崩落法转充填法采场隔离矿柱合理厚度研究
TD853.36%TD853.34; 对于崩落法开采向充填法开采转变的矿山,受崩落法开采的采动影响,其工程地质条件会变得相对复杂,围岩完整性及其稳定性相对较差,开采技术条件相对复杂.为确保矿山下一步生产作业的安全,必须要在崩落法采场与充填法采场之间留设隔离矿柱.本文结合矿山实际工程地质条件,创新地采用了以考虑采空区顶板垮塌冲击动载荷的弹性小薄板理论为代表的多种理论分析方法,确定了崩落法转充填法采场之间水平隔离矿柱的尺寸,采用结合矿山围岩移动参数和Bieniaw ski矿柱强度理论的方式,计算了崩落法转充填法采场之间隔离间柱的尺寸.与此同时,采用Phase2二维数值模拟的方式对隔离间柱的尺寸合理...
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| Published in | 中国矿业 Vol. 31; no. 9; pp. 95 - 101 |
|---|---|
| Main Authors | , , , , , |
| Format | Magazine Article |
| Language | Chinese |
| Published |
金属矿山安全技术国家重点实验室,湖南长沙410012%临沂会宝岭铁矿有限公司,山东临沂277712
01.09.2022
长沙矿山研究院有限责任公司,湖南长沙410012 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1004-4051 |
| DOI | 10.12075/j.issn.1004-4051.2022.09.008 |
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| Abstract | TD853.36%TD853.34; 对于崩落法开采向充填法开采转变的矿山,受崩落法开采的采动影响,其工程地质条件会变得相对复杂,围岩完整性及其稳定性相对较差,开采技术条件相对复杂.为确保矿山下一步生产作业的安全,必须要在崩落法采场与充填法采场之间留设隔离矿柱.本文结合矿山实际工程地质条件,创新地采用了以考虑采空区顶板垮塌冲击动载荷的弹性小薄板理论为代表的多种理论分析方法,确定了崩落法转充填法采场之间水平隔离矿柱的尺寸,采用结合矿山围岩移动参数和Bieniaw ski矿柱强度理论的方式,计算了崩落法转充填法采场之间隔离间柱的尺寸.与此同时,采用Phase2二维数值模拟的方式对隔离间柱的尺寸合理性进行了验证,最终实现了矿山崩落法到充填法的顺利转型,在保证矿山下一步安全回采的基础上,提高了矿石回收率,为矿山创造了一定的经济效益. |
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| AbstractList | TD853.36%TD853.34; 对于崩落法开采向充填法开采转变的矿山,受崩落法开采的采动影响,其工程地质条件会变得相对复杂,围岩完整性及其稳定性相对较差,开采技术条件相对复杂.为确保矿山下一步生产作业的安全,必须要在崩落法采场与充填法采场之间留设隔离矿柱.本文结合矿山实际工程地质条件,创新地采用了以考虑采空区顶板垮塌冲击动载荷的弹性小薄板理论为代表的多种理论分析方法,确定了崩落法转充填法采场之间水平隔离矿柱的尺寸,采用结合矿山围岩移动参数和Bieniaw ski矿柱强度理论的方式,计算了崩落法转充填法采场之间隔离间柱的尺寸.与此同时,采用Phase2二维数值模拟的方式对隔离间柱的尺寸合理性进行了验证,最终实现了矿山崩落法到充填法的顺利转型,在保证矿山下一步安全回采的基础上,提高了矿石回收率,为矿山创造了一定的经济效益. |
| Author | 胡军伟 王阡 宋阳 何环莎 吕冠颖 覃敏 |
| AuthorAffiliation | 长沙矿山研究院有限责任公司,湖南长沙410012;金属矿山安全技术国家重点实验室,湖南长沙410012%临沂会宝岭铁矿有限公司,山东临沂277712 |
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| Author_FL | SONG Yang LYU Guanying QIN Min HE Huansha HU Junwei WANG Qian |
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| Keywords | 冲击动载荷 充填法 隔离矿柱 数值模拟 岩层移动 崩落法 |
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| Title | 崩落法转充填法采场隔离矿柱合理厚度研究 |
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