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Theoretical Study on Radial Distribution Laws of Rock Mass Damage Factors under Decoupled Charge Blasting
المؤلفون المشاركون
Zhang, Jichun
Pan, Qiang
Zheng, Shuangying
Shi, Hongchao
Fan, Zhanfeng
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-07-28
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
In this paper, the radial distribution laws of damage factors under decoupled charge blasting are studied for the optimization design of blasting parameters.
Through defining the critical radial decoupling coefficient, the damage zone around the borehole is partitioned and the characteristics are described.
Based on the damage factor defined by Taylor’s effective elastic modulus, the formulas of the radial distribution laws of damage factors are derived by the attenuation law of stress wave and the theory of thick-walled cylinder, respectively, which are then superposed to obtain the formula under the combined action of explosion stress wave and quasistatic gas.
Experimental verification indicates that the theoretical values, which have a good correlation with the test data and are of high accuracy, can characterize the radial distribution laws of damage factors and estimate the damage range.
When a radial decoupling coefficient is less than the critical value, the attenuation rate of damage factors firstly increases and then decreases with the increase of distance, and a serious damage zone is caused.
Conversely, it decreases gradually, and the serious damage zone is not caused.
Therefore, on the premise of stable detonation, it is necessary to apply an appropriate radial decoupling coefficient which is larger than the critical value to smooth or presplit blasting.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Pan, Qiang& Zhang, Jichun& Zheng, Shuangying& Shi, Hongchao& Fan, Zhanfeng. 2020. Theoretical Study on Radial Distribution Laws of Rock Mass Damage Factors under Decoupled Charge Blasting. Shock and Vibration،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1210238
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Pan, Qiang…[et al.]. Theoretical Study on Radial Distribution Laws of Rock Mass Damage Factors under Decoupled Charge Blasting. Shock and Vibration No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1210238
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Pan, Qiang& Zhang, Jichun& Zheng, Shuangying& Shi, Hongchao& Fan, Zhanfeng. Theoretical Study on Radial Distribution Laws of Rock Mass Damage Factors under Decoupled Charge Blasting. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1210238
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1210238
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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