性抗力的计算方法,以公式等列出了基底最大和最小压应力的计算式。很明显,上述这些公式仅在基底竖直力的偏心 e 小于或等于基础底面核心ρ时才适用。因此《桥规》附15—12明确指出:“对于支立于岩石面上且偏心大干基底核心的基础,则应按应力重分布计算。”至于此时怎样按应力重分布进行计算?《桥规》没有指
1975, “Railway Engineering Specifications Part II Bridge” (hereinafter referred to as the “bridge gauge”) Appendix XV details the calculation method of abutment foundation considering the elastic resistance of soil, with the formula lists the maximum and minimum substrate pressure Calculation of stress. Obviously, the above formulas apply only when the eccentricity e of the vertical force of the base is less than or equal to the base bottom core ρ. Therefore, “Bridge Regulations” Appendix 15-12 clearly states: “For basing on the rock surface and eccentric big dry basement, it should be calculated according to stress redistribution.” As to how to calculate the stress redistribution at this moment? Bridge regulations "did not mean