Study on Stress Relief of Hard Roof Based on Presplitting and Deep Hole Blasting
المؤلفون المشاركون
Ma, Zhanguo
Gong, Peng
Cheng, Shixing
Chen, Yongheng
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-10-28
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
For the problem that the hard roof causes wider end-mining coal pillar, and the roadway is greatly affected by mining, this paper took Shanxi Luning Coal Mine as the engineering background; based on the stress distribution characteristics of the coal pillar, the calculation method of the limit end-mining coal pillar size was given; considering the formation conditions and transmission forms of the advanced abutment stress, a method combining presplitting and deep hole blasting was proposed to weaken the advanced abutment stress.
The numerical simulation was used to analyze the stress distribution of coal pillars, which was verified by on-site industrial tests.
The results showed that the presplitting can achieve the blocking of stress.
The closer it is to the peak of the abutment stress, the better the blocking effect.
Deep hole blasting can weaken the source of the advanced abutment stress and reduce the peak of abutment stress.
With the combination of the two blasting methods, the end-mining coal pillar size of Luning Coal Mine can be reduced to 60 m.
The method combining presplitting and deep hole blasting can effectively reduce the end-mining coal pillar size and reduce the impact of mining on the deformation of the dip roadway.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Gong, Peng& Chen, Yongheng& Ma, Zhanguo& Cheng, Shixing. 2020. Study on Stress Relief of Hard Roof Based on Presplitting and Deep Hole Blasting. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1123783
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Gong, Peng…[et al.]. Study on Stress Relief of Hard Roof Based on Presplitting and Deep Hole Blasting. Advances in Civil Engineering No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1123783
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Gong, Peng& Chen, Yongheng& Ma, Zhanguo& Cheng, Shixing. Study on Stress Relief of Hard Roof Based on Presplitting and Deep Hole Blasting. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1123783
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1123783
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