| 超长工作面顺槽保护煤柱合理尺寸的确定 |
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| 引用本文： | 张飞,范文胜,孙建岭,兰毅,田武强.超长工作面顺槽保护煤柱合理尺寸的确定[J].工矿自动化,2010,36(4). |
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| 作者姓名： | 张飞 范文胜 孙建岭 兰毅 田武强 |
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| 作者单位： | 1. 内蒙古科技大学资源与安全工程学院,内蒙古,包头,014010
2. 神华乌海能源有限责任公司,内蒙古,乌海,016000 |
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| 摘 要： | 针对神华集团海渤湾矿业有限责任公司路天矿300 m综采放顶煤工作面的生产试验,应用FLAC3D来确定顺槽煤柱在受到采动影响时的合理尺寸,通过建立模型模拟计算得出结论:随着工作面的加长,周期来压缓和,在一定程度上减小了对顺槽煤柱的影响;距工作面后方100~110 m处对煤柱的影响范围最大,侧向明显影响范围可达10 m左右,塑性破坏深度为7 m;由于保护煤柱还要受下一工作面回采时的影响,在相同地质条件下浅埋深超长工作面的保护煤柱确定为15 m。
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| 关 键 词： | 综采放顶煤 超长工作面 顺槽 保护煤柱 合理尺寸 FLAC3D |
Determination of Reasonable Size of Protection Pillars for Crossheading on Super Long Working Face |
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| ZHANG Fei,FAN Wen-sheng,SUN Jian-ling,LAN Yi,TIAN Wu-qiang.Determination of Reasonable Size of Protection Pillars for Crossheading on Super Long Working Face[J].Industry and Automation,2010,36(4). |
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| Authors: | ZHANG Fei FAN Wen-sheng SUN Jian-ling LAN Yi TIAN Wu-qiang |
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| Affiliation: | 1.School of Resources and Safety Engineering of Inner Mongolia University of Science and Technology/a>;Baotou 014010/a>;China.2.Wuhai Energy Co./a>;Ltd.of Shenhua/a>;Wuhai 016000/a>;China |
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| Abstract: | For production test of 300 m fully mechanized working face of caving coal in Lutian coal mine of Haibowan mining Co.,Ltd.of Shenhua group,FLAC3D was used to determinate reasonable size of crossheading pillars affected by mining.Through establishing model and simulation,conclusions are as following: along with lengthening of working face,periodic weighting eases,so as to reduce impact to crossheading pillars to some extent;coal pillars which are influenced with the maximum range are 100~110 m away from the r... |
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| Keywords: | fully mechanized caving coal super long working face crossheading protection pillar reasonable size FLAC3D |
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