Development and improvement of erection of mechanical equipment and metal components of hydraulic structures over the past 50 years

1980 ◽  
Vol 14 (12) ◽  
pp. 1257-1267
Author(s):  
G. A. Polonskii
Keyword(s):  
Hydraulic Structures ◽  
Mechanical Equipment ◽  
The Past

Current state and prospects of development of mechanical equipment of hydraulic structures

1980 ◽  
Vol 14 (12) ◽  
pp. 1247-1256 ◽  
Author(s):  
V. Ya. Martenson ◽  
A. R. Freishist
Keyword(s):  
Hydraulic Structures ◽  
Mechanical Equipment ◽  
Current State

Paint and varnish coatings for protecting mechanical equipment for river hydraulic structures against corrosion

1967 ◽  
Vol 1 (3) ◽  
pp. 243-247
Author(s):  
B. S. Chesnokov ◽  
Yu. M. Gurevich ◽  
M. L. Litvak ◽  
M. I. Puchkova
Keyword(s):  
Hydraulic Structures ◽  
Mechanical Equipment

scholarly journals Construction, operation, and maintenance of rubber dams

2002 ◽  
Vol 29 (3) ◽  
pp. 409-420 ◽  
Author(s):  
X Q Zhang ◽  
P W.M Tam ◽  
W Zheng
Keyword(s):  
Flood Control ◽  
Management Practices ◽  
Hydraulic Structure ◽  
Hydraulic Structures ◽  
Maintenance And Repair ◽  
Rubber Dam ◽  
The Past ◽  
Operation And Maintenance ◽  
Construction Operation ◽  
Rubber Dams

Rubber dams are inflatable and deflatable hydraulic structures. Thousands of rubber dams have been installed worldwide for various purposes: irrigation, water supply, power generation, tidal barrier, flood control, environmental improvement, and recreation. Furthermore, rubber dams have been used in cold areas where the temperature is as low as – 40°C. The simplicity and flexibility of the rubber dam structure and its proven reliability are key considerations in its wide scope of applications. Based on the management practices of 20 rubber dams in Hong Kong in the past 35 years, interviews with rubber dam experts and practitioners, and the investigation to the construction of a recent rubber dam, this paper provides a detailed discussion on various issues related to the construction, operation, maintenance, and repair of rubber dams.Key words: construction, hydraulic structure, maintenance, operation, repair, rubber dam.

scholarly journals Collaborative Development of High Resolution Pluvial Flood Maps for Flanders

10.29007/nxqj ◽  
2018 ◽  
Author(s):  
Kris Cauwenberghs ◽  
Tom Feyaerts ◽  
Neil Hunter ◽  
Joost Dewelde ◽  
Thomas Vansteenkiste ◽  
...  
Keyword(s):  
High Resolution ◽  
State Of The Art ◽  
Hydraulic Structures ◽  
Detailed Data ◽  
Low Countries ◽  
Web Technologies ◽  
The Past ◽  
History Of ◽  
Flood Maps

As part of the low countries and with one of the highest population densities worldwide, the Flemish region has experienced a long history of flooding causing tens of millions euro damage each year. In response to this, water managers invested over the past decade in flood modelling and mapping with a fluvial origin. In recent years, pluvial flooding has also occurred numerous times in Flanders, but a region-wide map describing these processes more in detail in terms of extent, depth and probability was lacking. Following a pilot-study in 2016, the VMM undertook in 2017 the VLAGG1- project to develop a region-wide, high-resolution pluvial flood map for Flanders. Via a combination of state-of-the art methodologies and web technologies, a draft flood map was presented to a broad reviewing community across Flanders, who were then able to improve it further by adding local knowledge on known flooding and more detailed data on key hydraulic structures. In a three month period, over 7000 additions were made by 370 delegates from 165 organizations that have been incorporated into, and significantly improved the quality of the final flood maps which are due to be published in 2019.

scholarly journals Preliminary estimate of floods discharge in Brazil using Creager envelope curves

RBRH ◽  
2017 ◽  
Vol 22 (0) ◽  
Author(s):  
Guilherme de Lima ◽  
Silvana Susko Marcellini ◽  
Charles Robert Neill ◽  
Márcio Ricardo Salla
Keyword(s):  
River Basins ◽  
Hydraulic Structures ◽  
Empirical Equations ◽  
Preliminary Estimate ◽  
The Past ◽  
Main River ◽  
Hydroelectric Projects ◽  
Sophisticated Analysis ◽  
Official Data ◽  
Peak Discharges

ABSTRACT Hydrologic studies are essential for the design and safety of hydraulic structures. In the past, a number of empirical equations were developed to represent relationships between drainage areas and observed peak discharges. Although these empirical equations have not been used frequently to study peak discharges due to the use of more detailed and sophisticated analysis, they can be used to estimate reference values, especially in ungaged sites. The objective of this paper is to assess peak discharges observed in many regions in Brazil, estimate the 10,000-year discharges according the Guia para Cálculo de Cheia de Projeto de Vertedores from Eletrobrás and compare them to the Creager envelope curves. In this study we used the records of naturalized discharges for the period of 1931 to 2012, for 131 hydroelectric projects selected in the main river basins in Brazil, using the official data published by the Operador Nacional do Sistema Elétrico (ONS) for the Sistema Interligado Nacional (SIN). The results presented in this paper show that it is possible to use the Creager envelope curves as a preliminary estimate of the design floods in Brazil. Generally, values of the Greager C coefficient between 60 and 100 are recommended for a preliminary estimate of a range of maximum discharges within drainage areas bigger than 10,000 km2. The results can be used in the preliminary estimate of maximum discharges and 10,000-year discharges for sites with no data using C values obtained from areas with enough data in the same river basin and with similar physical characteristics.

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