火薬の衝撃力を利用した盤木取外し方法の研究
1966 年 1966 巻 119 号 p. 281-288
詳細
1966 年 1966 巻 119 号 p. 281-288
New Method for removing of keel blocks by gun-powder is developed, and its safety and reliability is confirmed by the experiments for real blocks in the docks.
Labour cost is cut down to one tenth of conventional method.
