| 重塑土壤承压模型的建立与试 |
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| 引用本文： | 姚艳,丁启朔,周俊.重塑土壤承压模型的建立与试[J].农业机械学报,2010,41(3):40-45. |
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| 作者姓名： | 姚艳 丁启朔 周俊 |
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| 作者单位： | 南京农业大学工学院,南京,210031 |
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| 基金项目： | 国家自然科学基金资助项目，江苏省博士后基金资助项目，中国博士后特别基金资助项目 |
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| 摘 要： | 使用小面积压板在重塑软粘土中进行压板沉陷试验,分析压板尺寸、土壤含水率、土壤密度及样筒筒径对土壤承载力的影响.试验曲线拟合表明重塑土壤的承压特性满足二阶多项式模型.由拟合方程分析可知,模型各项系数随含水率呈对数变化、随土样密度呈线性变化、随着密度和含水率的耦合关系呈对数变化,筒径变化使二次项系数符号发生变化.大田实际土壤的试验表明,其承压曲线也满足二阶多项式模型.
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| 关 键 词： | 重塑土壤 承压特性 压板沉陷 试验 |
-sinkage Characteristic Model of Remolded Soil |
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| Yao Yan,Ding Qishuo,Zhou Jun.-sinkage Characteristic Model of Remolded Soil[J].Transactions of the Chinese Society of Agricultural Machinery,2010,41(3):40-45. |
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| Authors: | Yao Yan Ding Qishuo Zhou Jun |
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| Institution: | School of Engineering/a>;Nanjing Agricultural University/a>;Nanjing 210031/a>;China |
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| Abstract: | A plate sinkage test was conducted on remolded soft soil with small-sized plates to determine the effects of plate size,soil moisture content,soil bulk density and the diameter of sampling cores on the soil bearing capacity.Curve fitting on the resultant data revealed a 2nd order polynomial model of remolded soil bearing capacity.Further analysis on the fitted equation revealed a trend of logarithmic variation of each coefficient of the model with moisture content,a linear trend with soil bulk density,a log... |
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| Keywords: | Remolded soil Pressure-sinkage characteristics Plate sinkage Test |
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