Rad Langston’sground controlmanual
7.Provide written answers to the following questions from Rad Langston’sground controlmanual: a.What is the main idea thatgoverns support for anyunderground opening? b.What two types of support combine together that builds the arch? c.The mats or any surface support should be spaced no further apart than how many times the block length inthe rock mass?d.What is […]
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