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港珠澳大橋開(kāi)通，這10件事你要知道

2018-10-23 08:51來(lái)源：央視新聞

4、港珠澳大橋的科技含量有多高？

“超級工程”背后有“超級創(chuàng )新”。港珠澳大橋建設難度極大，新材料、新工藝、新設備、新技術(shù)層出不窮，僅專(zhuān)利就達400項之多，在多個(gè)領(lǐng)域填補了空白，造出了世界上最難、最長(cháng)、最深的海底公路沉管隧道。

世界最大規模鋼橋段建造、世界最長(cháng)海底隧道的生產(chǎn)浮運安裝、兩大人工島的快速成島等技術(shù)創(chuàng )下多項世界紀錄。

2017年7月7日，港珠澳大橋海底隧道正式貫通。圖為施工人員在港珠澳大橋海底隧道最終接頭處施工。（視覺(jué)中國）

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[責任編輯：施冰冰]

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