Experimental Study on Acoustic Emission of Confined Compression of Crushed Gangue under Different Loading Rates: Disposal of Gangue Solid Waste
Abstract
:1. Introduction
2. Materials and Methods
2.1. Material Characterization
2.2. Sample Preparation
2.3. Experimental Design
2.4. Test Scheme
3. Results and Discussion
3.1. Characteristics of Deformation Resistance
3.2. Crushing Characteristics
3.3. Acoustic Emission Characteristics
3.4. A comparative Discussion with Existing Studies
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Experimental scheme number | #1 | #2 | #3 | #4 | #5 | #6 | #7 |
Loading rate (kN/s) | 0.5 | 1.0 | 1.5 | 2.0 | 5.0 | 10.0 | 15.0 |
Sample name | Percentage content of each particle size/% | Crushing rate Bg/% | ||||||
0~10 mm | 10~20 mm | 20~30 mm | 30~40 mm | 40~50 mm | 50~60 mm | |||
Before the test | 0 | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 | 0 | |
After the test (loading rate) | 0.5 kN/s | 46.84 | 19.28 | 14.56 | 9.75 | 8.84 | 0.72 | 26.84 |
1 kN/s | 44.34 | 20.97 | 13.00 | 9.19 | 10.56 | 1.94 | 25.31 | |
1.5 kN/s | 44.66 | 22.66 | 16.25 | 9.91 | 3.59 | 2.94 | 27.32 | |
2 kN/s | 42.06 | 21.44 | 16.31 | 9.84 | 10.34 | 23.50 | ||
5 kN/s | 40.47 | 23.84 | 14.25 | 8.56 | 8.91 | 3.97 | 24.31 | |
10 kN/s | 41.34 | 19.94 | 14.22 | 10.31 | 10.75 | 3.44 | 21.34 | |
15 kN/s | 40.13 | 21.75 | 14.53 | 9.94 | 6.37 | 7.28 | 21.88 |
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Li, J.; Huang, Y.; Zhai, W.; Li, Y.; Ouyang, S.; Gao, H.; Li, W.; Ma, K.; Wu, L. Experimental Study on Acoustic Emission of Confined Compression of Crushed Gangue under Different Loading Rates: Disposal of Gangue Solid Waste. Sustainability 2020, 12, 3911. https://doi.org/10.3390/su12093911
Li J, Huang Y, Zhai W, Li Y, Ouyang S, Gao H, Li W, Ma K, Wu L. Experimental Study on Acoustic Emission of Confined Compression of Crushed Gangue under Different Loading Rates: Disposal of Gangue Solid Waste. Sustainability. 2020; 12(9):3911. https://doi.org/10.3390/su12093911
Chicago/Turabian StyleLi, Junmeng, Yanli Huang, Wen Zhai, Yingshun Li, Shenyang Ouyang, Huadong Gao, Wei Li, Kun Ma, and Laiwei Wu. 2020. "Experimental Study on Acoustic Emission of Confined Compression of Crushed Gangue under Different Loading Rates: Disposal of Gangue Solid Waste" Sustainability 12, no. 9: 3911. https://doi.org/10.3390/su12093911