Posted on August 1, 2022
The latest results out-of spray grout columns was influenced by many managed and uncontrolled parameters. A number one details to the controlled of these would be indexed because the shot pressure, pole extract speed, rod rotation price, quantity of nozzles, nozzle diameter and you can H2o/Concrete proportion. And out of control details is soil sort of, floor design, floor layering position, underground water-level, the alterations from inside the stamina details and the rheologic attributes out of concrete after a while. Inside studies, the fresh performance regarding spraying grout columns additionally the aftereffects of move speed and you will rotation speed was investigated experimentally. For this specific purpose, a lab style of sprinkle grouting system was created with the tests. From this system, jet grout articles had been produced in about three various other criteria. The outcomes of the data showed that this new grout tension and you may the latest lifting rate rather impact the efficiency of one’s spray grouting articles.
194 Numerical Example of Aperiodic Diffraction Grating
Diffraction grating is occasional module found in of several technologies fields, the geometrical conception gets interesting attributes from diffraction and you will obstructions, a beneficial consistent and you may periodic diffraction grating contains plenty of similar apertures which can be just as spaced, in this case, the newest amplitude from power shipping in the far community part is actually basically modulated from the diffraction development out of solitary aperture. (more…)