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深部下分层膏体充填工作面支架阻力分布与 支架−围岩关系.

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Title: 深部下分层膏体充填工作面支架阻力分布与 支架−围岩关系.
Alternate Title: Distribution of hydraulic support load and support surrounding rock relationship in deep lower slice paste backfilling longwall panel.
Authors: 李增强1 284072842@qq.com, 郑晓晨1, 周均忠1, 高维强2, 刘文东1, 李 强2, 张鹏飞2, 王兆会3 zhwang1024@163.com, 吴传平3
Source: Coal Science & Technology (0253-2336). Aug2025, Vol. 53 Issue 8, p202-214. 13p.
Subject Terms: *Mine roof control, *Longwall mining, *Structural optimization, *Hydraulic structures, *Stress concentration, *Mines & mineral resources, *Filler materials, *Geology
Abstract (English): Backfill mining serves as an effective method of load reduction and impact reduction in impact pressure mines, but the supportsurrounding rock relationship of the fill face is significantly different from that of the conventional face. In order to optimize the support selection for the filling face, improve the effect of surrounding rock control and reduce the cost of equipment, the 1123 working face of GuCheng coal mine was used as the engineering background to study the characteristics of roof load distribution and analyze the relationship of support- surrounding rock coupling under the condition of filling mining in impact pressure mines. The results show that: there are obvious differences in the shape of the time sequence curve of the support load between the filling stage and the mining stage, the former curve is smooth and has a small slope, while the latter has frequent transient phenomena and a large slope; there is no obvious periodic change in the support load under the support of the filling body, which indicates that the movement mode of the hard top plate changes from the periodic rupture type to the continuous subsidence type; there is an increasement in the support load time-sequence curve under the influence of the mining effect, the thick top coal, the distance from the front end of the top beam to the coal wall, the filling rate and other factors, and there is an increasement in the support load time-sequence curve. Under the influence of mining dynamic effect, thick top coal, the distance from the front end of the top beam to the coal wall, filling rate and other factors, the time sequence curve of support load exists increasing resistance type, constant resistance type and decreasing resistance type, but the rapid decreasing resistance type is dominant, which indicates that the initial supporting force of bracing in the 1123 working face is too large as 24 MPa, resulting in the second breakage of the thick top coal; the gob is divided into non-sufficiently compaction area and sufficiently compacted area, and the model of the continuous subsidence of the hard top plate under the effect of the support of the filling body is constructed, and the influence of the filling rate on the shape of the subsidence curve is obtained. Considering the damage of thick top coal, the method of determining the resistance of the supports in the filling face is proposed, the reason for the occurrence of rapid reduce resistance in the support load curve is explained and the optimization principle of the support stiffness and the initial support force is given, which improves the support-surrounding rock coupling relationship and enhances the effect of thick top coal and hard roof control. [ABSTRACT FROM AUTHOR]
Abstract (Chinese): 充填开采是冲击地压矿井实现降载减冲的有效手段, 充填工作面支架−围岩关系同常规工作 面存在明显差异, 导致支护参数选择缺少理论指导。为优化充填工作面支架选型, 提高围岩控制效 果, 降低装备配置成本, 以古城煤矿 1123 工作面为工程背景, 研究冲击地压矿井充填开采条件下顶 板载荷分布特征, 分析支架−围岩耦合作用关系。结果表明：充填阶段和采动阶段的支架载荷时序曲 线形态存在明显区别, 前者曲线平滑且斜率小, 后者瞬变现象频发且斜率大; 充填体支撑作用下支 架载荷不存在明显的周期变化现象, 表明坚硬顶板运动模式由周期断裂型转变为连续沉降型; 采动 效应、厚顶煤、悬顶距、充实率等因素影响下, 支架载荷时序曲线存在增阻型、恒阻型和降阻型, 但以快速降阻型为主, 表明 1123 工作面支架初撑力 24 MPa 偏大, 导致厚顶煤二次破碎和支架立柱 卸压现象; 将采空区划分为非充分压实区和充分压实区, 构建了充填体支撑作用下坚硬顶板连续沉 降模型, 得到了充实率对沉降曲线形态的影响; 考虑厚顶煤破坏损伤程度, 提出了充填工作面支架 阻力确定方法, 解释了支架载荷时序曲线中的快速降阻现象发生的原因, 给出了支架刚度和初撑力 优化原则, 改善了支架−围岩耦合关系, 提升了厚顶煤和坚硬顶板控制效果。 [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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DbLabel: Energy & Power Source
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PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: 深部下分层膏体充填工作面支架阻力分布与 支架−围岩关系.
