Analysis of Failure Characteristics and Strength Criterion of Coal-Rock Combined Body with Different Height Ratios
المؤلفون المشاركون
Wang, Tuo
Ma, Zhanguo
Gong, Peng
Li, Ning
Cheng, Shixing
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-08-10
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
In underground mining and roadway support engineering of coal mine, the coal and rock layers bear loads together; therefore, the deformation and mechanical characteristics of the coal-rock combined bodies are not the same as those of the pure coal or rock bodies.
In this paper, conventional triaxial compression tests of coal-rock combined bodies with different height ratios were conducted.
And the stress and deformation characteristics of coal-rock combined body were studied and the experimental results were analyzed with different strength criteria.
The results show that the peak stress, elastic modulus, and strength reduction coefficient of coal-rock combined body are negatively correlated with the ratio of coal to coal-rock combination height and positively correlated with the confining pressure; the coal-rock combination shows obvious ductility under 10 MPa confining pressure.
Under the conventional triaxial condition, the shear failure was the main cause of the lateral deformation of the coal body in the coal-rock combination, which was much larger than that of the rock body.
The circle deformation value, volume strain value, and the deformation rate in the postpeak stage of coal-rock combination are much higher than those in the prepeak stage.
Mohr–Coulomb and general Hoek–Brown strength criterion fit the experimental results well.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Wang, Tuo& Ma, Zhanguo& Gong, Peng& Li, Ning& Cheng, Shixing. 2020. Analysis of Failure Characteristics and Strength Criterion of Coal-Rock Combined Body with Different Height Ratios. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1123768
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Wang, Tuo…[et al.]. Analysis of Failure Characteristics and Strength Criterion of Coal-Rock Combined Body with Different Height Ratios. Advances in Civil Engineering No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1123768
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Wang, Tuo& Ma, Zhanguo& Gong, Peng& Li, Ning& Cheng, Shixing. Analysis of Failure Characteristics and Strength Criterion of Coal-Rock Combined Body with Different Height Ratios. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1123768
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1123768
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