Investigation of the freeze-thaw states of foundation soils in permafrost areas along the China-Russia Crude Oil Pipeline (CRCOP) route using ground-penetrating radar (GPR)
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- 作者：Yongping Wang ; Huijun Jin ; hjjin@lzb.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Guoyu Li
- 关键词：Permafrost ; China&ndash ; Russia Crude Oil Pipeline (CRCOP) ; Ground-penetrating radar (GPR) ; Freeze&ndash ; thaw states ; Thaw settlement ; Thaw depth
- 刊名：Cold Regions Science and Technology
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：126
- 期：Complete
- 页码：10-21
- 全文大小：6177 K
文摘
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Evaluation of thermal states of pipeline foundation soils at 8 sites along the CRCOP using GPR.
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GPR records interpreted with the help of stratigraphic and freeze–thaw information from boreholes and hand-dug trenches.
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GPR results compared with monitored results, model predictions, and centrifuge model test results.
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Insulation and thermosyphon effects of foundation soils did not achieve original expectations, better design, or retrofits recommended.
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Causal analysis for larger than anticipated, proactive measures, advantages, and limitations of using GPR for measuring thaw depths of pipeline foundation soils were provided and advised.