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您的检索式：作者名="VERA Samsonova"
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| 1 | Characteristics of the active-layer under the China-Russia Crude Oil pipeline显示文摘Active layer is a key component for permafrost environment studies as many subsurface biological,biogeochemical,ecological,and pedogenic activities prevail in this layer.This study focuses on active layer temperature monitoring in an area with sporadic permafrost at two adjacent sites along China-Russia Crude Oil Pipeline(CRCOP),NorthEast China.Site T1 is located in disturbed ground on the right-of-way(on-ROW)2 m away from the center of the oil pipeline.T2 is located in a natural and undisturbed site,around 16.6 m off-ROW.Our objective was to study seasonal variability of the active layer depth and thermal regime from October 2017 to September 2018.The monitoring sites consist of soil temperature probes arranged in a vertical array at different depths at both sites.The following parameters were computed:number of isothermal days(ID),freezing days(FD),thawing days(TD),freezing degree days(FDD),thawing degree days(TDD),number of freeze-thaw days(FTD).The mean air temperature in the monitoring period reached-3.2℃.The temperature profile indicates that the maximum active layer thickness observed during the study period was 10 m at T1 and 2 m at T2.The majority of the soil temperatures were above or close to 0℃,resulting in great values of TDD,especially in the first 4 m depth.TDD for T1 were predominant and ranged between 600-1160℃·days(0-4 m depth)reflecting the influence of oil temperature from the pipeline.In T2 borehole FDD were predominant for all the soil layer depths resulting in less permafrost degradation.This comparison emphasizes the significant influence of vegetation removal and the dispersed heat from the pipeline on the active layer thickness. | SERBAN Mihaela LI Guo-yu SERBAN Raul-David WANG Fei FEDOROV Alexander VERA Samsonova CAO Ya-peng CHEN Peng-chao WANG Wei | 2021 | Journal of Mountain Science2021，18，2： | 4 |
| 2 | 西伯利亚永冻区天然气生产与运输设施建设和运营过程中的土工风险(英文)显示文摘对多年冻土区和岩土建筑工程风险的研究结果进行了总结,对设计时的干线管道进行了风险分析和评估,涵盖了Bovanenkovo—乌赫塔,Zapolyarnoe—乌连戈伊,西伯利亚电力,Bovanenkovo,Zapolyarnoye,Urengoyskoye,Chayanda的建设和科维克金领域的基础设施,得到了岩土工程风险评估的分析方法和发展成果,以及在多年冻土场地和危险低温过程中,地震和岩溶灾害区域天然气运输设施的设计和评估。 | Vera Samsonova Maksim Berezhnoi Natalia Reutskikh | 2014 | 黑龙江大学工程学报2014，5，3： | 0 |
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