TY - JOUR T1 - Application of probability analysis in assessing optimal depth of 2nd line of Mashhad city subway. TT - کاربرد آنالیز احتمال در تعیین عمق بهینه تونل خط دوم قطار شهری مشهد. JF - jeg JO - jeg VL - 10 IS - 1 UR - http://jeg.khu.ac.ir/article-1-1888-en.html Y1 - 2016 SP - 3287 EP - 3308 KW - Soil settlement KW - Liquefaction KW - Elastic displacement KW - Safety Factor (SF) KW - Probability analysis N2 - In tunnelling in soil mass, in groundwater existing mode, liquefaction, elastic displacements and settlement in soils upon the tunnel, are the risks may attack the excavated underground space stability. In this case study that were performed on second line of Mashhad city subway route, information catched from Standard Penetration Test, in situ and laboratorial tests, were used to optimum numerical values search for soil engineering parameters that could optimize the TBM stationing level. In order to this goal attaining, intelligent, numerical and probabilistic methods were used and the reliability of intelligent and numerical methods with the Safety Factors of tunnel stability, investigated simultaneously. The results were denoting the accordance of intelligent models such as Genetic Algorithm (GA) and Multi objective Genetic Algorithm with Finite Element model's output. So these models could be complement of each others in planning and designing of tunnels and using of them advised in tunneling and excavations. M3 10.18869/acadpub.jeg.10.1.3287 ER -