Uma rotina computacional para estratificação: desenvolvimento e aplicação a solos do Nordeste.

Abstract

This paper presents a statistic on the adequacy of the two, three and four layer models to the soils of the Northeast, from available measurements obtained in the CHESF and Concessionaires of the Region. A comparison is made between the found by the best two-layered model, with the equivalent to the two-layer equivalent model obtained by the Hummel, for all three and four layer soils. In order to debug field measurements, proposed a new criterion for the possible exclusion of measure, replacing the usual criterion of remoteness maximum of 50% over the average. The functions presented by SUNDE (1969) for modeling of the soil in layers, are rearranged in order to to overcome some numerical problems of a practical and enable its implementation in computer. A review of the The least squares method is done with a stratification. Described is the developed computer program to achieve the above objectives, showing its resources and the techniques used. Finally, the characteristics of soils researched, from a resistivity point of view.