... for this are explored. The Australian Lunar Regolith Simulant (ALRS-1) was measured to have a P-wave velocity of 98.6 m/s using a piezoelectric transducer of with a source frequency of 54 kHz, and the Mars Mojave Simulant (MMS) dust was measured to have a P-wave velocity of 83.1 m/s, 61.3 m/s and 72.6 m/s using three...

...). changes in P-wave velocity and electrical resistivity, relative to the values before the gallery excavation, at various times after the excavation (149 1759 days). The results demonstrate that P-wave velocity decreased by up to about 25 %, and electrical resistivity increased by up to about 50 %, due...

... was designed to be with a total height of about 12m as illustrated in Figure 8. The slope angles was about 55 degrees. There are two benches with a height of 6 m. Figure 8. Rock-cut geometry 771 5 GEO-TOMOGRAPHIC INVESTIGATIONS 5.1 Procedure The method is based on p-wave velocity. Vibration source was hammer...

... were the P-wave velocity measured in the velocity logging during the boring and the P- and S-wave velocities, wet density, Poisson s ratio, and unconfined compressive strength of cores measured in the laboratory. As the results of analysis, in-situ elastic modulus along the borehole wall is used...