Authors: A.S. Liskovets, V.Р. Tatsienko, V.A. Gogolin, I.A. Ermakova

Title of the article: Engineering method for calculating pressure at the support and displacement of crown with filling of the space behind the support

Year: 2020, Issue: 2, Pages: 97-102

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

Index UDK: 622.831

DOI: 10.26730/1999-4125-2020-2-97-102

Abstract: The fire resistance of workings driven in coal and the stability of workings driven in difficult mining and geological conditions are necessary for the intensification of mining operations at the mines of SUEK-Kuzbass JSC.
The applied methods of workings development and support cause the formation of space behind the support, the width of which reaches 0,2÷0,3 m. Filling of the space between the support and development working allows to increase the load-bearing capacity of the support and completely isolate the development working. The lack of available methods for calculating the parameters of the arched support with filling of the space between the support and development working makes it difficult to use this technology.
The article provides an engineering method and an example of calculating the pressure on the support and the displacements of support crown with filling of the space behind the support. The calculation method takes into account the interaction of the blocks of the «support- filling layer - rock mass system». The strength state of the support is checked by comparing the calculated load and the bearing capacity of the support.

Key words: support filling layer pressure on support displacement of the support crown bearing capacity of the support

Receiving date: 25.03.2020

Publication date: 24.07.2020

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