Safety Mining Technology of Coal Seams in Weathered Zone Based on Ground J-Type Pregrouting Reinforcement
المؤلفون المشاركون
Tu, Min
Rong, Chuanxin
Cai, Jinlong
Zhang, Hualei
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-12-20
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
A thin basement coal seam mining model under different overlying strata conditions was developed using the discrete element software UDEC.
This approach is used to discuss the safety mining of the thin basement coal seams.
Fracture development in overlying and rock strata movement law in the stope was discussed.
The relationship between support and surrounding rocks under different overlying strata conditions was analyzed.
Lastly, a field industrial test was conducted based on the research results.
A few major conclusions could be drawn.
Under load transmission in loose water-bearing strata, causing a large-scaled rock strata movement to advance into the working face is easy when only one bearing stratum exists in the overlying strata.
Meanwhile, the support bears strong loads, which can easily be collapsed.
When two bearing strata exist in the overlying one, the upper bearing stratum can form a voussoir beam structure.
Loads on the support decreased substantially compared with those under single bearing stratum, whilst the probability of pressing frame was reduced accordingly.
A weathered zone above the stope was reinforced by ground J-type drilling pregrouting, thereby improving the physical and mechanical properties and increasing the bearing capacity of the rock strata in the grouting range and safety mining of the working face in the lower coal seams.
Research results provide important references for the safety mining of thin basement coal seams under similar conditions.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Tu, Min& Cai, Jinlong& Zhang, Hualei& Rong, Chuanxin. 2018. Safety Mining Technology of Coal Seams in Weathered Zone Based on Ground J-Type Pregrouting Reinforcement. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1115815
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Tu, Min…[et al.]. Safety Mining Technology of Coal Seams in Weathered Zone Based on Ground J-Type Pregrouting Reinforcement. Advances in Civil Engineering No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1115815
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Tu, Min& Cai, Jinlong& Zhang, Hualei& Rong, Chuanxin. Safety Mining Technology of Coal Seams in Weathered Zone Based on Ground J-Type Pregrouting Reinforcement. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1115815
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1115815
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