得出了此座引水隧洞一、二次衬砌的内力情况。
And derived the internal force of the first and second lining of the diversion tunnel.
二次衬砌顶部脱空已成为比较严重的隧道质量通病。
The separation on the top of secondary liner is one of the common failures of tunnel.
采用荷载结构法对二次衬砌进行了长期安全性评估。
Load structure method was used for the lining of the secondary support's long-term safety assessment.
而二次衬砌直接关系到开挖断面的大小和工程造价。
But it is directly related to the excavation of the size and project cost.
但对于二次衬砌的厚度、是否需要配筋的看法则有很大的不同。
However, the thickness or the need for reinforcement of view to the secondary lining is very different.
某隧道在完成二次衬砌后，软弱地基产生不均匀沉降致使边墙严重开裂。
The seriously uneven settlement of soft ground causes tunnel wall crack after the completion of permanent tunnel lining.
在山岭隧道施工中，二次衬砌混凝土裂缝成为带有一定普遍性的质量问题。
In the mountain tunnel construction, the secondary lining concrete crack is a certain universal quality problem.
本文的主要研究内容为隧道二次衬砌混凝土配合比优化设计及其结构内力分析。
The main studying contents of this thesis are optimization-design of the mixture ratio of tunnel's secondary lining concrete and internal structural analysis.
大拱隧道受结构和跨度的影响，其初期支护与二次衬砌各自承受不同的围岩压力。
The primary support and the second lining of large-spanned tunnel have endured different surrounding rock stress because of the influence of structure and span of tunnel.
大跨连拱隧道受结构和跨度的影响，其初期支护与二次衬砌各自承受不同的围岩压力。
As the large spanned arch tunnel is influenced by the structure and span, the loads on initial support and secondary lining are different.
首次建立了双连拱隧道二次衬砌内力（轴力和弯矩）模型及围岩的稳定与变形的规律。
The model of internal force for the secondary lining and the laws of the deformation and the stability for the surrounding rock have been set up firstly in the double-arch tunnel.
在经过对大量的检测数据的分析后，隧道二次衬砌厚度的检测要求可采用数理统计方法表达。
After pass through analyze a lot of fact checking data, tunnel lining concrete thickness require could express by probability statistic.
摘要：分析了青岛地铁3号线所在地域的环境作用，并对地铁二次衬砌混凝土的耐久性进行研究。
Abstract: the environmental effects are analyzed and the secondary lining concrete durability is studied in the design for Qingdao Metro Line 3.
隧道衬砌在浅埋段的结构荷载计算表明，复合式衬砌中的初期支护和二次衬砌一般要共同承担荷载。
The calculation of structural load on the lining of tunnel with shallow overburden shows that the load on composite lining will be shared by primary support and secondary lining.
结果表明，CRD法是该级围岩条件下的合理工法，同时给出了二次衬砌应滞后掌子面的合理距离。
The result indicates that the CRD method is the proper construction method on this condition and gives the proper distance between the second lining and the excavation face.
在双连拱隧道施工中，二次衬砌完成后表面往往会出现渗漏水现象，对双连拱隧道施工质量及营运造成影响。
Trickling water frequently occurs in the outside appearance of biconnected arch tunnels after the secondary lining, influencing their construction quality and operating.
根据乌鞘岭隧道岭脊地段地质状况和二次衬砌实际受力特点，采用拟地基曲梁计算法来分析二次衬砌的裂缝宽度与间距。
This paper discussed the calculation analysis of the secondary lining crack width and spacing by using simulating soil curved beam's stress.
二次衬砌所受荷载大小与其施筑时间有很大的关系，在设计和施工中要合理掌握二次衬砌所承担的荷载比例和以及施筑时间。
The magnitude of the load was affected by the construction duration. It is necessary to know the distribution of load and the construction duration when we design and construct such tunnels.
二次衬砌所受荷载大小与其施筑时间有很大的关系，在设计和施工中要合理掌握二次衬砌所承担的荷载比例和以及施筑时间。
The magnitude of the load was affected by the construction duration. It is necessary to know the distribution of load and the construction duration when we design and construct such tunnels.
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