复合地基桩土应力比的简化计算与经验估算

在缺乏经验的情况下选取桩土应力比值比较麻烦,本文考虑正常使用工况下的地基处于似弹性体状态,将文克尔弹性地基模型应用于复合地基的散体材料增强体和桩间土体,推导出简易的桩土应力比计算公式,并以此为出发点讨论一些有关复合地基通常做法的内在道理,对于地区经验的总结提高具有启发意义。

Simple Calculation and Empirical Estimation on Pile Soil Stress Ratio of Composite Ground

In the case of poor experience, the selection of pile soil stress ratio is difficult. According the ground under normal using conditions is very similar to the elastic body, Appling the Winkler elastic ground model to the loose material reinforced body（pile） and soil of the composite ground, Deducing the simple formula of The pile soil stress ratio, Discussing the internal reason of some conventional practices based on the formula ,This may be beneficial for the summa- ry and improvement of area experiences.