| 高水压大直径盾构隧道刀盘配置与刀具更换关键技术 |
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| 引用本文： | 陈健,薛峰,苏秀婷,陆瑶,刘涛.高水压大直径盾构隧道刀盘配置与刀具更换关键技术[J].隧道建设,2020,40(7):1057-1065. |
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| 作者姓名： | 陈健 薛峰 苏秀婷 陆瑶 刘涛 |
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| 作者单位： | (1. 中国海洋大学环境科学与工程学院， 山东 青岛 266100； 2. 中铁十四局集团有限公司， 山东 济南 250014) |
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| 基金项目： | 国家自然科学基金（高铁联合基金U1834208） |
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| 摘 要： | 为系统总结大直径水下盾构刀盘配置与刀具更换先进技术，结合典型的水下大直径盾构隧道施工案例，分析不同地层刀具切削机制，阐述不同高水压复杂地层大直径盾构刀具配置技术。针对江底高水压、强透水、不稳定等特点，介绍常压刀盘刀具更换和带压开舱技术等。最后，提出在建及拟建的大直径盾构隧道工程中需要深入研究及探索的技术难题。
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Key Technologies of Cutterhead Configuration and
Cutter Replacement forLarge diameter
Shield under High Water Pressure |
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| CHEN Jian,XUE Feng,SU Xiuting,LU Yao,LIU Tao.Key Technologies of Cutterhead Configuration and
Cutter Replacement forLarge diameter
Shield under High Water Pressure[J].Tunnel Construction,2020,40(7):1057-1065. |
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| Authors: | CHEN Jian XUE Feng SU Xiuting LU Yao LIU Tao |
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| Institution: | (1. School
of Environmental Science and Engineering, Ocean University of China, Qingdao
266100, Shandong, China；
2.
China Railway 14th Bureau Group Co.,
Ltd., Jinan 250014,
Shandong, China) |
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| Abstract: | In this paper, the cutting mechanism of shield cutter
in different strata is analyzed based on case study of typical large diameter
underwater shield tunnel projects, the cutter configuration technology of large diameter shield in different complex strata with high water pressure
are introduced, and the advanced technologies of shield cutterhead
configuration and cutter replacement for underwater large diameter shield are systematically summarized. And then, based on
the characteristics of river bottom, i.e. high water pressure, strong water
permeability and instability, the technology of cutter replacement under
atmospheric pressure and chamber opening under pressure is introduced. Finally,
some technical issues of large diameter shield tunnel
projects under construction and planning which should be deeply studied are put
forward. |
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| Keywords: | |
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