Authors: D.N. Degtyarev

Title of the article: Vertical and horizontal movements of the undermined earth surface by the KGRP complex

Year: 2019, Issue: 5, Pages: 84-91

Branch of knowledge: 25.00.22 Geotechnology (underground, open and construction)s

Index UDK: 622. 834

DOI: 10.26730/1999-4125-2019-5-84-91

Abstract: One of the main requirements to the subsoil user according to The law of the Russian Federation «on subsoil» is the completeness of extraction of minerals. Coal mining at Kuzbass opencasts is associated with significant losses of off-balance off-balance reserves concentrated between the marginal technical and licensed boundaries. Extraction of port coal reserves allows to reduce mineral losses, increase the life of the mine and get additional profit. In order to ensure maximum completeness of the extraction of reserves at the established boundaries after the completion of the formation to the final boundary of the open-pit mining, it is planned to put into operation a complex of deep development of formations (KGRP), which has received the greatest application in coal mines of Kuzbass. Despite the more than ten-year period of its application, the geomechanics of the undermined massif and the earth's surface have been little studied. The main regulatory document governing the protection of buildings, structures, communications and natural objects from the harmful effects of mining during the development of coal seams does not have a methodology for calculating the expected displacements and deformations of the undermined earth surface by the complex KGRP. On the basis of earlier studies and new results of systematic instrumental observations of the displacements of the earth's surface undermined by the complex KGRP, regularities of subsidence and horizontal displacements are revealed, empirical relationships are established, and methodological provisions for establishing the distribution functions of subsidence are given. The angular parameters of the displacement trough are established, the formulas for calculating the expected maximum horizontal displacement and the size of the trough are mould.

Key words: Deep development of complex layers part of the array instrumental observations displacement trough analysis patterns guidelines for calculating provisions

Receiving date: 30.08.2019

Publication date: 31.12.2019

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