![]() Address: Naberezhnaya Severnoy Dviny, 17, Arkhangelsk, 163002, Russian Federation, Northern (Arctic) Federal University named after M.V.Lomonosov, office 1425
Phone: +7 (8182) 21-61-18 Lesnoy Zhurnal |
V.Ya. Shapiro, O.I. Grigor’eva, I.V. Grigor’ev, M.F. Grigor’ev Complete text of the article:Download article (pdf, 0.5MB )UDС630*432.31DOI:10.17238/issn0536-1036.2018.1.61AbstractForest fire fighter is an urgent problem of forestry and forest land tenants. Most of the emerging forest fires are low, which can be brought under control by filling the fire edge with soil. Forest soils differ from soils of agricultural lands and construction industry. They have a pronounced layered structure of several organic and one or several mineral layers with characteristic physical and mechanical properties. This feature of soil should be taken into account in the design of drives and working elements of technological equipment of soil-throwers that are used to extinguish forest fires. When using combined soil-thrower constructions, the top litter layer is removed with flat knives located on the rotor. Then the main mass of soil necessary for the effective throwing in the direction of the forest fire edge is destroyed and loosened by spherical knives. One of the main problems of a spherical knife and soil mass interaction is the determination of the approach velocity of the working element to the ground surface. When soil-thrower is moving, soil particles possessing certain physical and mechanical properties contact with working elements, and resistance forces to the movement of the machine arise, which reduces its productivity. The low-speed mode is used for the effective work of the soil-thrower working elements when milling the viscous and close to the yielding point of soil layers. The authors have developed a mathematical model that allows at the stage of theoretical studies and engineering solutions evaluating the results of effective operation of spherical knives when milling a soil layer with combined soil-throwers to extinguish forest fires, taking into account various factors and conditions for the implementation of technological processes.AuthorsV.Ya. Shapiro1, Doctor of Engineering Sciences, ProfessorO.I. Grigor’eva1, Candidate of Agricultural Sciences, Associate Professor I.V. Grigor’ev2, Doctor of Engineering Sciences, Professor M.F. Grigor’ev2, Senior Lecturer Affiliation1Saint Petersburg State Forest Technical University under name of S.M. Kirov, Institutskiy per., 5, Saint Petersburg, 194021, Russian Federation; e-mail: tlzp@inbox.ru2Yakut State Agricultural Academy, Sergelyakhskoe sh., Tretiy kilometr, 3, Yakutsk, 677007, Republic of Sakha, Russian Federation; e-mail: silver73@inbox.ru Keywordsforest fire, forest fire-fighting method, soil-thrower, contact fracture mechanicsFor citationShapiro V.Ya., Grigor’eva O.I., Grigor’ev I.V., Grigor’ev M.F. Theoretical Study of the Soil Mass Destruction Process by Spherical Knives when Using Combined Forest Fire-Fighting Soil-Thrower Constructions. Lesnoy zhurnal [Forestry journal], 2018, no. 1, pp. 61–69. DOI: 10.17238/issn0536-1036.2018.1.61References1. Gazizov A.M., Shapiro V.Ya., Grigor'ev I.V., Gumerova O.M. Modelirovanie protsessa razrusheniya kory pri okorke rezaniem [Modelling Process of Destruction of a Bark at Cutting]. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii (Izvestia SPbLTA) [News of the Saint Petersburg State Forest Technical Academy], 2010, no. 193, pp. 211–221.2. Gnusov M.A. Obosnovanie parametrov kombinirovannykh rabochikh organov gruntometa dlya prokladki mineralizovannykh polos v lesu: avtoref. dis. ... kand. tekhn. nauk [Substantiation of Parameters of the Combined Working Elements of a Soil-Thrower for the Forest Fire Barriers: Cand. Eng. Sci. Diss. Abs.]