减少动测法确定单桩承载力误差的有关途径

通过比较静载与动力试验(大、小应变)两种方法在确定单桩承载力方面的区别,分析不同测试方法所存在的误差;对减少误差的途径及提高动、静对比效果等问题进行讨论。同时本文还研究了桩基质量对桩、土受力体系的影响及其与承载力的关系等问题,有关结果提高检测水平具有一定意义。

DISCUSSION ON THE EFFECTIVE WAYS OF REDUCINGERROR IN DETERMINING THE BEARING CAPACITY OFA SINGLE PILE BY DYNAMIC MEASUREMENT METHODS

In this paper, by comparing the difference between static and dynamic pile tests (large and small strain methods )for determining the bearing capacity of a single pile, the principles of different test methods and existing their errors are analysed, some problems including the causes of producing errors, the ways of reducing errors and the effects of raising the correlation of dynamic and static pile tests are discussed. Moreover, the influences of quality of pile foundation on pile-soil loading system and the relations between the quality of pile and the bearing capacity and other problems are also studied in this paper and some results indicate the significance for improving the detection standard.