Panteleienko, V. I. та Karpushyn, S. O. (2022) MACHINES AND EQUIPMENT FOR THE ARRANGEMENT OF RECESS FOR FOUNDATIONS OF QUICKLY INSTALLED TECHNOLOGICAL MINING FACILITIES WITHOUT DIGGING. UNIVERSITAS Publishing. с. 532-563.

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English abstract

In construction practice, for the construction of foundations without excavation and formwork, the methods of ramming and stamping of the soil base can be successfully used. Under ramming means the formation of a depression by directional dropping from a certain height of the rammer, which has the shape of a future depression, and under stamping, the formation of a depression by driving a template stamp to the required depth and then removing it from the ground. The resulting recess is filled with concrete directly or a prefabricated element is installed in it. The use of these methods makes it possible to reduce (by 3...6 times) the volume of earthworks in comparison with the traditional methods of construction of foundation pits. The presence of a compacted zone at the base and around the sidewalls of the recess can significantly reduce the size of the foundations and reduce the consumption of concrete by 1,2...2 times, and reinforcement - by 1,4...4 times. To increase the bearing capacity of the upper soil layers and in order to eliminate the effect of frost heaving of the soil into the walls and bottom of the deepening, waste from the mine, mining and processing industry is rammed in separate portions in the form of crushed stone, sand and gravel mixture, coarse sand, screening and other materials. The energy and number of strokes of the stamp are determined by the required depth of the deepening and the type of soil. The questions of the rational shape and size of dies, technical and technological parameters of machines and equipment for the installation of recesses for the foundations of rapidly erected technological mine structures, taking into account the technogenic local soil bases and "waste" rocks, remain open. Below is a description and analysis of methods for constructing recesses for foundations without excavation, the results of research and the creation of highly efficient working equipment are given. Recommendations are given on the choice of the parameters of the working equipment for the formation of depressions in the base with a seal.

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