太平洋炭砿における沿層掘進技術の変遷と将来
1983 年 99 巻 1146 号 p. 631-634
詳細
1983 年 99 巻 1146 号 p. 631-634
It is serious problem for undersea steaming coal mine to increase output and efficiency. We have solved this problem by means of mechanization.
SD longwall system is a typical highly-mechanized mining system which we achieved. Output and efficiency of the mine has been reached high level by this system. In the process of the development of this system, high-speed in-seam roadway driving system has been also developed to meet high advancing-rate of the retreat longwall face. Today, the total distance of the in-seam roadway drivage per year is approximately 40, 000m, and most of them are driven by continuous miner system. Many changes of equipment, roof support, and panel layout have taken place in these 25 years since the first introduction of the continuous miner in 1958.
Now, we are planning to develope further advanced in-seam roadway driving system.
