Deep open pit walls design using rock mass stress-strained state

S. P. Reshetnyak; Yu. V. Fedotova; S. N. Savchenko

Vol 197

Pages:

169-173

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RUS

Article

Deep open pit walls design using rock mass stress-strained state

Authors:

S. P. Reshetnyak¹

Yu. V. Fedotova²

S. N. Savchenko³

About authors

1 — Ph.D., Dr.Sci. leading research assistant Mining Institute of the Kola Science Centre, RAS
2 — Ph.D. senior research assistant Mining Institute of the Kola Science Centre, RAS
3 — Ph.D., Dr.Sci. leading research assistant Mining Institute of the Kola Science Centre, RAS

Date submitted:

2011-09-01

Date accepted:

2011-11-11

Date published:

2012-05-25

Abstract

One of the main deep open pit mining problems is the wall stability for a long time. It is obvious that the basic area of stress concentration in deep pits is the lower edges of pit walls. We have been studying the possibility of reducing stress concentrations like these by means of the alteration of the open pit bottom part configuration. To do this, there was considered the shape with a smooth passage from walls to the bottom of the pit (by widening the berms in the lower part) instead of trapezoid shape. Calculations were carried out for deep open pits with a flat and rounded bottom across and along the strike of the ore body.

Область исследования:

(Archived) Present-day problems of geomechanics, mining practice and innovation technologies in mining engineering

Keywords:

deep open pit final pit walls stress-strained state stress concentration and rounded bottom

Funding:

None

Deep open pit walls design using rock mass stress-strained state

Abstract

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