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解惑“MD0112私人麻将馆艾秋”-梳理天下新闻

南水北调全面MD0112私人麻将馆艾秋通水十周年丨滴滴南水背后的“大国重器”

来源: 中国食品报
2024-12-10 21:49:54

最佳回答

“MD0112私人麻将馆艾秋”南水北调全面MD0112私人麻将馆艾秋通水十周年丨滴滴南水背后的“大国重器”

  12月1MD0112私人麻将馆艾秋2日是南水北调实现全面通水十周MD0112私人麻将馆艾秋年。十年间,汩汩南水,奔腾北上。那么南水是如何跨越千里,抵达广袤的华北平原?一起来打卡南水北调沿途的“大国重器”。

  丹江口水库是南水北调中线工程水源地,通过丹江口大坝加高工程,坝顶提高至176.6米,蓄水位由157米抬高至170米,增加丹江口水库库容116亿立方米,相当于820个西湖容量。

  总台央视记者 张琪:我现在在丹江口水库,这里,就是这一滴水旅程的起点。

  丹江口水库相当于一个大水盆,陶岔渠首枢纽则是水盆旁边的一个水龙头,它的放水量最多可以达到每分钟25200立方米。这滴水从这里出发,一路向北,飞奔到河南平顶山,在这里遇到了沙河、将相河、大郎河的阻挠,需要架设一段全长9.05千米的沙河渡槽,才能顺利通过这道关卡。其中U型渡槽最大高度9.6米,单槽重达1200吨。当初,工程师们将水利渡槽通过已架设好的渡槽槽顶运输过来,就这样一段接一段地筑造出沙河渡槽,它也是世界上首座 “槽上运槽”的渡槽。

  这滴水继续向北奔腾,在河南郑州又被黄河拦住了去路。要穿越黄河,就要在黄河北岸建造内径16.4米、井深50.5米的巨大圆筒形竖井。将盾构机放入这个相当于15层高楼的竖井里,向南岸一次性平挖3450米,调整姿态后,抬头向上掘进800米,一共前进挖掘4250米,打造出一条隧洞。这滴水就是通过这样的两条隧洞,跨越黄河天堑,继续北上。从陶岔渠首枢纽历经1432公里的路途,它沿着蜿蜒的水路,穿越崎岖的地势,最终抵达北京和天津。来到北京后,通过五棵松地铁隧道下方3.67米的隧洞,沿着深埋地下的管道,穿梭于城市的每个角落。

  (总台央视记者 王琰 梁丽娟 张琪 张昊)

发布于:黑龙江省哈尔滨南岗区
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