Pollution prevention manner null at the time of the pollution prevention device, the bed long shaku body embedding machine, and bed long shaku body embedding of the bed long shaku body embedding

摘要

PROBLEM TO BE SOLVED: To provide a pollution prevention device of a longer body burying machine preventing the diffusion of a polluted water occurred when a longer body such as a cable or the like is buried in a predetermined depth under the bottom by limiting it around the burying machine, a pollution prevention method and the burying machine.;SOLUTION: The rear from an excavation front end of a burying machine body B is covered with the front pollution preventive membrane 10 to the rear pollution preventive membrane 30 and the bottom moving pollution preventive membrane 40. The front pollution preventive membrane 10 is used as a permeable canvas 12 fixed to the outside of a roof-like frame 11 continued in the longitudinal direction. In the rear of the burying machine body B, the middle pollution preventive membrane 20 is used as a permeable canvas 22 fixed to the outside of a roof-like frame 21, and it is continuously provided to the front pollution preventive membrane 10. The rear pollution preventive membrane 30 is used as a permeable canvas 32 fixed to the outside of a roof-like frame 31, and it is accompanied with a scope toward the bottom continuously provided to the middle pollution preventive membrane 20. The bottom moving pollution preventive membrane 40 is constituted of a in permeable canvas 43 continuously provided to the rear pollution preventive membrane 30 and a weight 44.;COPYRIGHT: (C)2003,JPO