In this article, the results of model studies to determine the value of filtration in different soil layers that form the foundation of the dam for different filling of the reservoir are given and empirical dependences of the filtration level on the amount of filling of the reservoir are given. When conducting research and evaluating the ongoing filtration processes at the dam base, experimental research methods were used using well-known principles of physical modeling on a specially modeled hydraulic model unit. When analyzing the results of experimental studies, methods of mathematical statistics were applied and graphical and empirical dependences were obtained showing the relationship between the pressure in front of the dam and the filtration pressure at the base of the dam. Under the conditions of the physical model, for different filling of the reservoir, the filtration values in different soil layers composing the dam base are determined and empirical dependences of the filtration level on the reservoir filling are obtained.
Many scientists of the world were engaged in the study and development of various schemes and models of hydraulic elevators for the purpose of excavation and hydraulic transport of hydraulic mixtures [1-22]. For the specific conditions of the selected research object, we determined the main sizes and parameters of the hydraulic elevator, which allows cleaning the water area of the bottom water intake of the spillway of the Tupalang hydroelectric station, using the hydrostatic pressure at the object concentrated in front of its dam. To clarify the particle size distribution of sediment deposited at the inlet head of the water intake of the Tupalang reservoir water outlet, samples of bottom sediments were taken and their particle size distribution was analyzed in laboratory conditions. At the water intake area of the 1st tier of the Tupalang reservoir, the deposited sediments are represented by smaller particles, the diameter of which is from 5 mm to 0.1 mm, and in percentage terms, their share is 95%. The main results are given for calculating and justifying the parameters of a hydraulic elevator for cleaning sediment from the water area of the inlet head of the water outlet structure of the first tier of the Tupalang reservoir. When determining and substantiating the main sizes of the hydraulic elevator, theoretical and experimental research methods were used, and the method of S.M.Shtin was applied.
The aim of the work is to develop theoretical and methodological foundations for predicting the likelihood of fires in the premises of hydroelectric power plants, as well as compiling algorithms for monitoring the fire safety system, the “Serviceability control” technological process and the “Fire” technological process. In the course of the work, theoretical studies of methods for assessing the safety of power generating enterprises in the “man -machine -environment” system and ways of occurrence of emergency situations at power plants were carried out. The analysis of methods for assessing the safety of power plants in the “man -machine -environment” system is considered and the analysis of the ways of occurrence of emergency situations at power plants, as well as the types of fires and the peculiarities of their detection in the premises of the hydroelectric power plant. And an attempt is made to solve the problem of super-early detection of fires and fires in the system under consideration. The theoretical and methodological foundations for predicting the probability of fires depending on the operating modes of systems, devices and equipment and a compiled model of a fire hazard monitoring system are given.
Up to 2021, 42 new hydropower stations will be created in Uzbekistan and 32 existing hydropower stations will be repaired. Hydraulic engineering designers face a number of problems with the open flow division nodes in the field, which are part of the hydraulic structures of such hydropower plants. Considering the above, the main objectives of the research were determined: a) development of a refined method for the hydraulic calculation of flow division nodes with a quiet flow regime; b) the development of methods for predicting deformation of the channel in the area of the division node. The studies were carried out using theoretical and experimental studies using the equation for changing the amount of movement, laboratory studies on a hydraulic model, field surveys of existing water intake nodes, as well as analysis of experimental data available in the literature on this issue. Based on the theoretical and experimental studies, recommendations were made for the open flow division nodes. These recommendations are valid for division nodes at a division angle not exceeding 90°, for prismatic channels of rectangular cross section with relatively small bottom slopes. These recommendations are intended for flows with values of B / H = 3 ÷7.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.