| 多年冻土地区铁路路堤北坡和南坡热状况差异分析 |
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| 引用本文： | 盛煜,温智,张明义,吴吉春.多年冻土地区铁路路堤北坡和南坡热状况差异分析[J].冰川冻土,2004,26(Z1):161-165. |
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| 作者姓名： | 盛煜 温智 张明义 吴吉春 |
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| 作者单位： | State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China |
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| 基金项目： | 中国科学院资助项目
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国家自然科学基金 |
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| 摘 要： | Based on the observational data at Beiluhe test site of Qinghai-Tibetan Railway, the difference of thermal state between south faced and north faced slope was analyzed. The results indicated that the mean annual ground temperature at the depth of 0. 5m on south faced slope was higher than that on north faced slope by over 3 ℃. The higher temperature on south faced slope was greatly attributed to the high temperature during winter time. This kind of difference in thermal state may result in asymmetric thermal regime in embankment as well as in underlying soil. As a result, the unevenly transverse deformation may appear.
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| 关 键 词： | embankment temperature south faced slope north faced slope 多年冻土地区 铁路路堤 南坡 热状况 差异分析 Regions Permafrost Railway Embankment North Faced Slope South Thermal State Difference deformation appear kind results asymmetric thermal regime embankment soil |
Analysis on the Difference of Thermal State between South Faced and North Faced Slope of Railway Embankment in Permafrost Regions |
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| SHENG Yu,WEN Zhi,ZHANG Ming-yi,WU Ji-chun.Analysis on the Difference of Thermal State between South Faced and North Faced Slope of Railway Embankment in Permafrost Regions[J].Journal of Glaciology and Geocryology,2004,26(Z1):161-165. |
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| Authors: | SHENG Yu WEN Zhi ZHANG Ming-yi WU Ji-chun |
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| Abstract: | Based on the observational data at Beiluhe test site of Qinghai-Tibetan Railway, the difference of thermal state between south faced and north faced slope was analyzed. The results indicated that the mean annual ground temperature at the depth of 0. 5m on south faced slope was higher than that on north faced slope by over 3 ℃. The higher temperature on south faced slope was greatly attributed to the high temperature during winter time. This kind of difference in thermal state may result in asymmetric thermal regime in embankment as well as in underlying soil. As a result, the unevenly transverse deformation may appear. |
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| Keywords: | embankment temperature south faced slope north faced slope |
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