Research on surface movement and deformation characteristics of loess gully landform in Northern Shaanxi
In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the Ningtiaota Mine has been systematically monitored...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Guomou SHI [verfasserIn] Lijia ZHANG [verfasserIn] Zhenqi HU [verfasserIn] Yaokun FU [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Chinesisch |
| Erschienen: |
2023 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
In: Meitan kexue jishu - Editorial Department of Coal Science and Technology, 2022, 51(2023), 4, Seite 157-165 |
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| Übergeordnetes Werk: |
volume:51 ; year:2023 ; number:4 ; pages:157-165 |
| Links: |
|---|
| DOI / URN: |
10.13199/j.cnki.cst.2021-0626 |
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| Katalog-ID: |
DOAJ100976697 |
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| 520 | |a In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the Ningtiaota Mine has been systematically monitored for surface subsidence to analyze the high-intensity mining conditions Deformation characteristics of the ground surface subsidence, determine the maximum surface subsidence speed and the maximum subsidence speed lag angle, surface movement time and dynamic surface movement parameters. The results of the study show that the discontinuous deformation and destruction of the surface in high-strength coal mining in the collapsible loess layer in northern Shaanxi are severe, and the loess surface is easily affected by the combined effects of movement and deformation and topographic conditions, resulting in uneven settlement. Under high-strength mining conditions, the surface movement and deformation are severely developed , The maximum surface subsidence value is 5255 mm, the maximum horizontal movement value is 2680 mm, the maximum subsidence speed is 187.4 mm/d, the maximum subsidence coefficient of single coal seam mining is 0.63, the maximum subsidence coefficient of oblique repeated mining is 0.84, the active period is about 55 d, and the period of subsidence is about 55 d. The amount accounts for 97% of the total subsidence, the maximum lagging distance of the down-town velocity is 74 m, and the maximum lagging angle of the sinking velocity is 67°. The above results verify that in the high-intensity mining of shallow coal seams, the surface subsidence is proportional to the geological mining factors when the ground subsidence is severe, the activity period is short, and the mining is repeated. The surface deformation of high-intensity mining in the valley terrain has the characteristics of fast speed, large collapse and heavy damage. | ||
| 650 | 4 | |a loess gully area | |
| 650 | 4 | |a surface subsidence | |
| 650 | 4 | |a subsidence velocity | |
| 650 | 4 | |a movement and deformation law | |
| 650 | 4 | |a dynamic change | |
| 653 | 0 | |a Mining engineering. Metallurgy | |
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10.13199/j.cnki.cst.2021-0626 doi (DE-627)DOAJ100976697 (DE-599)DOAJ5c159426426d42828dcab005cfae5360 DE-627 ger DE-627 rakwb chi TN1-997 Guomou SHI verfasserin aut Research on surface movement and deformation characteristics of loess gully landform in Northern Shaanxi 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the Ningtiaota Mine has been systematically monitored for surface subsidence to analyze the high-intensity mining conditions Deformation characteristics of the ground surface subsidence, determine the maximum surface subsidence speed and the maximum subsidence speed lag angle, surface movement time and dynamic surface movement parameters. The results of the study show that the discontinuous deformation and destruction of the surface in high-strength coal mining in the collapsible loess layer in northern Shaanxi are severe, and the loess surface is easily affected by the combined effects of movement and deformation and topographic conditions, resulting in uneven settlement. Under high-strength mining conditions, the surface movement and deformation are severely developed , The maximum surface subsidence value is 5255 mm, the maximum horizontal movement value is 2680 mm, the maximum subsidence speed is 187.4 mm/d, the maximum subsidence coefficient of single coal seam mining is 0.63, the maximum subsidence coefficient of oblique repeated mining is 0.84, the active period is about 55 d, and the period of subsidence is about 55 d. The amount accounts for 97% of the total subsidence, the maximum lagging distance of the down-town velocity is 74 m, and the maximum lagging angle of the sinking velocity is 67°. The above results verify that in the high-intensity mining of shallow coal seams, the surface subsidence is proportional to the geological mining factors when the ground subsidence is severe, the activity period is short, and the mining