巷旁充填体可缩性对沿空留巷顶板运动的适应性分析 |
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引用本文: | 苏清政 郝海金. 巷旁充填体可缩性对沿空留巷顶板运动的适应性分析[J]. 焦作工学院学报, 2002, 21(5): 321-323 |
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作者姓名: | 苏清政 郝海金 |
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作者单位: | 晋城煤业集团公司,中国矿业大学北京校区 山西晋城 480006,北京100083 |
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摘 要: | 分析了沿空留巷巷道顶板岩层运动的过程及岩块之间的几何关系 ,得到了高水速凝充填体所需变形量的计算模型 .理论及现场实测结果都表明 ,目前所用高水速凝材料的可缩性不能很好地适应巷道顶板运动特性 ,必须加以改进
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关 键 词: | 沿空留巷 高水速凝材料充填体 可缩性 |
Research on adaptability of deformation characteristics of roof and packing compressibility |
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Abstract: | The motion process and the relationship between blocks of roof rocks are analyzed.The mathematics model of rational compressed?volume?of?the?packing is established.Theoretical research and in?situ observation shows the contractibility of the packing doesn′t suitable for the deformation characteristics of roof rocks.The compressibility of the packing of high?water solidifying material must improve. |
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Keywords: | gob side entry retaining packing of high water solidifying material contractibility |
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