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Mining Engineering Mine Development And Mining Methods Difficulty: Medium

What is the purpose of a "collar" in shaft sinking?

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More Mining Engineering Questions

The representative fraction of scale 1mm = 0.05m is equal to . . . . . . . . Endless haulage systems are classified into . . . . . . . . types. Which type of arrangement of fan is prefered in a mine of low resistance . . . . . . . . The support in shrikage stoping is . . . . . . . . A roadway in the ore body which follows strike.