Method to Calculate Mining-Induced Fracture Based on the Movement and Deformation of Overburden Strata
Mining-induced fracture of overburden strata is intimately related to underground water disasters in coal mining. In this work, we develop an analytical model that uses the probability integral method to calculate the subsidence of the subsurface and the overburden strata. In the developed model, ac...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/9965466 |
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| author | Guo-sheng Xu Hui-gui Li De-hai Li Yan-bin Zhang |
| author_facet | Guo-sheng Xu Hui-gui Li De-hai Li Yan-bin Zhang |
| author_sort | Guo-sheng Xu |
| collection | DOAJ |
| description | Mining-induced fracture of overburden strata is intimately related to underground water disasters in coal mining. In this work, we develop an analytical model that uses the probability integral method to calculate the subsidence of the subsurface and the overburden strata. In the developed model, according to the failure characteristics of the mining-induced strata, the horizontal deformation of the strata is expressed by the tensile rate of the elastic plate’s neutral plane to reflect the degree of fracture initiation and expansion. The distribution of the water-flowing fractured zone (WFZ) in the overburden strata is calculated by substituting the probability integral function of overburden strata movement into the equation of layer tensile rate. The panel 31071 in Peigou coal mine is taken as a case study, and the height of the water-flowing fractured zone (HWFZ) is determined by the proposed method. Conventional empirical methods and the proposed method are used to predict HWFZ in panels with mining schemes, and the results show that the model is particularly advantageous for inclined coal seam mining where the inclined mining size gradually increases and the coal seam burial depth gradually decreases. In such kind of situations, the overburden strata movement and deformation intensify and the mining fracture develops further with the progress of mining, a feature considered poorly by conventional empirical methods but well represented in the proposed method. |
| format | Article |
| id | doaj-art-12bee9b13a804b198ab8ab86d9c7baba |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-12bee9b13a804b198ab8ab86d9c7baba2025-08-20T03:54:20ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/99654669965466Method to Calculate Mining-Induced Fracture Based on the Movement and Deformation of Overburden StrataGuo-sheng Xu0Hui-gui Li1De-hai Li2Yan-bin Zhang3College of Mining Engineering, Guizhou University of Engineering Science, Bijie 551700, ChinaCollege of Mining Engineering, Guizhou University of Engineering Science, Bijie 551700, ChinaMing Research Institute, Henan Polytechnic University, Jiaozuo 454000, ChinaCollege of Continuing Education, Henan Polytechnic University, Jiaozuo 454000, ChinaMining-induced fracture of overburden strata is intimately related to underground water disasters in coal mining. In this work, we develop an analytical model that uses the probability integral method to calculate the subsidence of the subsurface and the overburden strata. In the developed model, according to the failure characteristics of the mining-induced strata, the horizontal deformation of the strata is expressed by the tensile rate of the elastic plate’s neutral plane to reflect the degree of fracture initiation and expansion. The distribution of the water-flowing fractured zone (WFZ) in the overburden strata is calculated by substituting the probability integral function of overburden strata movement into the equation of layer tensile rate. The panel 31071 in Peigou coal mine is taken as a case study, and the height of the water-flowing fractured zone (HWFZ) is determined by the proposed method. Conventional empirical methods and the proposed method are used to predict HWFZ in panels with mining schemes, and the results show that the model is particularly advantageous for inclined coal seam mining where the inclined mining size gradually increases and the coal seam burial depth gradually decreases. In such kind of situations, the overburden strata movement and deformation intensify and the mining fracture develops further with the progress of mining, a feature considered poorly by conventional empirical methods but well represented in the proposed method.http://dx.doi.org/10.1155/2021/9965466 |
| spellingShingle | Guo-sheng Xu Hui-gui Li De-hai Li Yan-bin Zhang Method to Calculate Mining-Induced Fracture Based on the Movement and Deformation of Overburden Strata Shock and Vibration |
| title | Method to Calculate Mining-Induced Fracture Based on the Movement and Deformation of Overburden Strata |
| title_full | Method to Calculate Mining-Induced Fracture Based on the Movement and Deformation of Overburden Strata |
| title_fullStr | Method to Calculate Mining-Induced Fracture Based on the Movement and Deformation of Overburden Strata |
| title_full_unstemmed | Method to Calculate Mining-Induced Fracture Based on the Movement and Deformation of Overburden Strata |
| title_short | Method to Calculate Mining-Induced Fracture Based on the Movement and Deformation of Overburden Strata |
| title_sort | method to calculate mining induced fracture based on the movement and deformation of overburden strata |
| url | http://dx.doi.org/10.1155/2021/9965466 |
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