釜石鉱山における採鉱の近代化と主要運搬坑道の列車遠隔操作について
1972 年 88 巻 1013 号 p. 388-394
詳細
1972 年 88 巻 1013 号 p. 388-394
As a result of modernization of mining since 1964, the output was increased, in 1970, to 6, 220 tons a day from 5, 477 tons and overall underground productivity to 19.7 tons per man-shift from 13.2 tons.
The main points of the modernization are as follows: 1. Mining a. Installation of elevator in the underground.b. Speed-up of tunnelling and raising. c. Preparation and extending use of AN-FO. d. Improvement of bits and rods for drilling. e. Increase of mining efficiency. f. Loading by larger equipments. 2. Main haulage a. Use of large-size mine cars. b. Remote control of trains. c. Introduction of automatic traffic signal system.
