Metal pliable support developmentsin an ore file Yakovlevsky mine
About authors
- 1 — Saint Petersburg State Mining Institute (Technical University)
- 2 — Saint Petersburg State Mining Institute (Technical University)
- 3 — Saint Petersburg State Mining Institute (Technical University)
Abstract
Loading on support is defined by geomechanical, technological and geometrical parametres. At комбайновой technologies of carrying out of developments loading decreases in 1,5-1,6 times. Rigid dependence of size of loading on quality of filling закрепного spaces remains. Bearing ability of arches from СВП-27 and СВП-33 exceeds bearing ability of arches from СВП-22 accordingly on 33 and 76 %. Bearing ability of an arch with the account of plastic deformations of a steel increases on 32-42 % in comparison with elastic calculation.
Similar articles
Connection between lumpiness and block size оf mined rock from photographs using computer processing research
2011 A. P. Sannikova
Investigation of exfoliation height of roof rocks in mine workings within the zone of bearing pressure
2011 M. A. Rozenbaum, S. M. Chernyakhovskii, E. S. Savchenko
Geomichanical justification of entries stability at development of nearboard reserves of Кoashva quarry with a roof fall of a disturbed pit wall
2011 Yu. N. Ogorodnikov, A. D. Kuranov