| 摘要 |
A construction of a green for a golf course which green has a natural grass cover (16) on a layer (17, 18) of sand or a sand/soil and/or peat mixture supported on a layer (19) of pea pebble laid on a water impervious base foundation of puddle clay (20). A plurality of drainage pipes are embedded in the pea pebble layer (19) intermediate the depth of the layer. Each drainage pipe has an outlet member which may be adjusted to determine the level of retained water in the foundation of the green. A no fine concrete layer may be interposed between the pea pebble layer (19) and the base layer of puddle clay (20). <IMAGE> |
