HYDRAULIC ENGINEERING STRUCTURE CONTROL SYSTEM AND ITS DIAGNOSTICS TECHNOLOGY IMPROVEMENT

The general purpose of real-time monitoring of the technical condition of hydrotechnical structures of reclamation systems is to detect the deterioration (deterioration of the condition) of the degree of physical wear and tear, the reasons that entail the deterioration of condition, a decrease in efficiency of the structure. Materials and methods. The studies carried out were based on general scientific methods: descriptions, comparisons, statistical analysis, systems approach and economic and mathematical modeling. The objects of diagnostics of the technical condition of the hydrotechnical structure of the reclamation water complex include: dams, hydroelectric power plant buildings, spillways, drainage and water outlets, tunnels, canals, locks, piezometric systems, power units, perimeters of the hydraulic system, bridges, foundations. Results. It has been determined that the control of the state indicators on most hydraulic structures is carried out visually and with the help of control and measuring equipment, mainly by destructive methods, manually. The high potential of the process of automation of operations of technical diagnostics of the structures of the reclamation water industry complex has been revealed. The modern complex information systems used in the advanced sectors of the economy of Russia and the world are characterized. Possibility of qualitative improvement and development of the system of automated technical diagnostics of hydraulic structures due to the priority use of modern achievements of information technologies is presented. Conclusions: the developed methodology makes it possible to improve information technologies for diagnostics of hydraulic structures, the reasonable use of such a system establishes the duration of the safe operation of hydraulic structures, reduces operating costs during the period of use and with a negative impact on the environment, and creates new information systems that allow managing hydraulic structures.

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Information systems and technologies for inspection of buildings and structures

Russian journal of transport engineering ◽

10.15862/05sats120 ◽

2020 ◽

Vol 7 (1) ◽

Author(s):

Yuri Shesterikov ◽

Olga Stifeeva

Keyword(s):

Information Systems ◽

Information Technologies ◽

Technical Condition ◽

Theoretical Research ◽

Technical Diagnostics ◽

Building Structures ◽

Main Criterion ◽

Sources Of Knowledge ◽

Informal Information ◽

The Moment

The article describes the features of usingо information systems and technologies for inspection of buildings and structures. The author notes that the main criterion for making decisions about the need for major repairs or the recognition of the building as an emergency is the category of technical condition of the building. To assess the category of technical condition of structures, conducting a survey of real construction objects, you need to take into account a number of possible reasons that lead to a change in the category of technical condition. Collecting informal information into the knowledge base is a strategically important and most difficult task in the development of ES. Sources of knowledge can be defined as an extensive base of practical and theoretical research in the framework of technical diagnostics of buildings and structures, regulatory documentation, a set of heuristic knowledge and reasoning of specialists. The ability to automate the solution of tasks of expert activity in the framework of diagnostics of building structures in conditions of uncertainty should be sought in the field of artificial intelligence systems. Decisions are influenced by the objectivity and reliability of information provided by experts, but often such information is influenced by their subjective opinion. The use of information technology allows you to take into account the diversity of individual opinions. Among the advantages of using information technologies for building surveys is that the contractor can track data collection in the "field" conditions on the site; the productivity of work increases due to the fact that the time for collecting and subsequent processing of information is significantly reduced; the accuracy of monitoring a number of parameters (geometric, structural) increases and it becomes possible to automate the process of obtaining information about the object, as well as calculating and evaluating the strength characteristics of the studied building structures. These technologies allow us to give a strict mathematical description of vague statements about the technical condition of the building at the moment.

