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首页> 外文期刊>Proceedings of the Institution of Civil Engineers. Geotechnical Engineering >Estimating volume loss for open-face tunnels in London Clay
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Estimating volume loss for open-face tunnels in London Clay

机译:估算伦敦粘土露天隧道的体积损失

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摘要

A modification to the load factor approach to estimating undrained volume loss for open-face tunnelling in London Clay is proposed. The modified approach is based on the nature of ground movement observed during construction of the Jubilee Line Extension at St James's Park and Elizabeth House for different stages of open-face shield tunnel construction and tunnelling using sprayed concrete linings, described in a companion paper. The new approach is shown to provide good estimates of the volume loss observed for open-face shield tunnelling in London Clay at Green Park and Regents Park.
机译:提出了对荷载因子方法的一种改进,以估算伦敦粘土露天隧道的不排水体积损失。修改后的方法基于在圣詹姆斯公园和伊丽莎白大厦举行的禧年线延长线施工过程中观察到的地面运动性质,该施工过程针对露天盾构隧道施工和使用喷涂混凝土衬砌的隧道施工的不同阶段,如随附文件所述。事实证明,这种新方法可以很好地估计在Green Park和Regents Park的London Clay中进行裸露盾构隧道施工所产生的体积损失。

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