Power Technology and Engineering

Solsky, S. V.; Zakharova, S. A.; Afonin, P. V.; Naumov, V. V.

2024 Power Technology and Engineering

doi: 10.1007/s10749-024-01822-x

This article discusses the use of geosynthetic materials (GSM) in hydraulic engineering and civil engineering. On the basis of practical experience, the aspects of conducting specialized laboratory tests to determine GSM quality indicators and to select the most suitable material for solving design problems are described, based on the GSM operation efficiency as part of a structural element of an earth hydraulic engineering structure.

Kotlov, O. N.; Vilkevich, E. V.; Rozhdestvenskaya, V. V.; Legina, E. E.; Kuzmin, N. V.

2024 Power Technology and Engineering

doi: 10.1007/s10749-024-01823-w

The object of research was the territory of a planned construction of the second stage of a tailings storage facility for flotation tailings of a mining and processing complex based on a gold ore field. To comply with legislative and regulatory requirements regarding environmental protection, a set of works was performed, including laboratory and computational filtration studies. Recommendations were developed based on them to prevent filtration through the flotation tailings storage bed.

Tsimbelman, N. Ya.; Chernova, T. I.; Ivannikov, D. Yu.; Kuzovatkin, I. V.; Babkin, V. N.

2024 Power Technology and Engineering

doi: 10.1007/s10749-024-01824-9

The authors discuss the possibility of using combined structures consisting of blocks filled with crushed stone in hydraulic engineering construction. Tasks are set and problems of using soil-filled blocks as part of bank protection structures are identified. Then, calculations are given, and the construction of the structural elements of a slipway in Narva Bay, Primorsky Kray, is illustrated.

Klimovich, V. I.; Yakovlev, R. O.

2024 Power Technology and Engineering

doi: 10.1007/s10749-024-01825-8

The article presents the results of experimental studies of the stability of gabion scour protection near a marine berthing hydraulic structure (hereinafter referred to as HS) under the influence of jets from operating ship propellers. It has been determined that the most critical area is the zone where the scour protection adjoins the structure.

Shipilov, A. V.; Tikhonova, T. S.; Pechantikova, O. A.

2024 Power Technology and Engineering

doi: 10.1007/s10749-024-01826-7

The article provides an example of employing a neural network and a natural language model to develop the database of failures and emergencies at hydroelectric power stations around the world that is available at JSC Vedeneev VNIIG. Using particular examples in conjunction with the t-SNE machine learning algorithm for visualization and the DBSCAN data clustering algorithm, the study shows an approach for enhancing the database. This technique enables a remarkable improvement in the selection of analog objects when justifying accident scenarios.

Laboyko, R. Yu.; Solsky, S. V.

2024 Power Technology and Engineering

doi: 10.1007/s10749-024-01827-6

The article describes the specific features and difficulties of monitoring the condition of an embankment dam with a clay-cement-concrete diaphragm. Moreover, it provides an overview and an evaluation of the applied monitoring methods. Additions to the existing set of measures for monitoring embankment dams with a clay-cement-concrete diaphragm are proposed.

Petrov, O. A.

2024 Power Technology and Engineering

doi: 10.1007/s10749-024-01828-5

The article explores the issues related to erosion of unprotected banks and damage to their stabilization structures in the downstream reaches of hydroelectric schemes during spillway operation. The study covers 10 hydraulic facilities where banks were damaged due to wave and velocity effects. Examples are given both for the case of jet throw-off from the structure and for the option of excess stream power dissipation against the bank protection.

Alekseevskaya, M. V.; Sudolsky, G. A.; Shilyaev, A. V.; Holov, F. A.

2024 Power Technology and Engineering

doi: 10.1007/s10749-024-01829-4

A large-scale physical model was used to determine the hydrodynamic load on the radial gates of a diversion tunnel. The conditions for closing the emergency-repair slide gates were studied as well. The optimal dimensions of the structures for supplying air to the chamber of radial gates are substantiated.

Aleksandrov, A. V.

2024 Power Technology and Engineering

doi: 10.1007/s10749-024-01830-x

The results of geophysical and geological field studies of the soil bed of the Zagorsk PSPP-2 during the leveling of the powerhouse are reported. It is shown that the mechanical properties of the bed of a hydraulic structure are improved by leveling injections. The possibility of changing the properties of the soft-soil bed of a structure is confirmed.

Minaev, O. P.

2024 Power Technology and Engineering

doi: 10.1007/s10749-024-01831-w

Russian scientists in the field of hydrotechnical construction, soil dynamics and seismicity, vibration equipment and technologies have developed world-class equipment for dynamic soil compaction and quality control during the construction of tall hydroelectric dams in narrow canyons in earthquake-prone zones. This equipment includes K-701VK heavy vibrating rollers produced at the Kirov Plant in St. Petersburg and heavy dual-weight tampers dropped from self-propelled cranes. Domestic compaction machines should be used in constructing large earth-fill dams in Dagestan (Russia), Tajikistan, Kyrgyzstan, and other CIS countries, designed by Russian hydraulic engineers to supply energy to CIS countries and sell competitive electricity abroad. Along with hydrotechnical construction, the K701M-VR vibrating roller and heavy dual-weight tampers are recommended for compaction of a wide range of soils and ground materials in bottoming high-class highways and railroads, constructing airfield pavements, etc.