پديد آورنده :
شاه حسيني، اكبر
عنوان :
تاثير پارامترهاي انفجار بر شكست ديناميكي توده سنگ اطراف تونل با استفاده از روش هاي عددي
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
مكانيك سنگ
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده معدن
صفحه شمار :
سيزده،71ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
راحب باقرپور، عليرضا باغبانان
استاد مشاور :
سعيد مهدوري
توصيفگر ها :
آتشباري آرام , تحليل ديناميكي , UDEC , ناحيه آسيب
تاريخ نمايه سازي :
5/9/92
استاد داور :
عباس اسلامي حقيقت، حميد هاشم الحسيني
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Effect of Detonation parameter on blast induced dynamic fracture in tunnel surrounding rock mass by numerical methods Akbar Shah Hosseini a shah@mi iut ac ir Date of Submission 2013 09 22 Department of Mining Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Dr Raheb Bagherpour bagherpour@cc iut ac ir Dr Alireza Baghbanan bagh110@cc iut ac ir Abstract Drilling and blasting is common economical technique for excavating of tunnels in hard rock masses where the Uniaxial Compressive Strength UCS of intact rock is relatively high Most important issue in this method is the undesirable induced damage by blasting around the excavation Using contour blasting methods such as smooth blasting are the way to avoid a thick damaged zone Since the damaged zone consists of a large number of micro macro fractures which have a great influence on support system advance rate water inflow into tunnel and in general tunnel life time predicting the thickness of this part is very important The object of this research work is to study the effect of blasting parameters on Blast Induced Damage BID zone around the tunnel In this case two different blasting patterns eg conventional and contour blasting were designed and the induced fractures due to these two patterns were investigated The Universal Distinct Element Code UDEC was used as a numerical dynamic modeling tool The numerical results show that using strong explosives with a high density and velocity of detonation in blastholes cause an intense damaged zone around the tunnel In short time the induced stress contours around the tunnels violate more when an ordinary blasting pattern is used compared with the contour blasting pattern Key words blasting smooth blasting dynamic analysis dynamic fracture UDEC blast induced damage PDF created with pdfFactory trial version www pdffactory com
استاد راهنما :
راحب باقرپور، عليرضا باغبانان
استاد مشاور :
سعيد مهدوري
استاد داور :
عباس اسلامي حقيقت، حميد هاشم الحسيني
