Phenomena caused by seismic and geocryological processes across linear infrastructure, South Yakutia, Russia

查看全文 作　　者：L. [1]Gagarin;A. [2]Melnikov;V. [1]Ogonerov;I. [1]Khristophorov;K. [1]Bazhin

机构地区：[1]Melnikov Permafrost Institute SB RAS, Yakutsk 677010, Russia;[2]Technical Institute (branch) of North-East Federal University, Neryungri, 678922, Russia

出　　处：《Research in Cold and Arid Regions》索引2017年第9卷第4期,共11页

基　　金：supported by Russian Foundation for Basic Research (RFBR, Nos. 16-35-60027, 16-35-60028) 摘　　要：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. 关键词：earthquake PERMAFROST LANDSLIDE ICING groundwater

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Phenomena caused by seismic and geocryological processes across linear infrastructure, South Yakutia, Russia

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