倾斜-急倾斜多层矿体回采时安全阶段高度的确定
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摘要
多层排列矿床过程中高度是矿床安全开采的重要因素之一。结合多层矿床赋存的情况以及开采的特点,以倾斜~急倾斜矿体为主,研究其不一样的开采方式对紧挨着的矿层的影响的关系,并且创建安全开采过程中高度还有矿体的间距、围岩移动角以及矿体倾角等赋存因素的解析关系式,在这一基础上研究每一个因素对安全开采阶段高度的影响变化。经过分析统计,最终用于验证实际矿山安全阶段高度的选择科学合理,其能够选择多层矿体安全开采步骤的高度提供理论支持。
The height of multi-layered deposit is one of the important factors for its safe mining. Combining the occurrence of multi-layered deposits and the characteristics of mining,and taking inclined-steep orebodies as the main subject,the influence of different mining methods on adjacent ore bed was investigated. Analytic relationship between the height of safe mining and orebody gap,displacement angle of surrounding rock and dip angle of orebody was developed. On this basis,the influence of these factors on the height of safe mining was studied. After analysis and statistics,it can be used to verify whether the selected safe stage height is scientific and rational in actual mining and it can also provide theoretical support for determining the safe stage height in the mining of multi-layered deposits.
The height of multi-layered deposit is one of the important factors for its safe mining. Combining the occurrence of multi-layered deposits and the characteristics of mining,and taking inclined-steep orebodies as the main subject,the influence of different mining methods on adjacent ore bed was investigated. Analytic relationship between the height of safe mining and orebody gap,displacement angle of surrounding rock and dip angle of orebody was developed. On this basis,the influence of these factors on the height of safe mining was studied. After analysis and statistics,it can be used to verify whether the selected safe stage height is scientific and rational in actual mining and it can also provide theoretical support for determining the safe stage height in the mining of multi-layered deposits.
引文
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[2]王文会,闫顺玲,原香民.尹格庄金矿开拓中段高度的研究[J].采矿技术,2002,2(3):30-32.
[3]杨福波.多中段回采对采空区顶板稳定性影响的研究[J].采矿技术,2013,13(1):39-40.
[4]池秀文,刘敏.基于梁模型的采场顶板稳定性分析[J].中国矿业,2012,21(8):113-115.
[5]林坤峰,柯丽华,马志伟.上横山缓倾斜多层钒矿合理采矿方法探讨[J].中国矿业,2013,22(2):92-95.
[6]李铀,白世伟,杨春和,等.矿山覆岩移动特征与安全开采深度[J].岩土力学,2005,26(1):27-32.
[7]胡倩,叶义成,王其虎,等.多层矿床地下开采安全开采阶段高度研究[J].矿业研究与开发,2014,34(6):10.