scholarly journals Investigation of the construction of airfield pavement using extruded polystyrene foam in the cold regions of the Russian Far East

2019 ◽  
Vol 265 ◽  
pp. 02007
Author(s):  
Tatiana Valtseva ◽  
Anastasiya Peters ◽  
Sergey Kudryavtsev ◽  
Sergey Alekseenko
Keyword(s):  
Russian Far East ◽  
Far East ◽  
Operational Reliability ◽  
Freezing And Thawing ◽  
Cold Regions ◽  
Software Complex ◽  
Rational Engineering ◽  
Geological Conditions ◽  
Northern Territories ◽  
The Russian Far East

The paper presents the results of scientific research and engineering calculations of rational designs parameters of airfield cover for cold regions of Russia using airstrip in Yuzhno-Sakhalinsk airport as the example. This airport is located in severe climatic and complex engineering-geological conditions. A deep seasonal freezing occurs everywhere. Applying extruded polystyrene plates in the structure construction makes it possible to significantly reduce frost heave and reduce foundation deformation. Performing numerical modeling of structures using «FEM models» geotechnical software complex allowed to quantify the processes of freezing and thawing in the annual cycle for the construction conditions. Based on the research results, designed constructive measures to ensure the operational reliability of the proposed rational engineering solutions for airstrips in the northern territories of the Russian Far East.

scholarly journals Strengthening of sliding soil body using gravitational pile structure at highway in Chita Region

2019 ◽  
Vol 265 ◽  
pp. 05012
Author(s):  
Tatiana Valtseva ◽  
Sergey Kudryavtsev ◽  
Elena Goncharova ◽  
Anastasiya Peters
Keyword(s):  
Rational Design ◽  
Russian Far East ◽  
Far East ◽  
Gravitational Effect ◽  
Operational Reliability ◽  
Special Treatment ◽  
Software Complex ◽  
Geological Conditions ◽  
Thawing Permafrost ◽  
Northern Territories

This article presents the way to prevent deformation of linear structures build on sliding slopes. The offered structure is built on thawing permafrost soils. Some results of scientific research and engineering calculations of options for rational design of roads located in cold regions of Russia are given as an example of a highway construction. The highway is constructed in complicated climatic and engineering-geological conditions. There are occurrences of insular permafrost and a wide spread of deep seasonal freezing. Melting permafrost requires special treatment in construction due to changing their temperature and humidity conditions. Thus, the structure includes installation of piles in slopes and their interconnection in a pilework by means of a vertical geogrid rigidly connected to pile caps and vertical geogrid layers. The work stage from cap bottoms to the first layer of a horizontal geogrid and interlayers between geogrids are filled with the crushed stone compacted. The horizontal geogrids are installed on account of their partial location in a no-float soil body of the slope or natural downhill. Modelling of the structural behavior with the geotechnical software complex «FEM models» estimates the gravitational effect of a sliding body of earth. The reliability of the structure is confirmed by regular measurements and observations on the highway section. On the basis of the research results some structural measures for providing operational reliability for highway rational designs in the northern territories of the Russian Far East are offered.

Tax debt as a threat to the economic security of the Russian Far East

2020 ◽  
Vol 13 (2) ◽  
pp. 216-242
Author(s):  
V.A. Yakimova ◽  
A.A. Orekhova
Keyword(s):  
Russian Far East ◽  
Consumer Price Index ◽  
Far East ◽  
Federal District ◽  
Economic Security ◽  
Factors Affecting ◽  
Correlation And Regression Analysis ◽  
Debt Collection ◽  
Far Eastern ◽  
The Russian Far East

Subject. The article addresses the tax liabilities of taxpayers registered in the subjects of the Far Eastern Federal District, which should be paid to the consolidated budget of the Russian Federation, as well as the factors of the said debt growth. Objectives. Our aim is to assess the level of tax debt of regions of the Russian Far East and identify the correlation between the factors and the amount of tax debt. Methods. The study rests on methods of analysis, generalization, grouping, systematization, and the correlation and regression analysis. Results. We analyzed the level of tax debt for the entire Far Eastern Federal District and by region, identified factors affecting the growth of tax debt therein. The paper assesses the structure of tax debt by type of taxes and activity of debtors. The unveiled factors may help control changes in the size of tax debt in the Russian Far East and develop effective measures to improve the debt collection. Conclusions. The study shows that there is an increase in the tax debt in the regions of the Russian Far East, in the VAT in particular. The factor analysis revealed that the volume of sales of wholesale enterprises, investment in fixed capital, the consumer price index have the largest impact on the amount of tax debt.

New records and rare alien species in the flora of the Russian Far East

2018 ◽  
Vol 65 ◽  
pp. 89-102
Author(s):  
Z.V. Kozhevnikova ◽  
◽  
A.E. Kozhevnikov ◽  
Keyword(s):  
Alien Species ◽  
New Records ◽  
Russian Far East ◽  
Far East ◽  
The Russian Far East

ON CHROMOSOME NUMBERS IN THE GRASS FAMILY (POACEAE) IN RUSSIA, WITH SPECIAL ATTENTION TO THE FAR EAST

2020 ◽  
Vol 68 ◽  
pp. 29-64
Author(s):  
N.S. Probatova ◽  
Keyword(s):  
Chromosome Numbers ◽  
Russian Far East ◽  
Far East ◽  
Grass Species ◽  
Original Material ◽  
Mountain Regions ◽  
Grass Family ◽  
The Far East ◽  
The World ◽  
The Russian Far East

The paper summarizes information on chromosome numbers (CNs) of the Grass species (Poaceae) in the flora of Russian Federation, obtained on the original material, most part - from the Russian Far East (RFE). In some species the CNs are known in Russia or in the world only from RFE, in some – from one locality or few, or from one subregion of RFE. The grass species in RFE often occur in mountain regions and near seacoasts; some species are endemics, some were studied near the limits of their geographical distribution areas. The diversity of CNs, the special features of the CNs distribution in some grass groups are discussed. The alien species are abundant in RFE, and their CNs are also involved in the study. For karyologically polymorphous species further studies are needed.

Устойчивые сорта корнеплодов в муссонном климате юга Дальнего Востока России

2018 ◽  
Author(s):  
Y.G. Mikheev ◽  
I.A. Vanyushkina ◽  
V.I. Leunov
Keyword(s):  
High Resistance ◽  
Geographical Origin ◽  
Russian Far East ◽  
Far East ◽  
Source Material ◽  
The South ◽  
Root Crops ◽  
The Russian Far East ◽  
Resistance To Diseases

Представлены результаты изучения исходного материала столовой моркови и свеклы разного эколого-географического происхождения по устойчивости к патогенной флоре. Для условий Дальнего Востока созданы высокопродуктивные, устойчивые к патогенам сорта и гибриды столовых корнеплодов.The article presents the results of the study of the source material of table carrots and beets of different ecological and geographical origin for resistance to diseases. Geniuses for breeding of high-productive variety samples of root crops with rather high resistance to diseases in the conditions of the South of the Russian Far East are revealed.

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