Study on Hysteretic Fracture of Naturally Cracked Surrounding Rock
المؤلفون المشاركون
Zhong, Zhibin
Deng, Ronggui
Lin, Fang
Zhang, Ying
Lv, Lei
Yin, Jing
Fu, Xiaomin
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2015-12-20
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
To determine the hysteretic fracture mechanism of the hard and naturally cracked surrounding rock mass, uniaxial and biaxial compression tests were performed on rhyolite specimens.
In the biaxial compression test, displacements and strains around the U-shaped opening were monitored throughout to study the fracture pattern and distribution of stress.
To compare with the experimental results, the finite difference code F L A C 3 D was used to simulate a perfectly intact rock model with the same geometric and mechanical conditions in a continuum model.
Stress-strain curves under uniaxial compression and the surrounding rock stresses of numerical results were compared with laboratory test.
On one hand, laboratory test and numerical results all showed that tensile fracture regions were found at the crown and floor of the opening while shear regions are found at the sidewall.
On the other hand, due to microcracks in the laboratory specimen, the laboratory test showed lower ultimate compressive strength.
However, its vertical displacement of initial fracture was larger than those of numerical model which did not consider about the microcracks.
They revealed the hysteretic fracture behaviour of underground opening in hard and cracked rock.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhong, Zhibin& Deng, Ronggui& Lin, Fang& Zhang, Ying& Lv, Lei& Yin, Jing…[et al.]. 2015. Study on Hysteretic Fracture of Naturally Cracked Surrounding Rock. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1074159
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhong, Zhibin…[et al.]. Study on Hysteretic Fracture of Naturally Cracked Surrounding Rock. Mathematical Problems in Engineering No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1074159
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhong, Zhibin& Deng, Ronggui& Lin, Fang& Zhang, Ying& Lv, Lei& Yin, Jing…[et al.]. Study on Hysteretic Fracture of Naturally Cracked Surrounding Rock. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1074159
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1074159
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