Influencing factors analysis of hard limestone reformation and strength weakening under acidic effect

Roof disaster has always been an important factor restricting coal mine safety production. Acidic effect can reform the rock mass structure to weaken the macroscopic strength characteristics, which is an effective way to control the hard limestone roof. In this study, the effects of various factors...

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Bibliographic Details
Published in:Journal of Central South University 2024-07, Vol.31 (7), p.2446-2466
Main Authors: Hou, Ming-xiao, Huang, Bing-xiang, Zhao, Xing-long, Jiao, Xue-jie, Zheng, Chen-yang
Format: Article
Language:English
Subjects:
Acidification
Acids
Analytic hierarchy process
Coal mines
Compressive strength
Crystal defects
Damage
Engineering
Hydrogen ions
Hydrogen production
Limestone
Mechanical properties
Metallic Materials
Metathesis
Modulus of elasticity
Occupational safety
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Summary:Roof disaster has always been an important factor restricting coal mine safety production. Acidic effect can reform the rock mass structure to weaken the macroscopic strength characteristics, which is an effective way to control the hard limestone roof. In this study, the effects of various factors on the reaction characteristics and mechanical properties of limestone were analyzed. The results show that the acid with stronger hydrogen production capacity after ionization (p K a
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-024-5735-z