Purpose. This work aims to study the tunnel face stability (Algiers subway Tunnel) and evaluate common numerical procedures that are used for analyzing stability. Two-dimensional (2D) three-dimensional (3D) Finite Element (FE) modeling using PLAXIS programs. Methodology. Tunneling is executed by NATM method; two types of calculations used. The first one done reducing applied pressure until coll...

slope stability analysis is a geotechnical engineering problem characterized by many sources ofuncertainty. in slope stability computations, some of these sources are encountered, such as geologicaldetails missed in the exploration program, estimation of soil properties that are difficult to quantifyand many other relevant factors. therefore, accurate reproduction of the spatial variability in ...

Engineering structures are of great importance in the comfort and safe travel people who prefer highway existing transportation networks. Highway tunnels one most important engineering that easily overcome problems. This study investigates geological geotechnical Kırık tunnel on Erzurum-Rize route, makes rock mass classification required for excavation according to New Austrian Tunneling Method...