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一、二案辟港建闸问题的提出二案辟港建闸工程问题是因二案提水站工程的改建而产生的、二案提水站工程位于如皋二案镇长江边,1970年建成,工程包括提水站一座,安装圬工泵10台,设计流量50m~3/s,总装机容量2800kW;7m×100m船闸一座.工程建成后,在一段时期内对补充如(皋)海(安)高沙土地区水源,发展高沙土地区灌溉起了一定作用.但1974年以后,由于长江如皋段主流南偏,引水汊道(长江北汊)淤浅,至1976年提水站下游1.2km引河全部淤塞.1978年特枯年,为解决该地区灌溉水源,曾动员民力疏通,7～9月共翻水2.4×10~8m~3,但终因河势变迁,只运行约100天,引河再度淤塞.1989年根据南通市西部高沙
One or two cases proposed Hong Kong to set up the gate problem Two cases to set up the port project to open Hong Kong is due to the two cases to raise the water supply station project rebuilt and generated two cases of water pumping station project is located in the Rugao case of the Yangtze River, built in 1970 , The project includes a water pumping station, installed 10 pumps, the design flow of 50m ~ 3 / s, the total installed capacity of 2800kW; 7m × 100m ship lock. After the completion of the project, within a period of time to add such as (Gao) sea An) irrigation in high sandy soil area and high irrigation area played a role in irrigation.But after 1974, due to the mainstream of the Yangtze River Rugao section of the south, the diversion channel (Beibei Changjiang River) silt shallow to the pumping station in 1976 to 1.2km In 1978 the special dry years, in order to solve the irrigation water sources in the region, have mobilized civil power to clear, from July to September a total of 2.4 × 10 ~ 8m ~ 3, but due to changes in the river, only run for about 100 days, River cited once again blocked .1989 According to the high sand in Nantong City