摘要
本文在Van Der Veen提出的描述单桩静载试验P—S曲线的数学模型的基础上,建立了一个新的数学模型。并采用优化分析方法进行参数计算。给出了满足极限荷载定义的“理论极限荷载”计算公式和满足我国有关规范的工程用极限荷载计算公式。与实际工程试验的结果对比表明,本模型及参数计算方法,至少对桩径在90cm以内的各种桩是合适的。
This paper advances a new formula to describe P-S curve of static load test of pile based on Mr. Van der Veen's formula (1953) and an optimization technique adopted for calculating four parameters of the formula on the personal computer.
The test result shows that the formula and tbe calculating method are better within 90 cm diameters of pile at least. The paper also advances new conceptions of 'theory ultimate load' P_(tu) and 'engineering ultimate load' P_(Au) and puts out the calculating equations (14) and (17).
出处
《建筑科学》
1989年第1期35-40,共6页
Building Science
