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揭三峡工程最后“谜底”:轮船可这样过大坝

2016-09-16 10:45:17   央视

2016年7月6日,湖北省宜昌市三峡大坝的三峡升船机外景。

18日,三峡工程最后的“谜底”即将揭晓!据三峡海事局航行通告,三峡升船机将于18日进入试通航阶段,这意味着,以后船舶要翻越三峡大坝,可以“坐电梯”了!

“坐电梯”翻大坝技术、规模创世界之最

三峡升船机与三峡双线五级船闸同为三峡工程通航建筑物,具有提升高度大、提升重量大、上游通航水位变幅大、下游水位变化速率快的特点,是目前世界上技术难度和规模最大的升船机。

提升重量和高度均为世界之最

三峡升船机承船厢可载3000吨级船舶,最大爬升吨位达1.55万吨,最大爬升高度113米。提升重量和高度,均为世界之最。

全球规模最大、技术难度最高

三峡升船机全线总长约5000米,船厢室段塔柱建筑高度146米,最大提升高度为113米、最大提升重量超过1.55万吨,承船厢长132米、宽23.4米、高10米,可提升3000吨级的船舶过坝。这些数据都显示了三峡升船机是世界上规模最大、技术难度最高的升船机工程。

过坝时间从3.5小时缩短为40分钟

三峡升船机承载船型的设计定位主要适应3000吨级大型客轮、旅游船,及部分运送鲜活快速物资货船。运营后,这类船舶过坝时间将由现在通过永久船闸的3.5小时缩短为约40分钟。投入运行后,三峡升船机将为客货轮和特种船舶提供快速过坝通道。

船舶怎么“坐电梯”?

假如船舶要从大坝下游驶向上游——

首先船舶驶入承船厢,关闭承船厢下游闸门。

承船厢通过爬升装置上升,直到承船厢内水位与上游水库水位齐平。

打开承船厢上游闸门,船舶驶出承船厢进入上游航道。

船舶从上游向下游行驶,与其过程相反。

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