scholarly journals Substantiation of counter­vortex spillway structures of hydrotechnical facilities

2018 ◽  
Vol 1 (8 (91)) ◽  
pp. 24-32 ◽  
Author(s):  
Valeriy Volshanik ◽  
Genrikh Orekhov
Keyword(s):  
Spillway Structures

Discussion: Heave of Spillway Structures on Clay Shales

1964 ◽  
Vol 1 (2) ◽  
pp. 115-120
Author(s):  
R M Hardy ◽  
C F Ripley ◽  
R Peterson ◽  
N Peters
Keyword(s):  
Clay Shales ◽  
Spillway Structures

scholarly journals Studies of the movement of ice through low-pressure waterworks

2021 ◽  
Vol 2131 (3) ◽  
pp. 032072
Author(s):  
N Fomicheva ◽  
D Panov ◽  
A Kalashnikov
Keyword(s):  
Flow Dynamics ◽  
Body Motion ◽  
Hydraulic Structures ◽  
Bending Moments ◽  
Laboratory Studies ◽  
Movement Velocity ◽  
System Solution ◽  
Convenient Formula ◽  
Spillway Structures ◽  
Ice Floes

Abstract Passage of ice through hydraulic structures is a significant and urgent issue for study. When examining this issue, various conditions should be taken into account. Thus, the successful passage of ice through hydraulic structures depends both on ice characteristics, the parameters of the spillway structures, and on the ice movement velocity in front of the spillway. The goals have been formed; the research tasks have been set. As a result, a theoretical solution to determine the bending moments necessary for calculating the fracture of ice floes has been obtained. The proposed analytical solution for determining the bending moments is found based on a system solution of differential equations of a rigid body motion in a fluid. The assumptions made for this case are set out in the article. The resulting dependence makes it possible to determine the bending moments in any section of the ice section and take into account the flow dynamics. A complex of laboratory studies was carried out, aimed at studying the ice movement velocities on the developed and manufactured model of a spillway with a wide threshold, in front of which an auxiliary threshold is installed to create a concentrated fall. The dependence for determining the velocity in the form of a trigonometric function is obtained and converted into a convenient formula. The performed calculations are compared with the field data and satisfactory results are given.

Combined solution: the structures of the A120 Little Hadham bypass and flood alleviation scheme

2021 ◽  
Author(s):  
C. Jackson ◽  
G. Ledsham-James ◽  
F. Aparicio-Baneres
Keyword(s):  
Heavy Traffic ◽  
Cost Effective ◽  
Commercial Viability ◽  
Combined Solution ◽  
Multiple Issues ◽  
Major Bottleneck ◽  
Spillway Structures ◽  
The Uk ◽  
The Village ◽  
East West

<p>The village of Little Hadham in the UK has suffered from heavy traffic, air pollution and flooding over many years. The village also creates a major bottleneck to traffic flows on the main A120 road through the region, a major east west route crucial for the prosperity of the East of England.</p><p>These multiple issues are being resolved though the construction of a combined bypass and flood alleviation scheme. By combining the resources and requirements of the highway and environmental authorities the scheme provides a sustainable and cost-effective solution to these issues with highway embankments and bridges also acting as flood alleviation dams and spillway structures. These combined benefits ensured the commercial viability of the scheme.</p><p>This paper gives an overview of the structures and design challenges faced and how the requirements of the two functions have been combined into a single solution that ensures the future of Little Hadham and promotes growth in the region as a whole.</p>

Guide to protecting spillway structures from cavitation

1977 ◽  
Vol 11 (9) ◽  
pp. 948-949 ◽  
Author(s):  
Yu. U. Édel'
Keyword(s):  
Spillway Structures

Improvement of methods of calculation of transformation vnutrikletochnogo flood flow

2020 ◽  
pp. 20-23
Author(s):  
Sergey Vasilenkov ◽  
Valentina Krovopuskova ◽  
Yuriy Mazhayskiy
Keyword(s):  
Mathematical Model ◽  
Water Flow ◽  
Air Temperature ◽  
Small Rivers ◽  
Snow Melting ◽  
Small Catchment ◽  
Methods Of Calculation ◽  
Catchment Areas ◽  
Spillway Structures ◽  
Flood Flow

The purpose of the study is to develop a method for calculating flow schedules in the dams ‘ spillway structures, to consider the regularities of the flood flow transformation as a result of exceeding the inflow over the discharge of water into the pond. Given this process in the design of ponds, it is possible to reduce the maximum consumption and, accordingly, reduce the size of the spillway structures and their cost. The object of the study are ponds with small catchment areas, which are characterized by intra-day fluctuations in water flow due to intra-day fluctuations in air temperature and different rates of snow melting during the day. Most of the ponds in the Bryansk region are built on gullies, ravines, streams, very small rivers with small catchment areas, for which it is especially important to improve the methods of calculating the transformation of intraday flood flow and forecasting the shape of hydrographs, the search for the least time-consuming and the most acceptable methods of calculation. The proposed mathematical model allows to optimize the calculations.

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