DAI Xiao-ping, GUO Tao, QIN Jian-she. Research on minimum depth burial of shield tunnel machines crossing over ground base under rivers[J]. 2006, 27(5).
DAI Xiao-ping, GUO Tao, QIN Jian-she. Research on minimum depth burial of shield tunnel machines crossing over ground base under rivers[J]. 2006, 27(5).DOI:
It is very important for the tunnel lining to determine the earth covering thickness as the rising force when the shield tunnel machine crosses over the ground base under rivers
lakes the sea
and so on. The authors bring forward a new method to calculate the earth covering thickness of the tunnel lining .The new method takes into account of the shearing strength of the soil that can resist the rising force
while the conventional method doesn’t consider that. The new method is more practical than the conventional method according to the computation in the case study. Finally
the authors analyze the stress and strain in the shallow earth covering by FEM; the result proves that the new method is more reasonable.