is repeated. The surface deformation of high-intensity mining in the valley terrain has the characteristics of fast speed, large collapse and heavy damage. loess gully area surface subsidence subsidence velocity movement and deformation law dynamic change Mining engineering. Metallurgy Lijia ZHANG verfasserin aut Zhenqi HU verfasserin aut Yaokun FU verfasserin aut In Meitan kexue jishu Editorial Department of Coal Science and Technology, 2022 51(2023), 4, Seite 157-165 (DE-627)588190470 (DE-600)2469839-8 02532336 nnns volume:51 year:2023 number:4 pages:157-165 https://doi.org/10.13199/j.cnki.cst.2021-0626 kostenfrei https://doaj.org/article/5c159426426d42828dcab005cfae5360 kostenfrei http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.2021-0626 kostenfrei https://doaj.org/toc/0253-2336 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_2055 AR 51 2023 4 157-165 |
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10.13199/j.cnki.cst.2021-0626 doi (DE-627)DOAJ100976697 (DE-599)DOAJ5c159426426d42828dcab005cfae5360 DE-627 ger DE-627 rakwb chi TN1-997 Guomou SHI verfasserin aut Research on surface movement and deformation characteristics of loess gully landform in Northern Shaanxi 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the Ningtiaota Mine has been systematically monitored for surface subsidence to analyze the high-intensity mining conditions Deformation characteristics of the ground surface subsidence, determine the maximum surface subsidence speed and the maximum subsidence speed lag angle, surface movement time and dynamic surface movement parameters. The results of the study show that the discontinuous deformation and destruction of the surface in high-strength coal mining in the collapsible loess layer in northern Shaanxi are severe, and the loess surface is easily affected by the combined effects of movement and deformation and topographic conditions, resulting in uneven settlement. Under high-strength mining conditions, the surface movement and deformation are severely developed , The maximum surface subsidence value is 5255 mm, the maximum horizontal movement value is 2680 mm, the maximum subsidence speed is 187.4 mm/d, the maximum subsidence coefficient of single coal seam mining is 0.63, the maximum subsidence coefficient of oblique repeated mining is 0.84, the active period is about 55 d, and the period of subsidence is about 55 d. The amount accounts for 97% of the total subsidence, the maximum lagging distance of the down-town velocity is 74 m, and the maximum lagging angle of the sinking velocity is 67°. The above results verify that in the high-intensity mining of shallow coal seams, the surface subsidence is proportional to the geological mining factors when the ground subsidence is severe, the activity period is short, and the mining is repeated. The surface deformation of high-intensity mining in the valley terrain has the characteristics of fast speed, large collapse and heavy damage. loess gully area surface subsidence subsidence velocity movement and deformation law dynamic change Mining engineering. Metallurgy Lijia ZHANG verfasserin aut Zhenqi HU verfasserin aut Yaokun FU verfasserin aut In Meitan kexue jishu Editorial Department of Coal Science and Technology, 2022 51(2023), 4, Seite 157-165 (DE-627)588190470 (DE-600)2469839-8 02532336 nnns volume:51 year:2023 number:4 pages:157-165 https://doi.org/10.13199/j.cnki.cst.2021-0626 kostenfrei https://doaj.org/article/5c159426426d42828dcab005cfae5360 kostenfrei http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.2021-0626 kostenfrei https://doaj.org/toc/0253-2336 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_2055 AR 51 2023 4 157-165 |
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10.13199/j.cnki.cst.2021-0626 doi (DE-627)DOAJ100976697 (DE-599)DOAJ5c159426426d42828dcab005cfae5360 DE-627 ger DE-627 rakwb chi TN1-997 Guomou SHI verfasserin aut Research on surface movement and deformation characteristics of loess gully landform in Northern Shaanxi 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the Ningtiaota Mine has been systematically monitored for surface subsidence to analyze the high-intensity mining conditions Deformation characteristics of the ground surface subsidence, determine the maximum surface subsidence speed and the maximum subsidence speed lag angle, surface movement time and dynamic surface movement parameters. The results of the study show that the discontinuous deformation and destruction of the surface in high-strength coal mining in the collapsible loess layer in northern Shaanxi are severe, and the loess surface is easily affected by the combined effects of movement and deformation and topographic conditions, resulting in uneven settlement. Under high-strength mining conditions, the surface movement and deformation are severely developed , The maximum surface subsidence value is 5255 