摘要:在全国耕地减少、建设用地日趋紧张的背景下,滩涂是非常可贵的战略资源。处于淤涨中的淤泥海岸滩涂,在一定条件下是可再生资源。现在盘锦市大洼县有一块沿海的滩涂,对其进行改造,将长久以来遭受海水侵蚀的此块滩涂改成水田,进行水稻种植。
Abstract: the decrease in arable land, construction land increasingly tense background, beach is a strategic resource is very valuable. In the silt coast mudflat evolution of, under certain conditions is a renewable resource. Now the Dawa County of Panjin city is a coastal, its transformation, will for a long time suffer from this piece of beach erosion into paddy field, rice planting.
首先修筑拦潮坝将海水拦截,但由于滩涂西面有海水养殖场,因此还要修建纳潮沟。其次在滩涂北部修建提水泵站,从混江沟西排总取水,用于对滩涂地块淡水洗盐和灌溉供水。进行泵站设计需要选泵、并对泵房的形式和结构进行设计。最后规划灌溉排水渠系,使该滩涂改成水田后,旱可灌水,涝可排水,尽量是水稻在良好的环境下生长。规划灌排渠系需要设计渠系总体布置,然后根据选定的灌水模数计算各级渠道的设计流量,再设计各级渠道的横、纵断面;设计排水沟系,设计够系的总体布置,计算各级沟道的排涝流量、排渍流量,设计沟道的横、纵断面。
The first building tidal barrage in seawater to intercept, but because the beach west sea farms, so should the construction of tidal channel. Secondly, in the tidal flats built north of pumping stations, from mixed Jiang Gouxi row total water for water supply to the beach land, salt and fresh water irrigation. The pump station design need to pump, and form and structure of the pumping station design. Finally, the planning of irrigation drainage systems, the beach into the paddy field, dry water, flood discharge, as is the rice growth in good condition. Planning and drainage canal system needs to design the canal system overall layout, design and calculation of flow channels at all levels according to the selected irrigation modulus, transverse, longitudinal section design of various channels; design of drainage ditch system, general layout design enough lines, drainage discharge, drainage flow calculation at all levels of the channel, the vertical section design, cross ditch tao.
关键词:滩涂改造;泵站设计;灌排渠系设计
Keywords: tidal pumping station transformation; design; irrigation canal design
Abstract: the decrease in arable land, construction land increasingly tense background, beach is a strategic resource is very valuable. In the silt coast mudflat evolution of, under certain conditions is a renewable resource. Now the Dawa County of Panjin city is a coastal, its transformation, will for a long time suffer from this piece of beach erosion into paddy field, rice planting. The first building tidal barrage in seawater to intercept, but because the beach west sea farms, so should the construction of tidal channel. Secondly, in the tidal flats built north of pumping stations, from mixed Jiang Gouxi row total water for water supply to the beach land, salt and fresh water irrigation. The pump station design need to pump, and form and structure of the pumping station design. Finally, the planning of irrigation drainage systems, the beach into the paddy field, dry water, flood discharge, as is the rice growth in good condition. Planning and drainage canal system needs to design the canal system overall layout, design and calculation of flow channels at all levels according to the selected irrigation modulus, transverse, longitudinal section design of various channels; design of drainage ditch system, general layout design enough lines, drainage discharge, drainage flow calculation at all levels of the channel, the vertical section design, cross ditch tao. Keywords: tidal pumping station transformation; design; irrigation canal design
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