Performance assessment of groundwater drainage basin in small-sized mountain rivers based on DTM

The paper describes the performance assessment methods for groundwater drainage basin based on the analysis of morphometric indices of small-sized mountain river drainage basins. DTM was applied to analyze morphometric indices of drainage basins

The HydroGeo Software Package and Its Usage

This article presents experience of development and application of the HydroGeo software package used to handle practical and scientific tasks in the field of hydrogeochemistry and hydrogeology. There are examples of its application and basic scientific and practical results

The Relationship of Physical Property Indicators and Clay Soil Structural Strength of Tomsk Oblast Territory

The article deals with the characteristic of initial condition in fine-grained soils - its structural strength - p[str]. Estimation and measurement of this factor at soil testing are of primary importance for defining its physical and mechanical properties as well as for subsequent calculation of foundation settlements that is insufficiently covered in Code of practice, national standard and inefficiently applicable in practice of engineering geological investigations. The article reveals the relationship between soil physical property, its occurrence depth, which will make possible to forecast pstr over the given territory

Application of microwave method for moisture determination of organic and organic-mineral soils

The problem of rapid drying arises when determining moisture, ash and organic matter content, as well as during many other soil tests. For highly-organic and organo-mineral peat soils the problem of advanced measurement of moisture content is of special importance, since after reweighing the dry sample increase in mass may be observed. The article examines the methods in determining the moisture content in peat and organic soils via microwave radiation, which will greatly speed up the process, simplify the complexity and cost of laboratory tests. The paper presents a detailed review of the methods determining moisture content in soils and characteristics, as well as application scope. The work contains the research results on moisture organic soils: drying in a microwave oven and the current domestic standards

Application of microwave method for moisture determination of organic and organic-mineral soils

The problem of rapid drying arises when determining moisture, ash and organic matter content, as well as during many other soil tests. For highly-organic and organo-mineral peat soils the problem of advanced measurement of moisture content is of special importance, since after reweighing the dry sample increase in mass may be observed. The article examines the methods in determining the moisture content in peat and organic soils via microwave radiation, which will greatly speed up the process, simplify the complexity and cost of laboratory tests. The paper presents a detailed review of the methods determining moisture content in soils and characteristics, as well as application scope. The work contains the research results on moisture organic soils: drying in a microwave oven and the current domestic standards

Determination of water content in clay and organic soil using microwave oven

The article deals with the techniques of soil water content determination using microwave radiation. Its practical application would allow solving the problems of resource efficiency in geotechnical survey due to reduction of energy and resource intensity of laboratory analysis as well as its acceleration by means of decreasing labour intensity and, as a result, cost reduction. The article presents a detail analysis of approaches to soil water content determination and soil drying, considers its features and application. The study in soil of different composition, typical for Western Siberia including organic and organic-mineral ones, is a peculiarity of the given article, which makes it rather topical. The article compares and analyzes the results of the investigation into soil water content, which are obtained via conventional techniques and the original one developed by the authors, consisting in microwave drying. The authors also give recommendation on microwave technique application to dry soil

Classifications of bog peat sensitivity to anthropogenic impact (Western Siberia)

The article deals with strength parameters of peats in Western Siberia, evaluates their transformations under the anthropogenic mechanical impact, presents peat classification in terms of sensitivity allowing the forecast of strength loss when destructing their structure in the process of building roads, pipelines. Sensitivity classification also permits predicting roadability for construction design

Geochemical groundwater peculiarities of Paleogene sediments in S-E Western Siberia artesian basin

The geochemical peculiarities of groundwater in Paleogene deposits in southeastern part of Western Siberia artesian basin are considered in the paper. Landscape, climate, geostructural and hydrogeological conditions define the water composition and quality peculiarities in this region. It has been established that ion-saline composition, mineralization and water quality changes arre governed by the horizontal zonal distribution. Groundwater of taiga landscapes generally is in equilibrium with kaolinite and quartz, mainly involving Ca- and Mg-montmorillonite, illite, carbonate minerals, sometimes barite. Groundwater in woodland grass and grassland, together with previously mentioned minerals, is usually in equilibrium with barite, colestine, and particularly, fluorite and gypsum. As a result, all relevant elements are removed from the groundwater and their accumulation level is restricted

Taloe-Sedimentation in an Intermittent Lake (Russian Federation, Republic of Khakassia)

This paper examines the mineral and geochemical features of lake sediments and waters in intermittent Lake Taloe, located in a semiarid climate. Minerals that belong to groups of oxides, sulfides, aluminosilicates, carbonates, sulfates, and halides are identified through the use of precision methods. The resulting mineral species are divided by genetic features into two associations: terrigenous and hydrogenic. The terrigenous association includes water-insoluble minerals, while the hydrogenic association combines typical hydrogenic minerals. The regularities of the accumulation and distribution of minerals along the lake laterally and to a depth of up to one meter are also examined. The order of deposition of hydrogenous association minerals from sulfate-chloride lake waters was established. The obtained results are confirmed and supplemented by physicochemical calculations, which show the equilibrium of lake waters with hydroxides, oxides, aluminosilicates, carbonates, and sulfates. It has been established that the formation of minerals mainly occurs through evaporative concentration in conjunction with bedrock weathering

Application of microwave method for determining soil moisture

Relevance. Laboratory and field methods for determining soil moisture, commonly used in manufacturing organizations in Russia, have not changed essentially for many decades, resulting in their relatively high complexity and energy consumption. However, in current market conditions there is a need to improve the speed, quality and efficiency in determining soil physical characteristics. The main aim was to study the drying process of dispersed soils in microwave ovens while determining their moisture content and to develop a methodology for determining soil moisture using microwave radiation. The application of the method in practice will solve the problems of increasing the resource efficiency of engineering and geological surveys by decreasing the energy and labor intensity of laboratory research, and, as a result, cost reduction. Object of research: soils typical for Western Siberia, picked on the territory of the Tomsk region and the Khanty-Mansiysk Autonomous Okrug. Research methods include a method for determining soil moisture using microwave ovens, as well as by analyzing the results using MS Excel and Statistica. Results. The paper considers the possibility of using the method of accelerated determination of moisture of various soils with the help of microwave ovens at engineering and geological surveys for design, construction, repair and reconstruction of structures. It was found that spread of moisture values of the dispersed soils during drying in a microwave oven is in most cases not higher than when drying in a convection oven. It was confirmed that during drying no loss of organic matter in the ground occurs, as well as there is no growth in sample mass that increases the accuracy of determinations. The reliability of the confirmed test results was confirmed by the method of drying the soil to constant weight, in accordance with the requirements of the current regulatory documents. The authors have developed and tested the methodological recommendations for determining soil moisture when they are dried in a microwave oven