摘要
陈行水库大坝2014年曾进行过除险加固,但加固后仍存在渗漏问题。为进一步查明水库大坝渗漏位置及通道,选用高密度电法装置对大坝进行了探测。本次探测共设计2条测线,结合RES2DINV高密度反演软件进行处理解释,初步圈定了大坝的异常渗漏点3个,即测线1在36～46. 8m与26. 4～28. 8m处有2个渗漏点;测线2在33. 6～34. 8m处有一个渗漏点。经注浆处理后再次进行高密度电法探测,对比视电阻率剖面图发现渗漏段的低阻异常区明显减少,注浆效果明显。
The dam of Chenhang reservoir has been carried out risk removal and reinforced in 2014,but after that the leakage issue still existed.To further identify leakage location and channel,the high density electric survey has been selected to carry out detection.The survey has designed 2 lines,combined with RES2DINV high density inversion software carried out data processing and interpretation.Initially have delineated 3 leakage points,namely Line 1 has two within 36~46.8m and 26.4~28.8m;and Line 2 has one within 33.6~34.8m.To carry out high density electric survey again after grouting treatment,the comparison of resistivity sections before and after has found that the conductive anomalies of leakage segment reduced obviously thus indicated grouting effect is apparent.
作者
郭凯
Guo Kai(Shanghai Branch,China Coal Geology Group Co.Ltd.,Shanghai 200135)
出处
《中国煤炭地质》
2018年第12期106-108,共3页
Coal Geology of China
关键词
高密度电法
电阻率异常
水库大坝
渗漏探测
high density electric survey
resistivity anomaly
reservoir dam
leakage detection
