scholarly journals Engineering and geological features of the soil section of the main water pipeline route in Central Yakutia

2020 ◽  
pp. 119-131
Author(s):  
Andrei Mikhailovich Sal'va
Keyword(s):  
Rural Areas ◽  
Physical And Mechanical Properties ◽  
Engineering Structures ◽  
Southeastern Part ◽  
Industrial Facilities ◽  
Central Yakutia ◽  
Technogenic Loads ◽  
Permafrost Soils ◽  
Pipeline Route ◽  
Water Pipeline

The object of this study is the permafrost soils of the section of the route of the main water pipeline «Tabaga-Byuteidyakh» in rural areas of Central Yakutia, spanning approximately 28 kilometers. Permafrost soils are widely developed in the Southeastern part of Central Yakutia, and are located on the Leno-Amginsky interfluve. They lie in the upper part of the geological section and are underlying on the lane of the main water pipeline route, as well as fall into the foundations of engineering structures of industrial facilities and hydraulic engineering construction. The study is based on a complex of field engineering and geological surveys, as well as laboratory studies of the physical and mechanical properties of rocks. The article discusses the features of the composition, structure and properties of rocks in this area. It is noted that among the considered soils, there is a variety of granulometric types, cryogenic texture from massive to layered, with clay soils usually of higher ice content than sandy ones. Technogenic loads are also mentioned in the form of objects of the main water supply system, consisting of pumping stations, pipelines, reservoirs and channels, which lead to significant changes in the geocryological environment and surrounding landscapes.

EXPERIENCE OF GPR INVESTIGATION AT ENGINEERING-GEOLOGICAL SURVEY IN CENTRAL YAKUTIA

2018 ◽  
Vol 12 (7-8) ◽  
pp. 92-100
Author(s):  
D. V. SAVVIN ◽  
L. L. FEDOROVA ◽  
E. E. SOLOVIEV
Keyword(s):  
Geophysical Methods ◽  
Physical And Mechanical Properties ◽  
Wave Pattern ◽  
Engineering Structures ◽  
Wave Fields ◽  
Central Yakutia ◽  
The North ◽  
The Republic ◽  
Characteristic Features ◽  
Cryogenic Processes

Тhe territory of the Republic of Sakha (Yakutia) is located in the north-eastern part of the Eurasian continent, the Republic is the largest region of the Russian Federation. One of the features of the region is the presence of permafrost. The construction and exploitation of engineering structures is conducted in a harsh climate and difficult engineering-geocryological conditions on this territory. In this case, the disturbance of thermal equilibrium of permafrost, is accompanied by subsidence, deformation of the buildings foundation and structures, and sometimes to their partial destruction. The article presents the results of GPR studies for engineering-geological surveys in Central Yakutia are presented. The relevant research focused on the improvement of assessment of informativeness, efficiency and authenticity of ground condition according to the indications of remote geophysical methods, in particular GPR, is being examined. The results of studies aimed at studying the characteristic features of GPR wave fields for the development of signs of the interpretation of cryogenic processes and phenomena in the soils of the foundations of engineering structures according to GPR data are presented. The wave fields characteristics and GPR signs of talik, water-bearing zones, areas of weakening of the soil, increase the capacity of the active layer caused by the thawing of permafrost, infiltration of the supra permafrost water boundaries identification have been developed and are determined . The selection of interpretative features of permafrost processes at the research site was carried out by comparing the results of GPR with drilling data and analysis of the wave pattern, which considered the configuration, intensity, length of the in-phase axes. The good reproducibility of GPR investigation with the data of electrical resistivity tomography (electrical sounding, multipole sounding) is shown. The effectiveness of GPR in identifying zones, associated with the development of negative cryogenic processes, recommended for drilling for determination of physical and mechanical properties of soils, for example, complicated permafrost conditions of Yakutia.

