Variation of Ground Temperature along the Stratum Depth in Ice-rich Tundra of Hinggan Mountains Region, NE China
A pile foundation in a permafrost region is in a negative-temperature environment, so concrete is affected by the negative temperature of the surrounding soil. It not only affects the formation of concrete strength but also leads to engineering quality accidents in serious cases. With the support of...
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ftmdpi:oai:mdpi.com:/2076-3263/10/3/104/ 2023-08-20T04:07:07+02:00 Variation of Ground Temperature along the Stratum Depth in Ice-rich Tundra of Hinggan Mountains Region, NE China Ziying Liu Tianlai Yu Ning Yan Lipeng Gu agris 2020-03-15 application/pdf https://doi.org/10.3390/geosciences10030104 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/geosciences10030104 https://creativecommons.org/licenses/by/4.0/ Geosciences; Volume 10; Issue 3; Pages: 104 permafrost temperature nonlinear fitting prediction model Text 2020 ftmdpi https://doi.org/10.3390/geosciences10030104 2023-07-31T23:14:30Z A pile foundation in a permafrost region is in a negative-temperature environment, so concrete is affected by the negative temperature of the surrounding soil. It not only affects the formation of concrete strength but also leads to engineering quality accidents in serious cases. With the support of the two permafrost bridge projects of the national highway from Beijing to Mohe in the Greater Khingan Mountains region, a systematic remote dynamic monitoring method for ground temperature in ice-rich tundra is proposed. Based on the actual measurement of temperature at different strata depths and the comprehensive consideration of surface temperature, terrestrial heat flux and other parameters, the ground temperature profile evolution in relation to depth in Greater Khingan was established. The theoretical ground temperature profile curve is similar to the measured profile. The results show that the variation trends of ground temperatures in relation to the strata depth at different monitoring sites is similar, and all show seasonal variation: From June to November, the ground temperature at different depths tends to be constant. From December to May, the ground temperature at any depth within the range of 0 to 5.5 m follows the curve of the cosine function. Below 5.5 m, the earth temperature no longer varies with depth. The research results can be used as reference for pile foundation construction in a negative-temperature environment in ice-rich tundra. Text Ice permafrost Tundra MDPI Open Access Publishing Geosciences 10 3 104 |
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topic |
permafrost temperature nonlinear fitting prediction model |
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permafrost temperature nonlinear fitting prediction model Ziying Liu Tianlai Yu Ning Yan Lipeng Gu Variation of Ground Temperature along the Stratum Depth in Ice-rich Tundra of Hinggan Mountains Region, NE China |
topic_facet |
permafrost temperature nonlinear fitting prediction model |
description |
A pile foundation in a permafrost region is in a negative-temperature environment, so concrete is affected by the negative temperature of the surrounding soil. It not only affects the formation of concrete strength but also leads to engineering quality accidents in serious cases. With the support of the two permafrost bridge projects of the national highway from Beijing to Mohe in the Greater Khingan Mountains region, a systematic remote dynamic monitoring method for ground temperature in ice-rich tundra is proposed. Based on the actual measurement of temperature at different strata depths and the comprehensive consideration of surface temperature, terrestrial heat flux and other parameters, the ground temperature profile evolution in relation to depth in Greater Khingan was established. The theoretical ground temperature profile curve is similar to the measured profile. The results show that the variation trends of ground temperatures in relation to the strata depth at different monitoring sites is similar, and all show seasonal variation: From June to November, the ground temperature at different depths tends to be constant. From December to May, the ground temperature at any depth within the range of 0 to 5.5 m follows the curve of the cosine function. Below 5.5 m, the earth temperature no longer varies with depth. The research results can be used as reference for pile foundation construction in a negative-temperature environment in ice-rich tundra. |
format |
Text |
author |
Ziying Liu Tianlai Yu Ning Yan Lipeng Gu |
author_facet |
Ziying Liu Tianlai Yu Ning Yan Lipeng Gu |
author_sort |
Ziying Liu |
title |
Variation of Ground Temperature along the Stratum Depth in Ice-rich Tundra of Hinggan Mountains Region, NE China |
title_short |
Variation of Ground Temperature along the Stratum Depth in Ice-rich Tundra of Hinggan Mountains Region, NE China |
title_full |
Variation of Ground Temperature along the Stratum Depth in Ice-rich Tundra of Hinggan Mountains Region, NE China |
title_fullStr |
Variation of Ground Temperature along the Stratum Depth in Ice-rich Tundra of Hinggan Mountains Region, NE China |
title_full_unstemmed |
Variation of Ground Temperature along the Stratum Depth in Ice-rich Tundra of Hinggan Mountains Region, NE China |
title_sort |
variation of ground temperature along the stratum depth in ice-rich tundra of hinggan mountains region, ne china |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/geosciences10030104 |
op_coverage |
agris |
genre |
Ice permafrost Tundra |
genre_facet |
Ice permafrost Tundra |
op_source |
Geosciences; Volume 10; Issue 3; Pages: 104 |
op_relation |
https://dx.doi.org/10.3390/geosciences10030104 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/geosciences10030104 |
container_title |
Geosciences |
container_volume |
10 |
container_issue |
3 |
container_start_page |
104 |
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