| 沿空留巷合理切顶卸压参数研究 |
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| 作者姓名： | 樊刚 席小平 乔懿麟 边海清 |
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| 作者单位： | 陕西澄城董东煤业有限责任公司;陕西煤业化工技术研究院有限责任公司 |
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| 摘 要： | 针对沿空留巷巷道围岩受力变形大的问题,对沿空留巷顶板进行切顶卸压,对比分析卸压前后沿空留巷围岩的受力变形,明确切顶卸压对沿空留巷围岩的控制作用。以董东煤矿为例,建立数值模型并进行数值模拟计算,总结沿空留巷切顶卸压作用,并确定合理的切顶参数。
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| 关 键 词： | 沿空留巷 切顶卸压 卸压参数 |
Research on Reasonable Roof Cutting and Pressure Relief Parameters of Gob-side Entry Retaining |
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| Authors: | FAN Gang XI Xiaoping QIAO Yilin BIAN Haiqing |
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| Affiliation: | (Chengcheng Dongdong Coal Industry Co.,Ltd.of Shaanxi,Chengcheng 715200,Shaanxi,China;Shaanxi Coal and Chemical Technology Institute Co.,Ltd.,Xi'an 710065,Shaanxi,China) |
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| Abstract: | Aiming at the problem of large deformation of surrounding rock in gob-side entry retaining,the roof cutting and pre-ssure relief were carried out,and the stress and deformation of surrounding rock before and after relieving pressure were compared and analyzed,so as to clarify the control effect of roof cutting and relieving pressure on surrounding rock of gob-side entry retaining.Taking Dongdong Coal Mine as an example,this paper established the numerical model and carried out the numerical simulation calculation,and determined the reasonable parameters of roof cutting. |
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| Keywords: | gob-side entry retaining roof cutting and pressure relief pressure relief parameters |
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