| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a packing material for a catchment hole of a liner plate catchment well, the packing material being used in a drainage structure utilizing a catchment hole installed for gravitational drainage of underground water present on a back face earth side of a liner plate catchment wall, water falling on a back face of the liner plate, and the like in the liner plate catchment well installed as a landslide suppression work mainly in a mountainous area. <P>SOLUTION: An elastic packing material 10 is inserted in a catchment hole 5 provided in each of wave parts 4a, 4b of a liner plate 4 of a liner plate catchment well 1, and the elastic packing material 10 is mounted to whole circumference of a peripheral end of the catchment hole 5 in a water cut-off condition in the state that the packing material 10 is elastically deformed and in close contact with the whole circumference of the peripheral end of the catchment hole 5. The packing material 10 is provided with a groove part 15 which is formed on its outer peripheral surface along the peripheral end 5a of the catchment hole 5 of the liner plate 4 and in which the peripheral end 5a is fitted. <P>COPYRIGHT: (C)2013,JPO&INPIT |
