Infrared thermography is a growing technology in the engineering geological field both for remote survey of rock masses and as laboratory tool non-destructive characterization intact rock. In this latter case, its utility can be found either from qualitative point view, highlighting thermal contrasts on surface, or quantitative involving study surface temperature variations. Since an object pro...

Slope instability phenomena are among the most hazardous natural events affecting our society, and therefore physical–mechanical behavior of rock masses with reference to these is a relevant topic for engineering geological practice, as it conditions realization functionality structures infrastructures, well quality life economy [...]

Stabilized or Chebyshev explicit methods have been widely used in the past to solve stiff ordinary differential equations. Making use of special properties of Chebyshev-like polynomials, these methods have favorable stability properties compared to standard explicit methods while remaining explicit. A new class of such methods, called ROCK, introduced in [Numer. Math., 90, 1-18, 2001] has recen...

In deep rock engineering, the stability of is a key factor [...]

Inertial navigation systems are of the most important and practical systems in determining the velocity, position and attitude of the vehicles and different equipment. In these systems, three accelerometers and three gyroscopes are used to measure linear accelerations and angular velocities of vehicles, respectively. By using the output of these sensors and special inertial algorithms in differ...

One of the options for creating a Deep Underground Science and Engineering Laboratory (DUSEL) is a site in the Mt. Stuart batholith, a granodiorite and tonalite rock mass in the Cascade mountain range in Washington State. The batholith’s 100-year history in hard-rock tunneling includes the construction of the longest and deepest tunnels in the U.S., the parallel Cascade and Pioneer tunnels. The...

The displacement back analysis is an effective means on inversion of rock mechanical parameters. Differential evolution algorithm has many advantages and good prospects to solve problems of geotechnical parameters. The program is used to the simulation of the true tunnel with C++ language, while it is embedded into differential evolution algorithm to achieve the inversion parameter. Applying to...