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ENGINEERING AND ENVIRONMENTAL ASSESSMENT OF COASTAL PROCESSES OF WATER BODIES (ON THE EXAMPLE OF UGLICH RESERVOIR)

Vestnik MGSU 10/2017 Volume 12
  • Ostyakova Aleksandra Vitalyevna - Water Problems Institute of the Russian Academy of Sciences (WPI RAS) Candidate of Technical Science, Associate Professor, Senior Researcher, Laboratory of Dynamics of Channel Flows and Ice Thermal, Water Problems Institute of the Russian Academy of Sciences (WPI RAS), 3 Gubkina str., Moscow, 119333, Russian Federation.

Pages 1163-1171

Complex, intensive and often irrational utilization of water bodies in urbanized areas in recent years leads to a sharp deterioration of coastal areas, coastal erosion, deterioration of water quality, health and living conditions due to pollution. In general, the main factors in the active reorganization of the shoreline are due to the anthropogenic impact on the coasts that has increased in recent decades: intensive construction of residential buildings and coastal structures in water protection zones and pruning of coastal slopes for these purposes, unregulated discharges into the river or reservoir. Also, the control of water levels in reservoirs by hydro-technical structures has a great influence on the development of coastal erosion, and, as a consequence, the stability of slopes is changing. Subject: on the example of the Uglich reservoir, the acting factors contributing to the loss of stability of the coastal slope are presented, the characteristics of the soils that make up the shores are given. A short description and comparison of different methods for calculating the collapse volumes of undeveloped shores, including the case of different changes in the water level of the reservoir (draw-off), is given. Research objectives: determination of the volume of collapse of earth masses in case of a sharp change in the water level in the reservoir; comparison of different data on the example of the Uglich reservoir. Materials and methods: damage from the shore collapse is assessed by counting only the coastal lands lost for use, namely, the width of the shoreline deviation and the volume of collapse are determined. The volumes of collapse prisms are usually calculated by the well-known methods of soil mechanics. At the same time, there are other methods for calculating the volume of collapse, for example, by taking into account the wave action. More comprehensive analysis should include assessment of the state of water bodies and waterways and take into account social factors. Conclusions: the current regulatory framework appears inadequate and thus it is necessary to develop a comprehensive program and recommendations on bank protection and damage assessment from shore collapse.

DOI: 10.22227/1997-0935.2017.10.1163-1171

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