Research on Experimental Model of Permafrost Resistivity

When the northeast of China steps into winter, the existence of the permafrost makes the traditional ground detection impossible to be accomplished and the soil resistivity jump which lead to the result that the detection cannot be conducted in time or the data of ground resistance test deviates excessively from its actual value in thunderstorm season. As a result, accidents occur frequently. In this paper, through the analysis of the factors which influence the soil resistivity, experimental model of testing resistivity is set, estimate formula of permafrost is given so that the permafrost resistivity can be calculated accurately and thus provide a basis for the design of grounding device in lightning protection project, all these works having positive impact on lightning safety protection and detection.