A blasting in tunnel. Drill and blast method is one of the most flexible tunnelling methods in hard rock. This method can be performed in wide variety of geological condition, in any tunnel shape and dimension. Design of the drill and blast pattern is an important part of this method. Ground borne vibration, air blast and fly rock are important factors that should be considered in the design along with more common parameters such as advance rate, powder factor, drill factor, maximum instantaneou
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A blasting in tunnel. Drill and blast method is one of the most flexible …
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Understand Blast Control Techniques – Part 1 (Introduction) I am excited to kick off a new series diving into the world of blast control in mining and construction. Controlling blast outcomes is key… | Blessing Olamide Taiwo 🎇
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Drill and blast method is one of the most common excavation techniques in rock. Drill & blast method is used in both mining and civil engineering industry. In this video it's used for the excavation of a pipeline. In tunnelling drill and blast is a common and flexible technique for excavation of tunnels in hard rock. tunnel.engineering #drillandblast #blasting #pipeline #excavation #blasting #blast #tunnelengineering #miningengineering #miningindustry #mining #geotechnicalengineering #tunnelling
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Drill and blast method is one of the most common excavation techniq…
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The drill and blast method in tunnelling involves drilling a series of holes in a precise pattern, then filling them with explosives to break and remove rock. The design of the drill and blast pattern is crucial, as it determines the effectiveness and safety of the operation. It factors in rock type, tunnel size, and desired fragmentation. Proper sequencing and timing of blasts are essential to minimise vibration, control overbreak, and maintain the tunnel's structural integrity. Follow us at tu
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The drill and blast method in tunnelling involves drilling a serie…
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🟢 🚧 Drill and blast remains a versatile excavation method for variable rock masses where mechanised methods are unsuitable. Effective delivery depends on a thorough geotechnical investigation and geomechanical assessment, a defensible blast design subject to independent review, and the coordinated provision of temporary support and permanent lining (for example shotcrete, rock bolts or cast concrete) as required by ground conditions. Emphasis is placed on documented control of blast induced vi
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🟢 🚧 Drill and blast remains a versatile excavation method for variable ro…
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