نتایج جستجو برای: behesht abad tunnel project
تعداد نتایج: 284791 فیلتر نتایج به سال:
During construction of the Šentvid tunnel a unique opportunity arose to measure the 3D displacements ahead of the motorway tunnel excavation face, since the exploratory tunnel was already constructed in the axis of the main tunnel. According to reviewed literature such measurements had not been performed yet and several problems regarding equipment and complete scheme of the experiment needed t...
BACKGROUND The outcome of patients with acute type B aortic dissection (ABAD) is strongly related to their clinical presentation. The purpose of this study was to investigate predictors for mortality among patients presenting with ABAD and to create a predictive model to estimate individual risk of in-hospital mortality using the International Registry of Acute Aortic Dissection (IRAD). METHO...
The cross city tunnel in Sydney has been a fairly spectacular failure as a Public Private Partnership – the operating company has gone into receivership less than 2 years after the tunnel opening in August 2005. The tunnel, built at a cost of about $800 million failed to attract the traffic required to meet interest payments. Even when use of the tunnel was free, the traffic did not approach th...
NASA’s Synthetic Vision Systems (SVS) project is developing technologies with practical applications that will eliminate low visibility conditions as a causal factor to civil aircraft accidents while replicating the operational benefits of clear day flight operations, regardless of the actual outside visibility condition. A major thrust of the SVS project involves the development/demonstration ...
The research project “Bürgernahes Flugzeug” deals with the configuration of a future airplane with the properties of short take-off and landing and with reduced noise from the acoustic aspect. These properties should permit flight from a smaller airport closer to a city. In this project, under the cooperation of the main research partners: University of Braunschweig, German Aerospace Center (DL...
BACKGROUND The clinical profiles and outcomes of patients treated surgically for acute type B aortic dissection (ABAD) are often reported for those in small series or for those cared for at a single institution over a long time period, during which a continuous evolution in techniques has occurred. Accordingly, we sought to evaluate the clinical features and surgical results of patients enrolle...
Tunnel Boring Machines (TBMs) are widely used for tunneling in urban areas because of their high advance rate, precise as-built profile and minimal impact to buildings and traffic on the ground. For a tunnel built by a TBM, there are strict requirements on alignment control and safety. To meet these requirements, it is important to monitor the position of the TBM. In the current practice, the T...
ground settlement is often the most serious concern when tunneling under an old city with numerous historic monuments. a successful engineering design under these conditions would require getting the most out of the ground strength parameters and avoiding any weakening maneuver throughout the operation. knowing that surface settlement is highly affected by tunneling parameters in epb shield tun...
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