mm, the maximum horizontal movement value is 2680 mm, the maximum subsidence speed is 187.4 mm/d, the maximum subsidence coefficient of single coal seam mining is 0.63, the maximum subsidence coefficient of oblique repeated mining is 0.84, the active period is about 55 d, and the period of subsidence is about 55 d. The amount accounts for 97% of the total subsidence, the maximum lagging distance of the down-town velocity is 74 m, and the maximum lagging angle of the sinking velocity is 67°. The above results verify that in the high-intensity mining of shallow coal seams, the surface subsidence is proportional to the geological mining factors when the ground subsidence is severe, the activity period is short, and the mining is repeated. The surface deformation of high-intensity mining in the valley terrain has the characteristics of fast speed, large collapse and heavy damage. loess gully area surface subsidence subsidence velocity movement and deformation law dynamic change Mining engineering. Metallurgy Lijia ZHANG verfasserin aut Zhenqi HU verfasserin aut Yaokun FU verfasserin aut In Meitan kexue jishu Editorial Department of Coal Science and Technology, 2022 51(2023), 4, Seite 157-165 (DE-627)588190470 (DE-600)2469839-8 02532336 nnns volume:51 year:2023 number:4 pages:157-165 https://doi.org/10.13199/j.cnki.cst.2021-0626 kostenfrei https://doaj.org/article/5c159426426d42828dcab005cfae5360 kostenfrei http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.2021-0626 kostenfrei https://doaj.org/toc/0253-2336 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_2055 AR 51 2023 4 157-165 |
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10.13199/j.cnki.cst.2021-0626 doi (DE-627)DOAJ100976697 (DE-599)DOAJ5c159426426d42828dcab005cfae5360 DE-627 ger DE-627 rakwb chi TN1-997 Guomou SHI verfasserin aut Research on surface movement and deformation characteristics of loess gully landform in Northern Shaanxi 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the Ningtiaota Mine has been systematically monitored for surface subsidence to analyze the high-intensity mining conditions Deformation characteristics of the ground surface subsidence, determine the maximum surface subsidence speed and the maximum subsidence speed lag angle, surface movement time and dynamic surface movement parameters. The results of the study show that the discontinuous deformation and destruction of the surface in high-strength coal mining in the collapsible loess layer in northern Shaanxi are severe, and the loess surface is easily affected by the combined effects of movement and deformation and topographic conditions, resulting in uneven settlement. Under high-strength mining conditions, the surface movement and deformation are severely developed , The maximum surface subsidence value is 5255 mm, the maximum horizontal movement value is 2680 mm, the maximum subsidence speed is 187.4 mm/d, the maximum subsidence coefficient of single coal seam mining is 0.63, the maximum subsidence coefficient of oblique repeated mining is 0.84, the active period is about 55 d, and the period of subsidence is about 55 d. The amount accounts for 97% of the total subsidence, the maximum lagging distance of the down-town velocity is 74 m, and the maximum lagging angle of the sinking velocity is 67°. The above results verify that in the high-intensity mining of shallow coal seams, the surface subsidence is proportional to the geological mining factors when the ground subsidence is severe, the activity period is short, and the mining is repeated. The surface deformation of high-intensity mining in the valley terrain has the characteristics of fast speed, large collapse and heavy damage. loess gully area surface subsidence subsidence velocity movement and deformation law dynamic change Mining engineering. Metallurgy Lijia ZHANG verfasserin aut Zhenqi HU verfasserin aut Yaokun FU verfasserin aut In Meitan kexue jishu Editorial Department of Coal Science and Technology, 2022 51(2023), 4, Seite 157-165 (DE-627)588190470 (DE-600)2469839-8 02532336 nnns volume:51 year:2023 number:4 pages:157-165 https://doi.org/10.13199/j.cnki.cst.2021-0626 kostenfrei https://doaj.org/article/5c159426426d42828dcab005cfae5360 kostenfrei http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.2021-0626 kostenfrei https://doaj.org/toc/0253-2336 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_2055 AR 51 2023 4 157-165 |
