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Mathematical and Mechanical Analysis of the Effect of Detonator Location and Its Improvement in Bench Blasting
المؤلفون المشاركون
Leng, Zhendong
Wang, Yaqiong
Gao, Qidong
Yang, Ruipeng
Chen, Ming
Sun, Pengchang
Luo, Sheng
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-06-04
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
The outcome of bench blasting significantly affects the downstream operations in mining.
In bench blasting, the explosives charged in blastholes are generally cylindrically shaped and fired by the in-hole detonator.
As the detonator determines the propagation of the detonation wave in the cylindrical charge, the effect of detonator location can never be ignored.
In this paper, the mathematics and mechanics of the effect of detonator location was analyzed from the view of the distribution of explosion energy and blast stress field of a cylindrical charge.
Then, a field blasting experiment and two numerical simulations were conducted to further display its effect on blasting outcomes.
At last, the appearance of oversize boulders and rock toes in bench blasting was discussed, and an improved scheme of the detonator location was proposed to cope with these problems.
Results indicate that the in-hole detonator has the capacity of adjusting the spatial distribution of explosion energy and blast stress field in the surrounding rock mass.
The traditional recommendation of the bottom detonator is not always right.
The optimized detonator location in bench blasting is available by properly combining the merits of traditional detonator locations.
This study is of interest to improve the efficiency and reduce the cost of mining.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Gao, Qidong& Leng, Zhendong& Yang, Ruipeng& Wang, Yaqiong& Chen, Ming& Sun, Pengchang…[et al.]. 2020. Mathematical and Mechanical Analysis of the Effect of Detonator Location and Its Improvement in Bench Blasting. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1196468
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Gao, Qidong…[et al.]. Mathematical and Mechanical Analysis of the Effect of Detonator Location and Its Improvement in Bench Blasting. Mathematical Problems in Engineering No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1196468
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Gao, Qidong& Leng, Zhendong& Yang, Ruipeng& Wang, Yaqiong& Chen, Ming& Sun, Pengchang…[et al.]. Mathematical and Mechanical Analysis of the Effect of Detonator Location and Its Improvement in Bench Blasting. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1196468
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1196468
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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