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利用高密度电法对地下介质含水量变化的敏感性特点对滑坡进行监测.采用温纳α、β、γ3种排列装置对废石堆联合勘探.利用同一设备在同一位置分别在雨季前后进行两次数据采集,以降低系统误差.结果表明:在测区的浅表部3种装置测量结果变化较大,但在深部视电阻率比较吻合;同时,在分辨率和性噪比方面,温纳α装置相对其它两种装置具有一定优势.雨季前后两次视电阻率变化很大,平均降低67.62%,呈现出浅表层视电阻率变化率较小,中深层次视电阻率变化较大的趋势,表明雨季前潜在滑坡面含水量很小,雨季后降水使堆积体富含水分,特别是中深部含水量分数剧增,同时也使摩擦系数大大降低,极可能诱发滑坡,该滑坡面深度约29 m.
The landslide was monitored by the sensitivity of high-density electric method to the change of water content in underground medium.With the use of Wynner α, β and γ arrangement devices, the waste rock heap was jointly explored.Using the same equipment at the same location respectively before and after the rainy season Time data acquisition to reduce the system error.The results show that the measurement results of the three devices in the superficial part of the survey area vary greatly, but the apparent resistivity in the deeper part is in good agreement with each other.While in terms of resolution and noise-to-noise ratio, α device has some advantages compared with the other two devices.The apparent resistivity of the two devices before and after the rainy season varies greatly, with an average reduction of 67.62%, showing a small apparent apparent resistivity change rate in the superficial layer and a large change in apparent resistivity in the middle and deep layers , Indicating that the water content of the potential landslide surface before the rainy season is very small. After the rainy season precipitation, the sediment body is rich in water, especially the mid-deep water content fraction increases sharply. At the same time, the friction coefficient is greatly reduced, which is likely to induce landslide. 29 m.