Lighting of Engineering Structures and Industrial Facilities New Aspects of the Topic

2018 ◽  
pp. 29-36
Author(s):  
Nikolai I. Shepetkov ◽  
George N. Cherkasov ◽  
Vladimir A. Novikov
Keyword(s):  
Fundamental Problem ◽  
Lighting Design ◽  
Aesthetic Value ◽  
Engineering Structures ◽  
Industrial Facilities ◽  
Artificial Lighting ◽  
Industrial Structures ◽  
Design Solutions ◽  
Architectural Lighting ◽  
The Aesthetic

This paper considers the fundamental problem of artificial lighting in various types and scales of industrial facilities, focusing on exterior lighting design solutions. There is a lack of interest from investors, customers and society in high­quality lighting design for industrial facilities in Russia, which in many cities are very imaginative structures, practically unused in the evening. Architectural lighting of various types of installations is illustrated with photographs. The purpose of the article is to draw attention to the aesthetic value of industrial structures, provided not only by the architectural, but also by a welldesigned lighting solution.

Application of UAV Technology to Planning Study on Chinese Villages in Guanzhong

2019 ◽  
pp. 180-195
Author(s):  
Yuan Zhong Cai ◽  
Feng Wu ◽  
Jing Li ◽  
Jin Wang ◽  
Mei Huang
Keyword(s):  
Magnetic Field ◽  
Spatial Analysis ◽  
Data Collection ◽  
Work Environment ◽  
Rural Areas ◽  
Large Scale ◽  
Industrial Facilities ◽  
Scale Factors ◽  
Rural Revitalization ◽  
The Magnetic Field

Driven by the state strategy of rural revitalization, Chinese rural areas receive unprecedented opportunities for development. However, China's Guanzhong region faces numerous problems in its rural planning research, such as 1) lack of terrain maps of most villages, 2) satellite maps collected from open platforms are inaccurate and fail to support a more detailed spatial analysis, 3) data and information are 2-dimensional, 4) data collection is inefficient. And, most villages consist of several village groups that are usually 400~500 m apart. Areas of Guanzhong are located on the plain, with low architectural height and an excellent environment of net clearance. In addition, there are no large-scale factors, mineral areas, and industrial facilities, which means low interference from the magnetic field. Compared with urban regions, such rural areas have a better work environment for UAV and better conditions of collecting needed data.

scholarly journals Assessment of the community vulnerability to extreme spring floods: the case of the Amga River, central Yakutia, Siberia

2020 ◽  
Author(s):  
N. I. Tananaev ◽  
V. A. Efremova ◽  
T. N. Gavrilyeva ◽  
O. T. Parfenova
Keyword(s):  
Rural Areas ◽  
Flood Control ◽  
Management Practices ◽  
Snow Water Equivalent ◽  
Risk Mitigation ◽  
Control Structures ◽  
Ice Jam ◽  
Central Yakutia ◽  
Urban Settlements ◽  
Water Stage

Abstract Spring floods in Siberia annually affect local communities. Major urban settlements in the region implemented flood control structures, so rural areas take a heavy beating. In 2018, spring floods severely hit multiple communities in central Yakutia, exposing deficient flood prevention and risk management practices. Notably, Amga village, an important local center, was severely inundated. Hydrological analysis shows that the 2018 flood had a 50-yr return period, and was caused by an ice jam in a nearby channel bend where mid-channel sand bars impede ice movement during breakup. The cold spells of late April and early May in the middle section of the river promote ice-jam development, causing extreme water stage rise. Highest water stage is unrelated to either winter snow water equivalent or early May rainfall. Estimated tangible direct damage to the Amga community equals 5.1B ($81.5M) in 2018 prices, but only 0.13B ($2.1M), or 2.5% of this total, was reclaimed. A questionnaire survey revealed that most residents report important deterioration of drinking water quality and health after flooding. Residents respond positively to risk mitigation actions, implemented by the local and regional authorities, except ice dusting and cutting, and report minor activity of official sources in spreading information on flood progress.

