摘要
就单桩沉降计算方法——Geddes法和剪切位移传递法的原理、模型建立、参数选用进行了介绍,经对比分析得出如下结论:剪切位移传递法相对Geddes法而言,具有求解范围更广、参数易确定、接近桩的实际工况、能较好的反映荷载传递情况等优势,但因其计算模型没有考虑土的连续性,在推广到群桩基础时,无法较好反映实际工况;而Geddes法建立在弹性理论基础上,虽能较好地被推广到群桩基础的分析中,但对桩的刚性有较高要求,适用范围有限。本文的分析有助于我们根据实际情况选择适宜的计算方法。
The principle model and parameters selection of Geddes method and the shear displacement method which are the calculation methods for single pile settlement are introduced and comparative analysised, and comes to the conclusion that relative to Geddes method, the shear displacement method has the ad- vantages which include wider range of solving, parameters easy to determine, close to actual working conditions of the pile, better reflect the load transfer and so on, but it＇ s unable to better reflect the actual working condition of the pile group foundation due to its calculation model neglects the continuity of soil. On the other hand, Geddes method is established on the basis of the elastic theory and could be used to analysis pile group foundation, but it has a higher require- ment for the stiffness of the pile and the applicable range is limited. The analysis helps us to choose the appropriate calculation method according to the actual situation.
出处
《福建建筑》
2013年第6期93-95,共3页
Fujian Architecture & Construction
关键词
单桩沉降计算
Geddes法
剪切位移传递法
比较分析
Seitlement calculation of single pile
Geddes method
The shear displacement method
Comparative analysis
