Increasing Oxygen Mass Fraction in Blind Headings of a Plateau Metal Mine by Oxygen Supply Duct Design: A CFD Modelling Approach
Joint Authors
Li, Zijun
Zhao, Shuqi
Li, Rongrong
Huang, Yilong
Xu, Yu
Song, Pinfang
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-05-04
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Hypoxia problem has always been a difficult point in plateau tunneling projects.
To solve this problem, a blind heading face in a plateau metal mine in western China was taken as the physical model, and the computational fluid dynamics was used to analyze the oxygen mass fraction distribution and oxygen-increasing effect in 1 m, 3 m, and 5 m roadway sections from the heading face.
The optimal ventilation system was first built to obtain the optimum height and length of the airflow ducts.
Then different cases with various oxygen supply duct designs were built in 2 scenarios.
The results found that different oxygen supply duct design has significant influence on the oxygen distribution in the heading face.
Also, each design has different optimal height of oxygen outlet.
The oxygen supply effect is best when some small holes are made in the oxygen supply duct to diffuse oxygen to the working surface.
The finding of this paper is helpful for effective and economical oxygen supply in roadway excavation of plateau metal mine and tunnel.
American Psychological Association (APA)
Li, Zijun& Zhao, Shuqi& Li, Rongrong& Huang, Yilong& Xu, Yu& Song, Pinfang. 2020. Increasing Oxygen Mass Fraction in Blind Headings of a Plateau Metal Mine by Oxygen Supply Duct Design: A CFD Modelling Approach. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1201195
Modern Language Association (MLA)
Li, Zijun…[et al.]. Increasing Oxygen Mass Fraction in Blind Headings of a Plateau Metal Mine by Oxygen Supply Duct Design: A CFD Modelling Approach. Mathematical Problems in Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1201195
American Medical Association (AMA)
Li, Zijun& Zhao, Shuqi& Li, Rongrong& Huang, Yilong& Xu, Yu& Song, Pinfang. Increasing Oxygen Mass Fraction in Blind Headings of a Plateau Metal Mine by Oxygen Supply Duct Design: A CFD Modelling Approach. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1201195
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1201195