宮田又鉱山の廃さい処理について
1955 年 71 巻 807 号 p. 553-559
詳細
1955 年 71 巻 807 号 p. 553-559
The method of tailing disposal at Miyatamata Mine is a so-called “pile up” method. Pulp from the mill plant, 19%solid, -200mesh 50%, flows by gravity in ditches which have been built on the preceding pile up sand terraces, and are paralled with the base dam. Deslimed sand in the ditches is shoveled up into border crests. When the ditches become shallow, the outside of border crest is conditioned in 14°C slope forming dam face.
Advantages of this method are as follows:
1) Low cost of construction of base dam.
2) Easy selection of dam situation.
3) Natural sizing of slime in ditches.
4) Sufficient inspection and good control of dam by laborers.
