پديد آورنده :
مختاريان دهاقاني، حسين
عنوان :
تحليل عددي تاثير حفاري تونل هاي دوربرگردان بر پايداري تونل هاي اصلي آزاد راه تهران-شمال
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
مكانيك سنگ
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده معدن
صفحه شمار :
نه،94ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
راحب باقرپور، حميد هاشم الحسيني
استاد مشاور :
عليرضا باغبانان، عليرضا صالحي
توصيفگر ها :
نرم افزار Flac 3D , سيستم نگهداري , تقاطع
تاريخ نمايه سازي :
26/5/92
استاد داور :
عباس اسلامي حقيقت، لهراسب فرامرزي
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
1 Numerical analysis of shortcut tunneling effects on the stability of main tunnels in Tehran Shomal North highway Hossein mokhtarian Dehaghani h mokhtarian d@gmail com Date of Submission 2012 10 22 Department of Mining Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Raheb Bagherpour bagherpour@cc iut ac ir Supervisor Hamid Hashemolhosseini hamidh@cc iut ac ir Abstract Great Alborz twin tunnels with 6450 meters in length located in 100 km distance from north of Tehran are the largest structures in the Tehran North highway construction The Alborz tunnel passes rugged mountains with high and low reliefs These tunnels consist of two main tunnels and an exploration tunnel The width and height of main tunnel tubes are 12 4 and 8 9 meters respectively Main tunnels connected to each other every 600 m by shortcut traffic tunnels These shortcut tunnels have width and height of 6 2 and 5 m respectively Near the intersections the openings of the main tunnel widen and expand to 12 4 width and 8 9 m height Numbers of shortcut tunnels in the Alborz tunnel are 10 sets This study analyzes the impact of excavation of three shortcut tunnels which are located in different formations and geological conditions on the stability of main tunnels with Flac 3D The first one located 600 meters from north span is embraced in Shemshak formation and includes 230 meters of overburden Displacement and support systems Shotcrete with 25 cm thickness and rock bolt System of this area is in a stable condition The second region with a distance of 3000 meters from north span located between Dorood and Karaj formations and the area is located under 850 meters of geological formations Final displacement for roof of the main tunnel is 63 6 mm This value indicates an unstable condition in Sakurray s criterion and also shows the stable condition in comparison to Hoek s diagram Support systems including Shotcrete with 30 cm thickness steel sets with 0 5 meters spacing and rock bolt System provide stability of this intersection area The third area is situated in 5850 meters from north span and is located in Karaj Formation Depth of this region is 323 meters Displacement and support systems Shotcrete with 25 cm thickness and rock bolt System of the third region is in a stable condition It has been concluded that the impact of widening on the main tunnel is more than implementation of shortcut tunnels over displacement and support system Keywords 1 Intersection 2 shortcut tunnels 3 Flac 3D 4 support System 5 Tehran North highway PDF created with pdfFactory trial version www pdffactory com
استاد راهنما :
راحب باقرپور، حميد هاشم الحسيني
استاد مشاور :
عليرضا باغبانان، عليرضا صالحي
استاد داور :
عباس اسلامي حقيقت، لهراسب فرامرزي
