| 沟埋式涵洞垂直土压力的数值模拟 |
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| 引用本文： | 郝国红,李永刚.沟埋式涵洞垂直土压力的数值模拟[J].山西水利科技,2008,12(1):77-78,80. |
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| 作者姓名： | 郝国红 李永刚 |
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| 作者单位： | 太原理工大学水利学院,山西太原,030024 |
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| 摘 要： | 利用大型有限元软件ANSYS,对刚性矩形沟埋式涵洞进行施工过程模拟,分析涵洞土压力的变化规律,讨论沟槽宽度及地基刚度对洞顶垂直土压力的影响.结果表明:方形涵洞顶部具有两边大、中间小的土压力分布;在刚性地基条件下,沟槽宽度较小时,洞顶土压力系数单调减小,沟槽宽度较大时,洞顶土压力系数呈先增后减的趋势;地基弹性模量增大时,涵洞顶部的土压力增大.
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| 关 键 词： | 沟埋式涵洞 有限元 土压力 弹性模量 沟埋式涵洞 垂直土压力 数值模拟 Culvert Pressure Soil Vertical Simulation 弹性模量 地基条件 趋势 调减 土压力系数 土压力分布 涵洞顶部 结果 影响 地基刚度 沟槽宽度 变化规律 |
| 文章编号： | 1006-8139（2008）01-77-02 |
| 收稿时间： | 2007-12-06 |
| 修稿时间： | 2007年12月6日 |
Numerical Simulation of Vertical Soil Pressure on Ditch Burying Culvert |
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| HAO Guo-hong,LI Yong-gang.Numerical Simulation of Vertical Soil Pressure on Ditch Burying Culvert[J].Shanxi Hydrotechnics,2008,12(1):77-78,80. |
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| Authors: | HAO Guo-hong LI Yong-gang |
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| Affiliation: | HAO Guo-hong LI Yong-gang |
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| Abstract: | Based on finite element software ANSYS,with simulation of construction process to rigid rectangular ditch burying culvert,the paper analyzes the law of soil pressure on culvert and discusses the influence of groove width and foundation stiffness to vertical soil pressure on culverts.The results show that: soil pressure on a box culvert is larger in sides and smaller in the middle;In the conditions of rigid foundation,when the groove width is smaller,the soil pressure coefficient monotonically decreases,when the groove width is larger,soil pressure coefficient first increases and then decreases;With the increase of foundation flexibility module,soil pressure on top of culvert increases. |
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| Keywords: | ditch burying culvert finite element soil pressure flexibility module |
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