Novas técnicas de prospecção geotécnica. Diagrafias instantâneas em sondagens destrutivas

Abstract

This paper describes the characteristics, principles of interpretation and field of aplication of automatic record of drilling parameters.  Continuous «logging while drilling» is the measuring and recording as a functions of depth of a physical quantity, measured directly on the drill machine during the drilling, the variations of these parameters being in connection with the mechanical properties of the rock mass.