– Name: TitleAlt
  Label: Alternate Title
  Group: TiAlt
  Data: Distribution of hydraulic support load and support surrounding rock relationship in deep lower slice paste backfilling longwall panel.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22李增强%22">李增强</searchLink><relatesTo>1</relatesTo><i> 284072842@qq.com</i><br /><searchLink fieldCode="AR" term="%22郑晓晨%22">郑晓晨</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22周均忠%22">周均忠</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22高维强%22">高维强</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22刘文东%22">刘文东</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22李+强%22">李 强</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22张鹏飞%22">张鹏飞</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22王兆会%22">王兆会</searchLink><relatesTo>3</relatesTo><i> zhwang1024@163.com</i><br /><searchLink fieldCode="AR" term="%22吴传平%22">吴传平</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Coal+Science+%26+Technology+%280253-2336%29%22">Coal Science & Technology (0253-2336)</searchLink>. Aug2025, Vol. 53 Issue 8, p202-214. 13p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Mine+roof+control%22">Mine roof control</searchLink><br />*<searchLink fieldCode="DE" term="%22Longwall+mining%22">Longwall mining</searchLink><br />*<searchLink fieldCode="DE" term="%22Structural+optimization%22">Structural optimization</searchLink><br />*<searchLink fieldCode="DE" term="%22Hydraulic+structures%22">Hydraulic structures</searchLink><br />*<searchLink fieldCode="DE" term="%22Stress+concentration%22">Stress concentration</searchLink><br />*<searchLink fieldCode="DE" term="%22Mines+%26+mineral+resources%22">Mines & mineral resources</searchLink><br />*<searchLink fieldCode="DE" term="%22Filler+materials%22">Filler materials</searchLink><br />*<searchLink fieldCode="DE" term="%22Geology%22">Geology</searchLink>
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: Backfill mining serves as an effective method of load reduction and impact reduction in impact pressure mines, but the supportsurrounding rock relationship of the fill face is significantly different from that of the conventional face. In order to optimize the support selection for the filling face, improve the effect of surrounding rock control and reduce the cost of equipment, the 1123 working face of GuCheng coal mine was used as the engineering background to study the characteristics of roof load distribution and analyze the relationship of support- surrounding rock coupling under the condition of filling mining in impact pressure mines. The results show that: there are obvious differences in the shape of the time sequence curve of the support load between the filling stage and the mining stage, the former curve is smooth and has a small slope, while the latter has frequent transient phenomena and a large slope; there is no obvious periodic change in the support load under the support of the filling body, which indicates that the movement mode of the hard top plate changes from the periodic rupture type to the continuous subsidence type; there is an increasement in the support load time-sequence curve under the influence of the mining effect, the thick top coal, the distance from the front end of the top beam to the coal wall, the filling rate and other factors, and there is an increasement in the support load time-sequence curve. Under the influence of mining dynamic effect, thick top coal, the distance from the front end of the top beam to the coal wall, filling rate and other factors, the time sequence curve of support load exists increasing resistance type, constant resistance type and decreasing resistance type, but the rapid decreasing resistance type is dominant, which indicates that the initial supporting force of bracing in the 1123 working face is too large as 24 MPa, resulting in the second breakage of the thick top coal; the gob is divided into non-sufficiently compaction area and sufficiently compacted area, and the model of the continuous subsidence of the hard top plate under the effect of the support of the filling body is constructed, and the influence of the filling rate on the shape of the subsidence curve is obtained. Considering the damage of thick top coal, the method of determining the resistance of the supports in the filling face is proposed, the reason for the occurrence of rapid reduce resistance in the support load curve is explained and the optimization principle of the support stiffness and the initial support force is given, which improves the support-surrounding rock coupling relationship and enhances the effect of thick top coal and hard roof control. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Chinese)
  Group: Ab
  Data: 充填开采是冲击地压矿井实现降载减冲的有效手段, 充填工作面支架−围岩关系同常规工作 面存在明显差异, 导致支护参数选择缺少理论指导。为优化充填工作面支架选型, 提高围岩控制效 果, 降低装备配置成本, 以古城煤矿 1123 工作面为工程背景, 研究冲击地压矿井充填开采条件下顶 板载荷分布特征, 分析支架−围岩耦合作用关系。结果表明：充填阶段和采动阶段的支架载荷时序曲 线形态存在明显区别, 前者曲线平滑且斜率小, 后者瞬变现象频发且斜率大; 充填体支撑作用下支 架载荷不存在明显的周期变化现象, 表明坚硬顶板运动模式由周期断裂型转变为连续沉降型; 采动 效应、厚顶煤、悬顶距、充实率等因素影响下, 支架载荷时序曲线存在增阻型、恒阻型和降阻型, 但以快速降阻型为主, 表明 1123 工作面支架初撑力 24 MPa 偏大, 导致厚顶煤二次破碎和支架立柱 卸压现象; 将采空区划分为非充分压实区和充分压实区, 构建了充填体支撑作用下坚硬顶板连续沉 降模型, 得到了充实率对沉降曲线形态的影响; 考虑厚顶煤破坏损伤程度, 提出了充填工作面支架 阻力确定方法, 解释了支架载荷时序曲线中的快速降阻现象发生的原因, 给出了支架刚度和初撑力 优化原则, 改善了支架−围岩耦合关系, 提升了厚顶煤和坚硬顶板控制效果。 [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.12438/cst.2024-0654
    Languages:
      – Code: chi
        Text: Chinese
    PhysicalDescription:
      Pagination:
        PageCount: 13
        StartPage: 202
    Subjects:
      – SubjectFull: Mine roof control
        Type: general
      – SubjectFull: Longwall mining
        Type: general
      – SubjectFull: Structural optimization
        Type: general
      – SubjectFull: Hydraulic structures
        Type: general
      – SubjectFull: Stress concentration
        Type: general
      – SubjectFull: Mines & mineral resources
        Type: general
      – SubjectFull: Filler materials
        Type: general
      – SubjectFull: Geology
        Type: general
    Titles:
      – TitleFull: 深部下分层膏体充填工作面支架阻力分布与 支架−围岩关系.
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            – D: 01
              M: 08
              Text: Aug2025
              Type: published
              Y: 2025
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