Theory and Application of Gob-Side Entry Retaining in Thick Three-Soft Coal Seam
With the characteristic of less roadway excavation and high resource recovery, gob-side entry retaining (GER) technology is a safe and efficient green mining technology. Many experts and scholars have done extensive research on its principle and application. However, GERs are rarely used in thick so...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/6157174 |
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| author | Junchao Shen Ying Zhang |
| author_facet | Junchao Shen Ying Zhang |
| author_sort | Junchao Shen |
| collection | DOAJ |
| description | With the characteristic of less roadway excavation and high resource recovery, gob-side entry retaining (GER) technology is a safe and efficient green mining technology. Many experts and scholars have done extensive research on its principle and application. However, GERs are rarely used in thick soft coal seams. In this paper, based on the geological conditions of a coal mine in China, we propose a novelty approach of GER in thick three-soft coal seam (it means a single seam with a soft roof and a soft floor). The engineering scheme includes roadway expansion, large section roadway support, cutting roof to relieve pressure, and road-inside backfill body construction. The established mechanical and numerical calculation models effectively guide the engineering practice. Field observations showed that all the processes met the requirements of field production. The research results could provide theoretical guidance for the application of GER under similar geological conditions. |
| format | Article |
| id | doaj-art-4f8fad60a7cc456c87a4b8887baa1706 |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-4f8fad60a7cc456c87a4b8887baa17062025-02-03T01:27:07ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/61571746157174Theory and Application of Gob-Side Entry Retaining in Thick Three-Soft Coal SeamJunchao Shen0Ying Zhang1School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, ChinaZhongYun International Engineering Co., Ltd., Zhengzhou, Henan 450007, ChinaWith the characteristic of less roadway excavation and high resource recovery, gob-side entry retaining (GER) technology is a safe and efficient green mining technology. Many experts and scholars have done extensive research on its principle and application. However, GERs are rarely used in thick soft coal seams. In this paper, based on the geological conditions of a coal mine in China, we propose a novelty approach of GER in thick three-soft coal seam (it means a single seam with a soft roof and a soft floor). The engineering scheme includes roadway expansion, large section roadway support, cutting roof to relieve pressure, and road-inside backfill body construction. The established mechanical and numerical calculation models effectively guide the engineering practice. Field observations showed that all the processes met the requirements of field production. The research results could provide theoretical guidance for the application of GER under similar geological conditions.http://dx.doi.org/10.1155/2021/6157174 |
| spellingShingle | Junchao Shen Ying Zhang Theory and Application of Gob-Side Entry Retaining in Thick Three-Soft Coal Seam Geofluids |
| title | Theory and Application of Gob-Side Entry Retaining in Thick Three-Soft Coal Seam |
| title_full | Theory and Application of Gob-Side Entry Retaining in Thick Three-Soft Coal Seam |
| title_fullStr | Theory and Application of Gob-Side Entry Retaining in Thick Three-Soft Coal Seam |
| title_full_unstemmed | Theory and Application of Gob-Side Entry Retaining in Thick Three-Soft Coal Seam |
| title_short | Theory and Application of Gob-Side Entry Retaining in Thick Three-Soft Coal Seam |
| title_sort | theory and application of gob side entry retaining in thick three soft coal seam |
| url | http://dx.doi.org/10.1155/2021/6157174 |
| work_keys_str_mv | AT junchaoshen theoryandapplicationofgobsideentryretaininginthickthreesoftcoalseam AT yingzhang theoryandapplicationofgobsideentryretaininginthickthreesoftcoalseam |