| 湿热地区高地下水位下低填路基平衡含水率的波动效应 |
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| 引用本文： | 郭秋金.湿热地区高地下水位下低填路基平衡含水率的波动效应[J].路基工程,2022,0(2):63-68. |
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| 作者姓名： | 郭秋金 |
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| 作者单位： | 福州市规划设计研究院集团有限公司，福州 350108 |
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| 摘 要： | 以福建省典型气候和路基土为例,采用理论分析、数值模拟和室内模拟试验三种方法,分析温度引起路基平衡含水率的波动效应.结果表明:考虑温度效应的路基平衡含水率公式计算结果与数值模拟结果接近;福建省路基平衡含水率最大波动范围在2％以内;路基平衡含水率随温度与压实度的增加呈下降趋势.说明采用考虑温度的基质势间接反映温度势的影响,...
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| 关 键 词： | 高地下水位 低填路基 平衡含水率 波动效应 湿热地区 |
| 收稿时间： | 2021-06-11 |
Fluctuation Effect of Equilibrium Moisture Content of Low-filled Subgrade under High Groundwater Level in Moist Heat Areas |
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| Abstract: | In relation to typical climate and subgrade soil in Fujian province, the fluctuation effect of temperature induced equilibrium moisture content of subgrade has been analyzed by theoretical analysis, numerical simulation and laboratory simulation test. The results show that the calculated results of equilibrium water content formula of subgrade considering temperature effect are close to the numerical simulation results. The maximum fluctuation range of equilibrium moisture content of subgrade in Fujian province is within 2 %. The equilibrium moisture content of subgrade decreases with the increase of temperature and compactness. It is shown that the equilibrium water content of subgrade can be approximated by using the matrix potential considering temperature to reflect the influence of temperature potential indirectly. The fluctuation amplitude of equilibrium water content of subgrade is effectively reduced by increasing compaction degree of subgrade fill. |
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