The advantages of a quantitative estimation hydrophysical properties the soil during pre-design research in hydraulic engineering urban environment are considered based on example cofferdam project planning. method allows to eliminate time-consuming laboratory tests and promptly obtain reliable estimates water-retention capacity conductivity using available data physical properties. mathematical model for assuming as capillary-porous media. Such associated technologies can be used way...

The mathematical model of the hysteretic water-retention capacity soil is submitted. describes main and scanning curves drainage moistening, as well reversal points. Physically reasonable assumption used to build model. According this function differential moisture at each point on takes only two values, which correspond sorption desorption equilibria moisture. This consistent with shape curves, generate hysteresis loops without "pump effect". parameters are interpreted based concepts...

The shores of the seas and storage reservoirs are in same property state, as its subsoil, forests, water resources. urgency coastal protection against abrasion especially increased recent decades (in connection with construction new ports, cities, energetic chemical objects, rapid development resort construction). municipal areas is more important, safety human habitation often dependent on this. Thus, measures no less important than land from erosion, rivers pollution. paper based a...

Currently in St. Petersburg problem of reconstruction hydraulic structures on the small streams city is a particularly urgent problem. However, despite fact that recent years during such operations side by with traditional technologies new methods are used, practically there lack publications about organization and planning construction works. The authors this publication enough acquainted history current state work kind, which was basis for publication. paper based review key used...

All structures are built of, or through, supported by earth materials including soil. Thus soil surveys in civil-engineering field an important step the construction. A lot of things depend on their results, especially cost construction, durability. The hydraulic conductivity needs one most laborious, and expensive surveys, thereby it is necessary to reduce these disadvantages. Were considered different methods (a laboratory, a mathematical model), conclusions were drawn about economic...

This paper deals with the problems associated design and operation of once–through or combined water cooling systems nuclear power plants using sea water. Suggested refinement techniques physical modeling hydraulic processes at pre–stage multipurpose stand. An example such a construction stand experience its use in justification decisions waterworks energy facilities.

Within the concepts about capillarity and lognormal distribution of effective pore radii, a theoretical justification for function differential water capacity its antiderivative (function water-retention in form dependence soil volumetric content on capillary pressure moisture) is presented. Using these functions, ratio hydraulic conductivity to filter coefficient calculated. Approximations functions describing relative have been suggested. Parameters interpreted estimated with applying...

An original and convenient (from a practical point of view) method to estimate the supply productive moisture in soil is offered. The based on physically adequate mathematical model hydrological properties considering hysteresis water-retention capacity. computation irrigation rates, which such estimates, minimizes water wastage if excess gravitational formed this percolates out moisturized profile under watering conditions. applying able optimize crop techniques, eliminates any inefficient...

The article considers the methodological and practical aspects of reclamation landfills dumps municipal solid waste in a management system. general tendencies system development context elements international concept hierarchy are analyzed. Statistics formation burial domestic indicate strategic non-alternative to rejection landfill technologies favor environmentally, energy efficient economically expedient ways utilization as world trend. Practical approaches study territories on which...

The collapse of hydropower plant could lead to significant financial, social and environmental damages. Accordingly the issue safety reliability is one major problems designing, maintenance operation. proposed solution consists in evaluation implementation frequency emergencies scenario, which can be defined by suggested classification accidental situations' scenarios based on systems analysis implement incidents plants. Emergency plants were classify three criteria: cause, place character

This work is based on analysis of flood events using GIS-environment and managerial solutions to prevent them. General concepts statistical data are given. Modern GIS-technologies, which used for flash hydrological model creation, examined. The test models, allow analyzing possible engineering solution with the aim minimization risks consequences, developed. All proposed measures requires preliminary soil properties researches underground surveys.

The Russian Federation has a large number of seas with access to the world ocean. logical use this fact is development maritime transport infra-structure as one cheapest per unit weight transported cargo. It also worth noting that in some northern remote regions, there are still no alternatives seasonal sea delivery. In recent decades, Russia planned construction and reconstruction ports, including along Northern Sea Route (NSR). From open sources it known near main way on are: Murmansk,...

Abstract. Problems of processing point clouds airborne laser scanning using different software for Smart City projects are considered. Results comparison suitable on the base a test cloud presented. For we had chosen criterion how results can be used in smart city application. The following were comparison: Erdas IMAGINE, ENVI Lidar, TerraSolid (without Terraslave), GlobalMapper, Autodesk InfraWorks. Comparison have been conducted qualitative and quantitative terms. presented allowed us to...

Арефьев Н.В

The purpose of the paper is description method estimating investment appeal rate hydropower construction in federal subjects. based on Analytic Hierarchy Process (AHP). According to every subject estimated by decision-maker. authors collected data for this study from Russian Federal State Statistics Service, Subjects Development Programs and Power Industry subjects (23 indicators). were according these indicators. As a result project has status: attractive, relatively attractive...

The problem of flood protection measures are considered in the paper. regulation river flow by system Self-Regulated Flood Dams (SRFD) is analyzed. method SRFD modeling GIS environment proposed. question ecological aspect management based on hydrophysical properties soil. improved Mualem-Van Genuchted proposed for evaluation possible location influence soil flooded territory – temporary reservoirs. importance and utility complex stated.

Arctic harbors serve as crucial gateways to economic development and scientific exploration in the region, yet they face unique challenges stemming from environmental, social, cultural factors. This article provides a comprehensive analysis of multifaceted dimensions harbor development, exploring importance, technological innovations, environmental challenges, social considerations shaping future harbors. We highlight significance sustainable principles guiding planning management,...

The Arctic region is undergoing unprecedented environmental changes due to global climate change, necessitating robust monitoring and research efforts. Geodesy, the science of accurately measuring Earth's shape, orientation, gravitational field, plays a critical role in understanding these changes. This article explores applications, challenges, future directions geodesy Arctic. Satellite-based techniques such as GNSS, SAR, satellite altimetry are utilized monitor ice mass loss, sea level...

Abstract The propagation and absorption of the slow waves (SWs) in three-ion plasma Wendelstein 7-X stellarator have been investigated by ray tracing. aim study is to obtain a qualitative notion penetration into wave excited potential difference between antenna conductors box. It has discovered that rays propagate along magnetic field lines over significant distance, up 6 m, from antenna. They weakly, depth 0.1 penetrate plasma. Absorption SWs electrons does not lead generation currents...

Abstract A methodology for the operation of remote controlled uninhabited vehicles during inspection concrete dams is proposed. The main elements and damages arising in them are indicated.

This paper is dedicated to the Gulf of Cheboksary. The gulf has an important recreational and decorative function. It been integral part urban landscape for several decades. There eutrophication process, accompanied by development blue-green algae appearance odour in early spring, despite water quality improvement measures. Measures that will improve exchange are proposed this paper. Problems with sanitary condition body can occur without taking these Therefore, theme research quite urgent.

The development of residential construction on alluvial territories requires high-quality engineering background in the initial stages development. In area with high ground moisture, erection buildings is difficult and drainage measures are required. necessity to choose method wastewater disposal has become an urgent problem, because quality operational characteristics depend correct preparation territory, as well stability capital structures being erected. purpose work was develop a for...

The paper describes the types of assessment and process natural environment. A review judgments about ecological geo-ecological environment by known academics, environmentalists, physical geographers, geobotanists is made here. In this method environmental resource potential within North-West region Russia proposed. Authors divide into blocks, which are described in paper. produced for evaluating territory used to calculate cadastral value land.