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复合煤层露天矿软岩边坡稳定控制开采方法 ——以白音华一号露天煤矿为例.

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Title: 复合煤层露天矿软岩边坡稳定控制开采方法 ——以白音华一号露天煤矿为例.
Alternate Title: Stability control mining method of soft rock slope in composite coal seam open-pit mine: a case study of Baiyinhua No.1 open-pit coal mine.
Authors: 郭伟强1,2 guoweiqiang@Intu.edu.cn, 张辉1 977014822@qq.com, 佟宏哥1, 涂俊雄3, 刘光伟1, 祝会忠2, 梁祖超1, 袁杰1, 白羽4, 于明宇4, 罗浩4
Source: Coal Science & Technology (0253-2336). May2026, Vol. 54 Issue 5, p281-297. 17p.
Subject Terms: *Slope stability, *Mining methodology, *Strip mining, *Waste minimization
Abstract (English): Rational slope stability-controlled mining method can effectively ensure the safety and stability of open-pit mine slopes, facilitate seamless production capacity transition, and enhance the economic benefits of mining areas. The Baiyinhua No. 1 open-pit coal mine is a typical soft rock open-pit mine with developed weak interlayers, featuring four main minable coal seams. Affected by the deformation zone in the northeastern slope of the mining area, 53 million tons of resources were encumbered, making the originally designed vertical mining plan difficult to implement and severely impacting the mine’s economic efficiency. Simultaneously, influenced by the advanced internal dumping of the Baiyinhua No. 2 open-pit coal mine and the northern external waste dump, safety hazards existed in the eastern and northeastern slopes of the mining area. To reduce resource waste and ensure the safe, economical, and efficient operation of the Baiyinhua No. 1 open-pit coal mine, a slope stability-controlled mining method termed "layered backfilling with intensified internal dumping" was proposed. The study adopted a change in the mining procedure, switching the coal working line to a transverse mining method to mining the deformation zone. Part of the deep coal seam was reserved as a supporting and retaining coal pillar. This enabled advanced internal dumping to backfill and stabilize the eastern and northeastern soft rock slopes. A mathematical model for optimizing the coal pillar was established. The calculated geometric parameters of the reserved pillar are: an upper southern edge length of 250 m, an upper western edge length of 1000 m, an included angle of 120°, a lower southern edge length of 120 m, a lower western edge length of 1200 m, an average height of 150 m, resulting in a total encumbered coal volume of 13.7 million tons. This approach effectively recovered 39.3 million tons of resources previously encumbered in the northeastern deformation zone. These achievements provided substantial technical support for the safe production of the Baiyinhua No. 1 open-pit coal mine and offered valuable experience for slope stability-controlled mining in open-pit mines with composite coal seams and soft rock conditions. [ABSTRACT FROM AUTHOR]
Abstract (Chinese): 合理的边坡稳定控制开采方法能有效保证露天矿边坡安全稳定, 实现产能顺利接续, 提高矿 区经济效益。白音华一号露天煤矿属典型弱层发育的软岩露天煤矿, 主要可采煤层 4 层, 受采场东 北帮变形区影响, 压覆采场资源 5300 万 t, 原设计纵采方案难以执行, 严重影响矿山经济效益; 同 时, 受白音华二号露天煤矿超前內排和北外排土场影响, 采场东帮和东北帮边坡存在安全隐患。为 降低资源浪费, 确保白音华一号露天煤矿生产安全、经济高效地运行, 提出了"分层压帮、强化内排" 的边坡稳定控制开采方案, 研究通过改变开采程序的方式, 将采煤工作线更改为横采的开采方式对 变形区进行回采, 留设部分深部煤层作为支挡煤柱, 实现超前内排压覆东帮和东北帮, 保障了采场 东帮和东北帮软岩边坡安全稳定; 建立了支挡煤柱优化数学模型, 计算出留设煤柱几何形态为: 上 部南侧边缘长度为 250m, 西侧边缘长度为 1000m, 夹角为 120°, 下部南侧边缘长度为 120 m, 西 侧边缘长度为 1200m, 煤柱的平均高度为 150m, 总压覆煤量 1370 万 t。有效回收了采场东北帮变 形区压覆资源量 3930 万 t。成果为白音华一号露天煤矿安全生产提供了充分的技术支持, 并为复合 煤层露天矿软岩边坡控制开采提供了相关经验。 [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: 复合煤层露天矿软岩边坡稳定控制开采方法 ——以白音华一号露天煤矿为例.
– Name: TitleAlt
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  Data: Stability control mining method of soft rock slope in composite coal seam open-pit mine: a case study of Baiyinhua No.1 open-pit coal mine.
