Study on the Rheological Failure Mechanism of Weakly Cemented Soft Rock Roadway during the Mining of Close-Distance Coal Seams: A Case Study
المؤلفون المشاركون
Guo, Yong
Ning, Jianguo
Ru, Wenkai
Hu, Shanchao
Gu, Qingheng
Zuo, Jing
Wang, Jun
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-20، 20ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-07-31
دولة النشر
مصر
عدد الصفحات
20
التخصصات الرئيسية
الملخص EN
During the mining of the shallow-buried and close-distance multiple coal seam, the rheological failure of the surrounding weakly cemented soft rock of the roadway in the lower coal seam under the concentrated stress is very rare.
However, the stress on the roof of the upper coal seam is transmitted down through the residual pillar, resulting in this situation.
Taking the Gaojialiang coal mine which is located in the mining areas of western China as the research object, the failure mechanism of the roadway roof under the residual coal pillar in the shallow-buried and close-distance multiple seam is studied in combination with field monitoring and numerical simulation.
Furthermore, suggestions on the roadway support under such geological conditions are proposed.
The results show that the residual coal pillar in the working face of the lower coal seam gradually collapses during the mining of the shallow-buried and close-distance multiple coal seam.
The concentrated stress transferred by the coal pillar increases further, which makes the roof stress of the lower coal seam roadway to increase continuously.
In addition, the stress of the roadway roof also increases further due to the rotation of the broken rock above the goaf, and the peek region of stress moves to the nongoaf area.
Combining the heavy concentrated stress and weakly cemented property, the shallow-buried surrounding rock shows rheological behavior and failure.
Therefore, we must pay more attention on the creep failure of the roadway roof under the action of the residual coal pillar even in the shallow-buried coal seam.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Ru, Wenkai& Hu, Shanchao& Ning, Jianguo& Wang, Jun& Gu, Qingheng& Guo, Yong…[et al.]. 2020. Study on the Rheological Failure Mechanism of Weakly Cemented Soft Rock Roadway during the Mining of Close-Distance Coal Seams: A Case Study. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1125301
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Ru, Wenkai…[et al.]. Study on the Rheological Failure Mechanism of Weakly Cemented Soft Rock Roadway during the Mining of Close-Distance Coal Seams: A Case Study. Advances in Civil Engineering No. 2020 (2020), pp.1-20.
https://search.emarefa.net/detail/BIM-1125301
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Ru, Wenkai& Hu, Shanchao& Ning, Jianguo& Wang, Jun& Gu, Qingheng& Guo, Yong…[et al.]. Study on the Rheological Failure Mechanism of Weakly Cemented Soft Rock Roadway during the Mining of Close-Distance Coal Seams: A Case Study. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1125301
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1125301
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