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Vol 82
Pages:
47-49
Download volume:
RUS
Article

Calculation of the minimum width of pillars during combine mining of potash seams

Authors:
N. M. Proskuryakov
A. K. Chernikov
Date submitted:
1979-08-23
Date accepted:
1979-10-22
Date published:
1980-02-01

Abstract

Let n interpass healds of width a be left in the chamber of width L to support the roof. Let's find the minimum value of a ...

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