综合超前探在XLZ_(21)陷落柱探查中的应用研究

Application Research on Comprehensive Advanced Detection in XLZ_(21) Collapse Column

小回沟煤业西辅运巷掘进前方存在隐伏的XLZ_(21)陷落柱,在巷道掘进到该陷落柱附近前采用了直流电法超前物探方法进行探测,基本查明了其边界范围,后又采用了超前钻探和巷道揭露方法,对XLZ_(21)陷落柱影响区进行查明,经3种方法的验证对比,最终确定了XLZ_(21)陷落柱影响边界。

In front of the western auxiliary transportation roadway excavation insidious exists XLZ_（21） collapse column. When the former roadway excavated to explore collapse column,its boundaries were basically identified. Advanced drilling and roadway disclosure were also used to identify the regions affected by XLZ_（21） collapse column. By comparing three methods,the boundaries of XLZ_（21） collapse column was finally determined.