日本巨大地下排水系统

anonymous-104337  08/17   4071  
4.0/1 

https://s3b.pstatp.com/growth/mobile_detail/image/toutiaoicon_loading_textpage@3x_f7c130ce.png); background-size: 40%; font-family: PingFangSC, STHeiti, 'Microsoft YaHei', Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; width: 347px; min-height: 230.971875px; background-position: center center; background-repeat: no-repeat no-repeat;">探秘日本巨大地下宫殿

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看上面这些图,你觉得这是哪里?

https://s3b.pstatp.com/growth/mobile_detail/image/toutiaoicon_loading_textpage@3x_f7c130ce.png); background-size: 40%; font-family: PingFangSC, STHeiti, 'Microsoft YaHei', Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; width: 347px; min-height: 461.04895104895104px; background-position: center center; background-repeat: no-repeat no-repeat;">探秘日本巨大地下宫殿

https://s3b.pstatp.com/growth/mobile_detail/image/toutiaoicon_loading_textpage@3x_f7c130ce.png); background-size: 40%; font-family: PingFangSC, STHeiti, 'Microsoft YaHei', Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; width: 347px; min-height: 462.39578454332553px; background-position: center center; background-repeat: no-repeat no-repeat;">探秘日本巨大地下宫殿

上世纪5、60年代,日本经济进入高速发展期,但城市基础建设的速度却跟不上经济发展的步伐,泄洪排水系统的不完善让东京地区尝尽了苦头,每当遇到突如其来的强降雨,东京都会变成一片汪洋。

https://s3b.pstatp.com/growth/mobile_detail/image/toutiaoicon_loading_textpage@3x_f7c130ce.png); background-size: 40%; font-family: PingFangSC, STHeiti, 'Microsoft YaHei', Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; width: 347px; min-height: 234.7671875px; background-position: center center; background-repeat: no-repeat no-repeat;">探秘日本巨大地下宫殿

因此,日本在1992年决定开始建设巨型分洪工程,“首都圈外郭放水路”。出现暴雨时,城市下水道系统将雨水排入中小河流,中小河流水位上涨后溢出进入排水系统的巨大立坑牙口管道。前4个竖井里导入的洪水通过下水道流入最后一个竖井,集中到长177米、宽78米的巨大蓄水池调压水槽,缓冲水势。

文章一开始的图片不是神社,不是祭祀斋场,是日本首都圈外环地下排水设施。位于琦玉县境内地下50米处,全长6.4公里的首都圈外郭放水路是东京地区的大型排水系统之一。这么巨大的地下空间是什么样子的呢?小编今天就带您揭开它神秘的面纱。

https://s3b.pstatp.com/growth/mobile_detail/image/toutiaoicon_loading_textpage@3x_f7c130ce.png); background-size: 40%; font-family: PingFangSC, STHeiti, 'Microsoft YaHei', Helvetica, Arial, sans-serif; font-style: normal; font-variant-caps: normal; width: 347px; min-height: 326.0603448275862px; background-position: center center; background-repeat: no-repeat no-repeat;">探秘日本巨大地下宫殿

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(地下宫殿入口)

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(从下往上看)

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(人显得如此渺小)

地下宫殿蓄水池由59根长7米、宽2米、高18米、重500吨的混凝土巨柱撑起,以防止蓄水池在地下水的推力下上浮。4台由航空发动机改装而成的燃气轮机驱动的大型水泵,单台功率达14000马力,将水以200立方米/秒的速度排入江户川,最终汇入东京湾。蓄水池除了储备重油燃料外,还设置了自主发电机。即使发生停电,四台发动机也可以满负荷运转三天。

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排水系统全程使用计算机遥控,并在中央控制室进行全程监控。其排水标准是“五至十年一遇”的巨大台风和强降雨,如果在满效率排水的状态下,这条混凝土浇筑的地下激流可至水深60米。

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(蓄洪立坑)

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(蓄洪立坑)

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(控制中心)

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(立坑容量可以放下一架航天飞机)

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这项工程曾被誉为世界最先进的排水系统,同时也被作为一个旅游景点,不定时开放,可以免费参观。通常周二到周五开放,一天三个场次,一次限定25人。有很多影视作品曾在此取景,此外,这里还设有地下探险博物馆“龙Q馆”,让人们了解地下设施、洪水等相关知识。