Evaluation of the Sediment Rate of the Water Reservoir of a Hydroelectric Plant Using the 210Pb Dating Technique: Case Study of the Vigário Reservoir, Piraí, RJ/Brazil

2021 ◽  
pp. 881-891
Author(s):  
C. D. Vieira ◽  
J. M. Godoy ◽  
M. N. Frota ◽  
L. Q. Viana ◽  
C. A. S. Farias ◽  
...  
Keyword(s):  
Hydroelectric Plant ◽  
Water Reservoir ◽  
210Pb Dating

Identification of MIB producers and odor risk assessment using routine data: A case study of an estuary drinking water reservoir

2021 ◽  
Vol 192 ◽  
pp. 116848
Author(s):  
Ming Su ◽  
Yiping Zhu ◽  
Zeyu Jia ◽  
Tingting Liu ◽  
Jianwei Yu ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Drinking Water ◽  
Water Reservoir ◽  
Routine Data ◽  
Drinking Water Reservoir

Post-work inspection for overbreak in tunnels: a case study application to the Alqueva hydroelectric plant

2021 ◽  
pp. 1-10
Author(s):  
Vidal Félix Navarro Torres ◽  
Carlos Dinis Da Gama ◽  
Juan Manuel Girao Sotomayor
Keyword(s):  
Hydroelectric Plant ◽  
Study Application

scholarly journals Control of Systems of Reservoirs with the Use of Risk Analysis

10.14311/538 ◽  
2004 ◽  
Vol 44 (2) ◽  
Author(s):  
P. Fošumpaur ◽  
L. Satrapa
Keyword(s):  
Risk Analysis ◽  
Flood Control ◽  
Water System ◽  
Water Reservoir ◽  
The Czech Republic ◽  
Run Off ◽  
Hydropower Plants ◽  
Basic Functions ◽  
And Control

A system of reservoirs is usually defined as a system of water management elements, that are mutually linked by inner and outer connections in a purpose-built complex. Combined elements consist of reservoirs, river sections, dams, weirs, hydropower plants, water treatment plants and other hydraulic structures. These elements also include the rainfall system, the run-off system, the ground water system, etc. A system of reservoirs serves many purposes, which result from the basic functions of water reservoirs: storage, flood control and environmental functions. Most reservoirs serve several purposes at the same time. They are so called multi-purposes reservoirs. Optimum design and control of a system of reservoirs depends strongly on identifying the particular purposes. In order to assess these purposes and to evaluate the appropriate set of criteria, risk analysis can be used. Design and control of water reservoir functions is consequently solved with the use of multi-objective optimisation. This paper deals with the use of the risk analysis to determine criteria for controlling the system. This approach is tested on a case study of the Pastviny dam in the Czech Republic.

scholarly journals Structural reliability assessment based on optical monitoring system: case study

2016 ◽  
Vol 9 (2) ◽  
pp. 297-305 ◽  
Author(s):  
E. Mesquita ◽  
P. Antunes ◽  
A. A. Henriques ◽  
A. Arêde ◽  
P. S. André ◽  
...  
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Structural Reliability ◽  
Extreme Values ◽  
Low Cost ◽  
Reliability Assessment ◽  
Water Reservoir ◽  
Optical Systems ◽  
Structural Health

ABSTRACT Optical systems are recognized to be an important tool for structural health monitoring, especially for real time safety assessment, due to simplified system configuration and low cost when compared to regular systems, namely electrical systems. This work aims to present a case study on structural health monitoring focused on reliability assessment and applying data collected by a simplified optical sensing system. This way, an elevated reinforced concrete water reservoir was instrumented with a bi-axial optical accelerometer and monitored since January 2014. Taking into account acceleration data, the natural frequencies and relative displacements were estimated. The reliability analysis was performed based on generalized extreme values distribution (GEV) and the results were employed to build a forecast of the reliability of the water elevated reservoir for the next 100 years. The results showed that the optical system combined with GEV analysis, implemented in this experimental work, can provide adequate data for structural reliability assessment.

scholarly journals Landslide-dammed lakes: a case study of the Lamabagar and Chaunrikharka landslide deposits, Dolakha and Solukhumbu districts, eastern Nepal

1998 ◽  
Vol 18 ◽  
Author(s):  
Christian F. Uhlir
Keyword(s):  
Lake Sediments ◽  
Hydroelectric Plant ◽  
Landslide Dam ◽  
Main Central Thrust ◽  
Three Generations

The Lamabagar and Chaunrikharka landslides occurred within the gneisses of the Higher Himalayan lithotectonic unit both about 10 km north of the Main Central Thrust (MCT). Both landslide deposits are in the range of 10 to 100 million m3 and show an abnormal long stability, which confirms that the big size, the cohesiveness of the material and quick siltation of the impoundment are the most important factors for the longevity of natural dams. The Lamabagar landslide dam (Fig. 1) with a height of about 300 m is standing since more than three generations and the impoundment is completely silted up. The relics of the early postglacial Cbaunrikharka landslide dam (Fig. 2) with a former height of about 100 m and the eroded lake sediments of the Gath-Phakting area exposes excellently its inventory. The most probably annually layered bottom-set sediments south of Gath indicate a lifetime of the dam of about 120 years. Terraces within the canyon of Chaunrikharka document a periodical downcutting of the dam. The stable landslide dam of Lamabagar represents a prospective site for a hydroelectric plant of about 30MW.

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