摘要
为了查明木城涧煤矿采空区范围及其富水性特征,运用矿井瞬变电磁法对采空区进行探测,探测过程中采集了2组感应磁场强度数据。通过对采集到的数据进行分析和处理,基本上查明了采空区的范围和富水情况。结果表明:采空区内富水性较强,局部地区由于顶板垮落作用,富水性减弱,因而视电阻率呈现不均匀变化。建议在采空区周围留设合适的防水煤柱,以保障周围工作面的安全回采。
Due to the water accumulated in the goaf of Muchengjian Mine,West Beijing,a potential danger would be brought to the mine safety.In order to detect the goaf scope and watery features,the mine transient electromagnetic method was applied to the detection of the goaf and the two group induced magnetic field strength data were collected during the detection process.With the analysis and processing the data collected,the goaf scope and watery conditions were basically verified.The results showed that there was high watery in the goaf and in some local area of the goaf due to the roof collapse,the watery would be reduced.Thus the visual resistivity was inhomogeneously varied.The paper proposed that rational coal pillars for water proof should be left around the goaf in order to protect the safety mining of the adjacent coal mining faces.
出处
《煤炭科学技术》
CAS
北大核心
2010年第8期115-117,共3页
Coal Science and Technology
基金
国家重点基础研究发展计划(973计划)资助项目(2006CB202208)
关键词
木城涧煤矿
瞬变电磁法
采空区
富水性探测
Muchengjian Mine
transient electromagnetic method
goaf
watery detection
