Error
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering

HYDRAULICS. ENGINEERING HYDROLOGY. HYDRAULIC ENGINEERING

EROSION OF MODEL RIVER BEDS COMPOSED OF SPHERICAL PARTICLES

Vestnik MGSU 6/2013
  • Borovkov Valeriy Stepanovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Hydraulics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; mgsu-hydraulic@ yandex.ru; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Volynov Mikhail Anatol’evich - A.N. Kostyakov All-Russian Research Institute of Hydraulic Engineering and Land Reclamation (VNIIGiM) Candidate of Technical Sciences, Associate Professor, Chair, Department of Water Resources Management, A.N. Kostyakov All-Russian Research Institute of Hydraulic Engineering and Land Reclamation (VNIIGiM), 127550, 44 Bol’shaya Akademicheskaya St., Moscow, 127550 Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 123-160

Erosion of a model river bed composed of spherical particles is analyzed in the article. The authors provide their summarized analysis of forces applied by the water flow onto particles of the upper layer of the model bottom soil composed of spherical particles. The authors have proven that the force producing the hydrostatic surcharge is determined by the dimensions of areas of tight particle-to-particle contacts, where a thin film of unfree water is incapable of transmitting hydrostatic pressure. This force must be considered if the particle size is below 0.03 mm. The authors have identified that the principal force responsible for the elevation of particles is the lifting force caused by the flow asymmetry in the upper soil layer. If the velocity demonstrated on the tops of particles of the upper soil layer is considered as the characteristic velocity, criterial condition of elevation of particles by the water flow is obtained as the ratio of this velocity to the hydraulic size of particles which is equal to one. The authors provide their explanation backing the above conclusion.

DOI: 10.22227/1997-0935.2013.6.123-160

References
  1. Regazzoni P.L., Marot D. Investigation of Interface Erosion Rate by Jet Erosion Test and Statistical Analysis. European Journal of Environmental and Civil Engineering. 2011, vol. 15, no. 8, pp. 1167—1185.
  2. Salehi Sadaghiani M.R., Witt K.J. Experimental Identification of Mobile Particles in Suffusible Non-cohesive Soils. European Journal of Environmental and Civil Engineering. 2011, vol. 15, no. 8, pp. 1155—1165.
  3. Dey A.K., Tsujimoto T., Kitamura T. Experimental Investigations on Different Modes of Headcut Migration. Journal of Hydraulic Research. 2007, vol. 45, pp. 333—346.
  4. Shlikhting G. Teoriya pogranichnogo sloya [Boundary Layer Theory]. Moscow, Nauka Publ., 1969, 742 p.
  5. Shterenlikht D.V. Gidravlika [Hydraulics]. Moscow, Kolos Publ., 2004, 655 p.
  6. Deryagin B.V., Krotova N.A., Smilga V.P. Adgeziya tverdykh tel [Adhesion of Solid Bodies]. Moscow, Nauka Publ., 1973, 280 p.
  7. Davis M., K?hler H.J., Koenders M.A. Unsaturated Subsoil Erosion Protection in Turbulent Flow Conditions. Journal of Hydraulic Research. 2006, vol. 44, no. 3, pp. 41—43.
  8. Lelyavskiy S. Vvedenie v rechnuyu gidravliku [Introduction into River Hydraulics]. Leningrad, Gidrometeoizdat Publ., 1961, 228 p.
  9. Mikhaylova N.A. Perenos tverdykh chastits turbulentnymi potokami vody [Transfer of Solid Particles by Turbulent Water Flows]. Leningrad, Gidrometeoizdat Publ., 1966, 232 p.
  10. Deryagin B.V., Abrikosova I.I., Lifshits E.M. Molekulyarnoe prityazhenie kondensirovannykh tel [Molecular Attraction of Condensed Bodies]. Sb. fizich. nauk [Collection of Physical Sciences]. 1958, no. 64, pp. 493—528.
  11. Bobkov V.F., Gerburt-Geybovich A.V. Osnovy gruntovedeniya i mekhaniki gruntov [Fundamentals of Pedology and Soil Mechanics]. Moscow, Vysshaya shkola publ., 1964, 365 p.
  12. Kiselev P.G. Gidravlika. Osnovy mekhaniki zhidkosti. [Hydraulics. Fundamentals of Fluid Mechanics]. Moscow, Energiya Publ., 1980, 360 p.
  13. Mirtskhulava Ts.E. Razmyv rusel i metodika otsenki ikh ustoychivosti [Erosion of River Beds and Methods of Assessment of Their Stability]. Moscow, Kolos Publ., 1967, 177 p.
  14. Volynov M.A. Propusknaya sposobnost’ samoformiruyushchikhsya rechnykh rusel [Capacity of Self-forming River Beds]. Prirodoobustroystvo [Nature Management]. 2011, no. 5, pp. 66—71.
  15. Baykov V.N., Borovkov V.S., Volynov M.A., Pisarev D.V. Lokal’noe kinematicheskoe podobie techeniya i raspredelenie skorostey v rechnykh potokakh [Local Kinematic Similarity of the Current and Velocity Distribution in River Flows]. Inzhenerno-stroitel’nyy zhurnal [Civil Engineering Journal]. 2012, no. 6 (32), pp. 12—19.
  16. Alkaeva A.B., Donenberg V.M., Kvasova I.T. Usloviya predel’noy ustoychivosti chastits nesvyaznogo grunta na dne turbulentnogo potoka [Conditions of the Limit Stability of Particles of Non-cohesive Soils on the Bottom of a Turbulent Flow]. Izvestiya VNIIG im. B.E. Vedeneeva [Proceedings of All-Soviet Research Institute of Hydraulics named after B.E. Vedeneev]. 1978, vol.126, pp. 22—29.
  17. Grishin N.N. Mekhanika pridonnykh nanosov [Mechanics of Natural Drifts]. Moscow, Nauka Publ., 1982, 160 p.
  18. Grishanin K.V. Dinamika ruslovykh potokov [Dynamics of Bed Flows]. Leningrad, Gidrometeoizdat Publ., 1969, 427 p.
  19. Knoroz V.S. Nerazmyvayushchaya skorost’ dlya nesvyaznykh gruntov i faktory ee opredelyayushchie [Non-erosive Velocity for Non-cohesive Soils and Its Determinant Factors]. Izvestiya VNIIG im. B.E. Vedeneeva [Proceedings of All-Soviet Research Institute of Hydraulics named after B.E. Vedeneev]. 1958, vol. 59, pp. 62—81.

Download

Results 1 - 1 of 1