The Calculation of Inelastic Zone Width of Coal Pillar in Highwall Mining With Backfill
Highwall mining with backfill technology will be one of the main techniques of raising the recovery rate of coal resources under the end-slope all over the world in the future, in which the coal pillar setting is the key to ensure the successful application of this technology, and the calculation of...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-07-01
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| Series: | Frontiers in Earth Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.904703/full |
| _version_ | 1818536790358753280 |
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| author | Juyu Jiang Ye Lu Lanzhu Cao Dong Wang Laigui Wang Xinping Han Huiwen Yang Zhengzhao Jia |
| author_facet | Juyu Jiang Ye Lu Lanzhu Cao Dong Wang Laigui Wang Xinping Han Huiwen Yang Zhengzhao Jia |
| author_sort | Juyu Jiang |
| collection | DOAJ |
| description | Highwall mining with backfill technology will be one of the main techniques of raising the recovery rate of coal resources under the end-slope all over the world in the future, in which the coal pillar setting is the key to ensure the successful application of this technology, and the calculation of inelastic zone width of a coal pillar has important guiding significance for the coal pillar setting in highwall mining with backfill. However, at present, in order to accurately calculate the inelastic zone width of a coal pillar under the condition of highwall mining with backfill, a calculation model of the inelastic zone width of highwall mining with backfill independent of empirical parameters is established by using a limit equilibrium method, orthogonal experiment method, and non-linear fitting method. In order to verify the correctness and reliability of the model, this study takes the geological conditions of the Antaibao open-pit mine in Pingshuo, Shanxi Province, China, as the engineering background to verify the calculation accuracy of the model. The results show that the calculation model established in this study can accurately calculate the inelastic zone width of the coal pillar under highwall mining with backfill and can meet the engineering needs. |
| first_indexed | 2024-12-11T18:42:28Z |
| format | Article |
| id | doaj.art-5723dc94b45349d796decc9cbfe6fac1 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-12-11T18:42:28Z |
| publishDate | 2022-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-5723dc94b45349d796decc9cbfe6fac12022-12-22T00:54:35ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632022-07-011010.3389/feart.2022.904703904703The Calculation of Inelastic Zone Width of Coal Pillar in Highwall Mining With BackfillJuyu JiangYe LuLanzhu CaoDong WangLaigui WangXinping HanHuiwen YangZhengzhao JiaHighwall mining with backfill technology will be one of the main techniques of raising the recovery rate of coal resources under the end-slope all over the world in the future, in which the coal pillar setting is the key to ensure the successful application of this technology, and the calculation of inelastic zone width of a coal pillar has important guiding significance for the coal pillar setting in highwall mining with backfill. However, at present, in order to accurately calculate the inelastic zone width of a coal pillar under the condition of highwall mining with backfill, a calculation model of the inelastic zone width of highwall mining with backfill independent of empirical parameters is established by using a limit equilibrium method, orthogonal experiment method, and non-linear fitting method. In order to verify the correctness and reliability of the model, this study takes the geological conditions of the Antaibao open-pit mine in Pingshuo, Shanxi Province, China, as the engineering background to verify the calculation accuracy of the model. The results show that the calculation model established in this study can accurately calculate the inelastic zone width of the coal pillar under highwall mining with backfill and can meet the engineering needs.https://www.frontiersin.org/articles/10.3389/feart.2022.904703/fullhighwall mining with backfillinelastic zone widthcoal pillarcomplete fillingincomplete filling |
| spellingShingle | Juyu Jiang Ye Lu Lanzhu Cao Dong Wang Laigui Wang Xinping Han Huiwen Yang Zhengzhao Jia The Calculation of Inelastic Zone Width of Coal Pillar in Highwall Mining With Backfill Frontiers in Earth Science highwall mining with backfill inelastic zone width coal pillar complete filling incomplete filling |
| title | The Calculation of Inelastic Zone Width of Coal Pillar in Highwall Mining With Backfill |
| title_full | The Calculation of Inelastic Zone Width of Coal Pillar in Highwall Mining With Backfill |
| title_fullStr | The Calculation of Inelastic Zone Width of Coal Pillar in Highwall Mining With Backfill |
| title_full_unstemmed | The Calculation of Inelastic Zone Width of Coal Pillar in Highwall Mining With Backfill |
| title_short | The Calculation of Inelastic Zone Width of Coal Pillar in Highwall Mining With Backfill |
| title_sort | calculation of inelastic zone width of coal pillar in highwall mining with backfill |
| topic | highwall mining with backfill inelastic zone width coal pillar complete filling incomplete filling |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.904703/full |
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