%0 Journal Article %A Haghkish, Hamed %A Mousavi Ghasemi, S. Arash %T Effect of excavation in geological structure and stability analysis of Tabriz Metro Line 2 tunnel boring machine entrance portal using the software FLAC %J Geographical Space %V 19 %N 68 %U http://geographical-space.iau-ahar.ac.ir/article-1-2209-en.html %R %D 2019 %K Shaft, slope stability, modeling, finite difference method, limit equilibrium method, sensitivity analysis, %X One of the main problems in the construction of development projects, in particular, the input shaft boring machines for mechanized tunnel construction projects in urban areas, study and soil slope stability of their suppliers. The slope stability analysis Find Confidence is the basis for sustainable economic trenches created and at the same time as it is. Most useful in analyzing such issues, numerical modeling of the attic and compare the results with actual measurements-is.Are %> http://geographical-space.iau-ahar.ac.ir/article-1-2209-en.pdf %P 1-13 %& 1 %! %9 case report %L A-10-2353-2 %+ Department of Civil Engineering ,Tabriz Branch, Islamic Azad University,Tabriz, Iran %G eng %@ 1735322X %[ 2019