Previous Article in Journal
A Review on the Impact of Fallback Factor on Intermittent Gas and Gas-Assisted Plunger Lifts
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Geosciences
Volume 15
Issue 7
10.3390/geosciences15070238
geosciences-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Research on the Distribution and Escape Characteristics of Dust at the Blasting Pile in an Open-Pit Mining Area

by
Yong Cao
1,
Xiaoliang Jiao
1,
Rong Liu
2,3,*,
Haoran Wang
2,4,
Yi He
5,
Jie Chen
2,4,
Xiang Lu
6 and
Huangqing Zhang
2,7
1
Zhunneng Group Co., Ltd., China Energy Investment Corporation, Ordos 010300, China
2
State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
3
Institute of Future Civil Engineering Science and Technology, Chongqing Jiaotong University, Chongqing 400074, China
4
School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China
5
School of Metallurgy and Power Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
6
School of Mines, China University of Mining and Technology, Xuzhou 221116, China
7
FinDreams Industry Co., Ltd., Xiangyang 441100, China
*
Author to whom correspondence should be addressed.
Geosciences 2025, 15(7), 238; https://doi.org/10.3390/geosciences15070238
Submission received: 17 May 2025 / Accepted: 19 June 2025 / Published: 20 June 2025
(This article belongs to the Section Geomechanics)
Versions Notes

Abstract

In open-pit mines, substantial amounts of dust are generated at various stages. Due to the long duration, repeated mechanical disturbance, and large volume of material handled during the shoveling and loading of blasting piles, this stage is recognized as one of the primary contributors to overall dust emissions in open-pit mining operations. The objective of this study is to investigate the spatial dispersion characteristics of dust at blasting piles and evaluate the influence of wind direction on dust migration and escape behavior. This study uses a full-scale numerical model to analyze the airflow and dust migration characteristics at blasting piles under different wind directions. Simulation results show that dust particles of different sizes exhibit distinct dispersion patterns: large particles settle near the source, medium particles migrate a moderate distance, and fine particles (PM2.5 and PM10) travel further and are more likely to escape from the pit. The leeward slope and pit bottom are identified as critical zones of dust accumulation and escape. Under both dump-side and stope-side wind conditions, respirable dust (d < 5 μm) accounts for more than 50% of the escaped particles, posing potential health risks to workers. These findings establish a scientific basis for targeted dust suppression strategies, supporting safer and more sustainable mine site management.
Keywords: open-pit mining; blasting pile; dust; distribution and transport; dispersion patterns open-pit mining; blasting pile; dust; distribution and transport; dispersion patterns

Share and Cite

MDPI and ACS Style

Cao, Y.; Jiao, X.; Liu, R.; Wang, H.; He, Y.; Chen, J.; Lu, X.; Zhang, H. Research on the Distribution and Escape Characteristics of Dust at the Blasting Pile in an Open-Pit Mining Area. Geosciences 2025, 15, 238. https://doi.org/10.3390/geosciences15070238

AMA Style

Cao Y, Jiao X, Liu R, Wang H, He Y, Chen J, Lu X, Zhang H. Research on the Distribution and Escape Characteristics of Dust at the Blasting Pile in an Open-Pit Mining Area. Geosciences. 2025; 15(7):238. https://doi.org/10.3390/geosciences15070238

Chicago/Turabian Style

Cao, Yong, Xiaoliang Jiao, Rong Liu, Haoran Wang, Yi He, Jie Chen, Xiang Lu, and Huangqing Zhang. 2025. "Research on the Distribution and Escape Characteristics of Dust at the Blasting Pile in an Open-Pit Mining Area" Geosciences 15, no. 7: 238. https://doi.org/10.3390/geosciences15070238

APA Style

Cao, Y., Jiao, X., Liu, R., Wang, H., He, Y., Chen, J., Lu, X., & Zhang, H. (2025). Research on the Distribution and Escape Characteristics of Dust at the Blasting Pile in an Open-Pit Mining Area. Geosciences, 15(7), 238. https://doi.org/10.3390/geosciences15070238

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop