Features of Contact Interaction between the Skidding System and Frozen Soils

Rudov, Sergey; Shapiro, V. Ya.; Grigoreva, Olga; Grigorev, Igor; Kunitskaya, O.

doi:10.17238/issn0536-1036.2019.1.106

Cited by 5 publications

(3 citation statements)

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“…A number of mathematical models of soil pressure distribution caused by tire have been proposed, which are based on the finite element model of soil compaction [10], smoothed-particle hydrodynamics [11], etc. Another important aspect in studying the environmental impacts of forest machinery on the soil is the interaction of skidding system with permafrost soils of cryolithic zone forests, which represent particularly susceptible forest ecosystems [12,13], and, according to [14], significantly subjected to commercial exploitation. Skidding process is the most environmentally harmful operation in wood harvesting [15,16], which may cause significant degradation of the soil at the interaction of the tractor`s skidding and the dragging timber bunch [17].…”

Section: Introductionmentioning

confidence: 99%

Modeling the effect of wheeled tractors and skidded timber bunches on forest soil compaction

Grigorev¹,

Kunickaya²,

Burgonutdinov³

et al. 2021

J Appl Eng Science

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An increasing demand for forest products incites a large number of log transportation operations, which may lead to negative consequences for the soil and the ecosystem as a whole. This paper is focused on establishing a mathematical model to estimate the soil deformation and compaction processes under tires of wheeled forest machines and individual components of the skidding system such as forwarder, limbs, butts, and tops of tree-lengths in high latitudes, permafrost soil and forests. The method applied is based on simulating the impact processes of elastic tires and the skidding system on the soil through a mathematical device for the measurement of the compaction parameters for different types of soil and the size of the shelterbelt. The effectiveness of the proposed models was evaluated according to experimental results. The influence of the rheological (elastic, viscous, and plastic) properties of soil were studied. The elasticity of tires and the running speed of forest machines can help to control the performance of forest machines. This can be done by reducing the pressure exerted on the soil and increasing the number of skidder passes 1.5-2-fold. Comparative analysis showed that the calculated data differ from the experimental ones by no more than 10%. The obtained results and the developed model will allow for a qualitative and quantitative assessment of technological impact on the soil during the projecting maps for logging operations.

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Section: Introductionmentioning

confidence: 99%

Modeling the effect of wheeled tractors and skidded timber bunches on forest soil compaction

Grigorev¹,

Kunickaya²,

Burgonutdinov³

et al. 2021

J Appl Eng Science

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show abstract

“…4 The integral indicator of soil compaction at a felling area is one of the most important factors for estimating the environmental efficiency of harvesting processes. 4,5 Another important aspect in studying the environmental impacts of forest machinery on the soil is the interaction of the skidding system with permafrost soils of cryolithic zone forests, which represent particularly susceptible forest ecosystems 6,7 and, according to Rudov et al, 8 are significantly subjected to commercial exploitation.…”

Section: Introductionmentioning

confidence: 99%

Modeling the effect of skidded timber bunches on forest soil compaction

Grigorev¹,

Kunickaya²,

Burgonutdinov

et al. 2020

Journal of Defense Modeling & Simulation

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An increasing demand for forest products incites a large number of log transportation operations, which may lead to negative consequences for the soil and the ecosystem as a whole. This paper presents a mathematical model to estimate the soil deformation and compaction processes under the influence of individual components of the skidding system, such as the forwarder, limbs, butts, and tops of tree-lengths in high latitudes, permafrost soil, and forests of the cryolithic zone. The effectiveness of the proposed model was evaluated according to experimental results. Comparative analysis showed that the calculated data differ from the experimental data by no more than 10%. The deformation of the soil by the bunch of tree-length logs occurs due to shearing processes. It has been established that the initial vertical stress exceeds the radial stress by 30–40%. The result of estimating the dependency of the shelterbelt width on the number of tree-length logs showed that the limit values for logs amount to 4–6 units for the mild, medium, and solid soil categories. The obtained results and the developed model will allow for a qualitative and quantitative assessment of the technological impact on the soil during the projecting of maps for logging operations.

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“…Another important aspect of research directed at environmental impacts of forest machinery on the soil in felling areas is the interaction with permafrost soils of cryolithic zone forests as particularly susceptible forest ecosystems [5,6] subjected to extensive commercial exploitation [7,8].…”

Section: Introductionmentioning

confidence: 99%

Assessment the effect of skidding techniques on the ecological efficiency of the skidding tractor

Grigorev¹,

Kunickaya²,

Burgonutdinov³

et al. 2020

Diagnostyka

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The study aims to build a model for the assessment of soil compaction processes, which take place under the influence of individual components of the skidding system such as a forwarder and a log being moved over the terrain. This aim is relevant in the context of forest preservation and ecological footprint-related issues. The model of a single log impact on the soil is based on establishing calculation formulas for determining soil compaction factors and shelterbelt size. The efficiency of the model was assessed on different soil categories and compared to experimental findings. The value of relative soil compaction within the trail boundary and the size rs of the maximum compaction area in the radial direction from the track, the width of the shelterbelt of undergrowth or cut-to-length root system were estimated based on the initial contact parameters.

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Features of Contact Interaction between the Skidding System and Frozen Soils

Cited by 5 publications

References 0 publications

Modeling the effect of wheeled tractors and skidded timber bunches on forest soil compaction

Modeling the effect of wheeled tractors and skidded timber bunches on forest soil compaction

Modeling the effect of skidded timber bunches on forest soil compaction

Assessment the effect of skidding techniques on the ecological efficiency of the skidding tractor

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