摘要
以长平煤矿1303回采工作面为研究对象,利用YDT88坑透仪对其内部陷落柱发育情况进行精细化探测,结合场强吸收系数CT图和实测场强曲线对反演异常区进行地质解释。研究表明:YDT888坑透仪在365 kHz频率下工作时,通过加密收发测点方式可以对180 m宽工作面内陷落柱有效探测,确保安全回采。
Taking the 1303 working face of ChangpingCoalMine as a research object, the YDT88 radio wave fluoroscope was used to make detailed detection of its collapse columns, and combined with the CT image of the field strength absorption coefficient and the measured field strength curve, a geological interpretation of the anomalous area was performed. The results showed that when YDT88 radio wave perspective meter worked at 365 kHz frequency, it could realize the effective detection of the collapse columns inside the 180 m wide working face by encrypting the transmitting and receiving measuring points to ensure safe coal winning.
作者
王龙成
杨高峰
WANG Long-cheng;YANG Gao-feng(Shanxi Changping Coal Industry Co.,Ltd.,Gaoping,Shanxi,048411)
出处
《煤炭科技》
2020年第4期116-118,共3页
Coal Science & Technology Magazine
关键词
回采工作面
陷落柱
无线电波透视
吸收系数
实测场强
coal winning face
collapse column
radio wave perspective
absorption coefficient
measured field strength
