| 摘要 |
PURPOSE:To cover the whole surface of a slope with a covering sheet provided integrally by a method in which floats are detachably attached to the covering sheet, the sheet is moved to a given position on water surface on the reclamated side and pulled up to the slope and the shoulder, and the floats are removed out to cause the covering sheet to sink. CONSTITUTION:Plural floats 6 are detachably attached to both side edges of a covering sheet 5, and the sheet is floated on water surface on the reclamated side of a dam 2 and moved to a given position. The sheet 5 is pulled up to the slope 7 and the shoulder 8, the floats 6 are orderly removed out of the end portion, and the sheet 5 on the reclamated side is allowed to sink. The whole surface of the slope, ranging the shoulder 8 of the slope on the reclamated side of the dam 2 to the bottom 10 under water, is continuously covered with the sheet 5 integrally. Environmental pollution caused by industrial wastes dumped in the reclamated side water region can thus be effectively prevented, and the sheet 5 can be easily delivered to given positions and exactly sunk on the slope. |
