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1)  super large diameter shield
超大直径盾构
1.
This paper presents an operating method of on the spot turn-around of a super large diameter shield machine which after break-in,ought to be turn-around,translated and returned for a second boring in opposite direction,in sharp contrast to the convention- al handling of disassembly after break-in,then lift-off and re-assembly of the shield for a second boring.
本文介绍了超大直径盾构机进洞后,在工作井内原地调头及平移后重新恢复掘进的施工方法。
2)  extra-large shield-driven tunnel
超大直径盾构隧道
3)  super-large diameter slurry shield
超大直径泥水盾构
4)  larger diameter shield machine
大直径盾构
5)  large-diameter slurry shield
大直径泥水盾构
1.
Based on the shield boring of the exit section of Shiziyang tunnel on Guangzhou-Shenzhen-Hongkong passenger-dedicated railway,the authors present the selection and optimization of the boring parameters,the control measures,boring process,difficulties and the countermeasures of the large-diameter slurry shield in water-rich soft ground with shallow cover.
结合新建广深港铁路客运专线狮子洋隧道工程出口段的盾构施工,介绍富水软弱地层浅埋大直径泥水盾构掘进参数选择与优化、控制措施、施工过程及重难点、常见问题及处理措施。
6)  large-diameter shield segment
大直径盾构管片
1.
The paper in detail introduced the key points of production technology quality control of the large-diameter shield segment, Combining with production technology of large-diameter and large volume segment Shield in the Nanjing Yangtze River Tunnel project, and provided specific control measures and solutions for key process quality control.
本文结合南京长江隧道工程大直径、大体积盾构管片的生产工艺,比较详细的介绍了大直径盾构管片的生产工艺中的质量控制要点,并针对关键工序质量控制提出了具体的控制措施及解决方案。
补充资料:当量比表面直径、表面积体积平均直径
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性质:又称当量比表面直径、表面积体积平均直径。是颗粒群表面积分布的平均直径。其意义为与颗粒群的粒形相同,总体积相同、总表面积相同,且粒度均匀的一个假想颗粒群的粒度。亦即指与该颗粒群的粒形相同,比表面积相同的一个颗粒的粒度。 

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