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高密度电阻率法在不稳定斜坡探测中的应用 被引量:6

The application of high density resistivity method in detecting unstable slope
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摘要 为有效治理汶川地震产生的不稳定斜坡,应用了高密度电阻率法对斜坡结构特征进行探测。实测资料表明,高密度电阻率法对地下倾斜和垂向电性不均匀体分辨率较高,可用于准确判断地下异常体位置、形状、规模和埋深等;二维高密度电阻率反演地电断面色谱图能准确反映不稳定斜坡的规模、纵(横)向发育及展布情况和空间形态特征等;色谱图中的高低阻形态较好的对映了不稳定斜坡覆盖层、基岩面、富水带、溶洞和裂缝,并能较准确确定不稳定斜坡滑移面起伏形态,大致推算不稳定斜坡土石方量,为不稳定斜坡治理提供依据。 Wenchuan earthquake has induced many unstable slopes,causing much risk.For removing risk and managing unstable slope,we use high density resistivity method to explore the architectural feature of unstable slope.It obtains good geology effect.By analyzing the actual measurement data,we find high density resistivity method has higher resolution in detecting incline and vertical inhomogeneity.It can determine location,shape,dimensions and burial depth accurately.2-D high density resistivity inversion section chromatogram can reflect the scale,the developmental degree of longitudinal and transverse section,spatial shape.The abnormal shape and characters can reflect overburden thickness,basal layer boundary,water—riched zones,karsts cave and sliding surface.Even it can calculate the amount of fill dam.All of these provide the basis for rebuilding after the earthquake.
出处 《煤田地质与勘探》 CAS CSCD 北大核心 2012年第4期71-74,共4页 Coal Geology & Exploration
关键词 高密度电法 不稳定斜坡 地质灾害 工程物探 high density resistivity method unstable slope geology calamity engineering detection
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