Method for determination of the horizontal radial value of the ground vibrations amplitude for different distances from the vibration source

摘要

how to determine the value of the horizontal radial amplitude ax ground vibrations for various distances from the source of vibration generated by the firing of explosiveplaced in spaced openings in the strzau0142owych, is applicable in the mining odkrywkowym, in order to determine whether the vibration parasejsmicznych is kou0142owo,in which the measurement of horizontal radial amplitude ax ground vibrations shall be at the measuring points located at different distances from the source of vibration and at different angles so? ,each of which is the angle between the line and the line joining the shot holes measuring point with a source of vibration.which represents the shot hole or a line shot holes is suchthat's from a few to several measuring points for which the angle code? is range from 0o to 90 degrees and measured their actual distance r from the source of vibration.successively designates the average the distance s, and then the actual distance r of individual measurement points from the source of vibration is divided by the average value of distance s,what is the impact indicator distance rd for each measuring point.then multiplied value of horizontal radial amplitude ax ground vibrations measured at the measuring point by corresponding to the measurement point impact indicator distance rdand the results obtained for the average distance s measurement points from the source of vibration, for selected from a few to several measurement points, for which the angle code? is from 0o to 90 degrees.inscribed on the coordinate system and presented graphically using the graph ax = f (?) horizontal radial vibration amplitudes, which shall thenif the vibration parasejsmicznych is kou0142owo.