Question: Problem 1 . A mine operation blast crew is planning to take a production blast. The blast design pattern has a burden and spacing (

Problem 1.
A mine operation blast crew is planning to take a production blast. The blast design pattern has a burden and spacing (BxS) of 2025 feet respectively for a bench height of 50ft. The crew had decided the blasthole diameter to be 279.4mm which has a drilling accuracy of 0.1m and a length of 12m. For the given blast evaluate the fraction of material passing the screen sizes given below in the table. Plot the cumulative size passing curve Assume absolute size constant value (b) of 0.635.
\table[[\table[[Screen Size],[Inches]],\table[[Cumulative],[Fraction Passing]]],[1.5,],[1,],[0.75,],[0.5,],[0.375,],[0.25,],[0.0787,],[0.0059,],[-0.0059,]]
 Problem 1. A mine operation blast crew is planning to take

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