Modeling the operation of road pavement during the thawing of soil in the subgrade of highways

Isakov, A. L.; Razuvaev, Denis; Gudkova, Irina; Chakhlov, Michael

doi:10.1051/matecconf/201823905001

Cited by 6 publications

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References 1 publication

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“…The strength of a road pavement is assessed by the deflection value l [11] under the load of the round stamp, the diameter of which is equal to the diameter of the wheel imprint of the estimated car (0.33 m) with the load on the wheel of 50 kN.…”

Section: Model Descriptionmentioning

confidence: 99%

“…To solve this problem, it is necessary to perform the modeling of operation of the road construction in the most unfavorable period of the year -during the thawing of soil in the subgrade of highways [1,2]. The purpose of this work is to build a model of road pavement deformation under a rigid stamp, taking into account the layer-by-layer thawing of soil in the subgrade of highways, which includes the following stages:…”

Section: Introductionmentioning

confidence: 99%

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Modeling the operation of road pavement during the thawing of soil in the subgrade of highways

et al. 2018

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The solution for modeling the operation of road pavement during the thawing of soil in the subgrade of highways is proposed in this work. A model for layer-by-layer thawing of soil in the subgrade of highways was developed and illustrated, including the stage of modeling the change in the strength of the road structure during the thawing of soil, determining the dependence of the structural strength on the depth of soil thawing, thermophysical modeling of the process of freezing/thawing of soil in the subgrade using a software complex “Freeze-1” developed by the SSTU with determination of the dependence of the structural strength on time.

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Section: Model Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling the operation of road pavement during the thawing of soil in the subgrade of highways

et al. 2018

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Barriers and Limitations of Innovative Road Projects Aimed at Improving Energy Efficiency

Provotorov

Gasilov

Mohammed

et al. 2020

International Scientific Conference Energy Management of Municipal Facilities and Sustainable Energy Technologies EMMFT 2019

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Selection of Construction Materials for a Thermal Insulation Layer of a Road

Galkin,

Plotnikov,

Pankov

2024

Lecture Notes in Civil Engineering

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Safety of the roads in the permafrost region is largely determined by their thermal regime. The aim of the present work was to discover a function to determine the thermal conductivity coefficient of materials used to construct a thermal insulation layer of a road to prevent foundation soils from thawing over a permitted thawing depth. Two cases were surveyed: when the natural temperature of the soil is equal to ice melting temperature and when it is not equal to ice melting temperature. Engineering formulas permitting to quickly select the required thermal resistance property of an insulation material based on the known Biot number were derived. An expedient regularity is observed: the thermal resistance of the thermal insulation layer is roughly proportional to the dimensionless thawing depth. Correspondingly, when selecting the construction materials for a thermal insulation layer it can be considered that the increase in permissible thawing depth increases proportionally to the increase of the thermal conductivity coefficient of the insulation material. Considering that the physical and mechanical properties of the soil are not constant along the road length, the thermal resistance of the thermal insulation layer should be determined for individual sections of the road rather than for the entire route. Accordingly, the construction materials can also vary depending on the selected solutions for the road construction.

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Modeling the operation of road pavement during the thawing of soil in the subgrade of highways

Cited by 6 publications

References 1 publication

Modeling the operation of road pavement during the thawing of soil in the subgrade of highways

Modeling the operation of road pavement during the thawing of soil in the subgrade of highways

Barriers and Limitations of Innovative Road Projects Aimed at Improving Energy Efficiency

Selection of Construction Materials for a Thermal Insulation Layer of a Road

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