高密度电法在新疆某水库大坝病险隐患探测中的应用

高密度电法集电测深和电剖面装置于一体,具有采集数据量大、效率高、成本低、反演信息丰富、易于解译等特点,是大坝病险隐患探测应用较为成熟、可靠的一种物探方法.通过对新疆吉林二库坝体、坝基渗漏探测高密度电法应用成果分析,推断CX1线4处直立条带状低阻异常为坝基充水渗漏通道的反映,对低阻带位置开挖并进行灌浆处理后,渗漏隐患消除...

Application of Multi-electrode Resistivity Method in Detection of Hidden Dangers of a Reservoir Dam in Xinjiang

The multi-electrode resistivity method integrates electrical sounding and electrical profile devices,thus has the characteristics of large amount of collected data,high efficiency,low cost,rich inversion information,and easy interpretation.It is a kind of mature and reliable geophysical prospecting method for detecting hidden dangers of dams.Through the analysis of the application results of the multi-electrode resistivity method for the leakage detection of the dam body and dam foundation of Jilin reservoir No.2 in Xinjiang,it is inferred that the four vertical strips of low resistance anomalies on the CX1 line are the reflection of the water-filled leakage channel of the dam foundation.After excavation position with low resistance and grouting process to the low resistance zone,the hidden danger of leakage is eliminated,which verifies the effectiveness of the multi-electrode resistivity method in detecting leakage passages in the dam.