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Dynamics of Lady’s slipper orchid (Cypripedium calceolus L.) population at Lake Kwiecko (West Pomerania)

Biodiversity Research and Conservation ◽

10.2478/biorc-2014-0026 ◽

2014 ◽

Vol 36 (1) ◽

pp. 53-60 ◽

Cited By ~ 2

Author(s):

Maciej Korczyński ◽

Ewa Krasicka-Korczyńska

Keyword(s):

Power Plant ◽

Endangered Species ◽

Rare Species ◽

Negative Impact ◽

Good Condition ◽

Hydroelectric Power Plant ◽

Field Observations ◽

Hydroelectric Power ◽

Cypripedium Calceolus ◽

Slipper Orchid

Abstract Cypripedium calceolus is considered an endangered species in the territory of Poland. Population of this rare species, situated at Lake Kwiecko (Western Pomerania), was regularly monitored in the years 1986-2013. The studied population has been under the permanent influence of the nearby hydroelectric power plant for almost 45 years. The field observations showed that the power plant had no negative impact on the condition of Cypripedium calceolus population. An indication of its good condition was, among others, an increase in the size - from 150 to 350 specimens within the study period.

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Assessment of the technical condition of underground structures of the largest hydroelectric power station in the North Caucasus, the Chirkeyskaya HPP

Proceedings of Petersburg Transport University ◽

10.20295/1815-588x-2021-3-410-420 ◽

2021 ◽

Vol 18 (3) ◽

pp. 410-420

Author(s):

Vladimir N. KAVKAZKY ◽

◽

Yana V. MEL’NIK ◽

Alexey P. LEIKIN ◽

Andrey V. BENIN ◽

...

Keyword(s):

Large Scale ◽

Practical Importance ◽

Hydroelectric Power Plant ◽

Technical Condition ◽

Hydroelectric Power Station ◽

Hydroelectric Power ◽

Underground Structures ◽

North Caucasus ◽

The Caucasus ◽

The North

Objective: Chirkeyskaya HPP is by far the most powerful hydroelectric power plant in the North Caucasus with the highest arched dam in Russia and the second highest dam in the country after the Sayano-Shushenskaya HPP. This explains why it is called the pearl of the Caucasus. Methods: For the operation and maintenance of this unique structure, a large-scale complex of underground structures for various purposes was built, the technical condition of which must be constantly monitored. To carry out work on the survey of underground structures, the management of the design and survey institute of JSC “Lengidroproekt” decided to attract specialists from the Department of Tunnels and Subways and the Test Center “Strength” of Emperor Alexander I Petersburg State Transport University. The work was successfully carried out at the end of 2015. Results: The safety of underground structures was objectively assessed. Recommendations for the repair and further comprehensive reconstruction of the Chirkeyskaya HPP have been developed. Practical importance: Carry out work on the survey of underground structures of Chirkeyskaya HPP is allowes elaborate of complex measures on safety from Chirkeyskaya HPP.

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IMPROVEMENT OF INFORMATION TECHNOLOGIES FOR DIAGNOSTICS OF TECHNICAL CONDITION OF HYDRAULIC STRUCTURES

Prirodoobustrojstvo ◽

10.26897/1997-6011/2020-1-34-41 ◽

2020 ◽

pp. 34-41

Author(s):

N.P. KARPENKO ◽

◽

I.F. YURCHENKO ◽

Keyword(s):

Information Technologies ◽

Technical Condition ◽

Hydraulic Structures

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Impact of Dam on Channel Morphology of Alaknanda River in Srinagar Valley (Garhwal Himalaya)

Himalayan Journal of Social Sciences and Humanities ◽

10.51220/hjssh.v14i1.3 ◽

2019 ◽

Vol 14 (1) ◽

Author(s):

Sapna Semwal ◽

D.D. Chauniyal

Keyword(s):

