Operational ability of road transport structures in complex hydro geological conditions

Energy Management of Municipal Transportation Facilities and Transport - EMMFT 2017

Lukina, Valentina^1 ; Lukin, Aleksei^1 ; Lukinov, Vitaly^2 ; Snigireva, Galina^3

Northern (Arctic) Federal University, Severnaya Dvina Emb. 17, Arkhangelsk

163002, Russia^1

Moscow State University of Civil Engineering, Yaroslavskoe shosse, 26, Moscow

129337, Russia^2

Vyatka State University, Moskovskaya str., 36, Kirov

610000, Russia^3

关键词: Climatic conditions;    Frost penetrations;    Geological conditions;    Initial and boundary conditions;    Laws of thermodynamics;    Migration process;    Numerical inversion of laplace transformations;    Operational ability;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/90/1/012126/pdf
DOI  :  10.1088/1755-1315/90/1/012126

来源: IOP

【 摘 要 】

Working capacity of traffic facilities in the northern European part of Russia depends on difficult natural climatic conditions. It means deep frost penetration and high ground-water level. Both two factors considerably impact on the amount of frost boil of soils in the roadbed. Because of the analysis of a water-and-thermal regime of soil it is possible to detect it's characteristic, to adjust initial and boundary conditions in the performance of theoretical tasks based on laws of thermodynamics for description of migration process of heat and damp in the road bed. A solution was found with a numerical inversion of Laplace transformation. Realization of that task makes possible to forecast dampness to the end of winter period and to determine the amount of frost boil of soils. To avoid subgrade deterioration in this period the temporary axle load limitations on public roads are imposed.