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Effects of twin tunnel undercrossing excavation on the operational high speed railway tunnel with ballastless track

Jinyang Fu,Ningning Zhao,Yong Qu,Junsheng Yang,Shuying Wang

Tunnelling and Underground Space Technology（2022）

Cited 7|Views1
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Abstract
•Control standard is proposed for tunneling undercrossing high speed railway tunnel.•Method for modelling the effect of existing tunnel construction joint is developed.•The presence of construction joint reduces the shielding effect of existing tunnel.•Relative positions affects interaction between construction joints and new tunnels.
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Key words
High speed railway tunnel,Shield twin-tunnel,Construction joint,Control criterion,Ground settlement,Lining stress
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