جستجو در تالارهای گفتگو
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8 نتیجه پیدا شد
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Tunnel Lining Design and Construction Verya Naseri 2017 فایل پی دی اف در 74 اسلاید منبع @Civilbest -tunnel-lining-design-and-construction.pdf
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Underground Construction Technology فایلی ارزشمند و پر محتوا در خصوص تونل و روش‌های اجرایی فایل پی دی اف در 74 اسلاید منبع Tunnels_2015-05-08_Toth_2-PermanentSupport-Maintenance.pdf
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لاینینگ تونل ( Tunnel Lining )
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لاینینگ تونل ( Tunnel Lining ) خانم مهندس عزیزی پارک علم و فن آوری عمران - انجمن ژئوتکنیک فایل پی دی اف در 18 صفحه منبع لاینینگ_تونل_خانم_مهندس_عزیزی_94.pdf -
جزوه اصول مهندسی تونل (دکتر مسعود حاجی علیلو)
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جزوه اصول مهندسی تونل دکتر مسعود حاجی علیلو استاد گروه ژئوتکنیک دانشگاه تبریز فایل پی دی اف در 400 اسلاید شامل سرفصلهای زیر : ارزیابی و تعیین مشخصات زمین حفاری پایداری ( تثبیت و پوشش ) تونل در زمین های نرم تزریق و انجماد کند و پوش تونل کنترل آب زیرزمینی رفتار خاک و سنگ تنش و کرنش در اطراف تونل پایش منبع Tunnel_Eng_Dr_ Hajialilue.pdf -
EXAMPLE CUT AND COVER BOX TUNNEL مثال حل شده و معتبر FHWA در مورد طراحی تونل با مقطع مستطیلی با روش اجرای cut & cover مطابق آشتو LRFD منبع دانلود از پیوست @sharifstructure_tunnel design example.pdf
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Evaluation of Effective Parameters on the Underground Tunnel Stability Using BEM
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Evaluation of Effective Parameters on the Underground Tunnel Stability Using BEM M Panji 1 ; J Asgari Marnani2 ; Sh Tavousi Tafreshi2 There are various parameters that affect stability and expansion of failure zones in under pressure tunnels. Among the important parameters that affect failure zones around the tunnels are cohesion and internal friction angle of the rock mass. In addition, the cross sectional shape is the considerable point in failure distribution around the tunnels. The stress analysis method is one of the applicable methods for evaluating stability and recognizing failure zones in underground tunnels. On the other hand, numerical stress analysis method, because of obtaining results with simplicity and desirable accuracy, is one of the best methods in stability evaluation of the tunnels. The Boundary Element Method (BEM) has unique advantages in stability analysis of infinite continuums. In this paper, using Hoek-Brown failure criteria and also BEM, failure zones around the tunnels with various section shapes are studied numerically and the effects of cohesion and internal friction angle of rock mass on formation and distribution of failure radii are evaluated. It deserves mentioning that the behavior of the rock mass around the tunnels is assumed to be elastic and the formulations are based on plane strain. منبع دانلود JSEG141329597000.pdf -
Assessment of the Drain Conditions on Variations of the Pore Pressure in Surrounding Soil of the Tun
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Assessment of the Drain Conditions on Variations of the Pore Pressure in Surrounding Soil of the Tunnel Mohammad Azadi Azadi ; S.M Mir Mohammad Hosseinib ; S.M. Nasimifar ; M Pouranian Excess pore pressure under seismic loadings has always been a main concern in geotechnical engineering practices. The phenomenon in soil can cause an effective stress and hence cause the shear strength of the soil to decrease considerably and large deformations to occur in the area. Generally, increases in pore pressure occur in un-drained conditions. If it is formed, its consequences decrease seriously. There are several reports on devastations caused by excess pore pressure in the surrounding soil of the underground structures. As stresses and deformations of the tunnel lining increase, the surrounding soil of the tunnel is liquefied and large deformations become observable. If an increase in the pore pressure occurs in the surrounding soil of the tunnel, which is an improvement of the surrounding area of the tunnel, then stresses and deformations should be set on the allowable limit. Therefore, evaluation of excessive pore pressure effects on the tunnel lining can be regarded as an important issue and this paper is designed to focus on precisely this topic. منبع دانلود JSEG21313868600.pdf -
Ancient Tunnel and Diversion Channel in Seleuceia Pieria: A Flood Diversion System near Antiochia in Turkey
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Ancient Tunnel and Diversion Channel in Seleuceia Pieria: A Flood Diversion System near Antiochia in Turkey Original Article, C1 Alkan A,ÖZİŞ Ü. Journal. Civil Eng. Urban. 3(1): 01-05. 2013 ABSTRACT:The diversion system at Çevlik, near Antakya in Turkey, had the purpose to prevent the siltation of the antique harbour of Seleuceia Pieria. This 875 m long system consists of a dam, a short approach channel, the first tunnel, a short intermediary channel, the second tunnel, a long discharge channel. The construction began in 1.century A.D. during the reign of Vespasianus, continued under his son Titus and several successors, completed in 2.century A.D. during the reign of another roman emperor, Antonius Pius. The tunnels of simple horseshoe and trapezoidal cross-sections, with dimensions in the order of 5 to 7 m, have a capacity of 150 m3/s. The capacity of the open channel section is computed as 70 m3/s, corresponding to a peak flood discharge with average recurrence interval of about 10 years. Keywords: Çevlik, Seleuceia, Tunnel, Flood, Diversion. منبع: [Hidden Content] دانلود: [Hidden Content],%203(1)%2001-05.pdf JCEU-2013-C1, 3(1) 01-05.pdf