唐少辉, 张晓平, 刘浩, 等.2021.复杂地层水下盾构隧道工程难点及关键技术研究与展望[J].工程地质学报, 29(5): 1477-1487. doi: 10.13544/j.cnki.jeg.2020-044.
    引用本文: 唐少辉, 张晓平, 刘浩, 等.2021.复杂地层水下盾构隧道工程难点及关键技术研究与展望[J].工程地质学报, 29(5): 1477-1487. doi: 10.13544/j.cnki.jeg.2020-044.
    Tang Shaohui, Zhang Xiaoping, Liu Hao,et al. 2021. Engineering dificulties and key technologies for undervater shield tunnel in complex ground [J]. Journal of Engineering Geology, 29(5): 1477- 1487. doi: 10. 13544/j.cnki.jeg.2020-044.
    Citation: Tang Shaohui, Zhang Xiaoping, Liu Hao,et al. 2021. Engineering dificulties and key technologies for undervater shield tunnel in complex ground [J]. Journal of Engineering Geology, 29(5): 1477- 1487. doi: 10. 13544/j.cnki.jeg.2020-044.

    复杂地层水下盾构隧道工程难点及关键技术研究与展望

    ENGINEERING DIFFICULTIES AND KEY TECHNOLOGIES FOR UNDERWATER SHIELD TUNNEL IN COMPLEX GROUND

    • 摘要: 国家经济一体化需求推动了城市交通网络的蓬勃发展,众多水下盾构隧道工程应运而生。特别是进入21世纪以来,一系列长距离越江跨海隧道的建成和投运标志着我国水下盾构施工成套关键技术取得了显著进步。为促进复杂困难地层盾构掘进技术发展,推动越江跨海隧道施工效率提升,本文以近年来已建和在建的代表性大型水下隧道工程为研究对象,从隧道地质环境、盾构施工技术、工程项目管理等多个角度出发,概述了南京长江隧道、济南黄河隧道、南京地铁10号线越江隧道、苏通GIL综合管廊工程、厦门地铁2号线海底隧道等长距离高水压盾构隧道的工程问题和技术难点,梳理了高磨蚀性砂卵石地层、高黏粒粉质黏土地层、高水压强渗透性地层、江底富含沼气地层、海域密集孤石群地层等复杂地质条件下的水下隧道施工成套关键技术,分析了越江跨海隧道工程地质环境复杂化、盾构设备多样化、掘进施工智能化的未来发展趋势。相关研究成果可为后续复杂地质条件下水下盾构隧道工程的勘察、设计、施工等提供理论依据和技术支撑。

       

      Abstract: Chinese economic integration promotes the rapid development of urban transportation networks. Many underwater shield tunnels were constructed in recent years. Since the 21st century,the completion of a series of long distance and large diameter cross-river(or cross-sea) tunnels has marked the great progress of construction technologies for underwater tunnels. In order to promote the development of tunneling technology in complex ground and improve the construction efficiency of cross-river (or cross-sea)tunnels,the present study takes the recently constructed and representative underwater tunnels as research subjects and analyzes tunnel geological environment,shield tunneling technology and construction project management. Firstly,engineering difficulties and technical challenges for long distance shield tunnels under high water pressure are presented. These tunnels include the Nanjing Yangtze River Tunnel,Jinan Yellow River Tunnel,Nanjing Metro Line 10 Crossing River Tunnel,Sutong GIL Yangtze River Crossing Cable Tunnel and Xiamen Metro Line 2 Subsea Tunnel. Then,construction technologies for underwater tunnels in complex geological conditions are summarized. The conditions include abrasive sandy cobble ground,cohesive silty clay ground,high water pressure and permeable ground,underwater gas-rich ground and undersea dense boulder group ground. Finally,development trends of cross-river (or cross-sea)tunnels are prospected. They include the complexity of engineering geology,the diversification of shield equipment and the intelligentization of tunnel construction. The present study provides theoretical basis and technical support for the survey,design and construction of underwater shield tunnels under complex geological conditions in the future.

       

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