Calculation method for displacement deformation of existing tunnel caused by concentrated loads in tunnel
A concentrated load, existing tunnel technology, applied in tunneling, calculation, computer-aided design, etc., can solve the problem of inability to calculate the rotation and staggered deformation of shield tunnels, without considering the effect of segment ring joints, and less research on displacement deformation calculation And other issues
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[0088] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid in the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
[0089] This calculation method introduces a “shear stagger model” that considers rotation and staggering at the same time. It is considered that relative staggering and relative rotation angles will occur between adjacent segments at the same time, and the two together lead to the longitudinal deformation of the tunnel. Through the selection of parameters, the derivation of the additional load formula, and finally the use of the "shear displacement model" to ca...
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