Experimental Accuracy and Stability of Gas Outburst Experimental System
Gas outburst is an important issue in deep coal mining. At present, the gas-rock coupling change mechanism and intensity prediction of gas outburst are not clear. The research of gas outburst simulation experiment is particularly important. The State Key Laboratory of Gas Disaster Monitoring and Eme...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/6678608 |
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| author | Yanbao Liu Haitao Sun Bo Wang Linchao Dai Jie Cao |
| author_facet | Yanbao Liu Haitao Sun Bo Wang Linchao Dai Jie Cao |
| author_sort | Yanbao Liu |
| collection | DOAJ |
| description | Gas outburst is an important issue in deep coal mining. At present, the gas-rock coupling change mechanism and intensity prediction of gas outburst are not clear. The research of gas outburst simulation experiment is particularly important. The State Key Laboratory of Gas Disaster Monitoring and Emergency Technology of China independently developed a large-scale coal and gas outburst physical simulation test system. However, the influence of the design parameters of the testing machine on the stability and accuracy of the simulation experiment is unclear. The article analyzes the energy conversion in the process of gas outburst through experimental simulation phenomena and results. The experimental simulation results show that the energy released by the CO2 gas in similar materials is the most important energy source. The cracks of similar materials increase the nominal volume of similar materials, and the deformation energy stored in similar materials slightly increases. The experimental simulation results are consistent with the actual situation on site. Combined with CAE simulation analysis, the displacement and pressure of the indenter of the experimental machine remained basically unchanged during the experiment, and the system did not produce resonance. Comprehensive analysis shows that the design of the test machine meets the simulation requirements. |
| format | Article |
| id | doaj-art-7f4aae625b0048b492827a31b7d480ea |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-7f4aae625b0048b492827a31b7d480ea2025-02-03T01:28:18ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/66786086678608Experimental Accuracy and Stability of Gas Outburst Experimental SystemYanbao Liu0Haitao Sun1Bo Wang2Linchao Dai3Jie Cao4State Key Laboratory of the Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing 400037, ChinaState Key Laboratory of the Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing 400037, ChinaState Key Laboratory of the Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing 400037, ChinaState Key Laboratory of the Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing 400037, ChinaState Key Laboratory of the Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing 400037, ChinaGas outburst is an important issue in deep coal mining. At present, the gas-rock coupling change mechanism and intensity prediction of gas outburst are not clear. The research of gas outburst simulation experiment is particularly important. The State Key Laboratory of Gas Disaster Monitoring and Emergency Technology of China independently developed a large-scale coal and gas outburst physical simulation test system. However, the influence of the design parameters of the testing machine on the stability and accuracy of the simulation experiment is unclear. The article analyzes the energy conversion in the process of gas outburst through experimental simulation phenomena and results. The experimental simulation results show that the energy released by the CO2 gas in similar materials is the most important energy source. The cracks of similar materials increase the nominal volume of similar materials, and the deformation energy stored in similar materials slightly increases. The experimental simulation results are consistent with the actual situation on site. Combined with CAE simulation analysis, the displacement and pressure of the indenter of the experimental machine remained basically unchanged during the experiment, and the system did not produce resonance. Comprehensive analysis shows that the design of the test machine meets the simulation requirements.http://dx.doi.org/10.1155/2021/6678608 |
| spellingShingle | Yanbao Liu Haitao Sun Bo Wang Linchao Dai Jie Cao Experimental Accuracy and Stability of Gas Outburst Experimental System Geofluids |
| title | Experimental Accuracy and Stability of Gas Outburst Experimental System |
| title_full | Experimental Accuracy and Stability of Gas Outburst Experimental System |
| title_fullStr | Experimental Accuracy and Stability of Gas Outburst Experimental System |
| title_full_unstemmed | Experimental Accuracy and Stability of Gas Outburst Experimental System |
| title_short | Experimental Accuracy and Stability of Gas Outburst Experimental System |
| title_sort | experimental accuracy and stability of gas outburst experimental system |
| url | http://dx.doi.org/10.1155/2021/6678608 |
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