نتایج جستجو برای: Tehran subway line 7

تعداد نتایج: 1042866  

ژورنال: Journal of Railway Research 2018
Esfandiari Mehni, Reza, Hadizadeh Raisi , Ebrahim, Astaraki , Farshad , Gharouni Nik, Morteza,

Due to the development of urban subway lines in order to extend public transportation and to accommodate the increased number of trains, depot and parking are necessary. This is to provide a space for parking trains in non-operating hours and to carry out maintenance and repair operations on trains. Subway depot is a predetermined space where trains, washing, car parks, and refueling work are p...

Technological progress in tunneling has led to modern and efficient tunneling methods in vast underground spaces even under inappropriate geological conditions. Identification and access to appropriate and sufficient geological hazard data are key elements to successful construction of underground structures. Choice of the method, excavation machine, and prediction of suitable solutions to over...

Journal: :مهندسی تونل و فضاهای زیر زمینی 0

numerical analysis of longitudinal and transverse surface settlement induced by epb tunneling- a case study: shiraz subway tunnels reza rahmannejad; mahdi esfandiary; eshagh namazi; hamed jamshidi             determination of the racking reduction factor for an incomplete ellipse shaped tunnel considering the soil-structure interaction mohammad reza momenzadeh; mohammad reza mansoori; armin azi...

Chalak, Mohammad Hossein , Khandan, Mohammad , Rostamzadeh, Sajjad , Sarvari, Kourosh , Vosoughi, Shahram ,

Introduction: Safety is a significant part of the public transportation. Suitable safety climate has a positive effect on safety performance and reduces accidents rate. The aim of this study was investigating safety climate status of Tehran subway drivers in 2013. Material and method:  The present study was a descriptive and cross-sectional study. In this study, statistical population was all ...

ژورنال: سلامت کار ایران 2014

  Background and a ims: Subway system including infrastructure systems in the transportation industry can potentially exposed to fire, flood, earthquake and similar events and could create catastrophic losses to society. Therefore, this study aims to assess the risk of fire in Tehran subway stations (line 1).   Methods: Inperforming this research, after the identifying the fire hazard resources...

Nowadays, satellite radar interferometry method plays an important role in calculating natural and artificial displacements, including displacements caused by floods, earthquakes, landslides, drilling of unauthorized wells, drilling of urban tunnels, etc. Metro tunneling is very important due to the importance of preventing irreparable financial and human losses. In Tehran, especially due to th...

2018
A. Shirzadi Babakan A. Alimohammadi M. Taleai

Changes in travel modes used by people, particularly reduction of the private car use, is an important determinant of effectiveness of transportation plans. Because of dependencies between the choices of residential location and travel mode, integrated modeling of these choices has been proposed by some researchers. In this paper, an agent-based microsimulation model has been developed to evalu...

Journal: :geopersia 2014
mohammad reza baghban golpasand mohammad reza nikudel ali uromeihy

ground settlement due to the shallow tunneling in urban areas can have considerable implications for aboveground civilinfrastructures. engineering geological characteristics of the tunnel host ground including geotechnical parameters of surrounding soil,groundwater situation, and in situ stress condition are amongst the most important factors affecting settlement. in this research, groundsettle...

1997
Saker M.

The regulation of the subway line traffic is a domain where human controllers must deal with a huge quantity of knowledge pieces more or less implicit in the regulation itself. When an incident occurs on a subway line, the operator--the controller who has currently the responsibility of the subway line--must choose the best strategy to apply for moving from the incidental context to the operati...

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