岩土力学2011，Vol.32Issue(8)：2459-2466,8.
用于桩基础计算的Daubechies小波新型联系系数研究
Study of new type of Daubechies wavelet connection coefficient used in computation of pile foundations
摘要
Abstract
Based on the special characteristic of multi-resolution of wavelet function, Daubechies wavelet has strong superiority in solving some engineering problems such as high stress gradient, strong nonlinearity and some other singular problems in engineering. But because of the limited computation scope of connection coefficient, Daubechies wavelet finite element method has only been used in the computation of bar, beam, and beam on elastic foundations with a constant foundation coefficient. In the computation of pile foundations based on 'm' theory, the foundation coefficient is assumed as linear function. So the foundation coefficient of load in deflection curve differential equation is a linear variable. But the computation methods or results of relative connection coefficient have not been proposed in any documents up till now. Thus Daubechies wavelet method cannot be employed to conduct the computation of pile foundations based on 'm' theory. Aiming at the feature of computation model of pile foundations, a new type of connection coefficient is put forward based on 'm' theory. Thus Daubechies wavelet is applied to the computation of pile for the first time. Typical models of pile foundations are computed using the new type of connection coefficient mentioned above. The calculation result verifies the correctness of the educed new type of wavelet connection coefficient; and it is shown that pile foundations can be calculated with high accuracy by using wavelet finite element method.关键词
小波有限元法/Daubechies小波/桩基础/新型联系系数Key words
wavelet finite element method/ Daubechies wavelet/ pile foundation/ new type of connection coefficient分类
建筑与水利引用本文复制引用
陈雅琴,张宏光,党发宁..用于桩基础计算的Daubechies小波新型联系系数研究[J].岩土力学,2011,32(8):2459-2466,8.基金项目
国家自然科学基金资助(No.51008247). （No.51008247）
