Experimental Study on Explosion Pressure and Rock Breaking Characteristics under Liquid Carbon Dioxide Blasting
Joint Authors
Deng, Hongwei
Li, Jielin
Zhang, Yanan
Deng, Junren
Ke, Bo
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-08-27
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
A liquid carbon dioxide blasting experiment was carried out under free field conditions, alongside a liquid carbon dioxide rock breaking experiment, to investigate explosion pressure variation and rock breaking characteristics under liquid carbon dioxide blasting.
The experimental results show that the internal and external explosion pressures of the liquid carbon dioxide fracturing devices all rapidly increased at first, before attenuating vibrantly after blasting.
When the explosion pressure was raised, the internal explosion pressure increased first exponentially and then linearly, while the external explosion pressure increased exponentially throughout.
The duration time of the blasting effect stage was about 45 ms.
Under the combined effect of jet impingement and a gas wedge of high-pressure carbon dioxide, the rock is subjected to tensile failure.
The impact failure and the “gas wedge effect” of high-pressure carbon dioxide play a key role in the rock breaking of liquid carbon dioxide blasting technology.
American Psychological Association (APA)
Zhang, Yanan& Deng, Junren& Ke, Bo& Deng, Hongwei& Li, Jielin. 2018. Experimental Study on Explosion Pressure and Rock Breaking Characteristics under Liquid Carbon Dioxide Blasting. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1116609
Modern Language Association (MLA)
Zhang, Yanan…[et al.]. Experimental Study on Explosion Pressure and Rock Breaking Characteristics under Liquid Carbon Dioxide Blasting. Advances in Civil Engineering No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1116609
American Medical Association (AMA)
Zhang, Yanan& Deng, Junren& Ke, Bo& Deng, Hongwei& Li, Jielin. Experimental Study on Explosion Pressure and Rock Breaking Characteristics under Liquid Carbon Dioxide Blasting. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1116609
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116609