Numerical simulation of the effect of cross passage excavation on surface settlement
Numerical simulation of the effect of cross passage excavation on surface settlement
The construction of cross passages, which are connecting structures between two adjacent tubes or between a tube and a ventilation shaft causes in most of the cases deformations in the main tunnel lining as well as in the soil surface. In this paper, we will investigate the effect of excavating a cross passage on the main tunnel, by simulating the excavation of the two galleries separately in 2D and 3D using the CESAR LCPC calculation code, and comparing the results with the 3D numerical model that combines the two galleries.
Ibtissem Siad; M. Akchiche
18th African Regional Conference on Soil Mechanics and Geotechnical Engineering (ARCSMGE2024)
Behavior of soils, analysis and modeling
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