多层地基横向受荷桩简化分析方法的改进与探讨

在考虑桩身挠曲曲线及深度影响的多层地基横向受荷桩简化分析方法的基础上，抓住该方法计算需反复迭代、计算过程复杂等问题，利用数值分析结果，建立了综合桩土变形系数与地基土比例系数的拟合经验公式，由此，简化了多层地基横向受荷桩分析过程，并对多层地基横向受荷桩简化分析方法进行了有效的改进；同时，通过探讨地基土层厚度与横向荷载对地基土比例系数的影响及其不同计算方法的差异性，阐明了本文方法的可靠性。最后，通过工程实例计算与其他分析方法比较，表明本文方法能够满足工程计算要求。

Improvement and Discussion of Simply Analyzed Method of Laterally Loaded Piles in Multi-subgrade

On the basis of the simply analyzed method of laterally loaded piles, in which the effects of depth and piles shaft deflection curve are considered and which has the disadvantage of repeated iteration in calculation, an experiential formula, which expresses pile-soil deformation coefficient and subgrade soil ratio coefficient, is established by curve fitting in this paper. And the simply analyzed method of laterally loaded piles in mutisubgrade is improved and it doesn't need repeated iteration. At the same time,the dependability of the method in this paper is illuminated by discussing the effects of different subgrade soil thicknesses and lateral loads and the distinction of different calculation methods. Finally, in comparison with the other methods, the calculated results of engineering sample indicate that the method in this paper is satisfied for engineering calculation.