Freeze-thaw properties and long-term thermal stability of the unprotected tower foundation soils in permafrost regions along the Qinghai-Tibet Power Transmission Line
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- 作者：Guoyu Lia ; guoyuli@lzb.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Qihao Yua ; Wei Maa ; Zhaoyu Chena ; b ; Yanhu Mua ; Lei Guoa ; Fei Wanga
- 关键词：Qinghai&ndash ; Tibet Power Transmission line (QTPTL) ; Precast and cast-in-place tower foundations ; Permafrost degradation ; Thermal stability ; Climate warming
- 刊名：Cold Regions Science and Technology
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：121
- 期：Complete
- 页码：258-274
- 全文大小：2071 K
文摘
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Ground temperatures provide basis for assessing stability of tower footings.
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The TE effect of concrete footings increases duration of freezing and thawing.
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Climate warming, MAGTs, ice contents and embedding depths affect thermal response.
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Some measures are proposed for construction and maintenance of tower footings.