Vynnykov, Yu. L. та Kharchenko, M. O. та Matyash, O. V. та Vovk, M. O. та Rybalko, M. (2024) UTILIZATION OF OVERBURDEN QUATERNARY ROCKS TO CREATE SOIL CUSHIONS FOR STRUCTURES. UNIVERSITAS Publishing. с. 219-229.

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English abstract

The article presents data on scientific and technical support of the construction of an embankment with an area of 1.9 million m2 and a thickness of 4-6 m for the facilities of an electrometallurgical plant in the city of Horishni Plavni, Poltava region of Ukraine. The paper presents the results of comprehensive laboratory and field studies of physical and mechanical parameters of compacted overburden of low-cohesion rocks, mainly sands, and their mixtures, and determines the influence of technological factors on the variation of these values. These rocks were formed as a result of the construction of quarries at the Yeristovo and Lavrykivka iron quartzite deposits. Practical possibilities of utilization of overburdened Quaternary low- cohesive rocks and their mixtures as a material for soil cushions of structures have been proved. Optimal methods of compaction of low-cohesive rocks using the vibration mode of rollers have been developed. The influence of technological parameters of compaction on the scatter of random variables of physical and mechanical characteristics of the soil cushion material was also determined. A certain inconsistency of the normative approach to quality control of compaction of overburden of low-cohesive rocks (standard laboratory test of Proctor) during the construction of pillows by modern mechanisms was established. The correct laws of distribution for random values of physical and mechanical properties of compacted low-cohesion overburden of quarries as a material of artificial foundations of structures have been substantiated by the tested methods of mathematical statistics.

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