自由断面掘進機の発展経緯と将来 The Development of Roadheader and it's Future
Roadheader was developed as a heading machine of coal mine in 1 9 6 6 in Japan, following to other countries. At first, it cut coal seams. And it has been improved to cut more severe strata. In Japan there was a big market for digging tunnels in the field of civil engineerings. Roadheader has been widely used for a heading machine of tunnels in Japan. The specification to be attained for tunneling was slightly different from that of coal mine. To improve cutting abilities, a big cuttinng force and a machine stability is most important. But increase of cutting force is restricted by a machine weight. Because it is inevitable for a selecting cutting system to receive a reaction force by a friction of machine weight. In future Roadheader will become a more powerful and useful machine.
- 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan
資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan 114(10), 693-698, 1998-09-25
The Mining and Materials Processing Institute of Japan