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ИССЛЕДОВАНИЕ ТЕХНОЛОГИЧЕСКИХ ПАРАМЕТРОВ ПРИ КРЕПЛЕНИИ ГОРНЫХ ВЫРАБОТОК
ИССЛЕДОВАНИЕ ТЕХНОЛОГИЧЕСКИХ ПАРАМЕТРОВ ПРИ КРЕПЛЕНИИ ГОРНЫХ ВЫРАБОТОК
- Source :
-
Vestnik KazUTB . 2023, Vol. 4 Issue 21, p115-123. 9p. - Publication Year :
- 2023
-
Abstract
- Establishing the degree and numerical parameters of fracturing of the host rock massif in the contour of the roof of the mine opening allows us to establish the technological parameters of the fastening. Monitoring and forecasting the assessment of the stability of mine workings in the mines of the Karaganda coal basin will allow us to determine the patterns of manifestations of rock pressure in workings depending on mining and geological factors and mining operating conditions based on computer modeling of geomechanical processes in the host mixed coal rock mass around the workings under study. It is necessary to create technological schemes for conducting mining operations based on modeling of zonal disintegration of rock masses and passports for fastening mine workings for various mining, geological and mining technical conditions of coal mine development in order to reduce the cost of operating mine workings in compliance with the standard speed of their implementation for preparing the front of the mining excavation. The use of arched metal-frame support does not allow increasing the pace of mining and the productivity of miners, reducing the metal intensity of the support and its cost, and also applying comprehensive mechanization of work to maintain mine workings. Depending on the type of polymer composition, the adhesion of the fastening chemical composition to sandstone is 0.03 - 0.15 MPa and increases from a smooth rod to a threaded one and is maximum for an anchor rod with a variable profile. [ABSTRACT FROM AUTHOR]
Details
- Language :
- Russian
- ISSN :
- 27084132
- Volume :
- 4
- Issue :
- 21
- Database :
- Academic Search Index
- Journal :
- Vestnik KazUTB
- Publication Type :
- Academic Journal
- Accession number :
- 175381106
- Full Text :
- https://doi.org/10.58805/kazutb.v.4.21-205