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SEDIMENT TRANSPORT IN SPECIFIC AREASOF VOLGA-CASPIAN SHIPPING CANAL

Vestnik MGSU 6/2013
  • Krivitskiy Sergey Vladimirоvich - Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU) Candidate of Geographical Sciences, Senior Researcher, Professor, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Arkhipov Boris Vital’evich - Dorodnitsyn Computing Center of Russian Academy of Sciences (СС RAS) Candidate of Physical and Mathematical Sciences, Senior Researcher, Head of Department, Dorodnitsyn Computing Center of Russian Academy of Sciences (СС RAS), 40 Vavilova st., Moscow, 119333, Russia Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Solbakov Vyacheslav Viktorovich - Dorodnitsyn Computing Center of Russian Academy of Sciences (СС RAS) Candidate of Physical and Mathematical Sci- ences, Senior Researcher, Dorodnitsyn Computing Center of Russian Academy of Sciences (СС RAS), 40 Vavilova st., Moscow, 119333, Russia Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Solov’ev Mikhail Borisovich - Dorodnitsyn Computing Center of Russian Academy of Sciences (СС RAS) Candidate of Physical and Mathematical Sciences, Re- searcher, Dorodnitsyn Computing Center of Russian Academy of Sciences (СС RAS), 40 Vavilova st., Moscow, 119333, Russia Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 177-188

Volga-Caspian shipping canal is the main waterway linking the port of Astrakhan with ports of the Caspian sea. Currently, the Caspian Sea fall and sediment transport make ship owners suffer from substantial financial losses. Critically small canal depth in combination with poor weather and hydrodynamic conditions complicate piloting and make vessels stop for a few days. One of the main conditions of operation of this sea transport route is the navigation safety in the context of the further fall of the Caspian sea.The main objective of this study is to evaluate the sediment transport in some areas of the canal. Numerical modeling of the sediment transport was performed for some of its areas to assess its sedimentation.At first, the numerical model of the climatic conditions of the Caspian sea was developed to evaluate sediment transport processes based on specific morphometric and hydrodynamic factors. Model calculations demonstrate that currents bring sediments into the canal. Also, the numerical simulation proves that a seawall may effectively reduce wind and wave actions. According to the results of the numerical simulation, recommendations are generated to reduce the sedimentation.The numerical model can be employed to project the sediment transport pattern and subsequent optimization of dredging works. Bioengineering technologies that may protect the sea canal from the sediment transport are considered.

DOI: 10.22227/1997-0935.2013.6.177-188

References
  1. Otchet o NIR «Issledovanie gidrometeorologicheskogo rezhima i modelirovanie protsessov zanosimosti morskoy chasti VKMSK» [Research into Hydrometeorological Regime and Simulation of Sediment Transport in the Marine Section of Volga-Caspian Shipping Canal]. Arch. No. 3-05/NIR. Moscow, Ekopriroda Ltd Publ., 2012, 117 p.
  2. Blumberg A.F., Mellor G.L., Heaps N., editor. A Description of a Three-dimensional Coastal Ocean Circulation Model. Three-Dimensional Coastal Ocean Circulation Models. American Geophysical Union. Washington, D.C., 1987, vol. 4, 208 p.
  3. Booij N., Holthuijsen L.H., Ris R.C. The “SWAN” Wave Model for Shallow Water. Proc. 25th Int. Conf. Coastal Engng, Orlando, 1996.
  4. Zhou Liu. Sediment Transport. Aalborg Universitet, 2001.
  5. Delft3D-FLOW. User Manual Version: 3.15. Revision: 18392 (7 September 2011). Delft, Deltares, 2011.
  6. Delft3D developers community website. Available at http://oss.delft3d.nl. Date of access: 08.07.2012.
  7. SNiP 2.06.04—85*. Vetrovye i volnovye nagruzki [Construction Rules and Regulations 2.06.04—85*. Wind and Wave Loads]. Moscow, Gosstroy Publ., 1986, 40 p.

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OPERATING SAFETY OF FOUNDATIONS OF BUILDINGS AND STRUCTURES UNDER DYNAMIC IMPACT

Vestnik MGSU 5/2017 Volume 12
  • Ter-Martirosyan Armen Zavenovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor of the Department of Soil Mechanics and Geotechnics, Head of Research and Education Center «Geotechnics», Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Sobolev Evgeniy Stanislavovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Senior Lecturer, Department of Soil Mechanics and Geotechnics, researcher at the Research and education center «Geotechnics», Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 537-544

Ensuring the safe operation of buildings and structures of increased responsibility in complex engineering and geological conditions requires a special approach to engineering surveys and construction. When designing ground bases, it is necessary to take into account the dynamic effects of man-made or natural origin. In this case, it is necessary to provide for a complex of special studies of the foundation soils. The results of the investigations make it possible to obtain the mechanical properties of soils necessary for subsequent calculations. As a rule, calculations are performed in modern software systems by numerical simulation of the "foundation-construction" system. Forecasting the stress-strain state of the soil base, taking into account special studies of soils and numerical modeling, allows to ensure strength and stability, as well as safe operation of the proposed structure during its entire service life.

DOI: 10.22227/1997-0935.2017.5.537-544

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