Research on the identification of hidden collapse columns in high-density 3D seismic exploration:An example from Wutongzhuang No.5 mining area mine field
There are many hidden collapse columns in the coal-bearing strata of the Wutongzhuang minefield,which are easy to cause the influx of Ordovician limestone water and multiple water inrush accidents.In or-der to find out the distribution law of hidden collapse columns in the fifth mining area of Wutongzhuang mine field,and avoid the occurrence of mine water disaster caused by the false exposure of hidden collapse columns in the working face,this paper adopts the'two wide and one high'design through the whole survey area,and uses the time-frequency space compensation method and the full three-dimensional processing quality control method to carry out high-density three-dimensional seismic exploration.The results show that there are three hidden collapse column anomalies in the southwest central direction of the fifth mining area of Wutong-zhuang mine field,which are roughly distributed in a beaded NE direction,which is basically consistent with the trend of F1 fault.
high density three-dimensional explorationconcealed collapse columntime-frequency space com-pensation methodfull three-dimensional processing quality monitoring methodWutongzhuang
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