Numerical Investigation into Evolution of Crack and Stress in Residual Coal Pillars under the Influence of Longwall Mining of the Adjacent Underlying Coal Seam
المؤلفون المشاركون
Li, Xuehua
Wang, Xin
Wu, Yuechao
Liang, Shun
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-18، 18ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-02-17
دولة النشر
مصر
عدد الصفحات
18
التخصصات الرئيسية
الملخص EN
Longwall mining of the adjacent coal seam with the presence of residual coal pillars overlying the seam can result in abnormal strata pressure and severe overburden failure, which poses a significant threat to mining safety.
The threat is mainly manifested in the form of intense coal or rock burst and hazardous interconnection between gobs.
This study employed the universal distinct element code (UDEC) to investigate the microscopic failure mechanism of the overlying residual coal pillars under the influence of longwall mining of an adjacent underlying coal seam in Yuanbaowan coal mine, China.
Using the Voronoi method, we innovatively visualized the evolution of cracks in residual pillars, revealed the mechanism behind the failure of pillars, and explored the evolution and distribution of abutment stress.
Also, strata movement characteristics during underlying panel extraction have been surveyed.
Based on the modeling results, effective measures are proposed to ensure safe mining under residual coal pillars.
This study might provide a certain reference for safe extraction of multiple seams in Datong Coalfield, China, and also in the central and western Appalachian Basin, United States, where many mining activities are carried out under residual pillars.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Wang, Xin& Wu, Yuechao& Li, Xuehua& Liang, Shun. 2019. Numerical Investigation into Evolution of Crack and Stress in Residual Coal Pillars under the Influence of Longwall Mining of the Adjacent Underlying Coal Seam. Shock and Vibration،Vol. 2019, no. 2019, pp.1-18.
https://search.emarefa.net/detail/BIM-1211023
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Wang, Xin…[et al.]. Numerical Investigation into Evolution of Crack and Stress in Residual Coal Pillars under the Influence of Longwall Mining of the Adjacent Underlying Coal Seam. Shock and Vibration No. 2019 (2019), pp.1-18.
https://search.emarefa.net/detail/BIM-1211023
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Wang, Xin& Wu, Yuechao& Li, Xuehua& Liang, Shun. Numerical Investigation into Evolution of Crack and Stress in Residual Coal Pillars under the Influence of Longwall Mining of the Adjacent Underlying Coal Seam. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-18.
https://search.emarefa.net/detail/BIM-1211023
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1211023
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