Abstract
THE Association of Mine Managers of the Transvaal (Johannesburg) has just issued an interesting volume entitled “Some Aspects of Deep Level Mining on the Witwatersrand Gold Mines with Special Reference to Rock Bursts”. The volume contains six papers by leading practical authorities on Witwatersrand mining, together with the discussions of these papers and an appendix specifically dealing with rock bursts. In spite of the title, rock bursts are not discussed f in all the papers submitted; thus, in the very first paper, dealing with mining on the Robiiison Deep Mine, is the following statement with regard to rock bursts: “This is a subject of such importance that a detailed discussion of same is outside the scope of these notes”. The other papers, however, deal with rock bursts at considerable length, although some of them confine their attention mainly to a class of rock bursts which are called “pressure bursts”; these are defined as follows by Mr. R. E. Mickel, the underground manager of the Durban-Roodepoort Deep Mine: “this type of burst includes bursts in the mined out areas, except punch bursts, and bursts on faces where the solid is not completely destroyed”; apparently this definition is accepted by everybody, but there seems to be a general feeling that that particular variety of rock burst which is known as a pressure burst is fairly well understood by those who have to deal with these very dangerous phenomena. One short paper deals with “Bock Bursts Prevention”, but it would seem that the author has not really succeeded in preventing these serious accidents. The volume may be strongly recommended to all interested in deep-level mining problems.
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Problems in Deep-Level Mining. Nature 134, 453–454 (1934). https://doi.org/10.1038/134453c0
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DOI: https://doi.org/10.1038/134453c0