To the question of determining the soil quality index in road construction

Автор(и)

  • Lev Perovych Lviv Polytechnic National University, Ukraine
  • Lesia Perovych Ivano-Frankivsk National Technical University of Oil and Gas, Ukraine
  • Tania Martyniuk Lviv Polytechnic National University, Ukraine
  • Roman Peresoliak Uzghhorod national university, Ukraine

DOI:

https://doi.org/10.30977/BUL.2219-5548.2019.86.2.49

Ключові слова:

Soil, construction, value, parameters, methods, assessment.

Анотація

Problems. Assessment of quality of urban soil is of great importance in the socio-economic stability and development of each territory in the design and construction of highways. This is one of the important factors of material and financial costs and security of construction and operation of the engineering and transport network. Goal. This study is devoted to the method of solving an important socio-economic problem - determining the index of urban quality of soil in the construction of roads. For these purposes, the choice of the optimal function of determining the index of urban quality of soils is investigated; the factors that shape it and the criterion of consistency of the final results. Method. The research uses the theory of weighted additive functions, methods of statistical analysis and mathematical logic. Results. The classification of factors that form the index of urban quality of soils and methods of processing the database, as well as the criteria of consistency of indices based on the results of field and laboratory studies have been developed. It is found that to determine the soil quality graduablity index, it is most appropriate to use an additive weighted function that includes a number of important factors. The main groups of factors are identified: relative deformation of subsidence, moisture, swelling and freezing capacity during freezing. Using a five-point scale to determine the index is suggested. On the basis of the point estimates of each group of factors, it is possible to determine the impact of each group on the index, as well as, using the coefficient of concordance, to determine the consistency criterion of the values of urban quality indexes of soils obtained in different soil samples. The newness of novelty. A model of soil quality index determination and their evaluation is developed. Based on the known methods of soil quality assessment, the authors propose a methodological approach that allows not only the determination of the index of urban quality of soils, but also the influence of individual factors on the index value. Practical implementation. This can be used by experts in the field of motorway design to develop proposals and recommendations for public authorities and local self-government in solving construction issues, which will contribute to the economics of material costs and the safety of operation of road transport networks.

Біографії авторів

Lev Perovych, Lviv Polytechnic National University

Professor, Department of Cadastre of Territories

Lesia Perovych, Ivano-Frankivsk National Technical University of Oil and Gas

PhD., Associate Prof.

Tania Martyniuk, Lviv Polytechnic National University

Department of Cadastre of Territories

Roman Peresoliak, Uzghhorod national university

Land management and cadastre department

Посилання

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Mandual U.K., Ramachandran K., Sharma K., Satyam B., Venkanna K., et al. (2011). Assessing Soil Quality in a Semiarid Tropical Watershed Using a Geographic Information System. Soil Science Society of America Journal 75: 1144–1160.

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