scholarly journals EVALUATION OF THE EFFECT OF PRECIPITATION ON THE APPARENT RESISTIVITY OF ROCKS IN BOREHOLES IN THE DAM AREA OF CHIRKEY HYDROPOWER STATION

2018 ◽  
Author(s):  
А.В. Дещеревский ◽  
Ш.Г. Идармачев ◽  
И.Ш. Идармачев
Keyword(s):  
Time Series ◽  
Electrical Resistance ◽  
Software Package ◽  
Impulse Noise ◽  
Measured Parameter ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Geological Processes ◽  
Analysis Of Time Series

Приведены результаты анализа временных рядов геофизических наблюдений в районе плотины Чиркейской ГЭС, проводимых с целью изучения опасных геологических процессов. Анализ временного ряда кажущегося электрического сопротивления горных пород в скважине с помощью пакета программ WinABD показал отсутствие влияния на измеряемый параметр импульсных помех, связанных с выпадением осадков до 50 мм The results of the analysis of time series of geophysical observations in the area of the dam of the Chirkei hydroelectric power station, aimed at the study of dangerous geological processes. Analysis of the time series of apparent electrical resistance of rocks in the well using WinABD software package showed no effect on the measured parameter of impulse noise associated with precipitation up to 50 mm

scholarly journals ANALYSIS OF THE INFLUENCE OF SEASONAL ATMOSPHERIC PARAMETERS ON THE APPARENT RESISTIVITY OF ROCKS IN A BOREHOLE LOCATED IN THE AREA OF THE STARBOARD SIDE OF CHIRKEY HYDROPOWER STATION DAM

2016 ◽  
Author(s):  
Ш.Г. Идармачев ◽  
И.Ш. Идармачев ◽  
А.В. Дещеревский
Keyword(s):  
Water Level ◽  
Electrical Resistance ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Electric Resistance ◽  
Seasonal Factors ◽  
High Regard ◽  
Temperature And Pressure ◽  
Simultaneous Influence ◽  
Analysis Of Time Series

В статье сделан анализ временных рядов уровня воды в Чиркейском водохранилище, температуры и давления атмосферы с целью определения влияния их на электрическое сопротивление пород в скважине, расположенной в районе правого борта высотной плотины ГЭС. На основе проведенного анализа установлено: 1) отсутствие влияний сезонных изменений температуры и давления атмосферы на электрическое сопротивление пород в скважине; 2) наличие высокой связи с коэффициентом корреляции 0,9 по модулю между сезонным изменением уровня воды в водохранилище и электрическим сопротивлением пород. В качестве механизма такого влияния рассматривается одновременное воздействие двух различных сезонных факторов, деформации пород и боковой фильтрации The article made the analysis of time series of water level in Chirkei reservoir, temperature and pressure of the atmosphere to determine its effect on the electrical resistance of rocks in the borehole located in the area starboard of the high dam hydroelectric power station. Based on the analysis found: 1) no effects of seasonal changes in temperature and pressure of the atmosphere on the electrical resistance of rocks in the borehole; 2) the presence of high regard with the correlation coefficient of 0.9 for the module between the seasonal change of water level in the reservoir and an electric resistance of rocks. As the mechanism of such influence is considered the simultaneous influence of two different seasonal factors, deformation of rocks and lateral filtering

scholarly journals Assessment of performance of turbo-alternators at the Jebba Hydroelectric Power Station in Nigeria from 2005 – 2014

2019 ◽  
Vol 38 (1) ◽  
pp. 134 ◽  
Author(s):  
I.O.A. Omeiza ◽  
H.A. Ojongbede ◽  
C.T. Thomas ◽  
B.J. Olufeagba
Keyword(s):  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Assessment Of Performance

Porous-concrete pipe drainage of the earth dam of the Riga Hydroelectric Power Station

1974 ◽  
Vol 8 (10) ◽  
pp. 914-916
Author(s):  
I. S. Ronzhin ◽  
A. D. Osipov ◽  
V. Kh. Gol'tsman ◽  
A. B. Yumatov
Keyword(s):  
Earth Dam ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Porous Concrete ◽  
The Earth ◽  
Concrete Pipe

scholarly journals The plant communities of classes Hydrochari-lemnetea Oberd. 1967 and Potametea tx. Et Prsg. 1942 of the Labudovo okno locality (Serbia)

2008 ◽  
pp. 101-107
Author(s):  
Dubravka Polic ◽  
Ruzica Igic ◽  
Slobodanka Stojanovic ◽  
Dejana Lazic
Keyword(s):  
Plant Communities ◽  
Hydroelectric Power Station ◽  
Left Bank ◽  
Hydroelectric Power ◽  
The South ◽  
Power Station ◽  
South Eastern ◽  
Dam Building