. Voronezh, 2014. 16 p. 3. Morozov E.M., Zernin M.V. Kontaktnye zadachi mekhaniki razrusheniya [Contact Problems of Fracture Mechanics]. Moscow, LIBROKOM Publ., 2010. 544 p. (In Russ.) 4. Mosinets V.N., Abramov A.V. Razrushenie treshchinovatykh i narushennykh gornykh porod [Destruction of Fractured and Disturbed Rocks]. Moscow, Nedra Publ., 1982. 248 p. (In Russ.) 5. Orlovskiy S.N. Opredelenie energeticheskikh i dinamicheskikh parametrov traktorov, rezhimov rezaniya aktivnykh rabochikh organov mashinno-traktornykh agregatov [Determination of Energy and Dynamic Parameters of Tractors, Cutting Modes of Active Working Elements of Machine and Tractor Units]. Krasnoyarsk, Krasnoyarsk SAU Publ., 2011. 376 p. (In Russ.) 6. Bartenev I.M., Drapalyuk M.V., Gnusov M.A. Pozharnyy gruntomet-polosoprokladyvatel' [Fire-Fighting Soil-Thrower-Fire-Break Maker]. Patent RF, no. 2496540, 2013. 7. Chukichev A.N. Tekhnologicheskie i teoreticheskie osnovy frezo-metatel'nykh mashin dlya tusheniya lesnykh pozharov gruntom: avtoref. dis. ... d-ra tekhn. nauk [Technological and Theoretical Foundations of Throwers for Forest Fires Extinction with Soil: Dr. Eng. Sci. Diss. Abs.]. Saint Petersburg, 1995. 40 p. 8. Shapiro V.Ya., Grigor'ev I.V., Zhukova A.I. Vliyanie sdvigovykh deformatsiy na protsess tsiklicheskogo uplotneniya pochvy [Influence of Shear Deformations on the Process of Cyclic Soil Compaction]. Estestvennye i tekhnicheskie nauki [Natural and Technical Sciences], 2006, no. 1, pp. 174–180. 9. Shapiro V.Ya., Grigor'ev I.V., Zhukova A.I. Osobennosti dinamicheskogo uplotneniya pochvy pri ee tsiklicheskom nagruzhenii [Features of the Soil Dynamic Compaction during Its Cyclic Loading]. Aktual'nye problemy sovremennoy nauki, 2006, no. 3, pp. 301–309. 10. Shapiro V.Ya., Grigor'ev I.V., Zhukova A.I. Otsenka protsessov deformirovaniya pochvy pri tsiklicheskom uplotnenii [Assessment of Soil Deformation Processes under Cyclic Compaction]. Lesnoy zhurnal [Forestry journal], 2008, no. 4, pp. 44–51. 11. Shapiro V.Ya., Grigor'ev I.V., LepilinD.V., Zhukova A.I. Modelirovanie uplotneniya pochvogrunta v bokovykh polosakh trelevochnogo voloka s uchetom izmenchivosti trassy dvizheniya [Modeling of Soil Consolidation Consistent with Trail Tractors Route Change]. Uchenye zapiski Petrozavodskogo gosudarstvennogo universiteta. Seriya: Estestvennye i tekhnicheskie nauki [Proceedings of Petrozavodsk State University. Ser.: Natural and Engineering Sciences], 2010, no. 6(111), pp. 61–64. 12. Melekhov I.S. Burned Forest Area Type Classification. Fire in Ecosystems of Boreal Eurasia. Ed. by J.G. Goldammer, V. Furyaev. Dordrecht, Netherlands, Springer Publ., 1996, pp. 326‒330. 13. Valendik E.N. Temporal and Spatial Distribution of Forest Fires in Siberia. Fire in Ecosystems of Boreal Eurasia. Ed. by J.G. Goldammer, V. Furyaev. Dordrecht, Netherlands, Springer Publ., 1996, pp. 129–138. 14. Warcup J.H. Effect of Fire on the Soil Microflora and Other Non-Vascular Plants. Fire and the Australian Biota. Ed. by A.M. Gill, R.H. Groves, I.R. Noble. Canberra, Aust. Acad. Sci. Publ., 1981, pp. 203–214. Received on September 27, 2017 Theoretical Study of the Soil Mass Destruction Process by Spherical Knives when Using Combined Forest Fire-Fighting Soil-Thrower Constructions |
Make a Submission
Lesnoy Zhurnal (Russian Forestry Journal) was awarded the "Seal of Recognition for Active Data Provider of the Year 2024" INDEXED IN:
|
![]() |
|
![]() |
![]() |
![]() |
|
![]() |
|
![]() |
|
![]() |
|
![]() |
![]() |
![]() |
|
![]() |
![]() |
![]() |
|
![]() |
![]() |
![]() |
|
![]() |
![]() |
![]() |
|
![]() |
|
![]() |
![]() |
![]() |
![](/img/transparent.gif)