| 摘要 |
PROBLEM TO BE SOLVED: To provide a sand production processing system and a shield excavator enabling a medicine to evenly penetrate into the sand production in order to sufficiently reduce elution of a processing material in the sand production by the medicine.SOLUTION: A sand production processing system 1 crushes a sand production generated by digging a soil layer and has a sand production processing mechanism 30 capable of adding a medicine, which reduces elution of a processing material such as arsenic into the sand production, to the sand production. The shield excavator 20 has at least the sand production processing system 1.SELECTED DRAWING: Figure 1 |
