| 摘要 |
PROBLEM TO BE SOLVED: To provide a rainwater reservoir permeation structure capable of getting a large volume of water and gradually permeating and draining the stored rainwater, excellent in the workability and cost effective. SOLUTION: A plurality of box-shaped precast concrete blocks 1 are formed having openings 5, 6 at the side face in which corners of a square top plate 2 and bottom plate 3 are parallelly connected at the columns 4. These concrete blocks 1 are arranged in both longitudinal and breadthwise directions to form a structural body 21 having a successive water reservoirs. Holes 45 for opening for water are formed at the periphery of the structure 21. The rainwater in the structure can outflow from the opening 45. The structure 21 has a large constricted reservoir capacity in one position, As the rainwater in the inside flows out of the hole 45 for water opening of the periphery of the structure 21, the accumulated rainwater can be gradually drained. COPYRIGHT: (C)2005,JPO&NCIPI
|