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10.13199/j.cnki.cst.2021-0626 doi (DE-627)DOAJ100976697 (DE-599)DOAJ5c159426426d42828dcab005cfae5360 DE-627 ger DE-627 rakwb chi TN1-997 Guomou SHI verfasserin aut Research on surface movement and deformation characteristics of loess gully landform in Northern Shaanxi 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the Ningtiaota Mine has been systematically monitored for surface subsidence to analyze the high-intensity mining conditions Deformation characteristics of the ground surface subsidence, determine the maximum surface subsidence speed and the maximum subsidence speed lag angle, surface movement time and dynamic surface movement parameters. The results of the study show that the discontinuous deformation and destruction of the surface in high-strength coal mining in the collapsible loess layer in northern Shaanxi are severe, and the loess surface is easily affected by the combined effects of movement and deformation and topographic conditions, resulting in uneven settlement. Under high-strength mining conditions, the surface movement and deformation are severely developed , The maximum surface subsidence value is 5255 mm, the maximum horizontal movement value is 2680 mm, the maximum subsidence speed is 187.4 mm/d, the maximum subsidence coefficient of single coal seam mining is 0.63, the maximum subsidence coefficient of oblique repeated mining is 0.84, the active period is about 55 d, and the period of subsidence is about 55 d. The amount accounts for 97% of the total subsidence, the maximum lagging distance of the down-town velocity is 74 m, and the maximum lagging angle of the sinking velocity is 67°. The above results verify that in the high-intensity mining of shallow coal seams, the surface subsidence is proportional to the geological mining factors when the ground subsidence is severe, the activity period is short, and the mining is repeated. The surface deformation of high-intensity mining in the valley terrain has the characteristics of fast speed, large collapse and heavy damage. loess gully area surface subsidence subsidence velocity movement and deformation law dynamic change Mining engineering. Metallurgy Lijia ZHANG verfasserin aut Zhenqi HU verfasserin aut Yaokun FU verfasserin aut In Meitan kexue jishu Editorial Department of Coal Science and Technology, 2022 51(2023), 4, Seite 157-165 (DE-627)588190470 (DE-600)2469839-8 02532336 nnns volume:51 year:2023 number:4 pages:157-165 https://doi.org/10.13199/j.cnki.cst.2021-0626 kostenfrei https://doaj.org/article/5c159426426d42828dcab005cfae5360 kostenfrei http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.2021-0626 kostenfrei https://doaj.org/toc/0253-2336 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_2055 AR 51 2023 4 157-165 |
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The results of the study show that the discontinuous deformation and destruction of the surface in high-strength coal mining in the collapsible loess layer in northern Shaanxi are severe, and the loess surface is easily affected by the combined effects of movement and deformation and topographic conditions, resulting in uneven settlement. Under high-strength mining conditions, the surface movement and deformation are severely developed , The maximum surface subsidence value is 5255 mm, the maximum horizontal movement value is 2680 mm, the maximum subsidence speed is 187.4 mm/d, the maximum subsidence coefficient of single coal seam mining is 0.63, the maximum subsidence coefficient of oblique repeated mining is 0.84, the active period is about 55 d, and the period of subsidence is about 55 d. The amount accounts for 97% of the total subsidence, the maximum lagging distance of the down-town velocity is 74 m, and the maximum lagging angle of the sinking velocity is 67°. The above results verify that in the high-intensity mining of shallow coal seams, the surface subsidence is proportional to the geological mining factors when the ground subsidence is severe, the activity period is short, and the mining is repeated. The surface deformation of high-intensity mining in the valley terrain has the characteristics of fast speed, large collapse and heavy damage.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">loess gully area</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">surface subsidence</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">subsidence velocity</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">movement and deformation law</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">dynamic change</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Mining engineering. 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Research on surface movement and deformation characteristics of loess gully landform in Northern Shaanxi |
| abstract |
