高密度电法和微动谱比法在青岛石湾沟水库渗漏探测中的应用

Application of High-density Electrical Method and Microkinetic Spectral Ratio Method in Leakage Detection of Shiwangou Reservoir in Qingdao

摘要: 以青岛市石湾沟水库为研究对象，采用高密度电法和微动谱比法对该水库东南部坝体进行联合探测，通过分析其高低阻转换的“畸变现象”和高低谱比值转换的小谱比值区域，找到渗漏的位置和规模，推测其渗透路径为一条走向约354°、宽度约20 m的断裂构造带。钻孔验证结果表明联合探测取得了较好的效果，为该水库后期防渗处理提供了可靠依据。

Abstract: In this paper, Shiwangou Reservoir in Qingdao City is taken as the research object. High-density electrical method and microtremor spectral ratio method are used to jointly detect the dam body in the southeast of the reservoir. By analyzing the "distortion phenomenon" of the high-low resistance conversion and the small spectrum ratio area of the high-low spectrum ratio conversion, the location and scale of leakage are found, and the permeability path is estimated to be a trend of about 354° and a width of about 20 m. After verification by drilling, the results show that the joint detection has achieved good results , which provides a reliable basis for the reservoir's later anti-seepage treatment.