Study on the Detection Effect of Aquifer Based on Five-Pole Longitudinal Axis Sounding Method
In order to find out the distribution characteristics of mine aquifers and prevent the occurrence of mine water inrush accidents,this paper uses the five-pole longitudinal axis direct current sounding method combined with the actual geological conditions of the mine to detect and study the apparent resistivity of the strata within 260 m depth in the mine research area to find out the Quaternary and Neogene in the study area.The distribution and thickness of layered and lenticular thin sand and gravel aquifers.The detection results obtained by the five-pole longitudinal axis DC sounding method are compared with the symmetrical four-pole sounding results and drilling results respectively.The analysis results show that the five-pole longitudinal axis sounding method has higher longitudinal resolution for thin-layer and lenticular water-bearing geological bodies.It can realize the fine division of the electrical properties of the strata in the mining area,and can provide technical basis and support for hydrogeological exploration,mine water inrush prediction and coal mine safety production.
NETL
NSTL
万方数据
