高应变动力试桩对摩擦型桩检测的研究分析

高应变动力试桩是检测基桩承载力是否能够满足设计要求的重要手段,并在基桩检测领域得到广泛应用。但在使用曲线拟合法计算承载力时,由于影响分析结果的因素很多,比如信号曲线的判断;岩土阻力的分布;检测人员的相关经验等,造成检测结果准确度下降。根据高应变检测试验相关经验,通过基桩动测仪进行分析,研究总结出摩擦型桩在各个土层状态下的曲线特征,进行类比分析,以及在曲线拟合时,相关参数确定的定性定量方法。

Research and Analysis of High Strain Dynamic Testing on Friction Piles

High strain dynamic testing on pile Is tne impolc~H~ Whether meet the design requirements or not. This test is widely used in the pile testing. When curve fitting method is used to calculate bearing capacity there are many factors which can affect the results of the analysis, such as the judgment of the signal curve, the distribution of rock and soil resistance, testing personnel related experience cause the loss of accuracy of test results. Accumulating relevant experience by reading books and the high strain dynamic tests, I researched induction type friction pile is summarized in the curve characteristics of various soil conditions, analogy analysis, and the curve fitting, right and quantitative methods of the determination of related parameters in the use of PDS-PS pile diagnosis system made by WuHan Yantu xing science and technology development Co., Ltd.