摘要
在刘官庄矿地面二、四层露头区进行了地面高密度二维电法勘探,勘探共布设5条测线,通过对采集的数据进行正反演处理,获得1#-5#测线的电阻率断面图。从该成果图上可以看出,在2层煤与4层煤中,5条测线都存在低阻异常。经钻探验证,在1#测线与5#测线相交位置,孔深35.21m处为4煤层采空区;在2#测线孔深19.3～21.3m处,发现2煤层采空区,孔深38m时,发现4煤层采空区。
2D electric prospecting is carried out for Nos.2 and 4 coal seams outcrops in the Liuguanzhuang coalmine.Totally 5 exploration lines have laid out,Through forward and inversion processing of acquired data,have obtained Nos.1~5 exploration lines＇ resistivity sections.From the sections can find that in Nos.2 and 4 coal seams,all 5 exploration lines have low-resistivity anomalies.After drilling verification,at the intersection of line No.1 and line No.5,borehole 35.21m depth has found gob area of No.4 coal seam;at the line No.2 borehole depth 19.3~21.3m has found gob area of No.2 coal seam,borehole depth 38m gob area of No.4 coal seam.
出处
《中国煤炭地质》
2010年第B08期79-82,共4页
Coal Geology of China
关键词
高密度电法
采空区
电阻率断面图
high density electric method
gob area
resistivity section
