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| 工业广场下采煤方法探讨 |
| On coal mining method under industry square |
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| DOI： |
| 中文关键词: 建筑物下:充填开采;保护煤柱;地表变形 |
| 英文关键词: under buildings; backfill mining; protective coal pillar; surface deformation |
| 基金项目:煤矿安全开采技术湖南省重点实验室开放基金资助项目(201003;200803);湖南省国土资源厅科技资助项目(201239) |
| 作者 | 单位 | | 唐海,邹复苏,黄靖龙 | 湖南科技大学 煤矿安全开采技术湖南省重点实验室,湖南 湘潭 411201
湖南科技大学 能源与安全工程学院,湖南 湘潭 411201 |
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| 中文摘要: |
| 为研究工业广场下压煤开采技术,以五亩冲煤矿“三下”开采为实例,结合现场实际情况,提出了3种开采方案,即重点保护建(构)筑物煤柱外开采方案(方案一);重点保护建(构)筑物留煤柱,其它建筑物控制变形等级采后维修方案(方案二);重点保护建(构)筑物留少量煤柱外充填开采方案(方案三).通过对跨落法、条带法、充填法等采煤法引起地表变形分析,预测了3种方案对地表变形和建筑物的影响,并从技术上和经济上比较了3种方案的优缺点,认为方案三对地表建筑物极轻微影响,回收煤炭资源多,经济效益好,适合工业广场下采煤. |
| 英文摘要: |
| In order to study the coal mining technology under industry square, this paper, based on the “Three Unders” mining in Wumuchong Coal Mine and combined with the actual on-site situation, proposes three different mining methods, i.e. mining method reaming coal pillars under important buildings (scheme 1), mining method reaming coal pillars under important buildings and controlling deformation level and repairing after mining under common buildings (scheme 2), and mining method reaming a little coal pillars under important buildings and backfill mining under common buildings (scheme 3). By analyzing the surface deformation caused by caving method, strips mining method and backfill mining, this paper predicts the surface deformation and the influence on buildings produced by three different mining schemes. After analyzing the above three schemes from the perspectives of technology and economy, this paper considers that scheme 3 has a very slight effect on surface buildings, recycles more coal resource and yields good economic benefits, which is applicable to coal mining under industry square. |
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