| 青藏铁路管道通风路堤下土体的温度变化分析 |
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| 引用本文： | 牛富俊,马巍,赖远明.青藏铁路管道通风路堤下土体的温度变化分析[J].铁道工程学报,2003(4):29-32. |
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| 作者姓名： | 牛富俊 马巍 赖远明 |
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| 作者单位： | 中科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： | 中科院知识创新工程重大项目(No.KZCA1-SW-04);国家自然科学基金重大项目(90102006):"973"国家重点基础研究发展规划项目(2002CB412704) |
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| 摘 要： | 本文针对青藏铁路管道通风路堤对于保护多年冻土的工程效果 ,基于试验段在近 2个冻融循环周期内的温度监测资料 ,初步分析了路堤填土下土体温度的发展特征 ,并对通风管铺设高度的影响进行了讨论。结果表明 ,通风管路堤具有保护多年冻土的作用 ,而且通风管埋设位置低的路堤工程效果要优于通风管埋设位置高的路堤
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| 关 键 词： | 青藏高原 铁路 冻土 通风路堤 |
| 文章编号： | 1006-2106(2003)04-0029-04 |
| 修稿时间： | 2003年9月2日 |
ANALYSIS ON GROUND TEMPERATURE CHANGES OF THE SOILS UNDER DUCT-VENTILATION EMBANKMENT OF QINGHAI-TIBET RAILWAY |
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| NIU Fu-jun,MA Wei,LAI Yuan-ming State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and Engineering Research Institute.ANALYSIS ON GROUND TEMPERATURE CHANGES OF THE SOILS UNDER DUCT-VENTILATION EMBANKMENT OF QINGHAI-TIBET RAILWAY[J].Journal of Railway Engineering Society,2003(4):29-32. |
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| Authors: | NIU Fu-jun MA Wei LAI Yuan-ming State Key Laboratory of Frozen Soil Engineering Cold and Arid Regions Environmental and Engineering Research Institute |
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| Abstract: | Based on two year's data of ground temperature monitored at Beiluhe section of the Qinghai-Tibet Railway, where field-testing embankment was constructed, the engineering effect of duct-ventilation embankment is discussed through analyzing ground temperature changes. Results indicate that duct-ventilation embankment is available to protect the underlying permafrost and even can extend it. It is also shown that it is better to bury ducts near the initial ground surface, so that the engineering effect of ventilation embankment can be advanced. |
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| Keywords: | Qinghai-Tibet Plateau railway permafrost ventilation embankment |
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