| 青藏铁路路基下部土体水热过程变化的监测研究 |
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| 引用本文： | 李明永,吴青柏,刘永智.青藏铁路路基下部土体水热过程变化的监测研究[J].冰川冻土,2011,33(3):546-550. |
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| 作者姓名： | 李明永 吴青柏 刘永智 |
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| 作者单位： | 中国科学院 寒区旱区环境与工程研究所 冻土工程国家重点实验室,甘肃 兰州,730000;中国科学院 寒区旱区环境与工程研究所 冻土工程国家重点实验室,甘肃 兰州,730000;中国科学院 寒区旱区环境与工程研究所 冻土工程国家重点实验室,甘肃 兰州,730000 |
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| 基金项目： | 中国科学院西部行动计划项目(KZCX2-XB2-10); 国家自然科学基金创新群体项目(40821001);国家自然科学基金杰出青年基金项目(40625004)资助 |
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| 摘 要： | 修筑路基后土体水分变化是影响路基稳定性的重要因素,然而关于路基土体水分变化认识是极为缺乏的.采用了pF-meter传感器来监测土体温度和水分变化,获得了近3 a的连续监测数据.结果表明,pF-meter较好地反映了路基土体温度和水分变化特征以及土体水分迁移特征.但是,pF-meter传感器不能定量地给出土体水分变化,这...
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| 关 键 词： | pF-meter传感器 青藏铁路 路基水热过程 |
Monitoring the Soil Heat-Moisture Processes within an Embankment in Qinghai-Tibet Railway |
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| LI Ming-yong,WU Qing-bai,LIU Yong-zhi.Monitoring the Soil Heat-Moisture Processes within an Embankment in Qinghai-Tibet Railway[J].Journal of Glaciology and Geocryology,2011,33(3):546-550. |
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| Authors: | LI Ming-yong WU Qing-bai LIU Yong-zhi |
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| Institution: | LI Ming-yong,WU Qing-bai,LIU Yong-zhi(State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China) |
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| Abstract: | Soil moisture change is one of the important factors of affecting roadbed stability after embankment constructed.However,there is lack of understanding of moisture change of roadbed soil.In this article,pF-meter sensor is used to measure the change of soil temperature and moisture and then continuous measurement data were obtained for three years.The monitoring results show that pF-meter can indicate better the features of soil temperature and moisture and soil moisture transfer within an embankment.Unfortu... |
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| Keywords: | pF-meter sensor Qinghai-Tibet Railway processes of heat and moisture within an embankment |
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