Influence of Acid Soil Stabilizer on the Acid-Basic Properties of Drill Cuttings

2019 ◽  
Vol 23 (10) ◽  
pp. 29-33
Author(s):  
L.V. Rudakova ◽  
E.A. Pichugin ◽  
M.V. Zilberman ◽  
E.V. Zyryanova
Keyword(s):  
Building Materials ◽  
Solid Phase ◽  
Acid Soil ◽  
Physical And Mechanical Properties ◽  
Environmental Safety ◽  
Engineering Structures ◽  
Drill Cuttings ◽  
Road Building ◽  
Physicomechanical Characteristics ◽  
Soil Stabilizer

One of the most promising areas of disposal of drill cuttings is their use as a component for the manufacture of mixtures used for the construction of engineering structures, such as road foundations. One of the limitations of the disposal of drill cuttings in this direction is the presence of alkaline components in the slimes, which worsen the physicomechanical characteristics of the mixtures obtained and create the threat of negative environmental impacts. In this article, the authors studied the dynamics of changes in the pH of the slurry sludge-water, and also conducted experiments to study the effects of additions of hydrochloric acid and acid soil stabilizer Polybond. It was established that the buffering capacity of the solid phase of drill cuttings in relation to maintaining pH at a level exceeding the value of 9 is low, and maintaining pH = 6÷8 units. is high. This fact suggests that when obtaining road-building mixtures based on drill cuttings, it is possible to do with small additions of acid soil stabilizer, at the same time the risk of obtaining products with unacceptably low pH values is negligible. The use of acid soil stabilizer in the manufacture of road-building materials based on drilling sludge helps ensure environmental safety of products, as well as improve the physical and mechanical properties of the material.

Engineering design. Reinforced concrete and stone structures

2019 ◽  
Author(s):  
Татьяна Ксенофонтова ◽  
Tatiana Ksenofontova ◽  
Марина Чумичева ◽  
Marina Chumicheva
Keyword(s):  
Reinforced Concrete ◽  
Physical And Mechanical Properties ◽  
Retaining Walls ◽  
Educational Process ◽  
Engineering Structures ◽  
Normative Documents ◽  
Stone Materials ◽  
Long Term Experience ◽  
Stone Structures

The textbook outlines the basics of calculation and design of reinforced concrete and stone structures in accordance with published normative documents SP 63.13330.2012 "Concrete and reinforced concrete structures. Basic provisions "and SP 15.13330.2012" Stone and armokamennye design". It considers the physical and mechanical properties of concrete, rebar, stone materials, reflects the modern classes of reinforcement used in construction, their characteristics and range. Much attention is paid to the calculation and design of water facilities, as well as environmental structures and structures in contact with the soil, such as retaining walls, underground concrete tanks for drinking water, reinforced concrete pipelines. The textbook reflects the long-term experience of teaching the authors of the discipline " Engineering structures "section" reinforced Concrete and stone structures". With this in mind, it provides many illustrations and explanations, and there are examples of calculation in the annexes. The textbook is written in accordance with the requirements of GEF VPO three plus and can be recommended for use in the educational process for the preparation of bachelors in areas 08.03.01 — "Construction", 20.03.02 — "environmental management and water use", 20.03.01 — "Technosphere safety" profile "environmental Engineering".

scholarly journals PROSPECTS FOR THE DEVELOPMENT OF INTERNATIONAL FACILITY-TOURISM IN UKRAINE. CHALLENGES OF THE COVID-19 PANDEMIC

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
O.O. Kotenko ◽  
Yu. Halynska ◽  
M.D. Domashenko ◽  
V.O. Shcherbachenko
Keyword(s):  
Full Range ◽  
Economic Effect ◽  
Tourism Industry ◽  
Practical Significance ◽  
Anthropogenic Activity ◽  
Underground Engineering ◽  
Engineering Structures ◽  
Industrial Facilities ◽  
International Tourist ◽  
Promising Area

