Address: 17 Naberezhnaya Severnoy Dviny, Arkhangelsk 163002 Russian Federation. Northern (Arctic) Federal University named after M.V.Lomonosov. Office 1425

Phone / Fax: (818-2) 21-61-18



Aspects of Cross Bending Calculation for Winter Road Bases on Boggy Grounds

Версия для печати
Creative Commons License
These works are licensed under a Creative Commons Attribution 4.0 International License.

V.S. Morozov

Complete text of the article:

Download article (pdf, 0.7MB )






There is a significant part of natural resources such as forest, oil, gas, etc. in the vast northern territories of European Russia and Western Siberia. Invasion of these territories is difficult due to the poor development of the traffic network and a high degree of swampiness reaching 55–70 %. Therefore, special attention in the development of these regions is paid to winter roads. Observance of certain rules and construction technology allows realization of winter roads advantages. Putting them into operation in autumn is constrained by the presence of unfrozen road sections on water-logged boggy grounds and swamps. The right choice of road topping and technical and economic validity allow increasing lifetime of the winter roads on swamps according to the planned volumes of wood removal and improving them. It is possible to determine the smallest thickness of road pavement (layer of frozen peat) for the passage of vehicles and increase the duration of road life with the help of these measures and the use of special methods of structural analysis. It is shown that the stressstrain behavior of the winter road topping significantly differs from the soil body road topping. Dependence of mechanical properties of the frozen peat area on the temperature and change of its dimensions in the road base leads to the generation of various indicators of mechanical properties in discrete points of the area. A frozen peat layer on a thawed peat layer bends in block and in this sense it is similar to a thin flat plate. It was determined that epures of deflection and tension in the cross section of the road under the symmetrical load are also symmetrical, however, there is a roadway bowing under the asymmetrical load. Cross bending coefficient α is added into the calculations in order to take into account cross bending. Method of coefficient determination and an example of calculation are given.


V.S. Morozov, Doctor of Engineering Sciences, Professor


Northern (Arctic) Federal University named after M.V. Lomonosov, Naberezhnaya Severnoy Dviny, 22, Arkhangelsk, 163002, Russian Federation; e-mail:


tension, deformations, swamp, peat, structural analysis, cross bending

For citation

Morozov V.S. Aspects of Cross Bending Calculation for Winter Road Bases on Boggy Grounds. Lesnoy Zhurnal [Forestry Journal], 2018, no. 6, pp. 128–137. DOI: 10.17238/issn0536-1036.2018.6.128


1. Vayngol’ts A.I. Prognoz nesushchey sposobnosti dvukhsloynogo osnovaniya na osnove rezul’tatov analiza ego napryazhennogo sostoyaniya: avtoref. dis. … kand. tekhn. nauk [Forecast of Load-Carrying Capability of a Double-Layer Base on the Basis of Analysis Results of Its Tension: Cand. Tech. Sci. Abs.]. Volgograd, 2014. 24 p.
2. Mikeladze Sh.E. Nekotoryye zadachi stroitel’noy mekhaniki [Some Tasks of Structural Mechanics]. Moscow, Gostekhizdat Publ., 1958. 268 p. (In Russ.)
3. Morozov S.I. O raschete ustoychivosti rel’so-shpal’noy reshetki [Buckling Analysis of a Track Panel]. Lesnoy Zhurnal [Forestry Journal], 1974, no. 2, pp. 45–50.
4. Morozov S.I. O kriterii ustoychivosti zheleznodorozhnogo puti [Criteria of Stability of a Railway Track]. Tr. ALTI. Vyp. XXVIII: Issledovaniyа po mekhanizatsii lesorazrabotok i transportu lesa [Academic Papers of Arkhangelsk Forest Engineering Institute named after V.V. Kuibyshev. Iss. XXVIII: Research on Mechanization of Forest Exploitation and Forest Transportation]. Arkhangelsk, ALTI Publ., 1971, pp. 60–67.
5. Morozov V.S. Raschet i proyektirovaniye osnovaniy zimnikh dorog na bolotakh: ucheb. posobiye [Calculation and Design of Winter Road Bases on Wetlands: Educational Textbook]. Arkhangelsk, ASTU Publ., 1999. 235 p. (In Russ.)
6. Morozov V.S. Raschet na prochnost’ osnovaniy zimnikh dorog na zabolochennykh gruntakh [Strength Analysis of Winter Road Bases on Boggy Grounds], Lesnoy Zhurnal [Forestry Journal], 2012, no. 6, pp. 58–65.
7. Shaposhnikov N.A. Veroyatnostnyy raschet balki na neodnorodno deformiruemom osnovanii na deystviye dinamicheskoy nagruzki: avtoref. dis. ... kand. tekhn. nauk [Probability Calculation of a Beam on a Heterogeneous Deforming Base to Dynamic Load: Cand. Tech. Sci. Abs.]. Volgograd, 2013. 25 p.
8. Shakhun’yants G.M. Put’ i putevoye khozyaystvo: ucheb. posobiye [Railway Track and Track Facilities: Educational Textbook]. Moscow, Transzheldorizdat Publ., 1949. 632 p. (In Russ.)
9. Shakhun’yants G.M. Zheleznodorozhnyy put’: ucheb. dlya studentov i aspirantov vuzov zheleznodorozhnogo transporta [Railway Track: Textbook for Students and Postgraduate Students of Higher Educational Institutions of Railway Transport]. Moscow, Transport Publ., 1987. 479 p. (In Russ.)
10. Yankovskiy L.A. K raschetu krugloy plity na dvukhsloynom uprugom osnovanii [Calculation of a Round Plate on a Two-Layer Elastic Cushion]. Stroitel’naya mekhanika i raschet sooruzheniy [Structural Mechanics and Analysis of Constructions], 1963, no. 1, pp. 44–45.
11. Frejacques J.L. Construction de routes sur terrains compressibles. Revue generale des routes et des aerodromes, 1977, nо. 535, pp. 11–15, 85–86.
12. Lutz E. Dammbau ohne Beseitigung weicher Bodenschichten. Straßenbau – Techn., 1973, B. 26, N. 19, S. 32–34.

Received on June 21, 2018

Aspects of Cross Bending Calculation for Winter Road Bases on Boggy Grounds


Make a Submission


Lesnoy Zhurnal (Russian Forestry Journal) was awarded the "Seal of Recognition for Active Data Provider of the Year 2024"