Study on the Relationship between Stress and Charge of Coal Mass under Uniaxial Compression
المؤلفون المشاركون
Pan, Yi-shan
Wang, Ai-wen
Xiao, Xiao-chun
Ding, Xin
Wu, Di
Wang, Gang
Zhao, Hongrui
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-10-21
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
This paper presents a new method to identify the stress concentration degree and stress distribution characteristics in front of working face in coal mine, based on the close relationship between charge and stress during fracture of coal mass.
This method overcomes many disadvantages of conventional stress-monitored methods.
First, the stress and charge relationship of coal mass was established through damage theory and statistical strength theory.
Then, the relationship between stress and charge was studied by a laboratory test, and finally, the field charge monitoring test was performed.
The results show that there is a nonlinear relationship between loading stress (σ) and cumulative charge (Q), which can be represented by polynomials.
The fitting results of the laboratory test between σ and Q conform to a cubic polynomial function, Q=aσ3+bσ2+cσ+d.
It verifies the rationality of the theoretical relationship formula.
The field monitoring results show that average charge is great and cumulative charge changes from rapid upward to sharp upward before roof falling.
The magnitude and position of average charge and the upward trend of cumulative charge can be used to identify the stress concentration and stress distribution in front of working face, and the abnormal stress area can be predicted.
The results can provide certain guidance for the forecast of rock burst in coal mine.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Wang, Gang& Pan, Yi-shan& Xiao, Xiao-chun& Wu, Di& Zhao, Hongrui& Wang, Ai-wen…[et al.]. 2019. Study on the Relationship between Stress and Charge of Coal Mass under Uniaxial Compression. Shock and Vibration،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1211711
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Wang, Gang…[et al.]. Study on the Relationship between Stress and Charge of Coal Mass under Uniaxial Compression. Shock and Vibration No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1211711
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Wang, Gang& Pan, Yi-shan& Xiao, Xiao-chun& Wu, Di& Zhao, Hongrui& Wang, Ai-wen…[et al.]. Study on the Relationship between Stress and Charge of Coal Mass under Uniaxial Compression. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1211711
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1211711
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