Numerical simulation study on the relationship between mining heights and shield resistance in longwall panel
A numerical model based on a Continuum-based Distinct Element Method (CDEM) was used to carry out a dynamic simulation of the interaction between shield and rock strata movement in longwall mining. In Northern China, the Ordos coal field geological conditions and operational characteristics were use...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-03-01
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| Series: | International Journal of Mining Science and Technology |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095268617300630 |
| _version_ | 1811279285423439872 |
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| author | Liu Chuang Li Huamin Jiang Dongjie |
| author_facet | Liu Chuang Li Huamin Jiang Dongjie |
| author_sort | Liu Chuang |
| collection | DOAJ |
| description | A numerical model based on a Continuum-based Distinct Element Method (CDEM) was used to carry out a dynamic simulation of the interaction between shield and rock strata movement in longwall mining. In Northern China, the Ordos coal field geological conditions and operational characteristics were used as a case example. The CDEM was constructed on Ordos coal field shield’s operation characteristics and geological conditions. Numerical modelling was carried out to investigate the effects of different mining heights on the caving process, movement characteristics, equilibrium and stability conditions of overburden as the interaction between shield and surrounding rocks. With the numerical model, the internal factors for changes in shield resistance under different mining heights was found. The quantitative relationship between mining heights and shield resistance was also obtained by the numerical simulation. Keywords: Numerical simulation, Shield resistance, Interaction between shield and surrounding rock, Mining heights |
| first_indexed | 2024-04-13T00:51:54Z |
| format | Article |
| id | doaj.art-3ddbe28eff394c3084f211abc777a29e |
| institution | Directory Open Access Journal |
| issn | 2095-2686 |
| language | English |
| last_indexed | 2024-04-13T00:51:54Z |
| publishDate | 2017-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Mining Science and Technology |
| spelling | doaj.art-3ddbe28eff394c3084f211abc777a29e2022-12-22T03:09:50ZengElsevierInternational Journal of Mining Science and Technology2095-26862017-03-01272293297Numerical simulation study on the relationship between mining heights and shield resistance in longwall panelLiu Chuang0Li Huamin1Jiang Dongjie2School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, ChinaSchool of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China; Corresponding author.School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China; School of Safety Science and Engineering, Henan Institute of Engineering, Zhengzhou 451191, ChinaA numerical model based on a Continuum-based Distinct Element Method (CDEM) was used to carry out a dynamic simulation of the interaction between shield and rock strata movement in longwall mining. In Northern China, the Ordos coal field geological conditions and operational characteristics were used as a case example. The CDEM was constructed on Ordos coal field shield’s operation characteristics and geological conditions. Numerical modelling was carried out to investigate the effects of different mining heights on the caving process, movement characteristics, equilibrium and stability conditions of overburden as the interaction between shield and surrounding rocks. With the numerical model, the internal factors for changes in shield resistance under different mining heights was found. The quantitative relationship between mining heights and shield resistance was also obtained by the numerical simulation. Keywords: Numerical simulation, Shield resistance, Interaction between shield and surrounding rock, Mining heightshttp://www.sciencedirect.com/science/article/pii/S2095268617300630 |
| spellingShingle | Liu Chuang Li Huamin Jiang Dongjie Numerical simulation study on the relationship between mining heights and shield resistance in longwall panel International Journal of Mining Science and Technology |
| title | Numerical simulation study on the relationship between mining heights and shield resistance in longwall panel |
| title_full | Numerical simulation study on the relationship between mining heights and shield resistance in longwall panel |
| title_fullStr | Numerical simulation study on the relationship between mining heights and shield resistance in longwall panel |
| title_full_unstemmed | Numerical simulation study on the relationship between mining heights and shield resistance in longwall panel |
| title_short | Numerical simulation study on the relationship between mining heights and shield resistance in longwall panel |
| title_sort | numerical simulation study on the relationship between mining heights and shield resistance in longwall panel |
| url | http://www.sciencedirect.com/science/article/pii/S2095268617300630 |
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