摘要
随着桩基动测技术在各国的推广,应力波理论已应用于桩基质量检测的多个领域。文章通过建立桩土系统的动力学模型,利用行波理论求得了该定解问题的数值解,编制了计算程序,对高应变理论进行了数值计算模拟,通过拟合计算:分析高应变动测桩的承载力,得到了土阻力的分布结果。结合实例,对模型的应用进行了研究,并将计算结果与已知拟合结果进行了对比分析,可知在拟合波形上取得了较好的一致性,拟合所得承载力与已知结果相接近。
With the implementation of dynamic testing of pile around the world, theory of stress wave has been applied in many fields in the quality detection of building foundation piles. In this paper, dynamics model of pile and soil system was established. The numerical solution of the wave equation was solved by the traveling wave theory. A computer program was written. Numerical computation models were established for high strain theory respectively. By matching computation. The bearing capacity of pile analyzed by high strain method was studied and the result of soil resistance distribution was gained . Analysis of the application of model was carried out by using actual work. The results of numeration and the known matching results were compared, which indicated that this paper acquired good accordance in signal matching, and the bearing capacity by matching is close to known results.
出处
《工程地球物理学报》
2008年第2期215-221,共7页
Chinese Journal of Engineering Geophysics
关键词
桩基动测
高应变
波动方程法
拟合
行波
dynamic testing of pile
high strain
wave equation method
matching
traveling wave
