DOI: 10.1007/s11069-021-04948-7
论文题名: Modelling the effects of ground vibrations on the surface due to blasting in underground coal mines
作者: Kumar S. ; Choudhary B.S. ; Mishra A.K.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
语种: 英语
中文关键词: Explicit dynamics
; Maximum charge per delay
; Peak particle velocity
; Underground coal mine
英文摘要: Explosives are still the cheapest source of breaking rock in the mining or tunnelling operation and can be applied in varying geological conditions. It generates various troubles such as ground vibration, air overpressure, and fly rocks. It is well known that the maximum charge per delay (MCPD) has to be optimum for safe blasting and can be achieved through trial blasts, which is a complicated and costly process. Therefore, it is required to reduce the number of trial blasts. In this study, a total of 18 blasts were conducted in an underground coal mine and were simulated using similar ground conditions using Ansys software. The Peak particle velocity values obtained in the mines and through the models were compared. The error in PPV found between the actual and predicted by simulation is less than 15%. It can help us design the MCPD in rock excavation operations, visualise damages using simulation in Ansys software, and economical compared to field trials. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169139
Appears in Collections: 气候变化与战略
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作者单位: Department of Mining Engineering, IIT(ISM) Dhanbad, Dhanbad, Jharkhand 826004, India
Recommended Citation:
Kumar S.,Choudhary B.S.,Mishra A.K.. Modelling the effects of ground vibrations on the surface due to blasting in underground coal mines[J]. Natural Hazards,2021-01-01