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ارائه الگوریتمی جهت تعیین توابع توزیع جهتداری و موقعیت ناپیوستگیها در فضا و استفاده از آن در تحلیل پایداری شیبهای سنگی | ||
علوم و فنون سازندگی | ||
دوره 6، شماره 1 - شماره پیاپی 18، مرداد 1404، صفحه 1-13 اصل مقاله (1.38 M) | ||
نوع مقاله: مقاله پژوهشی | ||
نویسنده | ||
مجتبی ربیعی وزیری* | ||
مربی، دانشگاه شهید باهنر کرمان. قرارگاه سازندگی خاتم الانبیاء (ص). | ||
تاریخ دریافت: 09 اردیبهشت 1402، تاریخ بازنگری: 05 مرداد 1402، تاریخ پذیرش: 09 مهر 1402 | ||
چکیده | ||
تعیین نوع و خصوصیات توابع توزیع جهتداری و موقعیت ناپیوستگیها از اهمیت ویژهای در مباحث مربوط به مکانیکسنگ و زمین-شناسی مهندسی برخوردار است. عموماً توابع توزیع پارامترهای جهتداری شامل مقدار شیب و جهت شیب یا به صورت فرضی در نظر گرفته میشوند و یا به صورت مستقل از هم تعیین میگردند و وابستگی فضایی این پارامترها در تعیین توابع توزیع آنها نادیده گرفته میشود. این موضوع باعث ایجاد عدمقطعیت در تعیین توابع توزیع جهتداری و موقعیت ناپیوستگیها میگردد. در این مطالعه با استفاده از روشهای آماری و احتمالاتی و نیز روشهای بررسی قابلیت اطمینان، الگوریتمی برای تعیین توابع توزیع ذکر شده ارائه گردید. بررسیها نشان دهنده توانایی بالای این الگوریتم در تعیین توابع توزیع جهتداری و موقعیت فضایی ناپیوستگیها میباشند. در ادامه اقدام به تعیین توابع توزیع جهتداری و موقعیت ناپیوستگیها در دیواره غربی معدن مس سرچشمه به عنوان مورد مطالعاتی شد و پایداری این دیواره با استفاده از توابع توزیع شناسایی شده، بررسی گردید. نتایج نشان داد تابع توزیع ترکیبی لاگ لوجستیک و ویبل 3 پارامتری بهترین تابع توزیع برای توصیف جهتداری و موقعیت ناپیوستگیها است. بررسی احتمال رخداد ناپایداری با استفاده از تابع توزیع ترکیبی شناسایی شده و تحت شیبهای مختلف دیوارهنهایی نشان داد، احتمال رخداد ناپایداری در دیوارهنهایی غربی تحت شیب دیواره 45 درجه حداکثر است و تحت شیب دیواره 30 درجه دیوارهنهایی کاملاً پایدار است. همچنین شیب بهینه دیوارهنهایی غربی معدن مس سرچشمه 29 درجه تعیین گردید. | ||
کلیدواژهها | ||
تحلیل پایداری شیب؛ تحلیل احتمالاتی؛ تابع توزیع ترکیبی؛ موقعیت هندسی ناپیوستگیها؛ روش شبیهسازی مونت کارلو | ||
عنوان مقاله [English] | ||
Presenting an algorithm for determining the distribution functions for orientation and location of discontinuities in space and its use in the rock slopes stability analysis | ||
نویسندگان [English] | ||
Mojtaba Rabiei Vaziri | ||
Shahid Bahonar university of kerman. Khatam al-Anbiya Construction Headquarter. | ||
چکیده [English] | ||
Determining the type and characteristics of the distribution functions for orientation and location of discontinuities in rock mechanics and engineering geology is important. Generally, the distribution functions of orientation parameters, including the dip and dip direction, are either hypothetically determined or determined independently and the spatial dependence of these parameters is ignored in determining their distribution functions. This creates uncertainty in determining the distribution functions for orientation and location of discontinuities. In this study, using statistical, probabilistic and reliability methods, an algorithm for determining the distribution functions is presented. Studies show the high ability of this algorithm to determine the orientation distribution functions and spatial location of discontinuities. Then distribution functions of orientation and location for discontinuities were determined in the western wall of Sarcheshmeh copper mine. Stability of the wall was investigated using the identified distribution functions. The results showed that the Log Logistic – 3 parameter Weibull combined distribution function is the best distribution function for describing orientation and location of discontinuities. Instability was investigated using the combined distribution function detected and under different dips of the final wall. The results showed that the probability of occurrence of instability in the western wall is maximum under the 45 ° of the final wall dip and final wall is completely stable under the 30 ° of wall dip. The optimal dip of the western wall of the Sarcheshmeh copper mine is 29 °. | ||
کلیدواژهها [English] | ||
Slope stability analysis, Probabilistic analysis, Combined distribution function, Location of discontinuities, Monte Carlo simulation method | ||
مراجع | ||
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