Influence of Different Mining Parameters on Collaborative Bearing Characteristics Between Hydraulic Supports and Surrounding Rock Coupling System
Hydraulic support (Hs) is an important support equipment in coal mining. With the continuous increase in coal mining intensity, stricter technical specifications have been put forward for the effectiveness of Hs. Hs is always in a dynamic coupling state with the surrounding rock. Investigating its d...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-07-01
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| Series: | Machines |
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| Online Access: | https://www.mdpi.com/2075-1702/13/7/577 |
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| author | Zhaosheng Meng Jiacheng Wang Xiaowan Lei Penghui Xu |
| author_facet | Zhaosheng Meng Jiacheng Wang Xiaowan Lei Penghui Xu |
| author_sort | Zhaosheng Meng |
| collection | DOAJ |
| description | Hydraulic support (Hs) is an important support equipment in coal mining. With the continuous increase in coal mining intensity, stricter technical specifications have been put forward for the effectiveness of Hs. Hs is always in a dynamic coupling state with the surrounding rock. Investigating its dynamic adaptation characteristics in relation to surrounding rock is of great significance for improving its performance. In this work, a numerical analysis model of the ‘support–surrounding rock’ coupling system was established by taking the Hs (type ZZ 17000/33/72D) in the Kouzidong coal mine as an example and using explicit dynamic analysis software Ls-dyna R12. The dynamic response and pressure distribution characteristics of the hydraulic ‘support–surrounding rock’ coupling system under different mining heights and load conditions were investigated. The key vulnerable connection components of the Hs and their critical connection unit instability conditions were identified. These findings provide a theoretical basis for the structural optimization of four-column Hs, which will be beneficial in promoting the improvement of its load-bearing stability. |
| format | Article |
| id | doaj-art-92955f6b5582497dbbdd4df1c08c1146 |
| institution | Kabale University |
| issn | 2075-1702 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj-art-92955f6b5582497dbbdd4df1c08c11462025-08-20T03:58:31ZengMDPI AGMachines2075-17022025-07-0113757710.3390/machines13070577Influence of Different Mining Parameters on Collaborative Bearing Characteristics Between Hydraulic Supports and Surrounding Rock Coupling SystemZhaosheng Meng0Jiacheng Wang1Xiaowan Lei2Penghui Xu3College of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaHydraulic support (Hs) is an important support equipment in coal mining. With the continuous increase in coal mining intensity, stricter technical specifications have been put forward for the effectiveness of Hs. Hs is always in a dynamic coupling state with the surrounding rock. Investigating its dynamic adaptation characteristics in relation to surrounding rock is of great significance for improving its performance. In this work, a numerical analysis model of the ‘support–surrounding rock’ coupling system was established by taking the Hs (type ZZ 17000/33/72D) in the Kouzidong coal mine as an example and using explicit dynamic analysis software Ls-dyna R12. The dynamic response and pressure distribution characteristics of the hydraulic ‘support–surrounding rock’ coupling system under different mining heights and load conditions were investigated. The key vulnerable connection components of the Hs and their critical connection unit instability conditions were identified. These findings provide a theoretical basis for the structural optimization of four-column Hs, which will be beneficial in promoting the improvement of its load-bearing stability.https://www.mdpi.com/2075-1702/13/7/577large mining heightfour-column hydraulic supportperimeter rock couplingconnection unit |
| spellingShingle | Zhaosheng Meng Jiacheng Wang Xiaowan Lei Penghui Xu Influence of Different Mining Parameters on Collaborative Bearing Characteristics Between Hydraulic Supports and Surrounding Rock Coupling System Machines large mining height four-column hydraulic support perimeter rock coupling connection unit |
| title | Influence of Different Mining Parameters on Collaborative Bearing Characteristics Between Hydraulic Supports and Surrounding Rock Coupling System |
| title_full | Influence of Different Mining Parameters on Collaborative Bearing Characteristics Between Hydraulic Supports and Surrounding Rock Coupling System |
| title_fullStr | Influence of Different Mining Parameters on Collaborative Bearing Characteristics Between Hydraulic Supports and Surrounding Rock Coupling System |
| title_full_unstemmed | Influence of Different Mining Parameters on Collaborative Bearing Characteristics Between Hydraulic Supports and Surrounding Rock Coupling System |
| title_short | Influence of Different Mining Parameters on Collaborative Bearing Characteristics Between Hydraulic Supports and Surrounding Rock Coupling System |
| title_sort | influence of different mining parameters on collaborative bearing characteristics between hydraulic supports and surrounding rock coupling system |
| topic | large mining height four-column hydraulic support perimeter rock coupling connection unit |
| url | https://www.mdpi.com/2075-1702/13/7/577 |
| work_keys_str_mv | AT zhaoshengmeng influenceofdifferentminingparametersoncollaborativebearingcharacteristicsbetweenhydraulicsupportsandsurroundingrockcouplingsystem AT jiachengwang influenceofdifferentminingparametersoncollaborativebearingcharacteristicsbetweenhydraulicsupportsandsurroundingrockcouplingsystem AT xiaowanlei influenceofdifferentminingparametersoncollaborativebearingcharacteristicsbetweenhydraulicsupportsandsurroundingrockcouplingsystem AT penghuixu influenceofdifferentminingparametersoncollaborativebearingcharacteristicsbetweenhydraulicsupportsandsurroundingrockcouplingsystem |