In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the Ningtiaota Mine has been systematically monitored for surface subsidence to analyze the high-intensity mining conditions Deformation characteristics of the ground surface subsidence, determine the maximum surface subsidence speed and the maximum subsidence speed lag angle, surface movement time and dynamic surface movement parameters. The results of the study show that the discontinuous deformation and destruction of the surface in high-strength coal mining in the collapsible loess layer in northern Shaanxi are severe, and the loess surface is easily affected by the combined effects of movement and deformation and topographic conditions, resulting in uneven settlement. Under high-strength mining conditions, the surface movement and deformation are severely developed , The maximum surface subsidence value is 5255 mm, the maximum horizontal movement value is 2680 mm, the maximum subsidence speed is 187.4 mm/d, the maximum subsidence coefficient of single coal seam mining is 0.63, the maximum subsidence coefficient of oblique repeated mining is 0.84, the active period is about 55 d, and the period of subsidence is about 55 d. The amount accounts for 97% of the total subsidence, the maximum lagging distance of the down-town velocity is 74 m, and the maximum lagging angle of the sinking velocity is 67°. The above results verify that in the high-intensity mining of shallow coal seams, the surface subsidence is proportional to the geological mining factors when the ground subsidence is severe, the activity period is short, and the mining is repeated. The surface deformation of high-intensity mining in the valley terrain has the characteristics of fast speed, large collapse and heavy damage. |
| abstractGer |
In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the Ningtiaota Mine has been systematically monitored for surface subsidence to analyze the high-intensity mining conditions Deformation characteristics of the ground surface subsidence, determine the maximum surface subsidence speed and the maximum subsidence speed lag angle, surface movement time and dynamic surface movement parameters. The results of the study show that the discontinuous deformation and destruction of the surface in high-strength coal mining in the collapsible loess layer in northern Shaanxi are severe, and the loess surface is easily affected by the combined effects of movement and deformation and topographic conditions, resulting in uneven settlement. Under high-strength mining conditions, the surface movement and deformation are severely developed , The maximum surface subsidence value is 5255 mm, the maximum horizontal movement value is 2680 mm, the maximum subsidence speed is 187.4 mm/d, the maximum subsidence coefficient of single coal seam mining is 0.63, the maximum subsidence coefficient of oblique repeated mining is 0.84, the active period is about 55 d, and the period of subsidence is about 55 d. The amount accounts for 97% of the total subsidence, the maximum lagging distance of the down-town velocity is 74 m, and the maximum lagging angle of the sinking velocity is 67°. The above results verify that in the high-intensity mining of shallow coal seams, the surface subsidence is proportional to the geological mining factors when the ground subsidence is severe, the activity period is short, and the mining is repeated. The surface deformation of high-intensity mining in the valley terrain has the characteristics of fast speed, large collapse and heavy damage. |
| abstract_unstemmed |
In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the Ningtiaota Mine has been systematically monitored for surface subsidence to analyze the high-intensity mining conditions Deformation characteristics of the ground surface subsidence, determine the maximum surface subsidence speed and the maximum subsidence speed lag angle, surface movement time and dynamic surface movement parameters. The results of the study show that the discontinuous deformation and destruction of the surface in high-strength coal mining in the collapsible loess layer in northern Shaanxi are severe, and the loess surface is easily affected by the combined effects of movement and deformation and topographic conditions, resulting in uneven settlement. Under high-strength mining conditions, the surface movement and deformation are severely developed , The maximum surface subsidence value is 5255 mm, the maximum horizontal movement value is 2680 mm, the maximum subsidence speed is 187.4 mm/d, the maximum subsidence coefficient of single coal seam mining is 0.63, the maximum subsidence coefficient of oblique repeated mining is 0.84, the active period is about 55 d, and the period of subsidence is about 55 d. The amount accounts for 97% of the total subsidence, the maximum lagging distance of the down-town velocity is 74 m, and the maximum lagging angle of the sinking velocity is 67°. The above results verify that in the high-intensity mining of shallow coal seams, the surface subsidence is proportional to the geological mining factors when the ground subsidence is severe, the activity period is short, and the mining is repeated. The surface deformation of high-intensity mining in the valley terrain has the characteristics of fast speed, large collapse and heavy damage. |
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