JPH0522007B2 - |
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| 申请号 | JP23142083 | 申请日 | 1983-12-09 | 公开(公告)号 | JPH0522007B2 | 公开(公告)日 | 1993-03-26 |
| 申请人 | Tadashi Niimi; Masaaki Niimi; Masanori Niimi; | 发明人 | NIIMI TADASHI; NIIMI MASAAKI; NIIMI MASANORI; | ||||
| 摘要 | PURPOSE:To prevent the occurrence of flood, by a method wherein a soil layer is impregnated with rainwater stowed in a regulating pond, and when stowed water is increased to a specified water level, saturated water is drained to the outside of soil through an underdrainage facilities installed in a layer under the regulating pond. CONSTITUTION:When a regulating pond is filled with water up to a water level 3, the water is penetrated into a soil layer 4 through promotion of an underdrainage pipe 5. Thereafter, since the penetrating speed of the soil layer 4 is faster than that of a soil layer 8, a penetrating water amount 10 is higher than a penetrating water amount 9, and thereby a water level 11 in gaps in soil in a layer under a regulating pond A is gradually raised to a drainage position 12 in a gutter 6. This causes rainwater, being about to be penetrated into the soil layer 4 fron the regulating pond A, to be guided to the gutter 6 through the underdrainage pipe 5. | ||||||
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| 说明书全文 | |||||||
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