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  Data: <searchLink fieldCode="AR" term="%22郭伟强%22">郭伟强</searchLink><relatesTo>1,2</relatesTo><i> guoweiqiang@Intu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22张辉%22">张辉</searchLink><relatesTo>1</relatesTo><i> 977014822@qq.com</i><br /><searchLink fieldCode="AR" term="%22佟宏哥%22">佟宏哥</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22涂俊雄%22">涂俊雄</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22刘光伟%22">刘光伟</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22祝会忠%22">祝会忠</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22梁祖超%22">梁祖超</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22袁杰%22">袁杰</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22白羽%22">白羽</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22于明宇%22">于明宇</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22罗浩%22">罗浩</searchLink><relatesTo>4</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Coal+Science+%26+Technology+%280253-2336%29%22">Coal Science & Technology (0253-2336)</searchLink>. May2026, Vol. 54 Issue 5, p281-297. 17p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Slope+stability%22">Slope stability</searchLink><br />*<searchLink fieldCode="DE" term="%22Mining+methodology%22">Mining methodology</searchLink><br />*<searchLink fieldCode="DE" term="%22Strip+mining%22">Strip mining</searchLink><br />*<searchLink fieldCode="DE" term="%22Waste+minimization%22">Waste minimization</searchLink>
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: Rational slope stability-controlled mining method can effectively ensure the safety and stability of open-pit mine slopes, facilitate seamless production capacity transition, and enhance the economic benefits of mining areas. The Baiyinhua No. 1 open-pit coal mine is a typical soft rock open-pit mine with developed weak interlayers, featuring four main minable coal seams. Affected by the deformation zone in the northeastern slope of the mining area, 53 million tons of resources were encumbered, making the originally designed vertical mining plan difficult to implement and severely impacting the mine’s economic efficiency. Simultaneously, influenced by the advanced internal dumping of the Baiyinhua No. 2 open-pit coal mine and the northern external waste dump, safety hazards existed in the eastern and northeastern slopes of the mining area. To reduce resource waste and ensure the safe, economical, and efficient operation of the Baiyinhua No. 1 open-pit coal mine, a slope stability-controlled mining method termed "layered backfilling with intensified internal dumping" was proposed. The study adopted a change in the mining procedure, switching the coal working line to a transverse mining method to mining the deformation zone. Part of the deep coal seam was reserved as a supporting and retaining coal pillar. This enabled advanced internal dumping to backfill and stabilize the eastern and northeastern soft rock slopes. A mathematical model for optimizing the coal pillar was established. The calculated geometric parameters of the reserved pillar are: an upper southern edge length of 250 m, an upper western edge length of 1000 m, an included angle of 120°, a lower southern edge length of 120 m, a lower western edge length of 1200 m, an average height of 150 m, resulting in a total encumbered coal volume of 13.7 million tons. This approach effectively recovered 39.3 million tons of resources previously encumbered in the northeastern deformation zone. These achievements provided substantial technical support for the safe production of the Baiyinhua No. 1 open-pit coal mine and offered valuable experience for slope stability-controlled mining in open-pit mines with composite coal seams and soft rock conditions. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Chinese)
  Group: Ab
  Data: 合理的边坡稳定控制开采方法能有效保证露天矿边坡安全稳定, 实现产能顺利接续, 提高矿 区经济效益。白音华一号露天煤矿属典型弱层发育的软岩露天煤矿, 主要可采煤层 4 层, 受采场东 北帮变形区影响, 压覆采场资源 5300 万 t, 原设计纵采方案难以执行, 严重影响矿山经济效益; 同 时, 受白音华二号露天煤矿超前內排和北外排土场影响, 采场东帮和东北帮边坡存在安全隐患。为 降低资源浪费, 确保白音华一号露天煤矿生产安全、经济高效地运行, 提出了"分层压帮、强化内排" 的边坡稳定控制开采方案, 研究通过改变开采程序的方式, 将采煤工作线更改为横采的开采方式对 变形区进行回采, 留设部分深部煤层作为支挡煤柱, 实现超前内排压覆东帮和东北帮, 保障了采场 东帮和东北帮软岩边坡安全稳定; 建立了支挡煤柱优化数学模型, 计算出留设煤柱几何形态为: 上 部南侧边缘长度为 250m, 西侧边缘长度为 1000m, 夹角为 120°, 下部南侧边缘长度为 120 m, 西 侧边缘长度为 1200m, 煤柱的平均高度为 150m, 总压覆煤量 1370 万 t。有效回收了采场东北帮变 形区压覆资源量 3930 万 t。成果为白音华一号露天煤矿安全生产提供了充分的技术支持, 并为复合 煤层露天矿软岩边坡控制开采提供了相关经验。 [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=194562337
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        Value: 10.12438/cst.2025-1179
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      – Code: chi
        Text: Chinese
    PhysicalDescription:
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        PageCount: 17
        StartPage: 281
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      – SubjectFull: Slope stability
        Type: general
      – SubjectFull: Mining methodology
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      – SubjectFull: Strip mining
        Type: general
      – SubjectFull: Waste minimization
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      – TitleFull: 复合煤层露天矿软岩边坡稳定控制开采方法 ——以白音华一号露天煤矿为例.
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              M: 05
              Text: May2026
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              Y: 2026
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