上海软土地区的桩垂直静荷载试验成果分析——单桩的入土深度与极限承载力的相关特征

THE COREELAIVE CHARACTERISTIC BETWEEN THE PENFTRATION DEPYH OF A SINGLE PILE AND ULTIMATE BEARING CAPACITY

本文通过141根试桩承载力分析,论述了单桩入士深度与承载力的相关特征,从而论证了选用桩断面与稍密一密实(浅或深)砂类土作为桩基持力层的合理性。近一步分析了影响桩承载力值的几个因素,并提供选择合理的桩断面、桩尖持力层和入士深度的可能性,认为能获得明显的工程与经济效果。

Based on the analysis ot the bearing capacity of 141tested piles,the auther deals with the correlative characteristic between the depth ot penetration of a single pie and its ultimate bearing capacity.This shows that it is reasonable to choose the pile section and the slightly compactcompact(shallow and deep)saiidy soil as the bearirig stratum. After analyzing the factors that wouldaffect the value of the pile bearing capacity,tae author furthermore puts forward the possibility to selectihe reasonable section of the pile, the supporting layer for the pile tip and the depth of penetration is believed that good b eenefit can be gained in engineering and economy.