The influence of the calculated temperature of the asphalt concrete coating layers on the shear stability of the subgrade

Автор(и)

  • Yevhen Dorozhko Kharkiv National Automobile and Highway University., Ukraine

DOI:

https://doi.org/10.30977/BUL.2219-5548.2019.86.2.83

Ключові слова:

Pavement, load, stress, temperature, strength, elastic modulus.

Анотація

Problem The strength of the pavement depends significantly on the climatic conditions, which must be taken into account both in the design process and at the stage of calculating the pavement and the working layer of the subgrade. Incorrect selection of design temperatures can lead to a mismatch between the design and actual operating conditions of the structure. Therefore, it is advisable to determine the effect of the calculated temperature of the asphalt concrete coating layers on the shear resistance of the subgrade. Goal. The goal is analysis of the effect of the calculated temperature of the asphalt concrete coating layers on the shear stability of the subgrade. Methodology. To achieve this goal, the finite element method was used to model the stress-strain state of the pavement structure from the action of the transport load. Results. An increase in the calculated temperature of asphalt concrete layers in the temperature range from 20 ºС to 35 ºС (the temperature range of the coating layers when calculating the construction of pavement according to the criterion of shear resistance of subgrade) for every 5 ºС leads to an increase in the main stresses (σ1, σ2, σ3) in soil subgrade by 5 %. Originality. For the first time, an analysis is made of the influence of the calculated temperature of asphalt concrete coating layers on the stress-strain state and shear stability of the working layer of the soil of the subgrade. It was established that an increase in the design temperature for each 1 ºС leads to an increase in active shear stresses in the soil by 1 % and, consequently, to a 1 % decrease in the safety factor of the subgrade. Practical value. The results of this study were taken into account when developing the Handbook of climatic characteristics and climatic zoning of the territory of Ukraine for calculating non-rigid pavement.

Біографія автора

Yevhen Dorozhko, Kharkiv National Automobile and Highway University.

PhD, Associate Professor Department of Highway Design, Geodesy and Land Management.

Посилання

Hameliak I.P., Koretskyi A.S., Koretskyi S.S. (2013). Pro neobkhidnist budivnytstva v Ukraini avtomobilnykh dorih iz tsementobetonnym pokryttiam [About the need for construction of cement roads in Ukraine by roads]. Avtoshliakhovyk Ukrainy – Avtoshliakhovyk Ukrainy, 5, 24–31. [in Ukrainian].

Hussan S., Kamal M.A., Khan M.B., Irfan M., Hafeez I. (2013). Determining the Contribution of Different Structural Layers of Asphalt Pavement System to Rutting Using Transverse Profile Analysis. American Journal of Civil Engineering and Architecture, 1 (6), 174–180.

GBN V.2.3-37641918-559:2019 Avtomobilni dorogi. Dorozhnij odyag nezhorstkij. Proektuvannya [Highways. Non-rigid pavement. Designing] [in Ukrainian].

Volkov S.S., Vasiliev A.S., Aizikovich S.M., Seleznev N.M., Leontieva A.V. (2016). Stress-strain state of an elastic soft functionally-graded coating subjected to indentation by a spherical punch. PNRPU Mechanics Bulletin, 4, 20–34.

Onischenko A., Aksenov S., Nevynhlovskyy V. (2016). Numerical Simulation of Stress-Strain State of Asphalt Concrete Pavement on the Car-riageway of the South Bridge in Kiev. Procedia Engineering, 134, 322–329.

Pisarenko G.S. (1976). Deformirovanie i prochnost’ materialov pri slozhnom napryazhennom sostoyanii [Deformation and strength of materials under complex stress]. Kyiv, 415. [in Ukrainian].

Dorozhko Y., Arsenieva N., Sarkisian H., Synovets O. (2019). Determining the most dangerous loading application point for asphalt-concrete layers on a rigid base. Eastern-European Journal of Enterprise Technologies, 3/7 (99), 36–43.

Dorozhko Ye.V. (2015). Vrakhuvannia sumisnoi diyi zovnishnoho navantazhennia ta temperatury pry rozrakhunkakh tonkykh asfaltobetonnykh shariv na zhorstkiy osnovi [Account the simultaneous action of external loads and temperature in the calculation of thin asphalt layers on a rigid base]. Naukovyi visnyk budivnytstva – Scientific Bulletin of Civil Engineering, 4, 132–136. [in Ukrainian].

Merzlikin A.Е. Kapustnikov N.V. (2010). Pogreshnosti, voznikayuschie pri raschete dorozhnyh odezhd s pomosch’yu metoda konechnyh elementov [Errors that occur when calculating the travel clothes using the finite element method]. Stroitel’nye materialy – Building materials, 10, 26–29. [in Russian].

DBN V.2.3-4:2015 Avtomobilni dorogi. Chastina

I. Proektuvannya. Chastina II. Budivnictvo [Highways. Part I. Designing. Part II. Construc-tion]. [in Ukrainian].

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