高密度电法在湖北黄冈某山体滑坡滑动面划分中的应用

Application of High Density Electrical Method in the Division of Sliding Surface of Landslide in Huanggang, Hubei Province

解决山体滑坡问题确定滑动面的工程手段一般是钻探直接揭露,但是有时受场地条件、成本预算等因素的限制,存在对滑动面难以全面揭露的问题,为解决该问题,本次勘察工作利用高密度电法对某山体滑波滑动面进行划分。高密度电法是电法勘探的一种,利用密集的电极和多次覆盖采集大量有效视电阻率数据,通过数据处理形成二维及拟三维视电阻率测深成果,并推断滑坡体埋深及滑动面位置。通过钻探验证表明,反演模型对滑动面确定以及覆盖层厚度的划分有着较好的应用效果,为高密度电法在地质灾害勘查中的应用提供了参考。

Direct exposure by drilling is the common engineering method to solve landslide problem and determine the sliding surface, but sometimes it is difficult to fully expose the sliding surface due to the limitations of site conditions,cost budget and other factors.In order to solve this problem,this survey uses high density electrical method to divide the sliding surface of a mountain sliding wave.High density electrical method is a kind of electrical exploration,a large number of effective apparent resistivity data are collected by using dense electrodes and multiple covers.Two-dimensional and quasi three-dimensional results are formed through data processing to infer the buried depth of landslide mass and the position of sliding surface,and good application effects are obtained through drilling verification,which provides a reference for the application of this method in geologic hazard exploration.