高密度电阻率法在采空区探测中的应用

简述了高密度电阻率法的基本原理和资料解释分析的方法.高密度电阻率法是一种具有成本低、效率高、采集信息丰富并且探测精度高的地球物理探测技术.采用高密度电阻率法,结合全站仪测量空间坐标数据进行地形校正,针对采空区的复杂状况,选用不同的极距,在复杂的采空区地表布设了5条测线,完成了3 679个测点的测量.结合测区地质状况和异常的特殊形态,通过数据处理,确定了采空区的分布位置,取得了良好的探测效果,证明了高密度电阻率法在当今工程地质勘察中具有很大的优势.

Application of High Density Resistivity Method in Mined-out God Area Detecting

The basic principle and the date interpretation of the high density resisivity method are outlined.The high density resistivity method is a kind of geophysical exploration technology which its cost is low,collecting information are rich and the deteting precision is high.Adoptimg high-density resistivity method,with the total station surveying space coordinates for topographic correction,selecting different electrode spacing on different mined-out area types,5 survey lines were laid out on the surface of the complex mined-out areas and measurement of 3 679 survey points were finished.Combining geological conditions and special shapes of anomalies,the location of the mined-out area was identified by data processing and good detection results were achieved.It is proved that the high density resistivity method in today＇s engineering geological investigation has a great advantage.