| 以土固土路堑边坡柔性支护技术有限元极限分析研究 |
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| 引用本文： | 黄世武,刘明维. 以土固土路堑边坡柔性支护技术有限元极限分析研究[J]. 公路交通科技, 2009, 26(3) |
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| 作者姓名： | 黄世武 刘明维 |
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| 作者单位： | 1. 广西壮族自治区交通基建管理局,广西,南宁,530021
2. 重庆交通人学河海学院,重庆,400074 |
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| 基金项目： | 广西交通厅基建管理局资助项目 |
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| 摘 要： | 以某路堑边坡为例，采用有限元极限分析方法，分别对无支挡、填土压坡支挡及条石挡墙支挡条件下边坡稳定性及坡体变形情况进行模拟分析，从工作机理上验证了填土加固技术——以土固土的柔性支护技术对地质条件较差、坡高不大的路堑边坡的适应性，并将其应用于实际工程。实践表明，与传统刚性支护（条石抗滑挡墙）加固方案比较，采用以土固土柔性支护方案不仅能极大提高路堑边坡的稳定安全系数，减少坡体的水平位移以及更好适应坡体变形，克服传统刚性支护容易造成的结构开裂、坡体变形过大等问题。
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| 关 键 词： | 道路工程 路堑边坡 有限元强度折减法 安全系数 柔性支护 极限状态 |
Study on the Cutting Slope Flexible Support Technology of Fixing Soil with Soil with Finite Element Limit Analysis |
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| HUANG Shiwu,LIU Mingwei. Study on the Cutting Slope Flexible Support Technology of Fixing Soil with Soil with Finite Element Limit Analysis[J]. Journal of Highway and Transportation Research and Development, 2009, 26(3) |
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| Authors: | HUANG Shiwu LIU Mingwei |
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| Affiliation: | 1.Guangxi Communications Infrastructure Construction Administration Bureau;Nanning Guangxi 530021;China;2.School of River and Ocean Engineering;Chongqing Jiaotong University;Chongqing 400074;China |
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| Abstract: | Taking cutting slope for example,the slope stability and deformation was simulated with finite element limit analysis in the case of unretaining structure,retaining structure of "pressing slope with soil" and retaining structure of "fixing slope with boulder strip retaining wall".The flexibility support of "fixing soil with soil",which was applied to the cutting slope of the worse geological condition and light grade,was proved on the working mechanism and applied to practical project.The experience indicat... |
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| Keywords: | road engineering cutting slope strength reduction FEM safety factor flexible support critical state |
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