浸水与未浸水膨胀土p-y曲线的比较分析

Comparative Analysis of p-y Curves in Waterlogged and not Waterlogged Expansive Soil

基于对浸水与未浸水膨胀土中水平受荷桩的模型试验研究,得到了2种工况下桩身弯矩和桩侧土抗力,通过分析其变化规律进一步得到了各深度下的实测p-y曲线族。在分析现有p-y曲线的基础上,分别建立了浸水与未浸水膨胀土的p-y曲线理论表达式,并对两理论p-y曲线进行了比较分析,得到了一系列结论。研究结果可为膨胀土中水平受荷桩的计算分析提供一定的理论基础。

Based on model test research on laterally loaded pile embedded in waterlogged and not waterlogged expansive soil,the pile bending moment and lateral soil resistance under the two kinds of working conditions are obtained. Through further analysis of the variation,the measured p- y curves under various depths are got. On the basis of analyzing the existing p- y curves,this paper respectively established the p-y curve theory expressions in waterlogged and not waterlogged expansive soil,and compares the two theory p-y curves,a series of conclusions are obtained. the results of this paper can provide a theoretical basis for the calculation and analysis of laterally loaded pile which embedded in expansive soil.