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<br /> <br />C. F. & I. CAiJON CITY QUARRY REPORT <br />SCALE FACTORS <br />'These are operators on the charge weights which permit a single line to <br />represiecit vibrations from a wide range of charge sizes. As a result of <br />many studies, it was found that the levels of vibrations are strong <br />functions of charge weights and shot-to instrument distances, with other <br />variables, such as geology and different explosive types, having relatively <br />minor influence, under normal conditions. <br />Vibration measurerrents are plotted as a curve, or series of curves, relating <br />levels of vibration in terms of particle velocity to charge size and distances <br />from the shots. ?he factor which comprises as the distance in feet divided <br />by the square root of the maxinnun pounds per delay interval. <br />SF = D (ft) / E~Z (Max. lbs./delay) <br />VME -COLORADO <br />