Different drill and blast patterns are employed in tunnels, and their design should be tailored to the specific conditions of the project. Factors such as the type of rock, geological features, tunnel dimensions, and intended use dictate the selection of the most suitable pattern. If you want to learn drill and blast method in tunnelling along with all other tunnelling methods register for our Online Tunnel Engineering course. Link in bio below https://www.tunnel.engineering/challenge-page/51f74
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Different drill and blast patterns are employed in tunnels, and their des…
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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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