高应变拟合法判定单桩竖向承载力的应用探讨

High Strain Dynamic Testing to Determine the Application of Vertical Bearing Capacity of Single Pile

为使桩—土模型能够比较真实模拟工程桩实际情况,更加准确拟合计算单桩承载力,通过对工程实例的分析,说明了地层分布及性质是影响单桩承载力的重要因素,合理选取符合土层真实性状的参数,采用人机结合的方法反复计算拟合,虽然拟合度不一定比自动拟合法高,但是其结果比采用自动拟合法更接近工程桩的实际情况,拟合计算的承载力值更准确。

in this paper, the pile-soil model can simulate the actual situation of engineering piles , the calculation of bearing capac-ity of single pile is more accurate fitting , through analyzing the engineering example , the stratigraphic distribution and properties are the important factors that affect the bearing capacity of single pile , reasonable selection of soil layer with real characters , repeated calculation fitting methods the combination of human and computer , although the fitting degree is not necessarily better than the au-tomatic fitting high, but the results than the use of automatic quasilegitimate closer to actual situation of engineering pile , the bearing capacity of the fitting calculation more accurate .