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Prethodno priopćenje

https://doi.org/10.14256/JCE.2119.2017

Use of finite element method for 2D and 3D analyses of tunnelling induced settlements


Puni tekst: hrvatski pdf 247 Kb

verzije

str. 673-680

preuzimanja: 192

citiraj

Puni tekst: engleski pdf 233 Kb

verzije

str. 673-680

preuzimanja: 225

citiraj


Sažetak

Results of a series of 3D and 2D analyses of open-face tunnelling in marly-clayey deposits are presented in the paper. A parametric study was performed to investigate the influence of initial stress state, soil deformability, shear strength parameters, and soil anisotropy, on settlement prediction. Comparison of 2D and 3D results shows that the settlement trough predicted by 2D analysis agrees well with 3D results when an appropriate amount of unloading prior to lining installation is adopted. It is demonstrated that the load reduction factor significantly depends on shear strength parameters of soil.

Ključne riječi

tunnel; settlement; 3D FE analysis; stress reduction method

Hrčak ID:

244553

URI

https://hrcak.srce.hr/244553

Datum izdavanja:

21.9.2020.

Podaci na drugim jezicima: hrvatski

Posjeta: 922 *