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Lesnoy Zhurnal

The Effect of Floodwater on Slope Disturbance

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Yu.A. Makarova, A.Yu. Manukovskiy

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Truck haul roads can be considered as one of the most important element of the timber in-dustry complex, since the bulk of harvested wood is transported by road. To ensure the ef-fective operation of logging enterprises under modern conditions, the specialists should en-tirely construct truck haul roads, which is complicated by a number of reasons. The key problem is slope disturbance under the influence of unfavorable natural environment and climatic factors. In perspective regions rich in forest resources, this problem is expressed mainly in frequent floods and mudflows, which negatively affects the strength characteris-tics of forestry roads. Therefore, the design and construction of new ways of timber trans-porting in a waterlogged environment requires increased reliability of project structures and new alternative roadbed safety methods. Known methods and means for roadbed reinforcing in the form of various protective coatings at the fill depth of less than 1.5 m in flood condi-tions are not effective. The water flow damages the slopes at a speed of 0.8 m/s, which is proved by the mathematical modeling in the FlowVision environment. The goal of research is to develop a methodology for calculating the reaction of a slope to the liquid flow. The hydrodynamic drag force is one of the main reasons for the deformation of the surface of the slope protective structures under the waterlogging conditions. It increases with a speed of the water flow. The definition of this parameter for motor roads in regions with frequent floods allows taking into account, minimizing the degree of road havoc and selecting a more effective design of slope protection.


Yu.A. Makarova, Postgraduate Student
A.Yu. Manukovskiy, Doctor of Engineering Sciences, Professor

Authors job

Voronezh State University of Forestry and Technologies named after G.F. Morozov, ul. Timiryazeva, 8, Voronezh, 394087, Russian Federation; e-mail:


waterlogging, road havoe, flood, slope, water flow, hydrodynamic resistance, equation

For citation

Makarova Yu.A., Manukovskiy A.Yu. The Effect of Floodwater on Slope Dis-turbance. Lesnoy zhurnal [Forestry journal], 2018, no. 2, pp. 70–76. DOI: 10.17238/issn0536-1036.2018.2.70


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Received on December 15, 2017

The Effect of Floodwater on Slope Disturbance


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