Memoirs of the Faculty of Engineering, Yamaguchi University

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Memoirs of the Faculty of Engineering, Yamaguchi University Volume 15 Issue 1
published_at 1965

How to prevent Convergence and Fall in the GAllery.

坑道の狭小化および崩落防止のための調査と考え方
Higuchi Seiichi
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About This Article
Descriptions
Various causes of convergence of the gallery were pursued, and the methods for reasonable supporting determined by investigations on the strata around the gallery were described. The counter measure to prevent fall of rocks in a roadway was also discussed.
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Synthetic Sulfide Minerals (I)
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Synthetic Sulfide Minerals (II)
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How to Prevent Fall of Roof Rocks in a Longwall Face
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How to prevent Convergence and Fall in the GAllery.
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