Mechanical properties experiment of load capacity on a mechanical yielding steel prop (MYSP) and its application in roadway support
As the coal mining depth increases year by year, the deformation and failure of deep roadway become more serious. Therefore, new support equipment with high supporting force and yieldable character is quite necessary for mining safety. In this research, a new mechanical yielding steel prop (MYSP)...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/15616/ http://journalarticle.ukm.my/15616/1/5.pdf |
| _version_ | 1848813841658413056 |
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| author | Chen, Yanlong Hai, Pu Peng, Wu Wu, Haoshuai Yu, Wu Yang, Hao Goh, Thian Lai Azrin Azmi, Abdurrahman, Muslim |
| author_facet | Chen, Yanlong Hai, Pu Peng, Wu Wu, Haoshuai Yu, Wu Yang, Hao Goh, Thian Lai Azrin Azmi, Abdurrahman, Muslim |
| author_sort | Chen, Yanlong |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | As the coal mining depth increases year by year, the deformation and failure of deep roadway become more serious.
Therefore, new support equipment with high supporting force and yieldable character is quite necessary for mining
safety. In this research, a new mechanical yielding steel prop (MYSP) with high stable load capacity was introduced,
which features sustaining large deformation in the field. The test shows that the load capacity provided by doublelayer steel balls is greater than that of single-layer steel balls, and that provided by high-hardness steel balls is higher
than that of low-hardness steel balls. When double-layer high-hardness steel balls are adopted, the load capacity firstly
increases and then remains stable with the increase of displacement, while it firstly increases and then decreases
and finally remains stable with the increase of displacement when double-layer low-hardness steel balls are adopted.
The load capacity decreases with the increase of inclined angle of the outer tube, but the influence of the inclined
angle of the outer tube on load capacity provided by high-hardness steel balls is small. The load capacity increases
gradually with the yielding strength of the prop. Therefore, the MYSP with different load capacities can be designed by
changing the yielding strength of the outer tube and inner tube. The field application shows that the MYSP has good
characteristics of yielding and high constant resistance. It is very effective for controlling the deformation of surrounding rock mass using the MYSP for roadway pre-support, which also reduces the supporting cost significantly. |
| first_indexed | 2025-11-15T00:24:36Z |
| format | Article |
| id | oai:generic.eprints.org:15616 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:24:36Z |
| publishDate | 2020 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:156162020-11-10T08:54:58Z http://journalarticle.ukm.my/15616/ Mechanical properties experiment of load capacity on a mechanical yielding steel prop (MYSP) and its application in roadway support Chen, Yanlong Hai, Pu Peng, Wu Wu, Haoshuai Yu, Wu Yang, Hao Goh, Thian Lai Azrin Azmi, Abdurrahman, Muslim As the coal mining depth increases year by year, the deformation and failure of deep roadway become more serious. Therefore, new support equipment with high supporting force and yieldable character is quite necessary for mining safety. In this research, a new mechanical yielding steel prop (MYSP) with high stable load capacity was introduced, which features sustaining large deformation in the field. The test shows that the load capacity provided by doublelayer steel balls is greater than that of single-layer steel balls, and that provided by high-hardness steel balls is higher than that of low-hardness steel balls. When double-layer high-hardness steel balls are adopted, the load capacity firstly increases and then remains stable with the increase of displacement, while it firstly increases and then decreases and finally remains stable with the increase of displacement when double-layer low-hardness steel balls are adopted. The load capacity decreases with the increase of inclined angle of the outer tube, but the influence of the inclined angle of the outer tube on load capacity provided by high-hardness steel balls is small. The load capacity increases gradually with the yielding strength of the prop. Therefore, the MYSP with different load capacities can be designed by changing the yielding strength of the outer tube and inner tube. The field application shows that the MYSP has good characteristics of yielding and high constant resistance. It is very effective for controlling the deformation of surrounding rock mass using the MYSP for roadway pre-support, which also reduces the supporting cost significantly. Penerbit Universiti Kebangsaan Malaysia 2020-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/15616/1/5.pdf Chen, Yanlong and Hai, Pu and Peng, Wu and Wu, Haoshuai and Yu, Wu and Yang, Hao and Goh, Thian Lai and Azrin Azmi, and Abdurrahman, Muslim (2020) Mechanical properties experiment of load capacity on a mechanical yielding steel prop (MYSP) and its application in roadway support. Sains Malaysiana, 49 (7). pp. 1521-1531. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid49bil7_2020/KandunganJilid49Bil7_2020.html |
| spellingShingle | Chen, Yanlong Hai, Pu Peng, Wu Wu, Haoshuai Yu, Wu Yang, Hao Goh, Thian Lai Azrin Azmi, Abdurrahman, Muslim Mechanical properties experiment of load capacity on a mechanical yielding steel prop (MYSP) and its application in roadway support |
| title | Mechanical properties experiment of load capacity on a mechanical yielding steel prop (MYSP) and its application in roadway support |
| title_full | Mechanical properties experiment of load capacity on a mechanical yielding steel prop (MYSP) and its application in roadway support |
| title_fullStr | Mechanical properties experiment of load capacity on a mechanical yielding steel prop (MYSP) and its application in roadway support |
| title_full_unstemmed | Mechanical properties experiment of load capacity on a mechanical yielding steel prop (MYSP) and its application in roadway support |
| title_short | Mechanical properties experiment of load capacity on a mechanical yielding steel prop (MYSP) and its application in roadway support |
| title_sort | mechanical properties experiment of load capacity on a mechanical yielding steel prop (mysp) and its application in roadway support |
| url | http://journalarticle.ukm.my/15616/ http://journalarticle.ukm.my/15616/ http://journalarticle.ukm.my/15616/1/5.pdf |