Coal-rock damage evolution characteristics based oninfrared radiation under uniaxial compressio
In order to quantitatively study evolution law between temperater parameter of infrared radiation and coal-rock damage law under uniaxial compression, temperature data of infrared radiation during coal-rock failure process was collected and analyzed. A coal-rock damage model was established accordin...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Industry and Mine Automation
2018-05-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2017110064 |
| _version_ | 1797868911942696960 |
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| author | CHENG Fuqi LI Zhonghui WEI Yang YIN Shan LIU Shuaijie KONG Yanhui |
| author_facet | CHENG Fuqi LI Zhonghui WEI Yang YIN Shan LIU Shuaijie KONG Yanhui |
| author_sort | CHENG Fuqi |
| collection | DOAJ |
| description | In order to quantitatively study evolution law between temperater parameter of infrared radiation and coal-rock damage law under uniaxial compression, temperature data of infrared radiation during coal-rock failure process was collected and analyzed. A coal-rock damage model was established according to damage mechanics theory, so as to obtain relationship between the maximum infrared radiation temperature (MIRT) and coal-rock damage. The results show that: ① The MIRT-time curve has a good correspondence with load-time curve of the coal-rock under loading, and the MIRT can reflect the damage of coal-rock under loading. ② The coal-rock damage model based on infrared radiation temperature accumulation can well reflect evolution, development and failure of cracks in the coal-rock under uniaxial compression. ③ The correlation coefficient between calculated stress based on MIRT accumulation and measured stress is more than 0.8, which is highly correlated, and peak of the calculated stress-strain curve is ahead of the one of the measured stress-strain curve. |
| first_indexed | 2024-04-10T00:04:22Z |
| format | Article |
| id | doaj.art-5397479669704137bc6ef18d33b6b762 |
| institution | Directory Open Access Journal |
| issn | 1671-251X |
| language | zho |
| last_indexed | 2024-04-10T00:04:22Z |
| publishDate | 2018-05-01 |
| publisher | Editorial Department of Industry and Mine Automation |
| record_format | Article |
| series | Gong-kuang zidonghua |
| spelling | doaj.art-5397479669704137bc6ef18d33b6b7622023-03-17T01:19:45ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2018-05-01445647010.13272/j.issn.1671-251x.2017110064Coal-rock damage evolution characteristics based oninfrared radiation under uniaxial compressioCHENG FuqiLI ZhonghuiWEI YangYIN ShanLIU ShuaijieKONG YanhuiIn order to quantitatively study evolution law between temperater parameter of infrared radiation and coal-rock damage law under uniaxial compression, temperature data of infrared radiation during coal-rock failure process was collected and analyzed. A coal-rock damage model was established according to damage mechanics theory, so as to obtain relationship between the maximum infrared radiation temperature (MIRT) and coal-rock damage. The results show that: ① The MIRT-time curve has a good correspondence with load-time curve of the coal-rock under loading, and the MIRT can reflect the damage of coal-rock under loading. ② The coal-rock damage model based on infrared radiation temperature accumulation can well reflect evolution, development and failure of cracks in the coal-rock under uniaxial compression. ③ The correlation coefficient between calculated stress based on MIRT accumulation and measured stress is more than 0.8, which is highly correlated, and peak of the calculated stress-strain curve is ahead of the one of the measured stress-strain curve.http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2017110064coal-rock dynamic disastercoal-rock monitoring and pre-alarmingcoal-rock failure under loadingcoal-rock deformationcoal-rock damage evolutionuniaxial compressioninfrared radiationthe maximum infrared radiation temperature |
| spellingShingle | CHENG Fuqi LI Zhonghui WEI Yang YIN Shan LIU Shuaijie KONG Yanhui Coal-rock damage evolution characteristics based oninfrared radiation under uniaxial compressio Gong-kuang zidonghua coal-rock dynamic disaster coal-rock monitoring and pre-alarming coal-rock failure under loading coal-rock deformation coal-rock damage evolution uniaxial compression infrared radiation the maximum infrared radiation temperature |
| title | Coal-rock damage evolution characteristics based oninfrared radiation under uniaxial compressio |
| title_full | Coal-rock damage evolution characteristics based oninfrared radiation under uniaxial compressio |
| title_fullStr | Coal-rock damage evolution characteristics based oninfrared radiation under uniaxial compressio |
| title_full_unstemmed | Coal-rock damage evolution characteristics based oninfrared radiation under uniaxial compressio |
| title_short | Coal-rock damage evolution characteristics based oninfrared radiation under uniaxial compressio |
| title_sort | coal rock damage evolution characteristics based oninfrared radiation under uniaxial compressio |
| topic | coal-rock dynamic disaster coal-rock monitoring and pre-alarming coal-rock failure under loading coal-rock deformation coal-rock damage evolution uniaxial compression infrared radiation the maximum infrared radiation temperature |
| url | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2017110064 |
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