کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
294665 511491 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical investigation on the sensitivity of jointed rock mass strength to various factors
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
پیش نمایش صفحه اول مقاله
Numerical investigation on the sensitivity of jointed rock mass strength to various factors
چکیده انگلیسی

The mechanical properties of jointed rock masses, such as strength, deformation and the failure mechanism, can be understood only by studying the sensitivity of jointed rock mass strength (both the peak and residual strengths) to the factors that affect it. An orthogonal design of uniaxial compression tests was simulated on eighteen groups of jointed rock specimens having different geometric and mechanical properties using RFPA2D (Rock Failure Process Analysis) code. The results show that the peak strength is controlled by the geometric parameters of the joints, but that the residual strength is controlled by the mechanical properties of the joint interfaces. The failure mode of jointed rock specimens is mainly shear failure. Joint quantity, or density, is the most important index that affects jointed rock mass strength and engineering quality.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mining Science and Technology (China) - Volume 20, Issue 4, July 2010, Pages 530-534