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港珠澳大桥海底隧道贯通 提前穿越“海底巨龙”

2017-07-07 09:54:50   中国网

换乘中交港珠澳大桥岛隧项目部的电瓶车,我们来到西人工岛东头,这里是海底隧道暗埋段,也即海底隧道的西侧起点。沿着暗埋段继续前行,缓缓下降,我们便进入了海平面以下四五十米的海底沉管隧道内部。

一进入隧道内部顿觉凉爽。想起置身伶仃洋海底,四周被各种鱼类乃至中华白海豚包围,一瞬间有一种梦幻感。尽管身处海底,但隧道内部感觉不到一丝潮湿气息。这是建设者们最引以自豪的地方:这条世界上难度最高的海底沉管隧道,建设者们做到了“滴水不漏”。

因为有送风系统,车辆继续前行,也不觉得憋闷。这和隧道双向六车道的宽敞空间颇有关系。建设者告诉我们,此前国内外的海底隧道,大部分是双向四车道,在复杂海况和深埋条件下,建设双向六车道的巨型沉管隧道,这是港珠澳大桥的又一创举。

沿着海底隧道一路向东,33节巨型沉管之间的钢封门已全部拆除,一路畅通无阻。不过沿路都是建设者们忙碌的身影。他们正在加紧铺设路面沥青,同时安装防火板、中管廊、支架、盖板、装饰板等。别看如今隧道里光线不好,颜色单调,等装饰工程完成后可是非常高大上。

仅用时不到十分钟,我们便驱车走完了海底隧道全程,从东人工岛上的暗埋段穿出。

(▲正在建设中的东人工岛)

同样是一个蚝贝形的岛屿,东人工岛和西人工岛的功能定位不同:西岛以桥梁的养护服务及办公为主;东岛则拟建设集交通、管理、服务、救援和观光功能为一体的综合运营中心,且开放游客观景揽胜功能。

(▲东人工岛效果图)

“我们正在建设的岛上建筑上面三层,都是留作商业用途。”建设者告诉发布君,不久的将来,旅客乘车经过此处,不仅能在东岛停下车驻足欣赏360度无敌海景,甚至有可能在岛上的咖啡厅里来上一杯咖啡,“运气好的话,还能邂逅‘海上大熊猫’中华白海豚呢!”

责任编辑:陈倩 CN030
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