Study on the abutment pressure distribution in top coal caving
The investigation on the deformation and failure of top coal and its roof strata is the key topic of fundamental research of the fully mechanized top coal caving method. In this paper, the mechanical model of continuous damage and failure of top coal is established based on damage mechanics and stat...
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| Published in | Arabian journal of geosciences Vol. 13; no. 4 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.02.2020
Springer Nature B.V |
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| Abstract | The investigation on the deformation and failure of top coal and its roof strata is the key topic of fundamental research of the fully mechanized top coal caving method. In this paper, the mechanical model of continuous damage and failure of top coal is established based on damage mechanics and statistical strength theory. Owing to the declining of horizontal pressure in top coal during caving, the distribution of the abutment pressure is also studied. The theoretical results are in agreement with the experimental data. |
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| AbstractList | The investigation on the deformation and failure of top coal and its roof strata is the key topic of fundamental research of the fully mechanized top coal caving method. In this paper, the mechanical model of continuous damage and failure of top coal is established based on damage mechanics and statistical strength theory. Owing to the declining of horizontal pressure in top coal during caving, the distribution of the abutment pressure is also studied. The theoretical results are in agreement with the experimental data. |
| ArticleNumber | 162 |
| Author | Yu, Bin Zhang, Lingfan |
| Author_xml | – sequence: 1 givenname: Bin surname: Yu fullname: Yu, Bin organization: Datong Coal Mine Group Co., Ltd – sequence: 2 givenname: Lingfan surname: Zhang fullname: Zhang, Lingfan email: zhanglf@student.cumtb.edu.cn organization: College of Mechanics and Civil Engineering, China University of Mining & Technology |
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| Cites_doi | 10.1016/S0013-7944(98)00067-8 10.1016/j.coal.2005.05.008 10.1007/s12517-019-4678-4 10.1016/S0148-9062(99)00034-0 10.1016/0020-7683(87)90076-X 10.1016/S0148-9062(99)00027-3 10.1007/s12517-018-3987-3 10.1115/1.3157739 10.1063/1.5113661 10.1016/S1365-1609(99)00122-7 10.1016/0020-7225(79)90058-2 10.1016/S0148-9062(97)00009-0 10.1016/S1365-1609(99)00121-5 |
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| Keywords | Top coal caving method The three dimensional constitutive equation The distribution of the abutment pressure |
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| SubjectTerms | Coal Damage Deformation Distribution Earth and Environmental Science Earth science Earth Sciences Mechanics Original Paper Pressure Pressure distribution Stress concentration |
| Title | Study on the abutment pressure distribution in top coal caving |
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