摘要
为了避免工作面回采过程中形成突水威胁,在工作面形成通风系统后,通过采用矿井瞬变电磁法和矿井音频电透视法等较为成熟的工作面内部区域电法探测技术,对工作面区域富水性进行有效监测,建立了煤矿工作面回采前预报含水体的精细技术方法。结果表明:矿井瞬变电磁法可以多角度多层位探测,对工作面顶、底板方向不同深度含水体能较好的圈定分布范围;矿井音频电透视法可以单层位定向探测,对工作面内部煤层层位进行较好的圈定含水体;综合采用矿井瞬变电磁法和矿井音频电透视法对工作面内部区域进行全面的探测,可以实现工作面区域全方位精细探测。
After the form of ventilation system ,it used mine transient electromagnetic method and mine voivce frequency elctric perspective of more mature the electrical detection technology in work surface inside area to avoid water inrush threat during working face mining process .it may be effective monitoring on the working surface water abundance ,establishing with a fine water-contained forecating technique before the coal face mining ,The results show that ：Mine transient electromagnetic method can be multi-angle and multi-level detection ,better delineating different deep water physical distribution range to the direction of working face roof and base ;Mine voice frequency electric perspective can be the single directional detection , better delineating face internal coal layers of a framed with water ;Combined of mine transient electromagnetic method and mine voice frequency elective perspective comprehensive detection on working face internal region ,it can be realized all-around fine detection complemented .
出处
《中国矿业》
北大核心
2014年第3期88-92,共5页
China Mining Magazine
基金
煤炭科学研究总院基础研究基金"矿井工作面水害电阻率CT法响应实验研究"项目资助(编号:2012JC12)
关键词
矿井电法
矿井瞬变电磁法
矿井音频电透视法
水害探测
工作面探测
mine electrical method
mine transient electromagnetic method
mine voice frequency electric perspective
water disaster detection
face detection