The article is devoted to defining the essence of facility-tourism as a promising area within the tourism industry, which can potentially increase the attractiveness of Ukraine for foreign tourists and become a powerful competitive center in the redistribution of international tourist flows. The need to improve existing approaches to understanding industrial tourism (common term) has been demonstrated because it does not take into account the full range of opportunities associated with visiting abandoned cities, towns and buildings, existing and abandoned machines and industrial facilities, land and underground. engineering structures, exclusion zones and other objects of anthropogenic activity. The article proves that having an extraordinary technological, industrial, engineering potential, Ukraine can create hundreds of additional facilities that will have not only practical significance, but also financial and economic effect. In addition, the launch of facility-tourism in Ukraine will create additional opportunities for the development of related areas of services - hotel and restaurant business, museums, transport, etc., and will be the basis for creating new jobs, which is certainly important for modern Ukraine. Special attention in the article to the define the prospects and place of international facility-tourism in the tourism industry of Ukraine. The method of testing hypotheses proved that its initiation will certainly have a positive effect. The authors also paid attention to the development of the industry during the pandemic. It was proved that this type of tourism can fully work even in conditions of quarantine restrictions due to the possibility of organizing facility tours for small groups of foreign nationals.

GEOECOLOGICAL ASSESSMENT OF CHANGES IN ROCK PROPERTIES UNDER THE INFLUENCE OF TECHNOGENIC FACTORS

2021 ◽  
Vol 81 (2) ◽  
pp. 153-156
Author(s):  
ALYOSHINA TATYANA S. ◽  
◽  
PLATOV NIKOLAY A. ◽  
Keyword(s):  
Pressure Fluctuations ◽  
Physical And Mechanical Properties ◽  
Geological Structure ◽  
Point Of View ◽  
Rock Properties ◽  
Geological Environment ◽  
Engineering Structures ◽  
Reliable Determination ◽  
Technogenic Impact ◽  
Hydrogeological Conditions

Technogenic impact on the geological environment inevitably leads to a change in the properties of rocks. Engineering structures quite often directly interact with rocks, therefore, reliable determination of their properties is an urgent task in construction. From a practical point of view, knowledge of not only the physical and mechanical properties of rocks, but also their characteristics in contact with technogenic impact is of great interest. This determines the relevance of studying the characteristics of changes in the properties of rocks under the influence of technogenic factors. The aim of the work is to consider the issues of changing the properties of rocks under the influence of technogenic factors of the geological environment. Technogenic impact on the geological environment is classified according to various criteria, and is divided into global, zonal, regional and local categories. The authors rightly give preference to the following operating factors: pressure, fluctuations in the stress state, hydrogeological conditions, changes in the composition of groundwater, etc. Particular attention is paid to rock swelling, rock salinization and the influence of various microorganisms on rocks. In the article of the above authors, it is proposed to consider in detail the orohydrographic conditions of the studied geological environment, geomorphological conditions of the territory, geological structure, hydrogeological conditions (upstream, groundwater, interstratal waters), geo-dynamic conditions (all processes and phenomena expressed in a given territory), as well as to study the composition (mineral, granulometric, chemical), the state of rocks (moisture, density, porosity) and properties of rocks (strength, deformation and geological) - for a comprehensive assessment of the surrounding geological environment. Attention is also paid to the dynamic impact, i. e. the factors of liquefaction, thixotropy and other soil deformations are given.

THE EFFECT OF ALFALFA INOCULATION BY NODULE BACTERIA STRAINS ON HE AGROCHEMICAL COMPOSITION OF PERMAFROST SOILS OF CENTRAL YAKUTIA

2021 ◽  
pp. 4-5
Author(s):  
M. Yakovleva
Keyword(s):  
Experimental Data ◽  
Nodule Bacteria ◽  
Central Yakutia ◽  
Permafrost Soils

The long-term experimental data of studies on the influence of nodule bacteria strains on alfalfa yield, improving the quality of the resulting product, increasing agrochemical indicators of permafrost soils of Central Yakutia are presented.

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