A New Width Measurement Method of the Stress Relief Zone on Roadway Surrounding Rocks
المؤلفون المشاركون
Hui, Li
Yao, Banghua
Wei, Jianping
Liu, Yong
Cui, Pengfei
Wen, Zhihui
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-11-27
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
Determining the width of the stress relief zone on roadway surrounding rocks is the premise to optimize drilling borehole effect and increase gas extraction efficiency.
In this study, a new width measurement method of the stress relief zone on the roadway surrounding rocks was proposed, which determined the width according to gas pressure attenuation speeds in roadway boreholes at different depths.
Then, the variation curve of the gas pressure in boreholes at different depths with the time was gained through a field test.
On this basis, laws of the gas pressure attenuation and the gas transmission and loss in boreholes at different depths were explored through a numerical simulation based on COMSOL Multiphysics, thus concluding the stress on roadway surrounding rocks, the distribution of plastic zones, and the stress-permeability relation.
The scientificity of the proposed method was illustrated theoretically.
Finally, the proposed method was verified by the field test data and numerical simulation results of the gas extraction at different sealing depths.
Research results demonstrate that the pressure in boreholes attenuates in the logarithmic function pattern.
The attenuation speed decreases with the increase of the drilling depth.
The width of the stress relief zone on roadway surrounding rocks in the studied area was determined to be about 11 m according to the proposed method.
Both the numerical simulation and the field test of the gas extraction efficiency prove the feasibility and validity of the proposed method in determining the sealing depth of the borehole for the gas extraction.
Research conclusions are of important significance to enrich width measurement methods of the stress relief zone on roadway surrounding rocks and to optimize sealing parameters of underground boreholes for gas extraction.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Cui, Pengfei& Yao, Banghua& Liu, Yong& Wei, Jianping& Wen, Zhihui& Hui, Li. 2019. A New Width Measurement Method of the Stress Relief Zone on Roadway Surrounding Rocks. Geofluids،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1154636
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Cui, Pengfei…[et al.]. A New Width Measurement Method of the Stress Relief Zone on Roadway Surrounding Rocks. Geofluids No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1154636
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Cui, Pengfei& Yao, Banghua& Liu, Yong& Wei, Jianping& Wen, Zhihui& Hui, Li. A New Width Measurement Method of the Stress Relief Zone on Roadway Surrounding Rocks. Geofluids. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1154636
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1154636
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