| Article |
|---|
| Article name |
Impact of buildings of the Yakutsk thermal power plant on the condition of the frozen ground foundation |
| Authors |
Zabolotnik P.. , Zabolotnik S.. сandidate of geological and mineralogical sciences, leading scientific researcher, senior researcher, zabolotnik@mpi.ysn.ru |
| Bibliographic description |
|
| Category |
Earth science |
| DOI |
551.345 |
| DOI |
10.21209/2227-9245-2018-24-6-15-27 |
| Article type |
Scientific |
| Annotation |
It is noted that the Yakutsk Thermal Power Plant is the first industrial facility of the USSR, built on the principle of using evergreen soils as its base. Preservation of the permafrost condition of soil grounds is provided by installing the building on columns. In the process of long-term operation, talike zones with positive temperatures were formed under the buildings and on the adjacent areas. A further increase in temperature can lead to mass thawing of the soil, a reduction in their load-carrying capacity, and deformation of the foundations. To control the condition of the foundations of the foundation, the Permafrost Institute named after P. I. Melnikov of the SB RAS conducts systematic measurements of soil temperatures, which allow timely detection of emergency areas and carry out preventive measures to ensure the stability of structures. The results of quarterly temperature measurements in 2016 in 58 wells are presented, including 16-directly below the buildings. The ranges of change in soil temperature have been determined, and a comparative analysis of new results with those obtained earlier has been carried out. The schemes of temperature fields at depths of 4 and 10 m are made. These schemes show the places within which the foundations rest on a frozen base and on thawed grounds. It has been established that the permafrost soils at the base of all the structures are strongly dissolved. By November 2016, at the depth of foundation, their temperature increased from -3...5 to -0,2...1,0 °C. In addition, extensive talike zones with positive temperatures of + 7 °C or more were formed, whose thickness is 19...25 m |
| Key words |
main building; buildings of hot water boilers; carbon dioxide shop and chemical water purification plant; permafrost; taliks; ground temperature; seasonal cooling units; foundations; scheme; measurements |
| Article information |
Zabolotnik S., Zabolotnik P. Impact of buildings of the Yakutsk thermal power plant on the condition of the frozen ground foundation // Transbaikal State University Journal, 2018, vol. 24, no. 6, pp. 15-27 |
| References |
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