Assessment of rockburst hazard by quantifying the consequence with plastic strain work and released energy in numerical models

论文摘要

Quantifying the rockburst consequence is of critical importance to reduce the hazards with preventative measures in underground mines and deep tunnels. Contours of energy components within a pillar model are plotted at different rockmass damage stages, and plastic strain work and released energy are proposed as indicators of rockmass damage consequence. One pillar model under different loading stiffness is simulated to assess indicators of pillar burst and the resulting damages. The results show the rockmass damage under soft loading stiffness has larger magnitude of plastic strain work and released energy than that which is under stiff loading stiffness, indicating the rockburst consequence can be quantified with plastic strain work and released energy in numerical models. With the quantified rockburst consequence,preventative measures can be taken to avoid severe hazards to mine safety.

论文目录

文章来源

类型: 期刊论文

作者: F.Wang,R.Kaunda

来源: International Journal of Mining Science and Technology 2019年01期

年度: 2019

分类: 工程科技Ⅰ辑

专业: 矿业工程

单位: Mining Engineering Department, Colorado School of Mines

基金: funded by the National Institute of Occupational Health and Science (NIOSH) under Grant Number 200-2016-90154

分类号: TD31

页码: 93-97

总页数: 5

文件大小: 550K

下载量: 31

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