Modeling the failure of rock blocks by blasting a cylindrical charge

被引：7

作者：

Aleksandrova, N. I. ^{[1
]}

Sher, E. N. ^{[1
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Inst Min, Novosibirsk, Russia

来源：

JOURNAL OF MINING SCIENCE | 2006年 / 42卷 / 01期

关键词：

fractured rock; strength; explosion; deep-hole charge; fragmentation;

D O I：

10.1007/s10913-006-0026-7

中图分类号：

TD [矿业工程];

学科分类号：

0819 ;

摘要：

The calculation model of breaking action exerted by a cylindrical charge blasted in a block rock mass is proposed. The deformation of a block medium in the zones of elasticity and heavy fragmentation is described by a continuum, properties of which are changed as compared with monolithic rocks. It is shown that the accounting of the block rock strength decrease in the massif influences greatly the calculated failure parameters and provides an opportunity to obtain fragmentation zone sizes, close to those observed in actual rock blasting.

引用

页码：27 / 34

页数：8