摘要: Modern tunnelling methods aim to reduce ground movements arising from the construction process. In clay strata usual method of is by tunnel boring machine, which allows close control process; however, any have potential cause damage existing structures at, and below, surface. The underground rail systems often comprises two tunnels running in opposite directions. Common practice for assessing construction-generated around these make predictions based upon individual utilise superposition generate a total deformation profile. This approach does not take into account strain- or stress-dependent effects between constructions. A delay may result unanticipated generated second tunnel. effect this on first process was investigated ...
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