DEEP OPEN PIT WALLS DESIGN USING ROCK MASS STRESS-STRAINED STATE

被引：0

作者：

Reshetnyak, S. P. ^{[1
]}

Fedotova, J. V. ^{[1
]}

Savchenko, S. N. ^{[1
]}

机构：

[1] RAS, Kola Sci Ctr, Min Inst, Moscow, Russia

来源：

JOURNAL OF MINING INSTITUTE | 2012年 / 197卷

关键词：

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

D O I：

暂无

中图分类号：

TD [矿业工程];

学科分类号：

0819 ;

摘要：

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.

引用

页码：169 / 173

页数：5