A new peak shear strength criterion based on morphological characteristics for natural rock joints
محل انتشار: سومین کنفرانس ملی فناوری های معدنکاری ایران
سال انتشار: 1400
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 65
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شناسه ملی سند علمی:
IMT03_010
تاریخ نمایه سازی: 28 اسفند 1402
چکیده مقاله:
As a result of different stages of geological processes, joints are created with various surfaces and degrees of matching. However, some researchers have studied the shear mechanism of rock joints in the laboratory; most works have been carried out on mated joints with regular shapes (square or rectangular). The study of shear behavior of natural joints obtained from core drilling with different morphological characteristics, degrees of matching, and irregularly shaped is an issue that has gained less attention. In this study, the morphological characteristics of ۳۷ natural rock joints by photogrammetry. A new three-dimensional mobilized roughness was presented with the analysis of the shear-measured results based on the morphological parameters and the least square fitting method. A model was developed to predict the shear resistance of natural rock joints. Finally, the estimation accuracy of the available classic models was compared with the new model, and it was observed that the new criterion could predict more accurate results.
کلیدواژه ها:
نویسندگان
Masoud Shamsoddin-Saeed
Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
Saeed Karimi-Nasab
Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
Hossein Jalalifar
Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
Hojat Nasab
Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman, Iran