Deflection Mechanism and Safety Analysis of Coal Mine Shaft in Deep Soil Strata
المؤلفون المشاركون
Han, Jihuan
Hu, Chenchen
Zou, Jiuqun
Yang, Weihao
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-12-05
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
The main shaft and auxiliary shaft in the Guotun Coal Mine underwent large deflections, with deflection values of 359 mm and 322 mm, respectively.
These two deflections represent the first occurrence of such large vertical shaft deviations in the soil strata in China.
The deflection problem has seriously affected the hoisting safety and lining safety and has become a serious impediment to the sustainable production of mines.
Therefore, the deflection mechanism must be determined.
For this purpose, based on mining subsidence theory, the spatial probability integral method and a more accurate time function were used to establish a model, called 3D dynamic prediction model, for predicting the shaft movement.
The formulas for calculating the lining stress caused by coal mining were based on established models.
With measured shaft deflection data, the prediction parameters for deep soil strata were calculated on the basis of an inversion analysis.
A comparative analysis of measured and calculated deflection values revealed that the reason for shaft deflection in Guotun Coal Mine is the insufficient size of the protection coal pillar (PCP); namely, the design parameters of the PCP in current codes are not applicable to the deep soil strata.
As a result, under the asymmetric mining conditions, mining causes the shaft to deflect without damage and under the symmetric mining conditions, mining causes the lining to fracture.
The results have an extremely important significance for the prevention and control of shaft deflection, for the rational design of PCP, and for the sustainability of mine production.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Han, Jihuan& Zou, Jiuqun& Hu, Chenchen& Yang, Weihao. 2019. Deflection Mechanism and Safety Analysis of Coal Mine Shaft in Deep Soil Strata. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1198098
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Han, Jihuan…[et al.]. Deflection Mechanism and Safety Analysis of Coal Mine Shaft in Deep Soil Strata. Mathematical Problems in Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1198098
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Han, Jihuan& Zou, Jiuqun& Hu, Chenchen& Yang, Weihao. Deflection Mechanism and Safety Analysis of Coal Mine Shaft in Deep Soil Strata. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1198098
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1198098
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