The Application Of 3-D Seismic Exploration Technology In The Third Panel Area Of Bu Ertai Coal Mine

Seismic exploration technology is widely used in geophysical prospecting,bringing huge economic benefits to mining enterprises.In this paper,the application of3-D seismic prospecting technology in the third panel area of Bu Ertai Coal Mine has been used to find out the development of geological structure and coal seam occurrence,which provides reliable geological basis for ensuring safe and efficient production and panel design.In this paper,the direction of 3-D seismic exploration line is basically vertical structure direction and stratum direction.the field data acquisition is carried out by using the regular bundle observation system of 12-line 12 guns,NW-SE wiring receiving and covering 36 times.The data processing results in 3-D stacked data volume,migration data volume and frequency-division data volume with an area of2.24 km~2,each with a sampling interval of 5 m*5 m*1 ms.Four anomalous areas are explained in this study.From West to East and from south to north,the anomalous areas are 1-4.Among them,anomalous areas 1 and 3 are delineated on the upper coal seam of 1-2,and anomalous areas 2 and 4 are delineated on the upper coal seam of 4-2.The results show that the main coal seams in the area have similar occurrence patterns,generally showing a trend of high in the East and low in the west.The burial depth of each coal seam has little change,the strata are relatively slow,and the dip angle is generally between 1 degree and 5 degree.The structure is dominated by faults and gentle folds.There are 15 faults in the combined area,all of which are normal faults,and the strike is mostly NE or NW,with small drop and strong regularity.The prediction results show that the thickness of the upper 1-2 coal seam varies greatly in the region,generally showing a trend of thinning from the middle to the surrounding,and the thickness range is generally between 3.2m and 6.2m;the thickness of the 2-2 coal seam varies greatly,generally showing a trend of thinning from the east to the southwest,and the thickness range is between 1.13m and 4.4m;the thickness of the upper 4-2 coal seam varies greatly,showing a trend of thinning from the east to the west.The range of thickness change is generally between 4.8m and6.35m.The thickness of coal seam under 5-2 changes greatly,showing a trend of thinning from east to west to middle,and the range of thickness change is between1.2m and 2.6m.