3D Analytical Solution of Soil Deformation Induced by Shield Tunnelling Construction

Abstract:

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Three-dimensional (3D) analytical solution of soil deformation induced by ground loss in shield tunnelling construction was researched. It is put forward that the ground loss ratio is not a fixed value, but changes in driving direction. The calculation formula of ground loss ratio in driving direction was deduced. Based on two-dimensional (2D) analytical solution of uniform ground movement model of shield tunnelling, the three-dimensional analytical solution of ground deformation induced by ground loss is deduced. The settlement in vertical direction and the displacement in lateral horizontal direction at any point can be calculated; and the method is only applied to the construction phase. In analytical calculation: the predicted soil displacements are in good agreement with the measured values, and the method is easy to use; the closer the soil to tunnel is, the faster the lateral horizontal displacement changes; the extent of change of lateral horizontal displacement in longitudinal direction is smaller than displacement in lateral direction.

Info:

Periodical:

Advanced Materials Research (Volumes 261-263)

Edited by:

Jingying Zhao

Pages:

1814-1819

DOI:

10.4028/www.scientific.net/AMR.261-263.1814

Citation:

G. Wei et al., "3D Analytical Solution of Soil Deformation Induced by Shield Tunnelling Construction", Advanced Materials Research, Vols. 261-263, pp. 1814-1819, 2011

Online since:

May 2011

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Price:

$35.00

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