Abstract

Resistivity which is one of the physical parameters of material plays an important role in many fields of research and application. Especially in geotechnical field, it is a necessary parameter to estimate effect in underground constructions, protecting the buildings from electrochemistry and designing lightning-conductors, etc. This paper introduces the average resistivity maps of Ho Chi Minh city, built by the Zohdy method for the automatic interpretation of sounding curves based on a huge of VES' carried out in Ho Chi Minh city. Then, the average resistivity is calculated by traditional formulas and Dudás algorithm.