Study of the Penetration and Diffusion Characteristics of Inorganic Solidified Foam in Rock Fractures
To explore the penetration and diffusion law in coal and rock fractures when inorganic solidified foam (ISF) is used to prevent coal fire, the penetration experiment was conducted; the results showed that the penetration pressure fluctuates within a certain range and decreases with the diffusion dis...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/3781560 |
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| author | Yi Lu Tao Wang Qing Ye |
| author_facet | Yi Lu Tao Wang Qing Ye |
| author_sort | Yi Lu |
| collection | DOAJ |
| description | To explore the penetration and diffusion law in coal and rock fractures when inorganic solidified foam (ISF) is used to prevent coal fire, the penetration experiment was conducted; the results showed that the penetration pressure fluctuates within a certain range and decreases with the diffusion distance. In the XY plane, the diffusion pattern presents an ellipsoid shape, and the diffusion area becomes increasingly large over time; in the XZ plane, the foam fluid penetration changes from dense to loose in the X direction and it does not undergo downward penetration and diffuses via its own weight in the Z direction; in the YZ plane, it is loose on the left and dense on the right. The viscosity of ISF was tested and then the time-varying formula was fitted. The formula of the effective diffusion radius for foam fluid diffusing in the fracture channel was determined theoretically. The permeability coefficient and other related parameters were calculated in terms of the penetration pressure and diffusion time of two monitoring points. At last, the prediction formula of effective diffusion distance of foam fluid was verified with the remaining seven monitoring points and all the relative error of monitoring is within 10%. |
| format | Article |
| id | doaj-art-9454c3707f2142699ff52d3debc9a38e |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-9454c3707f2142699ff52d3debc9a38e2025-02-03T05:44:58ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/37815603781560Study of the Penetration and Diffusion Characteristics of Inorganic Solidified Foam in Rock FracturesYi Lu0Tao Wang1Qing Ye2Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan University of Science and Technology, Xiangtan, Hunan 411201, ChinaSchool of Resource, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, ChinaSchool of Resource, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, ChinaTo explore the penetration and diffusion law in coal and rock fractures when inorganic solidified foam (ISF) is used to prevent coal fire, the penetration experiment was conducted; the results showed that the penetration pressure fluctuates within a certain range and decreases with the diffusion distance. In the XY plane, the diffusion pattern presents an ellipsoid shape, and the diffusion area becomes increasingly large over time; in the XZ plane, the foam fluid penetration changes from dense to loose in the X direction and it does not undergo downward penetration and diffuses via its own weight in the Z direction; in the YZ plane, it is loose on the left and dense on the right. The viscosity of ISF was tested and then the time-varying formula was fitted. The formula of the effective diffusion radius for foam fluid diffusing in the fracture channel was determined theoretically. The permeability coefficient and other related parameters were calculated in terms of the penetration pressure and diffusion time of two monitoring points. At last, the prediction formula of effective diffusion distance of foam fluid was verified with the remaining seven monitoring points and all the relative error of monitoring is within 10%.http://dx.doi.org/10.1155/2017/3781560 |
| spellingShingle | Yi Lu Tao Wang Qing Ye Study of the Penetration and Diffusion Characteristics of Inorganic Solidified Foam in Rock Fractures Advances in Materials Science and Engineering |
| title | Study of the Penetration and Diffusion Characteristics of Inorganic Solidified Foam in Rock Fractures |
| title_full | Study of the Penetration and Diffusion Characteristics of Inorganic Solidified Foam in Rock Fractures |
| title_fullStr | Study of the Penetration and Diffusion Characteristics of Inorganic Solidified Foam in Rock Fractures |
| title_full_unstemmed | Study of the Penetration and Diffusion Characteristics of Inorganic Solidified Foam in Rock Fractures |
| title_short | Study of the Penetration and Diffusion Characteristics of Inorganic Solidified Foam in Rock Fractures |
| title_sort | study of the penetration and diffusion characteristics of inorganic solidified foam in rock fractures |
| url | http://dx.doi.org/10.1155/2017/3781560 |
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