| 某矿大型采空区顶板冒落危害及处理 |
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| 引用本文： | 王洋喆, 郭忠林. 某矿大型采空区顶板冒落危害及处理[J]. 矿产保护与利用, 2015, (3): 10-15. doi: 10.13779/j.cnki.issn1001-0076.2015.03.003 |
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| 作者姓名： | 王洋喆 郭忠林 |
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| 作者单位： | 昆明理工大学国土资源工程学院,云南昆明,650093;; 昆明理工大学国土资源工程学院,云南昆明,650093 |
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| 摘 要： | 以云南某钨矿2280 m中段采空区为工程背景,研究采空区冒落所产生的危害影响并进行处理措施。首先通过对“上覆岩层三带理论”以及冒落“空气冲击波”的模型进行分析;其次对采空区冒落所产生的冒裂带的高度、空气冲击波的速度进行计算。研究结果表明:2280 m中段采空区的冒裂带不贯通地表,但采空区的冒落产生的空气冲击波对井下的人员生命、生产设备、安全生产造成威胁;最后通过比较四种基本采空区处理方法优劣,最终选择封闭隔离法对采空区进行处理。
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| 关 键 词： | 采空区 顶板冒落 空气冲击波 封闭隔离法 |
The Detriment and Solution of Roof Caving in the Mined-out Area of a Large Mine |
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| WANG Yangzhe, GUO Zhonglin. The Detriment and Solution of Roof Caving in the Mined-out Area of a Large Mine[J]. Conservation and Utilization of Mineral Resources, 2015, (3): 10-15. doi: 10.13779/j.cnki.issn1001-0076.2015.03.003 |
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| Authors: | WANG Yangzhe GUO Zhonglin |
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| Abstract: | In this paper , a tungsten mine goaf 2 280 meters underground in Yunnan was taken as engineering background and a research on harmful impact of roof caving as well as treatment meas -ures were carried out .The paper analyzed the theory of “overburden three zones”and the model of caving of air shock wave , and calculated the height of crack zone and the speed of air blast wave . The results showed that the goaf had no effect on the surface , but air shock wave threatened life of underground personnel and safety of production equipment and production process .Finally, a closed isolation method was chose to deal with mined -out area by comparing the four basic goaf treatment methods . |
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| Keywords: | goaf roof falling air shock wave closed isolation method |
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