| 摘要 |
PURPOSE: A complex drainage material for a soft ground is provided to facilitate drainage since pore water drained on the ground is guided. CONSTITUTION: A complex drainage material for a soft ground comprises a drain board(10), an outer filter unit(20), and a filling material(30). In the drain board, a partition(12) is formed on a panel(11), and a space is formed between the partitions at fixed intervals. The outer filter unit is made of fiber web or non-woven material which covers the external side of the drain board. The filling material is charged between the drain board and the filter unit and functions as a filter and a drain path of pore water. The inner filter unit is installed between the drain board and the filling material. |
