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0 前言电阻率是地质察勘中的一种常规方法,70年代初水利部门将电阻率法应用于堤坝隐患的探测中,取得了良好的效果,总结出了一些经验和方法。鉴于我省堤坝多、隐患多的情况,省水科所在学习前人经验的基础上开展了电法勘探堤坝隐患的工作。1 电阻率法的基本原理及野外工作方法电阻率法应用于堤坝隐患探测中是利用两个电极向地下供电建立人工电场,用另外两个电极在地面上测量电场的分布状况,即测量两点间的电位差和供电电流,计算出电阻率。
0 Preface Resistivity is a conventional method in geological survey. In the early 1970s, the water conservancy department applied the resistivity method to the detection of hidden dangers in dikes, and achieved good results and summed up some experiences and methods. In view of the many dikes and hidden dangers in our province, the provincial water conservancy department carried out the work of investigating the hidden dangers of embankments on the basis of learning previous experience. A resistivity method of the basic principles and field work method Resistivity method used in the embankment detection of hidden dangers is the use of two electrodes to the ground to establish artificial electric field, with the other two electrodes on the ground to measure the distribution of the electric field, that is, measuring two points Between the potential difference and the supply current, calculate the resistivity.