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Phenomena caused by seismic and geocryological processes across linear infrastructure, South Yakutia, Russia
Received:May 28, 2017  Revised:June 28, 2017  Click here to download the full text
Citation of this paper:L. Gagarin,A. Melnikov,V. Ogonerov,I. Khristophorov,K. Bazhin,2017.Phenomena caused by seismic and geocryological processes across linear infrastructure, South Yakutia, Russia.Sciences in Cold and Arid Regions,9(4):352~362.
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Author NameAffiliationE-mail
L. Gagarin Melnikov Permafrost Institute SB RAS, Yakutsk 677010, Russia gagarinla@gmail.com 
A. Melnikov Technical Institute (branch) of North-East Federal University, Neryungri, 678922, Russia  
V. Ogonerov Melnikov Permafrost Institute SB RAS, Yakutsk 677010, Russia  
I. Khristophorov Melnikov Permafrost Institute SB RAS, Yakutsk 677010, Russia  
K. Bazhin Melnikov Permafrost Institute SB RAS, Yakutsk 677010, Russia  
基金项目:The study was supported by Russian Foundation for Basic Research (RFBR, Nos. 16-35-60027, 16-35-60028).
 
Abstract:High seismic activity, difficult permafrost and hydrogeological conditions of South Yakutia (Russia) complicate building and exploitation of engineering construction and require additional detailed and complex research. These conditions are evident within two sites. The first site is located in the middle reach of the Duray River, where it is crossed by the highway Lena. The second site is located on the right side of the Chulmakan River Valley, 400 meters to the east of the ESPO oil pipeline route. Seismic events, occurring four years ago, led to landslides in the mentioned sites. Formation of joint fissures on slopes assisted drainage of aquifers of free water exchange zone. It is worth noting that at the Duray River site, 59 cm of active soil slumping movement towards the roadbed has occurred within two summer months. Such a process is complicated by cryogenic disintegration of rocks in the base of the landslide body due to groundwater discharge and icing formation in winter.
keywords:earthquake  permafrost  landslide  icing  groundwater
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