Several Examinations in Development of Simultaneously Measuring System for P and S Wave Velocity and Electric Resistivity of Rock Samples
Makoto Nakamura(1) and Harushige Kusumi(2)
(1) NEWJEC Inc., Japan. (2) Dept. of Civil Engineering, Kansai University, Japan.
Contacts: nakamu44@pwri.go.jp (Makoto Nakamura)
Abstract
It is an important laboratory test which the elastic waves of rock specimens are measured, and in general the velocities of two types elastic waves are used. In this paper, it is tried to develop the simultaneously measured system for P, S wave velocities and electric resistivity of a rock sample and its laboratory equipment. P and S wave are analytically found out from the recorded waves. And on the same time, the electric resistivity of this rock specimen is measured by geo science (GS) method. In the development of this system, the examination of sensor position and minimum necessary least interval were carried out. Furthermore, P, S wave velocities and electric resistivity obtained from this system are compared with these quantities given by the usual measurement methods. As the results, it is confirmed that this measurement system is useful for the various rock specimens.
raeg2003@tansa.kumst.kyoto-u.ac.jp
Last modified: Thu Nov 07 14:32:43 2002