高密度电阻率法在隧道勘察中的应用

高密度电法具有测点密度大、信息量大、工作效率高等特点，目前在各种行业勘察中得到广泛运用。在测量过程中，可以利用转换装置来改变电极的排列方式，从而得到不同的装置组合，获得丰富的地电信息，有利于数据资料的处理与解释。本文通过高密度电阻率法在明山隧道勘察中的应用，反映了该方法在灰岩地区对探测岩溶和查明隐伏不良地质体发育情况的实际应用效果，对今后高密度电法在工程勘察中的运用具有一定的参考价值。

The Application of High Density Resistivity Method to Tunnel Exploration

High--density resistivity method has the characteristics with large--density sur- veying points, large amount of information and high--efficiency work, so it is used widely in the fields of engineering exploration. In surveying, the converted device is used to change the electrode array mode so as to get the different combined devices and obtain the abundant geo--electric information, which is good for data processing and interpretation. Applying the method to Mingshan tunnel exploration, this paper illustrates the actual ap- plication effect of probing the karst and detecting the development of potential unfavorable geologic body in limestone areas, which provides a valuable reference for the engineering exploration in the future.