Multi-condition simulation analysis of a sliding hydraulic support system based on elastoplastic mechanics
Abstract In response to the challenges of supporting fractured and weak surrounding rock in deep coal mines in the Huainan region of China, a self-moving hydraulic support system for roof support was designed and developed. This innovative solution addresses the difficulties encountered in providing...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-05-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-024-61424-5 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850102885573984256 |
|---|---|
| author | Changji Wang Wanting Wang Yu Guo Dewang Zhao |
| author_facet | Changji Wang Wanting Wang Yu Guo Dewang Zhao |
| author_sort | Changji Wang |
| collection | DOAJ |
| description | Abstract In response to the challenges of supporting fractured and weak surrounding rock in deep coal mines in the Huainan region of China, a self-moving hydraulic support system for roof support was designed and developed. This innovative solution addresses the difficulties encountered in providing continuous support to roof structures. Based on the theory of elastoplastic mechanics, a numerical analysis model was established to calculate the mechanical parameters such as the displacement, stress, and strain of hydraulic supports during the stepping process under multiple operating conditions. The results of the numerical simulation were compared and verified with those from an actual working site. The results show that the maximum equivalent stress is 245.33 MPa for operating condition 1, 246.82 MPa for operating condition 2, and 245.27 MPa for operating condition 3. The maximum stress values under the three working conditions do not exceed the yield strength of the material, satisfying the requirements for normal bracket support operations. These research findings can establish a theoretical framework for the comprehensive assessment of the reliability and stability of hydraulic supports and the optimization of construction processes. |
| format | Article |
| id | doaj-art-efd7663df8a346adba39d271b08038b5 |
| institution | DOAJ |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-efd7663df8a346adba39d271b08038b52025-08-20T02:39:40ZengNature PortfolioScientific Reports2045-23222024-05-0114111310.1038/s41598-024-61424-5Multi-condition simulation analysis of a sliding hydraulic support system based on elastoplastic mechanicsChangji Wang0Wanting Wang1Yu Guo2Dewang Zhao3School of Chemical and Blasting Engineering, Anhui University of Science and TechnologySchool of Mechatronics Engineering, Anhui University of Science and TechnologyArchitectural Engineering BranchSchool of Mechatronics Engineering, Anhui University of Science and TechnologyAbstract In response to the challenges of supporting fractured and weak surrounding rock in deep coal mines in the Huainan region of China, a self-moving hydraulic support system for roof support was designed and developed. This innovative solution addresses the difficulties encountered in providing continuous support to roof structures. Based on the theory of elastoplastic mechanics, a numerical analysis model was established to calculate the mechanical parameters such as the displacement, stress, and strain of hydraulic supports during the stepping process under multiple operating conditions. The results of the numerical simulation were compared and verified with those from an actual working site. The results show that the maximum equivalent stress is 245.33 MPa for operating condition 1, 246.82 MPa for operating condition 2, and 245.27 MPa for operating condition 3. The maximum stress values under the three working conditions do not exceed the yield strength of the material, satisfying the requirements for normal bracket support operations. These research findings can establish a theoretical framework for the comprehensive assessment of the reliability and stability of hydraulic supports and the optimization of construction processes.https://doi.org/10.1038/s41598-024-61424-5Coal mine in the Huainan areaSelf-moving hydraulic support without repeated roof supportElastoplastic mechanicsNumerical simulation |
| spellingShingle | Changji Wang Wanting Wang Yu Guo Dewang Zhao Multi-condition simulation analysis of a sliding hydraulic support system based on elastoplastic mechanics Scientific Reports Coal mine in the Huainan area Self-moving hydraulic support without repeated roof support Elastoplastic mechanics Numerical simulation |
| title | Multi-condition simulation analysis of a sliding hydraulic support system based on elastoplastic mechanics |
| title_full | Multi-condition simulation analysis of a sliding hydraulic support system based on elastoplastic mechanics |
| title_fullStr | Multi-condition simulation analysis of a sliding hydraulic support system based on elastoplastic mechanics |
| title_full_unstemmed | Multi-condition simulation analysis of a sliding hydraulic support system based on elastoplastic mechanics |
| title_short | Multi-condition simulation analysis of a sliding hydraulic support system based on elastoplastic mechanics |
| title_sort | multi condition simulation analysis of a sliding hydraulic support system based on elastoplastic mechanics |
| topic | Coal mine in the Huainan area Self-moving hydraulic support without repeated roof support Elastoplastic mechanics Numerical simulation |
| url | https://doi.org/10.1038/s41598-024-61424-5 |
| work_keys_str_mv | AT changjiwang multiconditionsimulationanalysisofaslidinghydraulicsupportsystembasedonelastoplasticmechanics AT wantingwang multiconditionsimulationanalysisofaslidinghydraulicsupportsystembasedonelastoplasticmechanics AT yuguo multiconditionsimulationanalysisofaslidinghydraulicsupportsystembasedonelastoplasticmechanics AT dewangzhao multiconditionsimulationanalysisofaslidinghydraulicsupportsystembasedonelastoplasticmechanics |