| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproof mat for a riverbed, which enables an anchor pin to be driven in any position by preventing an anchor pin driving position from being restricted, and a method for laying the same.SOLUTION: A waterproof mat 11 for a riverbed includes: a water sealing sheet 15 which has an undersurface side formed as an uneven surface 13; a water-absorbing nonwoven fabric 19 which is formed smaller by an overlap margin 17 than the water sealing sheet 15 and superposed on the top surface of the water sealing sheet 15; and a nonwoven fabric 21 with cushioning properties, which is formed in such a manner as to be identical in outer shape to the water-absorbing nonwoven fabric 19 and superposed on the top surface of the water-absorbing nonwoven fabric 19. |
