Experimental Study of Influence of Support Failures on Rockbursts under True-Triaxial Condition
المؤلفون المشاركون
Li, Tianbin
Chen, Guoqing
Su, Guoshao
Jiang, Jianqing
Mo, Jinghai
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-20، 20ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-09-23
دولة النشر
مصر
عدد الصفحات
20
التخصصات الرئيسية
الملخص EN
Supports can effectively reinforce the surrounding rock after excavation in underground engineering.
However, a support failure may cause an extremely intense rockburst.
Hence, the influences of support failures, including support forces, support failure timings, and support failure rates, on rockbursts were systematically investigated in the present study.
Unloading tests on rock specimens, using a true-triaxial rockburst test system, were performed to simulate rockbursts induced by support failure.
The experimental results indicate that increasing support forces increased the prepeak accumulated elastic strain energy, the kinetic energy of the ejection fragment, and the ratio between the kinetic energy and release strain energy, whereas the damage to the rock specimens declined.
During the testing process, the longer it took to unload the minimum stresses was, which means that the later the support failed, the greater the prepeak accumulated elastic strain energy was, the kinetic energies of the ejection fragments were, and the ratio of the kinetic energy and release strain energy was.
Furthermore, as the support failure rate incremented, the kinetic energies of the ejection fragments of the rockbursts linearly increased, the failure mode of the rock changed from static failure to dynamic rockbursts, and the intensities of the rockbursts increased.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Su, Guoshao& Li, Tianbin& Jiang, Jianqing& Chen, Guoqing& Mo, Jinghai. 2018. Experimental Study of Influence of Support Failures on Rockbursts under True-Triaxial Condition. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-20.
https://search.emarefa.net/detail/BIM-1115562
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Su, Guoshao…[et al.]. Experimental Study of Influence of Support Failures on Rockbursts under True-Triaxial Condition. Advances in Civil Engineering No. 2018 (2018), pp.1-20.
https://search.emarefa.net/detail/BIM-1115562
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Su, Guoshao& Li, Tianbin& Jiang, Jianqing& Chen, Guoqing& Mo, Jinghai. Experimental Study of Influence of Support Failures on Rockbursts under True-Triaxial Condition. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-20.
https://search.emarefa.net/detail/BIM-1115562
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1115562
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