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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

EXPERIMENTAL STUDY OF WAVE FLOWS AROUND THE FINITE LENGTH VERTICAL WALL

Vestnik MGSU 7/2012
  • Tran Long Giang - Moscow State University of Civil Engineering (MSUCE) postgraduate student, Department of Hydraulic Engineering, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Kantarzhi Igor' Grigor'evich - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zuev Nikolay Dmitrievich - Moscow State University of Civil Engineering (MSUCE) Candidate of Technical Sciences, Project Manager, Marine Research Laboratory, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shun'ko Natal'ya Vladimirovna - Moscow State University of Civil Engineering (MSUCE) Director, Marine Research Laboratory, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 101 - 108

Construction of breakwater structures of modern seaports requires computational models describing interaction of waves with structural elements of ports. The model should be based on numerical hydrodynamic models that contemplate all constituents of interaction between waves and structures, including those at various stages of construction. The above model makes it possible to have construction works performed in accordance with the pre-developed plan. Experimentalresearch of the behaviour of breakwater structures is to be conducted in laboratories. A scaled natural model is to be used for the above purpose to verify the model behaviour. The authors consider the methodology and results of experiments involving models of wave loads produced on vertical breakwater structures at various stages of their construction.
On the basis of the experiments conducted by the authors, it is discovered that the value of the total wave force, that the vertical wall is exposed to, increases along with the wall length in the event of a constant wave mode, which is natural. However, the per-meter value of the wave force increases along with the increase in the length of the wall until it reaches the value of the length of a transverse obstacle divided by the length of waves equal to 0.28; thereafter, the wave force goes down. The authors assume that this phenomenon is caused by the change in the nature of interaction between waves and an obstacle and a transition from a diffraction-free flow to a diffraction flow. The authors believe that further researches are necessary to explore the phenomenon.

DOI: 10.22227/1997-0935.2012.7.101 - 108

References
  1. SNiP 2.06.04—82*. Nagruzki i vozdeystviya na gidrotekhnicheskie sooruzhenya (volnovye, ledovye i ot sudov) [Construction Norms and Rules 2.06.04—82*. Loads and Actions on Hydraulic Structures (Waves, Ice and Vessels). GOSSTROY SSSR [State Committee for Construction] Publ., Moscow, 1989.
  2. Weggel J.R., Maxwell W.H. Numerical Model for Wave Pressure Distributions. Proc. ASCE, J. Waterw. Harbors Coastal Eng. Div, 1970, WW3: 623—642.
  3. U.S. Army Corps of Engineers. Coastal Engineering Manual (CEM), 2006, Veri-Tech, Inc., Washington, DC.
  4. Minikin R.R. Winds, Waves and Maritime Structures. Charles Griffin, 1950, London.
  5. Tran L.G. and Kantardgi I.G. Volnovye nagruzki i ustoychivost’ ekraniruyushchey stenki portovogo mola v period stroitel’stva [Wave Load and Stability of the Port Mole Wall in the Period of Construction]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 5, pp. 48—53.
  6. Hattori M., Arami A., and Yui T. Wave Impact Pressure on Vertical Walls under Breaking Waves of Various Types. Coastal Eng, 1994, vol. 22, pp. 79—114.
  7. Tran L.G. and Kantardgi I.G. Numerical Study of the Wave Load on the Reflecting Wall of the Port Mole at the Construction Stage. European Researcher Publ., 2011, no. 5—1(7).
  8. Lappo D.D., Strekalov S.S., Zav’yalov V.K. Nagruzki i vozdeystviya vetrovykh voln na gidrotekhnicheskie sooruzheniya [Loads and Actions of Wind Waves Produced on Hydraulic Structures]. Leningrad, VNIIG Publ., 1990.
  9. Peregrine D.H. Water-wave Impact on Walls. Annu. J. Rev. Fluid Mech, 2003, vol. 35, pp. 23—43.
  10. Shakhin V.M., Shakhina T.V. Metod rascheta difraktsii i refraktsii voln [Method of Analysis of Diffraction and Refraction of Waves]. Okeanologiya Publ., 2001, vol. 41, no. 5, pp. 674—679.
  11. Brebbia C. A., Walker S. Dinamika morskikh sooruzheniy [Dynamic Analysis of Offshore Structures]. Leningrad, Sudostroenie Publ., 1983.
  12. Kirkg?z M.S. An Experimental Investigation of a Vertical Wall Response to Breaking Wave Impact. Ocean Eng, 1990, vol. 17(4), pp. 379—391.
  13. Blackmore P.A., Hewson P.J. Experiments on Full Scale Wave Impact Pressures. Coastal Eng, 1984, vol. 8, pp. 331—346.
  14. Tlyavlin R.M. Pronitsaemye volnogasyashchie gidrotekhnicheskie sooruzheniya v zhestkom karkase [Permeable Wave Cancelling Hydraulic Structures That Have Rigid Frames]. Sochi, 2006, 153 p.

