Effects of the Loading and Unloading Conditions on Crack Propagation in High Composite Slope of Deep Open-Pit Mine
المؤلفون المشاركون
Chang, Zhiguo
Cai, Qingxiang
Zhou, Wei
Jiskani, Izhar Mithal
Wang, Rui
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-05-28
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
In the process of open-pit excavation and stacking of dump along the side wall, the rock mass inside the composite slope undergoes complicated loading and unloading effect, which are manifested as triaxial stress → horizontal unloading → axial loading.
In this study, a corresponding mechanical model of crack propagation in composite slope under loading and unloading effects was established.
The stress-strain curves and deformation characteristics of rock under different stress paths were studied.
A series of different tests under unloading pressure condition were carried out to study the behavior of the rock fracture under different confining pressure paths.
The results showed that under the same initial stress conditions, the deviator stress required for rock unloading failure was less than that of the conventional triaxial compression.
The axial deformation of rock samples was gradually increased with the increase of unloading, and the unloading easily led to rock failure.
By analyzing the crack propagation mechanism under loading and unloading stress field, the analytic relation of the limit height of the composite slope with the crack morphology as the variation was determined when crack propagation occurred near the slope surface.
This study provides a technical note on local damage and cracks propagation of a fractured rock mass under the loading-unloading effects in high composite slope.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Chang, Zhiguo& Cai, Qingxiang& Zhou, Wei& Jiskani, Izhar Mithal& Wang, Rui. 2019. Effects of the Loading and Unloading Conditions on Crack Propagation in High Composite Slope of Deep Open-Pit Mine. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1115932
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Chang, Zhiguo…[et al.]. Effects of the Loading and Unloading Conditions on Crack Propagation in High Composite Slope of Deep Open-Pit Mine. Advances in Civil Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1115932
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Chang, Zhiguo& Cai, Qingxiang& Zhou, Wei& Jiskani, Izhar Mithal& Wang, Rui. Effects of the Loading and Unloading Conditions on Crack Propagation in High Composite Slope of Deep Open-Pit Mine. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1115932
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1115932
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر