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社评“美国人与善XxZ000”-梳理天下新闻

中国最大直径敞开美国人与善XxZ000式岩石隧道掘进机下线

来源: 云南日报
2024-11-23 12:57:31

最佳回答

“美国人与善XxZ000”中国最大直径敞开美国人与善XxZ000式岩石隧道掘进机下线

  中新美国人与善XxZ000社长沙11月22日电 (向一鹏美国人与善XxZ000 胡清)一台开挖直径达11.93米的岩石隧道掘进机22日在长沙下线,将应用于南水北调中线引江补汉工程。这是迄今中国最大直径敞开式岩石隧道掘进机。

  这台掘进机取名为“江汉新石器号”,整机长约175米,总重约3000吨,设计最小转弯半径800米,适应最大坡度10%,可完成隧洞开挖出渣、支护、导向、材料运输等全套作业。它由中国铁建重工集团、中国水利水电第六工程局联合打造。

11月22日,“江汉新石器号”岩石隧道掘进机在长沙下线。汤叶 摄

  引江补汉工程沿线地质条件复杂,具有埋深大、线路长、洞径大、断层多等特点,面临强岩爆、有毒有害气体等多重施工挑战,是中国长距离有压引调水工程中单洞最长、洞径最大、综合难度最高的隧洞。

  铁建重工掘进机研究设计院工程师张强介绍,针对项目施工风险和难点,研制团队通过创新攻关,采用小间距、大范围扩挖刀盘、钢拱架和钢管片双支护、主驱动防涌门等设计,通过配置双速比大扭矩减速机等系统,提高掘进机针对不良地质的适应能力;配置钢拱架运输与喂送系统、遥控式清渣等设备,降低施工劳动;配置智能掘进系统、围岩信息采集、超前探测系统等多项智能化技术,为工程智能监造提供强有力的支撑。

  据悉,引江补汉工程是南水北调“四横三纵”工程体系的重要组成部分,是构建国家水网主骨架和大动脉的关键,建成后有利于促进南水北调中线工程效益发挥。(完)

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