Negative Impact ◽

Hydroelectric Power Plant ◽

Field Investigation ◽

Channel Morphology ◽

Garhwal Himalaya ◽

Hydroelectric Power ◽

Human Environment ◽

Increasing Demand ◽

Sand And Gravel ◽

The Impact

Rivers play a significant role in the human activities all over the world. Increasing demand of water for drinking & irrigation and hydroelectricity, numbers of impacts can be seen in the rivers environment. The present paper focuses on the impact of Supana Dam on the channel morphology of Alaknanda River in Srinagar valley Garhwal Himalaya. The field investigation approach has been adopted for the present study. The impact assessment has been carried out into three categories i.e. (i) Impact of dam on channel morphology, (ii) Impact of dam on human environment and (iii) Anthropogenic impact on channel Morphology. The results of the study show that after the construction of dam positive and negative impact have been assessed. Due to the blockage of water and sediment flow the entire riverine environment has been changed. Channel morphological features are well exposed for geomorphological study. Changing pattern of land and water relationship destroyed the previous ecosystem balance. Besides this, dam is supplying cheapest clean, efficient and reliable energy generated by hydroelectric power plant. Other impacts of dam are loss of fauna and flora, quality of drinking water supply and concentration of pollution in downstream. Out of these large numbers of sand and gravel extraction activities has been started on the exposed channel bed. Although some positive and negative impacts are observed by the construction of dams but several measures have been suggested to mitigate the adverse impacts of a hydropower project in the present study area.

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EVALUATION AND OPTIMAL LOCATION'S SELECTION FOR MINI HIDRO POWER PLANT'S CONSTRUCTION ON RIVER VRBAS

САВРЕМЕНА ТЕОРИЈА И ПРАКСА У ГРАДИТЕЉСТВУ ◽

10.7251/stp1813398j ◽

2018 ◽

Vol 13 (1) ◽

Author(s):

Slađana Janković

Keyword(s):

Renewable Energy ◽

Negative Impact ◽

Renewable Energy Sources ◽

Hydroelectric Power Plant ◽

Hydroelectric Power ◽

Ahp Method ◽

Master Program ◽

Hydro Power ◽

Location Selection ◽

The Republic

The presented paper is part of a wider research related to the application of water, as a renewable source, which was made in the frame of master program with energy efficiency's topic. This paper analyzes aspects of the mini hydro power plant's construction (with installed power of 0.5 MW) for the energy-ecological development of the rural area and the application of renewable energy sources without negative impact on the environment. An analysis of 3 different locations on river Vrbas was performed using the AHP method and a selection of the most suitable location for the construction of this type of facility was made. At the beginning of the paper, the significance of the mini hydroelectric power plant is described in relation to the large, and later, the potential for the construction of facilities of this type in the wider region of the Republic of Srpska and BiH. The aim of paper is to show the importance of producing electricity using water as a renewable energy source and optimal location selection using the AHP method.

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Assessment of the Resistance Value of Trash Racks at a Small Hydropower Plant Operating at Low Temperature

Energies ◽

10.3390/en13071775 ◽

2020 ◽

Vol 13 (7) ◽

pp. 1775

Author(s):

Natalia Walczak ◽

Zbigniew Walczak ◽

Jakub Nieć

Keyword(s):

Hydroelectric Power Plant ◽

Free Flow ◽

Hydropower Plant ◽

Hydraulic Structures ◽

Hydroelectric Power ◽

Small Hydropower ◽

Frazil Ice ◽

Head Losses ◽

Hydropower Plants ◽

Proper Operation

Trash racks are the first element mounted in inlet channels of hydraulic structures. Their primary task is to capture coarse pollutants flowing in the riverbed/river channel and protect water facilities downstream. With the use of these devices, it is possible to separate coarse suspended matter, branches carried with the current, floating plastic elements, etc., which undoubtedly contributes to a trouble-free flow through culverts or channels and prevents hydroelectric power plant turbines from failure. An important issue here is also to ensure the proper operation of trash racks, particularly in respect of hydraulic structures whose task is to convert water energy into electricity (hydropower plants). Proper operation of trash racks minimizes losses arising from obstructing the free flow of water through accumulated waste or, in the wintertime, through icing. Incorrect work in this area entails specific head losses, and consequently leads to economic harm. In the paper, the resistance values of trash racks were analyzed at small hydropower plants (SHPs) operating at low temperatures, determined under laboratory conditions, with the occurrence of frazil ice and ice. The results indicate that the added ice into the channel resulted in the formation of a cover in front of the trash racks with an average thickness of about 0.02 m. The accumulated ice increased the head losses up to 14%. The range of the ice cover depended on the weight added ice and reached 0.6 m in analyzed cases.

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