火焔併用方式による岩石の機械掘さくに関する基礎的研究 (第2報)
1972 年 88 巻 1013 号 p. 423-428
詳細
1972 年 88 巻 1013 号 p. 423-428
This paper presents the results of the theoretical considerations concerning the experimental results for the mechanical rock cutting method combined with the thermal action by flame, which have been reported previously.
At first, the temperature distribution induced in a rock mass due to a heat source moving on the rock surface has been calculated and then, the thermal stress distribution in the rock mass due to the above temperature distribution has been analyzed.
Secondly, the range of the fissurerized zone which has been caused by either the thermal stresses or the stresses induced by the thrust of a cutting tool has been presumed.
Finally, the mechanism of the mechanical rock cutting which has been used with the preceding thermal action has been considered using the results of the above studies.
