| KDB3000-10A型底板比压仪的研制及使用 |
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| 引用本文： | 刘延峰.KDB3000-10A型底板比压仪的研制及使用[J].煤矿机械,2012,33(4):155-156. |
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| 作者姓名： | 刘延峰 |
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| 作者单位： | 尤洛卡矿业安全工程股份有限公司,山东泰安,271000 |
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| 摘 要： | 单体液压支柱通过柱头承受顶板载荷,同时通过底座将载荷传送到工作面底板。底座对底板的接触正压力简称为接触比压,如果接触比压大于底板的抗压强度(即底板比压),就会造成单体支柱钻底让底,导致顶板维护不良,直接顶发生离层,容易造成冒顶事故。因此,加强对底板比压的测试工作以确定合理的支护密度,研制和使用底板比压仪显得尤其重要。
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| 关 键 词： | KDB3000-10A型 底板 比压仪 研制 使用 |
KDB3000-10A Type Floor Specific Pressure Gauge Developed and Used |
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| LIU Yan-feng.KDB3000-10A Type Floor Specific Pressure Gauge Developed and Used[J].Coal Mine Machinery,2012,33(4):155-156. |
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| Authors: | LIU Yan-feng |
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| Affiliation: | LIU Yan-feng(Uroica Mining Safety Engineering Co.,Ltd.,Tai’an 271000,China) |
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| Abstract: | Individual hydraulic support through coal roof load,and at same time through under base load transfer to face floor.Base on floor is referred to as contact pressure for specific pressure,if specific pressure gets bottom than compressive strength(that is,bottom specific pressure),it will cause individual hydraulic support drill bottom,leading to maintain direct roof,roof bad happened,it is apt to cause overburden bed separation grouting roof caving accidents.Therefore,strengthens to bottom of pressure test work than to determine reasonable supporting density,developing and using bottom than instrument are especially important. |
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| Keywords: | KDB3000-10A type floor specific pressure gauge developed use |
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