پديد آورنده :
صداقتي، حميدرضا
عنوان :
مدل سازي عددي تحليل پايداري بلوكي پي سنگ سدها - مطالعه ي موردي سد رودبار لرستان
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
مكانيك سنگ
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده معدن
صفحه شمار :
ده،125ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
عليرضا باغبانان، حميد هاشم الحسيني
استاد مشاور :
مسعود چراغي، مرتضي رحيمي
تاريخ نمايه سازي :
26/5/92
استاد داور :
سعيد مهدوري، محمود هاشمي اصفهانيان
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Numerical modeling of rock block stability in dam foundations Case study in Roodbar Lorestan dam site Hamidreza Sedaghati hr sedaghati@mi iut ac ir Date of Submission 2013 01 22 Department of Mining Engineering IsfahanUniversity of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisors AlirezaBaghbanan bagh110@cc iut ac ir Hamid Hashemolhosseini hamidh@cc iut ac ir Abstract Rock mass consists of intact rock and discontinuity features which are formed a lot of blocks Discrete Fracture Networks DFN makes a more closely geometrical model to the reality and Discrete Element Method DEM is a strong numerical tool for simulating the former complex media Using DEM modeling the deformability of the rock mass and also individual blocks within the model are calculated Such displacements may cause unbalance subsidence in dam foundations and therefore it has a great influence on stability of dams Existence of water flow through the fractures may also increase the instability of dam foundation mainly due to the effect of pore pressure Dynamic loading from different sources such as earthquake is also oscillated blocks which is an important factor in the structural instability In the previous research work in this field of study they did not performed a systematic numerical modeling to take into account all aforementioned phenomena on dam foundation using a hybrid DFN DEM approach which is the main objective of this research work The basic geometrical and mechanical parameters for numerical modeling were taken from Rudbar Lorestan dam site To avoid of random effect a large number of stochastic DFN model was generated and the rate of foundation subsidence under different loading conditions are calculated Dynamic analysis was performed based on the history of a Design Basis Earthquake The results show a great degree of uncertainty between the calculated subsidence values from equivalent continuous and discontinuous media The calculated subsidence value in different part of foundation is different The maximum estimated subsidence was 10cm in dry condition During the dynamic loading the rock blocks were experienced vibration and they were move up to 5cm from their original locations which may have a harmful impact in dam body Key words Subsidence Numerical Modelling Discrete Element Method Discontinuities Discrete Fracture Networks PDF created with pdfFactory trial version www pdffactory com
استاد راهنما :
عليرضا باغبانان، حميد هاشم الحسيني
استاد مشاور :
مسعود چراغي، مرتضي رحيمي
استاد داور :
سعيد مهدوري، محمود هاشمي اصفهانيان
