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Register a new userStability Analysis of a Rock Slop in Khneifees Mines Using Finite Difference Method and Strength Reduction Technique
تحليل توازن أحد المنحدرات الصخرية في مناجم خنيفيس بطريقة الفروق المحدودة وباعتماد تقنية إنقاص المقاومة
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Aِl-Baath University ورقة بحثية
Publication date
2014
fields
Civil Engineering
and research's language is
العربية
Created by
Shamra Editor
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يحدث انهيار المنحدرات الصخرية عادة على طول الانقطاعات البنيوية الموجودة في الكتل الصخرية، و لكن في حالة الكتل الصخرية المتصدعة بشكل كبير أو المعرضة للتجوية تكون سطوح الانهيار منحنية غالباً كما في حالة المنحدرات الترابية. يتعلق هذا البحث بتحليل توازن المنحدرات الصخرية المتصدعة و المعرضة للتجوية بطريقة إنقاص المقاومة و بالاستعانة ببرنامج FLAC الذي يعتمد على طريقة عددية في التحليل هي طريقة الفروق المحدودة، حيث تم إجراء محاكاة عددية لمنحدر صخري يقع في مناج فوسفات خنيفيس في البادية السورية، بهدف التحقق من كون هذا المنحدر آمناً لعمل العمال و آليات الحفر بجواره، و قد تم في هذا المثال توضيح كيفية تفسير النتائج التي يقدمها برنامج FLAC لتحديد حالة النموذج المدروس من حيث التوازن أو عدم التوازن، و استنتاج عامل الأمان للمنحدر و آلية انهياره.
Rock slope failures usually occur along the structural discontinuities in rock masses, but for weathered and highly jointed rock masses, failure surfaces are often curved as in soil slopes. This paper is concerned with stability analysis of weathered and highly jointed rock slope using shear strength reduction technique by FLAC program, which uses finite difference method. This paper presents a stability analysis of a rock slope in Khneifees mines in Syrian desert, to verify that it is safe for workers and equipments to work beside it, and manipulates the result charts of FLAC analysis using finite difference method and shear strength reduction technique to assess the stability of the rock slope, determine the safety factor of the rock slope and expect failure mechanism.
References used
Bishop, A. W. , (1955) " The Use of the Slip Circle in the Stability Analysis of Earth Slopes ", Geotechnique, 5, pp. 7-17
Coetzee, Matthys, J. , Hart, Dr Roger D. , Varona, Pedro M. & Cundull, Dr Peter A. , (1998) " FLAC Online Manual ", Itasca Consulting Group, Inc; Minneapolis, Minnesota USA
Duncan J. M. , (1996) " Limit Eguilibrium and Finite – Element Analysis of Slopes " , J. Geotech. Engng. Div. Am. Soc. Civ. Engnrs. 122, No. 7, pp. 577-596
Hoek, E. , and Bray, J. W. , (1981) " Rock Slope Engineering ", Institute of Mining and Metallurgy, London
Wikipedia, an article in the free encyclopedia, (25 July 2014): http://en.wikipedia.org/wiki/Finite_difference
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In this research, site investigations and tests were performed in
Khneifees phosphate mine. Samples of the studied rocks were
brought to the laboratory and tests were performed. The types of
these rocks are clayey limestone, organic limestone, white and gray
trepolite, opoka, chert and phosphate.The tests were performed
according to "American Standards for Testing of Materials"
(ASTM), and the recommendations of "International Society for
Rock Mechanics" (ISRM).
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تأتي أهمية البحث حيث إنه يدرس موضوع الرضا الوظيفي في أحد أهم القطاعات المساهمة بالتنمية في دولة
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ستقوم الباحثة بالتطرق لموضوع الرضا الوظيفي لدى العاملين في البنك العربي سورية -
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