Lin Chen - TibetLin Chen

Position: Ph. D. Student

Director: Daniel Fortier

Primary Address:

Département de Géographie

Strathcona building, local 104
Université de Montréal
520 chemin de la Côte-Sainte-Catherine
Montréal, Qc, H2V 2B8

Email: chl_sc@163.com

 

Project Title

Dynamics of air convection in mitigation techniques aiming at controlling permafrost degradation under transportation infrastructure – a case study from a road test section in Yukon, Canada

Description of the project research

The research project focus on evaluation the thermal performance of mitigation techniques using air convection to prevent permafrost degradation under road embankment. Extensive work will been done to better evaluate the road’s impact on this environment and the thermal impacts of the mitigation techniques on the permafrost by means of in-situ monitoring, physical modelling in environmental simulators and numerical simulation.

The study site is located 5 km south-east of the town of Beaver Creek in Yukon (Canada) in a zone of discontinuous permafrost. The road was built on a recession moraine covered by a thick ice-rich silt comprising an extensive buried (inactive) ice-wedge network. In response to the deterioration of the underlying ice-rich permafrost, the road sinks into the soil and the backfill material now intercepts the natural drainage. The site’s characterization and efficiency assessment of the mitigation techniques will address how air convection embankment can mitigate ice-rich permafrost degradation warmed by groundwater flow.

 

Keywords

Permafrost, Yukon, Road sustainability, Mitigation techniques, Water and heat transfer modelling

 

Scientific articles in peer-review journals

Han, F. L., Yu, W. B., Chen, L., et al. (2016) Analysis on factors affecting the thermal regimes of embankment in Permafrost Regions along the Qinghai-Tibet Engineering Corridor [J]. Applied Thermal Engineering. (Under review)

Chen, L., Yu, W. B., Yi, X., Wu, Y., Ma, Y., (2015) Application of Ground Penetration Radar in Permafrost Survey in Mohe County. Journal of Glaciology and Geocryology, 37(3):723-730.

Chen, L., Yu, W. B., Han, F.L., et al. (2015) Impacts of Aeolian Sand on Cooling Characteristic of Crushed-rock Embankment of Qinghai-Tibet Railway. Journal of Glaciology and Geocryology, 37(1):147-155.

Chen, L., Yu, W.B., Yang, C.S., et al, (2014) Research on Variation Mechanism Thermal Conductivity of Aeolian Sand on the Tibetan Plateau based on Microstructure. Journal of Glaciology and Geocryology, 36(4): 767-771.

Yu, W. B., Liu, W. B., Chen, L., et al. (2016) Evaluation of cooling effects of crushed rock under sand-filling and climate warming scenarios on the Tibet Plateau [J]. Applied Thermal Engineering, 92: 130-136.

Liu, W. B., Yu, W.B., Yi, X., Chen, L., et al, (2015) Thermal regime of frozen soil foundation affected by concrete base of transmission line tower on the Tibetan Plateau. Applied Thermal Engineering, 75: 950-957.

Yu, W. B., Guo, M., Chen, L., Lai, Y.M., Yi, X., Xu, L.L. (2014) Influence of Urbanization on permafrost: A case study from Mohe County, Northernmost China. The Cyosphere Discussion, (8), 4327-4348.

Yu, W. B., Liu, W. B., Lai, Y. M., Chen, L., Yin, X., (2014) Nonlinear Analysis of Coupled Temperature-Seepage Problem of Warm Oil Pipe in Permafrost Regions of Northeast China. Applied Thermal Engineering. 70(1): 988–995.

Yu, W. B., Yi, X., Guo, M., Chen, L., (2014) State of the art and practice of pavement anti-icing and de-icing techniques .Sciences in Cold and Arid Regions. 6(1): 14-21.

Yi, X., Yu, W.B., Chen, L., Liu, W. B., (2014) Influence of boundary conditions on the thermal stability of embankments in permafrost regions. Journal of Glaciology and Geocryology, 36(2): 369-375.

 

Conference presentations

Chen, L., Yu, W.B., Liu, W.B., Yi, X., (2013) Numerical Simulation of Pile Foundations of Qinghai-Tibet Power Transmission Line: Influence of Temperature Region.

 

 

Scholarships and other awards

2015: CSC scholarship
2014: Award for excellent graduates in University of China Academy of Sciences (UCAS)
2014: National Scholarship, Ministry of Education of the People’s Republic of China
2012: Award for National University Student’s Energy Conservation and Pollution Reduction Competition
2012: Award for excellent undergraduates in Northwest A&F University (NWSUAF)
2011: Award for National Undergraduate Hydraulic Innovational Design Competition
2010: Award for China Undergraduate Mathematical Contest in Modeling
2008-2012: Northwest A&F University Undergraduate Scholarship

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