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高密度电阻率法是工程勘测的一种有效方法。该文针对城市地基的特点,提出了方法和技术的改进,即施工时把电极插入装有泥土的矿泉水瓶中以减少接地电阻;数据采集时采用联合三极装置;数据处理时对于重复观测的测点用平均视电阻率作为其视电阻率。文中最后用实例说明了该方法和技术改进后的效果。
High density resistivity method is an effective method for engineering survey. In this paper, according to the characteristics of urban foundation, the methods and techniques are proposed to improve, that is, the electrode is inserted into the mineral water bottle during construction to reduce the grounding resistance; the data acquisition adopts the combination of three-pole device; Measured point with the average apparent resistivity as its apparent resistivity. Finally, an example is given to illustrate the improved effect of the method and technique.