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| 突变理论在单桩竖向承载力确定中的应用 | |
| 引用本文： | 崔树琴,张远芳,李传镔,候新强.突变理论在单桩竖向承载力确定中的应用[J].水利与建筑工程学报,2006,4(2):19-22. |
| 作者姓名： | 崔树琴 张远芳 李传镔 候新强 |
| 作者单位： | 1. 新疆农业大学水利与土木工程学院,新疆,乌鲁木齐,830052 2. 新疆城乡岩土勘察设计研究院,新疆,乌鲁木齐,830002 3. 铁道部第一勘察设计院分院,新疆,乌鲁木齐,830011 |
| 摘 要： | 灌注桩竖向承载力确定的方法较多,但因延性破坏和脆性破坏难以区分,没有一个理想的公式。针对此问题,拟定了灌注桩受竖向荷载时的荷载与位移的关系曲线,并将其运用于突变理论,导出了单桩竖向承载力的计算公式,给出了延性破坏与脆性破坏的界定标准。 |
| 关 键 词： | 突变理论 尖点突变 单桩竖向承载力 稳定性分析 本构关系 |
| 文章编号： | 1672-1144(2006)02-0019-04 |
| 修稿时间： | 2005年10月30 |
Application of Catastrophe Theory in Ascertainment of Vertical Bearing Capacity of Single Pile |
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| CUI Shu-qin,ZHANG Yuan-fang,LI Chuan-bin,HOU Xin-qiang.Application of Catastrophe Theory in Ascertainment of Vertical Bearing Capacity of Single Pile[J].Journal of Water Resources Architectural Engineering,2006,4(2):19-22. | |
| Authors: | CUI Shu-qin ZHANG Yuan-fang LI Chuan-bin HOU Xin-qiang |
| Abstract: | Although many kinds of theories are used to ascertain vertical bearing capacity of cast-in-place pile,it is difficult to distinguish ductility failure and brittle failure with these theories,and there is no the best formulation.To solve this problem,the load-displacement curve is supposed when the cast-in-place pile bears vertical load,and the curve is applied for the catastrophe theory.As a result,the formulation of the vertical bearing capacity of single pile is deduced,meanwhile,the dividing line between the ductility failure and brittle failure is demarcated. |
| Keywords: | catastrophe theory cusp catastrophe vertical bearing capacity of single pile analysis of stability constitutive relation |
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