In considered article the results are presented of the carried out researches on high-mountainous lakes of the Tashkent area. Visual inspection of a modern condition of natural dams of considered high-mountainous lakes of the Tashkent oblast is carried out. On the basis of the analysis of visual inspection it is possible to note, that the common technical condition of natural dams of the submitted high-mountainous lakes safe and does not represent danger to downstream situated territories. It was carried out the modeling of occurrence of emergency situation on high-mountainous lakes of the Tashkent oblast in case of full or partial destruction of natural dams. By an available calculation method of flooding waves are determined its key parameters, height of a wave, speed of distribution of a wave of break on the certain distances and reaching time the given wave up to the certain distances. On the basis of calculation method have been calculated and put on cross-sections of the rivers Pskem and Kocy zones of possible flooding in full and partial destruction of dams of high-mountainous lakes. Results of the carried out calculations have been put on the digital map, created on platform ArcView 3.2a.
The issues of the availability of irrigation water in the southern regions of Uzbekistan, the existing problems in machine irrigation systems, as well as the disadvantages and advantages of the proposed solutions, are analyzed. In analyzing the current situation, a systematic approach was used to address the issue of the availability of irrigation water in the southern regions of Uzbekistan. When choosing the most optimal options for laying the channel, modern methods of GIS technology were used. A situational analysis showed that water availability in the southern regions of the republic is complicated by the change and violation of the hydrological regime of the river basin by the construction of large reservoirs in its upper reaches. To solve problems with the security of the southern regions of the republic, a new concept is proposed for transferring part of the river flow. The proposed new concept of the transfer option differs from the previous ones by a) There are no additional costs for renting the territory of Turkmenistan; b) Conditions are being created for the development of various infrastructures in the southern regions of the republic; c) The construction of a reservoir on the territory of the Surkhandarya region will allow the danger of overflow of the Tuyamuyun reservoir in the winter and increase water supply to the Surkhandarya, Kashkadarya and Bukhara regions of the republic.
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.
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.
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