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Analysis on ground surface deformation induced by the subway double tunnels construction

Authors: null Wu Yan-kai; null Gu Ming-fen;

Analysis on ground surface deformation induced by the subway double tunnels construction

Abstract

The relative position change of metro double tunnels and construction of the sequence will induce the surface deformation and the interaction of the tunnel lining. It is more concerned about these issues in tunnel design. In this paper, It is the main purposes to analyze the metro double tunnels surface deformation which induced by the position changes of new construction double and the sequence of construction. From the numerical simulating results, in order to reduce surface deformation and ensure the structural safety over the subway tunnel, it should try to make double-tunnels at the same horizontal plane in design. If the double tunnels could not be located at the same horizontal plane, the double-hole tunnel construction sequence of the deformation of the surface subsidence effects are obvious it is obvious that the double tunnels construction sequence differently make the deformation of the surface subsidence. To reduce the deformation of the surface subsidence, it should be first excavated the shallow tunnels and then excavated the tunnel buried deeply. The ideal distance of the double tunnels center is greater than 4 times the tunnel diameter. It can make the surface subsidence reduce to the minimum during the metro tunnel construction.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
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