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| 硬壳层软土地基竖向附加应力扩散的数值分析 | |
| 引用本文： | 王晓谋,尉学勇,魏进,牛有来. 硬壳层软土地基竖向附加应力扩散的数值分析[J]. 长安大学学报(自然科学版), 2007, 27(3): 37-41 |
| 作者姓名： | 王晓谋 尉学勇 魏进 牛有来 |
| 作者单位： | 1. 长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064 2. 中交第一公路勘察设计研究院,陕西,西安,710075 3. 河南省济源市公路管理局,河南,济源,454650 |
| 摘 要： | 应用有限元方法分析了硬壳层厚度、变形模量和路堤等效荷载的宽度对硬壳层软土地基竖向附加应力扩散的影响,并计算出考虑上述影响因素的软土地基的应力扩散角。结果表明:竖向附加应力扩散范围随硬壳层的厚度而扩大,随着硬壳层变形模量的增加而扩大;当硬壳层厚度和变形模量一定时,随着荷载作用宽度的增加,其扩散竖向附加应力的作用在减小。 |
| 关 键 词： | 道路工程 软土地基 硬壳层 竖向附加应力 应力扩散 有限元 |
| 文章编号： | 1671-8879（2007）01-0037-05 |
| 收稿时间： | 2006-04-08 |
| 修稿时间： | 2006-04-08 |
Numerical analysis of vertical additional stress spreading on soft clay foundation with dry crust |
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| WANG Xiao-mou,YU Xue-yong,WEI Jin,NIU You-lai. Numerical analysis of vertical additional stress spreading on soft clay foundation with dry crust[J]. JOurnal of Chang’an University:Natural Science Edition, 2007, 27(3): 37-41 | |
| Authors: | WANG Xiao-mou YU Xue-yong WEI Jin NIU You-lai |
| Abstract: | With the finite element method,the spreading of vertical-additional-stress on soft clay foundation was studied,the effect of the thickness and the deformation modulus of dry crust,and the width of the equivalent load of the road embankment on the spreading were analyzed,and the spreading angle was obtained.The result indicate that: the spreading range of vertical-additional-stress will expand with the increase of the thickness and the deformation modulus of the dry crust;when the thickness and deformation modulus is fixed,the spreading effect of dry crust will decrease with the increase of the width of equivalent load.1 tab,9 figs,10 refs. |
| Keywords: | road engineering soft clay foundation dry crust vertical-additional-stress spreading FEM |
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