WebHowever, large blasting vibration and severe damage to the reserved slope were the troubles. At present, digital electronic detonator is applied in slope engineering to control the effect of blasting vibration. Excavation methods of slope are mainly deep-hole blasting, presplitting blasting, smooth blasting or their combination. WebSep 14, 2024 · The x-axis baseplate was equipped with a blasting stylus holder in a pivoting mounting (settable to angles of 45°, 60° and 90°) (Fig. 1c), which was interfaced with one of the three blasting protection tubes (machined to their respective blasting angle) (Fig. 1a). Additional components included in the construction were: a control unit, …

Neural Network Applied to Blasting Vibration Control Near

Webfractures, whatever their cause, will have a major disruptive effect upon the integrity of the rock mass and this, in turn, will cause a reduction in overall stability. Hoek (1975) has argued that blasting will not induce deep seated instability in large open pit mine slopes. This is because the failure surface can be several hundred metres WebJan 1, 2024 · Air decking is a widely used controlled blasting technique that requires an air space in the blast hole above the explosive charge [5].The purpose of this air space, called a deck or air-deck, is to allow for the gases generated during the detonation process to fill the void instead of being forced into the adjacent rock mass [5].A conceptual diagram of … michael smith obituary ogden utah

Rock fragmentation control in opencast blasting - ScienceDirect

WebDec 1, 2008 · Blast effect monitoring data (such as ground vibration levels, air-over-pressure measurements). ... near their homes. Some recent tragedies with explosives have created genuine fear among the general … WebMar 1, 2005 · 7.3 Underground Blasting – Underground Effects 7.3.1 Introduction 7.3.2 Effect of Vibration on Parting between Two Contiguous Seam Workings 7.3.3 Comparative Study of Effect of Blasting with Machine Cut, Auger Holes and Blasting off the Solid 7.3.4 Air Overpressures in the Underground Workings 7.3.5 Zone of Disturbance Caused by … WebJan 1, 2005 · During blasting in loosely jointed rock the critical factor is whether or not the drilling pattern is wider than joint spacing. lf it is, then contour problems can be expected. The frequency of joints in the range of 2–3 joint planes per spacing may produce adverse effects on perimeter control. 3.1.4. Filling in the joints michael smith pei resort