石炭の強度と切削抵抗
1957 年 73 巻 824 号 p. 81-85
詳細
1957 年 73 巻 824 号 p. 81-85
In this paper, the tensile and compressive strength of coal brought from variouscoal mines in our country were measured and their characteristics were explained. Then the results obtained therefrom were compared to those by the cutting resistance. We found an experimenta formula concerning them, comparing it to that of Mr. C. C. HEKPACOB.
It was also made clear that the friability of coal is more suitable and practical method of anticipating the cutting resistance of coal than the strength of coal.
