Numerical Test Research on Loading Rate Effect of Rock Mass with Transfixion Sawtooth Structural Plane
المؤلفون المشاركون
Li, Dongsong
Du, Yanhong
Chen, Feng
Ma, Tianhui
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-11-06
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
In this paper, numerical test research is carried out on the loading rate effect of a numerical specimen (sample C) with a transfixion sawtooth structural plane by using the rock failure process analysis (RFPA) 2D software.
In order to study the mechanical characteristics difference between the rock mass with this kind of structural plane and other rock masses, the intact numerical specimen (sample A) of no structural plane and the numerical specimen (sample B) with smooth structural plane are also simulated.
The uniaxial compression tests were carried out for each specimen under five loading rates of 0.002, 0.005, 0.008, 0.02, and 0.05 mm/s.
The following several conclusions are obtained by the numerical test.
When the loading rate is 0.002 or 0.005 mm/s, the failure mode of the numerical specimen C is an inclined linear fracture zone located in the middle and lower part of the rock mass; however, when the loading rate rises to 0.008, 0.02, and 0.05 mm/s, the fracture zone of the numerical specimen C is located in the middle and upper part of the rock mass, and its inclination angle is about 60 degrees.
The peak strength, residual strength, and stress drop of the specimens A, B, and C increase with the addition of loading rate; the peak strength and stress drop of the sample C are higher than those of the other two samples.
When the loading rate is 0.002 mm/s, the residual strength of sample C is lower than that of samples A and B, and the other four kinds of loading conditions are higher than those of specimens A and B.
Based on the acoustic emission (AE) information, it can be seen that the failure modes of the numerical specimen C under five loading conditions are tensile failure.
The AE accumulated energy decreases with the increase of loading rate, but the change law of AE accumulated number is opposite.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Li, Dongsong& Du, Yanhong& Chen, Feng& Ma, Tianhui. 2020. Numerical Test Research on Loading Rate Effect of Rock Mass with Transfixion Sawtooth Structural Plane. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1124256
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Li, Dongsong…[et al.]. Numerical Test Research on Loading Rate Effect of Rock Mass with Transfixion Sawtooth Structural Plane. Advances in Civil Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1124256
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Li, Dongsong& Du, Yanhong& Chen, Feng& Ma, Tianhui. Numerical Test Research on Loading Rate Effect of Rock Mass with Transfixion Sawtooth Structural Plane. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1124256
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1124256
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