世界最大直径水下盾构隧道贯通|成年免费视频黄网站在线观看
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中新社济南8月17日电 (何天琦)17日,随着开挖直径达17.5米的“山河号”盾构机刀盘破洞而出,山东济南黄岗路黄河隧道盾构段完成掘进。这一世界最大直径水下盾构隧道的贯通,标志着中国水下隧道建设领域迎来里程碑式突破。
济南黄岗路黄河隧道全长约5.75公里,其中盾构段长约3.3公里,设计时速60公里,采用单洞双层隧道布置,是中国首条穿黄单洞双层盾构隧道。该隧道施工采用的“山河号”泥水平衡盾构机,为世界在建最大直径泥水平衡盾构机。
中铁十四局黄岗路黄河隧道项目部现场负责人周祥介绍,针对黄河之下的复杂地质条件,项目团队为“山河号”盾构机创新应用大开口率带压复合型刀盘,装配伸缩式主驱动、开挖仓伸缩摄像头等先进装备,并搭载“五官一脑”智能化装备系统,构建起盾构掘进的“智慧大脑”,实现全流程感知、预警与智能决策。
中铁十四局黄岗路黄河隧道项目部总工程师高同矿介绍,济南黄岗路黄河隧道单洞上下设置六车道通行,可实现两洞隧道的交通功能,既节省地下空间,又减少约15%的投资。同时,创新设计4.2米净高,能满足公交、消防、管理及救援车辆的通行要求,极大提高通行能力。
以中国国家最高科学技术奖获得者、中国工程院院士钱七虎为组长的专家组指出,该隧道建造过程中高度智能化、机械化、绿色化技术的实施,将推动中国盾构隧道技术往前迈出一大步,其建成对中国水下交通隧道建设具有里程碑意义。
据悉,济南黄岗路黄河隧道是继“万里黄河第一隧”——济南黄河济泺路隧道后又一连接南北向的大通道。隧道建成后,将进一步促进济南拥河发展,加强黄河南北两岸的经济交流与合作。(完)
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