Engineering Practice of Inclined Longwall Roof Cutting and Pressure Relief Gob‐Retaining Roadway Technology in Feitian Coal Mine.
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| Title: | Engineering Practice of Inclined Longwall Roof Cutting and Pressure Relief Gob‐Retaining Roadway Technology in Feitian Coal Mine. |
|---|---|
| Authors: | Xu, Xianbi1 (AUTHOR), Ma, Zhenqian2 (AUTHOR) zqma@gzu.edu.cn, Huang, Jun1 (AUTHOR), Zhu, Yuankun2 (AUTHOR) |
| Source: | Energy Science & Engineering. Nov2025, Vol. 13 Issue 11, p5660-5671. 12p. |
| Subject Terms: | *Coal mining, *Longwall mining, *Mining engineering, *Pressure control, *Excavation (Civil engineering), *Mines & mineral resources |
| Abstract: | To address the issues of tight mining‐excavation scheduling and challenging gas management in coal mines, this study proposes a technical scheme for inclined longwall roof cutting and pressure relief pillarless mining. By implementing key technologies, including directional cumulative blasting for roof cutting, advanced cable bolt support, and dynamic gob‐retaining sealing, the 210701 transport roadway in Feitian Coal Mine successfully achieved 950 m of gob‐side retained roadway, with an average width of 4.2 m and height of 2.4 m. Results indicate that this technology reduces roadway excavation by 950 m, accelerates working face formation by 4 months, saves 6.65 million yuan in costs, recovers an additional 15,000 tons of coal resources, and establishes optimal conditions for gas control. The findings offer both a theoretical foundation and engineering guidance for pillarless mining under analogous geological conditions. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| FullText | Links: – Type: pdflink Text: Availability: 1 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 189231492 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Engineering Practice of Inclined Longwall Roof Cutting and Pressure Relief Gob‐Retaining Roadway Technology in Feitian Coal Mine. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Xu%2C+Xianbi%22">Xu, Xianbi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ma%2C+Zhenqian%22">Ma, Zhenqian</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> zqma@gzu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Huang%2C+Jun%22">Huang, Jun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhu%2C+Yuankun%22">Zhu, Yuankun</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energy+Science+%26+Engineering%22">Energy Science & Engineering</searchLink>. Nov2025, Vol. 13 Issue 11, p5660-5671. 12p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Coal+mining%22">Coal mining</searchLink><br />*<searchLink fieldCode="DE" term="%22Longwall+mining%22">Longwall mining</searchLink><br />*<searchLink fieldCode="DE" term="%22Mining+engineering%22">Mining engineering</searchLink><br />*<searchLink fieldCode="DE" term="%22Pressure+control%22">Pressure control</searchLink><br />*<searchLink fieldCode="DE" term="%22Excavation+%28Civil+engineering%29%22">Excavation (Civil engineering)</searchLink><br />*<searchLink fieldCode="DE" term="%22Mines+%26+mineral+resources%22">Mines & mineral resources</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: To address the issues of tight mining‐excavation scheduling and challenging gas management in coal mines, this study proposes a technical scheme for inclined longwall roof cutting and pressure relief pillarless mining. By implementing key technologies, including directional cumulative blasting for roof cutting, advanced cable bolt support, and dynamic gob‐retaining sealing, the 210701 transport roadway in Feitian Coal Mine successfully achieved 950 m of gob‐side retained roadway, with an average width of 4.2 m and height of 2.4 m. Results indicate that this technology reduces roadway excavation by 950 m, accelerates working face formation by 4 months, saves 6.65 million yuan in costs, recovers an additional 15,000 tons of coal resources, and establishes optimal conditions for gas control. The findings offer both a theoretical foundation and engineering guidance for pillarless mining under analogous geological conditions. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=189231492 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/ese3.70274 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 5660 Subjects: – SubjectFull: Coal mining Type: general – SubjectFull: Longwall mining Type: general – SubjectFull: Mining engineering Type: general – SubjectFull: Pressure control Type: general – SubjectFull: Excavation (Civil engineering) Type: general – SubjectFull: Mines & mineral resources Type: general Titles: – TitleFull: Engineering Practice of Inclined Longwall Roof Cutting and Pressure Relief Gob‐Retaining Roadway Technology in Feitian Coal Mine. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Xu, Xianbi – PersonEntity: Name: NameFull: Ma, Zhenqian – PersonEntity: Name: NameFull: Huang, Jun – PersonEntity: Name: NameFull: Zhu, Yuankun IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 20500505 Numbering: – Type: volume Value: 13 – Type: issue Value: 11 Titles: – TitleFull: Energy Science & Engineering Type: main |
| ResultId | 1 |
