摘要
根据断层裂隙带地电特征建立地球物理模型,进行直流电阻率法超前探测数值模拟,分析了迎头前方存在隐伏构造时视电阻率响应特征,巷道空腔对小极距探测结果影响较大,但不会掩盖地质体异常响应,提出采用三点三极装置并绘制视电阻率等值线图的数据采集处理方式,有助于圈定异常体空间位置。
Geophysical model established based on the geoelectric characteristics of fault fractured zone, DC resistivity method advanced detection to carry on the numerical simulation, and analyzed the response characteristics of the apparent resistivity when roadway front ahead exist concealed structure. The results show that roadway cavity has a great influence on the detection results of small spacing of electrodes, but the anomaly response of geological body is not screened; it＇s helpful to delineate the spatial location of anomalous body by the data acquisition and processing method of the 3 points- 3 poles and drawing the apparent resistivity contour map.
出处
《煤炭技术》
CAS
北大核心
2016年第12期140-142,共3页
Coal Technology
关键词
直流电阻率法
超前探测
响应特征
DC resistivity method
advanced detection
response characteristics
