Zobrazeno 1 - 10
of 288
pro vyhledávání: '"Fujun NIU"'
Publikováno v:
International Journal of Disaster Risk Science, Vol 14, Iss 4, Pp 549-565 (2023)
Abstract In the mountainous permafrost area, most thaw slumps are distributed in north or northeast-facing shady slope areas. It is commonly known that there is a heterogeneity in permafrost between different slope aspects, but there has been a lack
Externí odkaz:
https://doaj.org/article/64b9aa3663924a45a8960eb7238152a6
Publikováno v:
International Journal of Disaster Risk Science, Vol 14, Iss 4, Pp 566-585 (2023)
Abstract Retrogressive thaw slumps (RTSs), which frequently occur in permafrost regions of the Qinghai-Tibet Plateau (QTP), China, can cause significant damage to the local surface, resulting in material losses and posing a threat to infrastructure a
Externí odkaz:
https://doaj.org/article/180e999dbd0445da9c3e481d9e6d70ce
Publikováno v:
International Journal of Disaster Risk Science, Vol 14, Iss 4, Pp 680-696 (2023)
Abstract The Qinghai-Tibet Railway has been operating safely for 16 years in the permafrost zone and the railroad subgrade is generally stable by adopting the cooling roadbed techniques. However, settlement caused by the degradation of subgrade perma
Externí odkaz:
https://doaj.org/article/301965dae8824ea4bcc9246fe4f74781
Publikováno v:
Remote Sensing, Vol 16, Iss 9, p 1629 (2024)
Freeze–thaw (FT) erosion intensity may exhibit a future increasing trend with climate warming, humidification, and permafrost degradation in the Qinghai–Tibet Plateau (QTP). The present study provides a reference for the prevention and control of
Externí odkaz:
https://doaj.org/article/03d304c95c884d5ba096b2576318b3a8
Autor:
Xingwen Fan, Yanhe Wang, Fujun Niu, Wenjiao Li, Xuyang Wu, Zekun Ding, Wenlong Pang, Zhanju Lin
Publikováno v:
Remote Sensing, Vol 15, Iss 18, p 4496 (2023)
Permafrost areas are sensitive to climate change and have a significant impact on energy and water cycles. Ground ice is a crucial component on the Qinghai–Tibetan Plateau (QTP). Understanding the environmental characteristics of ground ice is vita
Externí odkaz:
https://doaj.org/article/1c9a9cef6c794fde86a1abe7b30b03f8
Publikováno v:
Frontiers in Environmental Science, Vol 10 (2022)
The slope aspect effect is widely distributed on the Qinghai-Tibet Plateau and has an important impact on the permafrost environment. The differences in surface heat exchange characteristics of different slope aspects in the permafrost region of Gu M
Externí odkaz:
https://doaj.org/article/6556dc71052448229b558d705e8361c9
Autor:
Shunshun Qi, Guoyu Li, Dun Chen, Fujun Niu, Zhizhong Sun, Gang Wu, Qingsong Du, Mingtang Chai, Yapeng Cao, Jianwei Yue
Publikováno v:
Remote Sensing, Vol 15, Iss 10, p 2651 (2023)
In order to research the special embankment (thermosyphon embankment) damages and the distribution of permafrost under the Qinghai–Tibet Highway (QTH) embankment. The section K2952–K2953, which is a typical representative of the QTH, was chosen f
Externí odkaz:
https://doaj.org/article/9284e7ee0f524f2cb6f474be3d13589f
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Bedded sandstone is classified as sedimentary rock, which is a typical bedded rock with obvious layered structure characteristics. Bedded rocks formed different bedding orientations in the long and complicated geological tectonic evolution and thus h
Externí odkaz:
https://doaj.org/article/c0d978f0afbe48a7aad2041a963cf7f7
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
The stability of a cast-in-place pile foundation in permafrost region is primarily subject to the thermal regime and tangential frost-heave forces (TFF) during the operation period. However, studies focusing on the thermal and mechanical characterist
Externí odkaz:
https://doaj.org/article/cbb392e6e5ae4ee2b5b6019f8f5a431a
Publikováno v:
Geofluids, Vol 2022 (2022)
In order to analyze the mechanical behavior of cracked rock in cold region subjected to cyclic loading, step cyclic loading and unloading (SCLU) triaxial tests with different stress paths have been designed. The mechanical responses such as strength,
Externí odkaz:
https://doaj.org/article/abceb552075a40ec87d7ea74426d59a0