Geometric Model for Physical Simulation System of Coal and Gas Outburst
المؤلف
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-11-03
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
The physical simulation system is an important means to study the mechanism of coal and gas outburst.
The small- and medium-sized coal and gas outbursts account for the largest proportion in China.
So, the paper focuses on small- and medium-sized coal and gas outbursts based on key physical rules and their statistical characteristics.
According to the geometric parameters statistical data of more than 100 caverns, the proportion of outburst caverns whose depth is less than 5 m is 80%, and whose depth is more than 6 m is 13%.
The ratio of depth and cavern outlet’s diameter is 2.58–7.31.
There are statistical relationship of 2 times between coal’s and cavern’s volume, and between gas emission volume per ton and gas content in seam.
Then, the cavern of coal and gas outburst is simplified as an ellipsoid, and the shape of cavern outlet is simplified as a circle.
The cavern’s and the prototype’s geometrical parameters of small and medium coal and gas outbursts were deduced.
The depth of cavern is 5 m, width is 4 m, and diameter of cavern outlet is 0.68–1.94 m.
The depth of coal and outburst prototype is 12.3 m, width is 6.5 m, and diameter of cavern outlet is 0.68 m.
In order to guarantee the movement similarity, according to the relationships among statistical data of outburst coal particle’s size, cavern outlet’s size, and height of tunnel, the minimum cavern outlet’s size was calculated.
Select 10 times the coal particle’s size (5 mm) as the smallest size.
Then, maximum geometric similarity ratio of coal and gas outburst was deduced, and it is 13.6.
The minimum geometrical parameters of coal and outburst similar model were obtained.
Its depth is 0.9 m, width is 0.48 m, and diameter of cavern outlet is 50 mm.
According to the results, the physical simulation system was developed.
The results provide support to carry out physical simulation experiment of coal and gas outburst.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhang, Shutong. 2020. Geometric Model for Physical Simulation System of Coal and Gas Outburst. Shock and Vibration،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1210529
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhang, Shutong. Geometric Model for Physical Simulation System of Coal and Gas Outburst. Shock and Vibration No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1210529
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhang, Shutong. Geometric Model for Physical Simulation System of Coal and Gas Outburst. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1210529
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1210529
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