摘要
随着矿井开采强度与开采深度的不断增大,应力集中对掘进面煤与瓦斯突出的影响日趋增大,严重威胁安全生产,而目前在该类型突出危险性的连续预测预警方面存在不足。根据我国煤矿采掘部署情况,分析了掘进工作面应力影响模式,将其划分为邻近层煤柱影响、本煤层采掘影响及石门揭煤3种类型,并依此构建了1种掘进工作面突出预警方法及系统,主要包括数据采集方法、预警指标及规则、预警结果等级。现场应用表明:该方法及系统能够及时、可靠、连续的预测采掘应力叠加引起的突出危险性。
With the increasing of intensity and depth of underground mining,the stress concentration are posing increasing influence for coal and gas outburst in the heading face,which seriously threatens the safety production,but there are some shortages in continuous early-warning for this type of gas outburst risk. According to the mining deployment of our country,the stress effect mode of heading face is analyzed,it is divided into three types,such as the coal pillar impact of adjacent layers,the mining impact of current coal seam and the cross-cut uncovering coal,and then the warning method and system of gas outburst is established which includes the data collecting methods,early-warning indicators and rules,grades of warning results. The field application shows that this method and system can opportunely,reliably and continuously forecast gas outburst in the heading face caused by stress superposition.
出处
《煤矿安全》
CAS
北大核心
2015年第6期160-163,共4页
Safety in Coal Mines
基金
"十二五"国家科技支撑计划资助项目(2012BAK04B01)
中国煤炭科工集团有限公司科技创新基金资助项目(2013ZD002)
关键词
掘进工作面
应力
煤与瓦斯突出
预警方法
预警系统
heading face
stress
coal and gas outburst
early-warning method
early-warning system
