1) grouting at the tail
盾尾注浆
1.
Assuming that the back-filled grouts are Newtonian fluids,and the grouts diffuse with cylinder surface,the grouts diffusion radius and the pressure to shield tunnel segments in case of grouting at the tail as well as through segments,are studied by substituting the intrinsic void percent with the equivalent void percent of the soil to consider the influence of construction gap.
在假定注浆浆液为牛顿流体,并在盾尾间隙影响厚度范围内均匀柱面扩散的前提下,通过引入等效孔隙率替代土体本身的孔隙率来考虑建筑间隙的影响,对盾尾注浆和管片注浆2种情况下的浆液渗透范围及因注浆而对管片造成的压力进行了理论推导,得到了浆液扩散半径及对管片产生的压力计算式。
2) synchronized pouring at the back of shield
盾尾同步注浆
3) shield tail
盾尾
1.
Due to the features of the project exhibiting "long distance,large diame- ter,and high water pressure",this article probes into the design of cutterdisc,main bear- ing seals,and shield tail in the aspects of its safety,and reliability for the benefits of pro- viding reference for similar projects hence forth.
由于工程具有"长距离、大直径、高水压"的特点,重点对盾构机的刀盘、主轴承密封和盾尾等安全和可靠性设计方面进行了探讨,便于同类工程借鉴。
4) tail selection
盾尾选型
1.
Scientific tail selection of the shield machine is pivotal for safe and rapid construction in large-diameter and long-distance tunneling.
以广深港客运专线狮子洋隧道为例,从盾尾结构和油脂选择,详细论述了盾尾选型技术,为同类工程提供了可借鉴之依据。
5) tail brush
盾尾刷
1.
Up to now there has been no work example or experience yet on maintenance and repair or replacement of tail brush during shield tunnelling in this country,especially relating to damage prone to fatigue caused by abrasion with segments in a long time run- ning.
目前国内盾构盾尾刷尚无在施工过程中进行检修和更换的施工实例和经验,其中盾尾密封刷由于长时间的同管片之间摩擦易疲劳破坏,因此开展对长距离隧道施工中的检修技术的研究,特别是江底下的盾构盾尾刷检修环境设计与施工技术研究是十分必要的。
6) tail grease
盾尾油脂
1.
43m shield machine that is now tunnelling through the Changjiang Estuary for the cross-river link,and is going to offer the tail grease used during its tests,as a rec- ommendatory option for the Contractor s choice.
43m 盾构现有盾尾密封装置的可靠性和安全性,并将试验用盾尾油脂材料供施工单位参考选用。