Labudovo okno locality (50 m-84 m elevation) is situated in the south-eastern part of the edge of the Pannonian Plains, resting along the left bank of the Danube between 1982 km and 1078 km. The investigated locality is the result of rise of the Danube level after dam building of the hydroelectric power station Djerdap I. The vegetation comprises aquatic associations of the classes Hydrochari-Lemnetea Oberd. 1967 and Potametea Tx. et Prsg. 1942. The class Hydrochari-Lemnetea Oberd. 1967 includes the following phytocoenoses: Lemno-Spirodeletum W. Koch 1954, Salvinio-Spirodeletum polyrrhizae Slavnic 1956, Lemno minoris-Azolletum filiculoides Br.-Bl. 1952, Ceratophylletum demersi (So? 27) Hild 1956. The class Potametea Tx. et Prsg. 1942 includes the associations Myriophyllo-Potametum So? 1934, Nympaeetum albo-luteae Nowinski 1928, Trapetum natantis M?lleret G?rs 1960.

scholarly journals Analysis of floodable areas of the Angara river

2020 ◽  
Vol 223 ◽  
pp. 03002
Author(s):  
Gachenko Andrey ◽  
Hmelnov Alexey
Keyword(s):  
Model Building ◽  
Hydroelectric Power Station ◽  
Application Software ◽  
Hydroelectric Power ◽  
Power Station ◽  
Terrain Model ◽  
Power Stations ◽  
Littoral Area ◽  
Bratsk Reservoir

In this work, the authors present a technology for riverside terrain model building that has been tested on a number of scientific projects to study the littoral area of tail race of the Irkutsk Hydroelectric Power Station and the Bratsk Reservoir. This model is used for forecasting changes in the reservoir shorelines associated with wastewater in the cascade of hydroelectric power stations. The technology described in the work was approved to solve a number of practical problems and showed its effectiveness. Specialized application software was developed and terrain data from various sources were used to specify and detail the end result.

scholarly journals History of buildingand operation of the Nizhny Tulom hydroelectric power plant on the Kola Peninsula.

2020 ◽  
Vol 11 (7-2020) ◽  
pp. 19-32
Author(s):  
Olga E. Konovalova ◽  
◽  
Nikolai M. Kuznetsov ◽  
Keyword(s):  
Hydroelectric Power Plant ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Construction Time ◽  
Current State ◽  
Production And Consumption ◽  
Great Patriotic War ◽  
History Of ◽  
The Cost

The article tells the story of the creation of the Nizhne-Tulomskaya hydroelectric power station (HPP). The main energy parameters of the hydroelectric power station, the layoutof the main structures of the station, and archival photos of the construction time are given. Data on the production and consumption of electricity for own needs, the cost of 1 kW·h during the great Patriotic war are shown. It is told about the reconstruction and current state of the station.

scholarly journals Numerical hydrodynamic researches for justifying design of the Nizhny Novgorod low-head hydraulic system

2019 ◽  
pp. 3-3
Author(s):  
Anna Glotko ◽  
Vitalii Belikov ◽  
Natalia Borisova ◽  
Ekaterina Vasil`eva ◽  
Aleksey Rumjancev
Keyword(s):  
Numerical Methods ◽  
Hydraulic System ◽  
Problem Area ◽  
Low Flow ◽  
Hydroelectric Power Station ◽  
Two Dimensional ◽  
Hydroelectric Power ◽  
Flow Conditions ◽  
Power Station ◽  
Low Head

Introduction. A problem area of the Volga river between the Nizhny Novgorod hydroelectric power station and the city of Nizhny Novgorod has been surveyed, where unfavourable conditions for navigation, power generation, and safe living in the downstream are formed as a result of the landing level. The only solution to the problem is construction of a low-head hydraulic system (NNGU) that will reduce intensity of relief re-formations in the downstream of the Nizhny Novgorod hydraulic system and stop lowering of the bottom and level marks in this area. Purpose of this research is to study processes that occur upstream and downstream from the site of the facility to identify hazardous trends and develop practical solutions to minimize negative impacts; as well as a review of mathematical models conducted in this area for improving navigation conditions. Materials and methods. Materials of previous researches on this subject, pre-design engineering surveys and layout drawings of the designed hydraulic system are used. The researches have been performed with numerical methods using Stream 2D software package that is based on the two-dimensional differential equation Saint-Venant system. Options for low-flow conditions are considered, taking into account passing of the Nizhny Novgorod hydroelectric power station, as well as rare floods. Results. Plans for distribution of velocity modules and vectors are created, which show that construction of the low-pressure hydraulic system results in decrease in slopes and velocities of water in the problem area of the Volga-Kama cascade, as a result of which intensity of bottom deformations decreases. Rare flow passage demonstrated that difference in pools is insignificant, while, at the same time, flow of water along the left-bank floodplain passes more than believed before. Calculations of low-flow conditions demonstrated a number of deficiencies in the design, which are associated with insufficient throughput and uneven distribution of flow rates in the discharge area of the waterfront. Conclusion The results demonstrated a practical importance of using mathematical simulation with numerical methods in a two-dimensional formulation, which allow us to consider processes in more detailed manner and change the hydraulic system design in a timely manner.

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