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Construction of water intake facilities from partially drying up watercourses

Vestnik MGSU 2/2015
  • Orlov Evgeniy Vladimirovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Scienc- es, Associate Professor, Department of Water Supply, 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 .
  • Komarov Anatoliy Sergeevich - LLC “GLAKOMRU” Candidate of Technical Sciences, Director General, LLC “GLAKOMRU”, B. Koptevskiy proezd, Moscow, 8105039, Russian Federation; +7 (499) 183-54-56; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Mel’nikov Fedor Alekseevich - Moscow State University of Civil Engineering (MGSU) student, Institute of Engineering and Ecological Construction and Mechanization, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499)183-36-29; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Serov Aleksandr Evgen’evich - Moscow State University of Civil Engineering (MGSU) student, Institute of Engineering and Ecological Construction and Mechanization, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499)183-36-29; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 93-100

Partially ephemeral streams are complex objects that can still be used for water supply or irrigation of agricultural land. The problem of such streams is poorly studied, because the influence of various environmental factors complicates carrying out any experiments. Also it is not possible to make their full classification due to their very strong variability not only on a particular geographical belt, but also within separate areas of the river. All this undoubtedly complicates the task of the designers when designing the system. Creation of laboratory models, allowing us to evaluate the possibilities of a spring use for the purpose of water supply, is very promising. These watercourses have a large amount of suspended sediments, so it is not possible to use the standard scheme of water using of the coastal and fluvial water intake structures. It is proposed to organize the fight with the sediments in the flow chart of primary clarifiers, which will perform the function of settling suspensions, to facilitate the work of water treatment facilities. Also the creation of artificial prop is useful in order to achieve the required level of water in a watercourse for water organization. If under the bottom of the river there is underground water, and the permeability of the soil is good, it is possible to arrange the withdrawal of water through infiltration intakes, by setting the filter under the bottom of the watercourse with its connection to filter, from which the water will climb to submersible pumps. Additional filtration through the soil of the river bottom allows not using the scheme sumps, which significantly reduces the cost of epy incoming water treatment.

DOI: 10.22227/1997-0935.2015.2.93-100

References
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  2. Borovkov V.S., Markova I.M. Vnutriruslovye geoekologicheskie protsessy v vodotokakh na urbanizirovannykh territoriyakh [Under Channel Geo-ecological Processes in Streams in Urban Areas]. Ekologiya urbanizirovannykh territoriy [Ecology of Urbanized Territories]. 2006, no. 1, pp. 12—16. (In Russian)
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  4. Otstavnov A.A., Khar’kin V.A., Orlov V.A. K tekhniko-ekonomicheskomu obosnovaniyu bestransheynogo vosstanovleniya vetkhikh samotechnykh truboprovodov [To Technoeconomic Study of Trenchless Repair of the Old Gravity Pipelines]. Santekhnika [Sanitary Engineering]. 2004, no. 4, pp. 30—34. (In Russian)
  5. Isaev V.N. Sotsial’no-ekonomicheskie aspekty vodosnabzheniya i vodootvedeniya [Socio-economic Aspects of Water Supply and Sewerage]. Santekhnika [Sanitary Engineering]. 2007, no. 1, pp. 8—17. (In Russian)
  6. Orlov V.A. Puti obespecheniya sanitarnoy nadezhnosti vodoprovodnykh setey [Ways to Ensure the Sanitary Safety of Water Supply Networks]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no.1, pp. 181—187. (In Russian)
  7. Vitreshko I.A. Opredelenie poverkhnosti razdela pered vodopriemnikom v vodoeme [Definition of the Boundary Surface before Intake Conduit in the Pond]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 8, pp. 346—348. (In Russian)
  8. Westra J.V., Easter K.W., Olson K.D. Targeting Nonpoint Source Pollution Control: Phosphorus in the Minnesota River Basin. Journal of the American Water Resources Association. Middleburg, Apr. 2002, vol. 38, no. 2, pp. 493—505.
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  11. Orlov V.A. Gidravlicheskie issledovaniya i raschet samotechnykh truboprovodov iz razlichnykh materialov [Hydraulic Studies and Calculation of Gravity Pipelines Made of Different Materials]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Engineering]. 2008, no. 8, pp. 45—49. (In Russian)
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  24. Brodach M.M. Zelenoe vodosnabzhenie i vodootvedenie [Green Water Supply and Water Disposal]. Santekhnika [Sanitary Engineering]. 2009, no. 4, pp. 6—9. (In Russian)
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