| 露天转地下开采境界矿柱安全厚度确定 |
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| 引用本文： | 谷中元,谢亮波.露天转地下开采境界矿柱安全厚度确定[J].金属矿山,2012,41(12):14. |
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| 作者姓名： | 谷中元 谢亮波 |
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| 作者单位： | 1.中钢钢研科技集团吉林工程技术有限公司；2.中钢集团马鞍山矿山研究院有限公司；3.金属矿山安全与健康国家重点实验室；4.金属矿产资源高效循环利用国家工程研究中心 |
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| 摘 要： | 根据杏山铁矿露天转地下开采的工程实际，基于K.B.鲁佩涅依特理论估算法，计算得到杏山铁矿露天转地下开采境界矿柱合理厚度应在12.34~17.11 m之间，并利用MIDAS/GTS 数值模拟软件对境界矿柱厚度为12 m、14 m、16 m、18 m等4个数值模拟方案进行了计算。从境界矿柱沉降、采场底臌、境界矿柱最大拉应力和采场围岩最大压应力等方面进行了综合分析，得到境界矿柱厚度的最佳值为16 m。
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| 关 键 词： | 露天转地下 境界矿柱 安全厚度 数值模拟 |
Determination of Boundary Pillar's Safety Thickness in Transition from Open-pit to Underground Mining |
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| Gu Zhongyuan
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Xie Liangbo.Determination of Boundary Pillar's Safety Thickness in Transition from Open-pit to Underground Mining[J].Metal Mine,2012,41(12):14. |
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| Authors: | Gu Zhongyuan Xie Liangbo |
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| Affiliation: | 1.China Iron & Steel Research Institute Group Jilin Engineering & Technology Co., Ltd；2.Sinosteel Maanshan Institute of Mining Research Co.，Ltd.；3.State Key Laboratory of Safety and Heath for Metal Mines；4.National Engineering Research Center of High Efficiency Cyclic Utilization of Metal Mineral Resources; |
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| Abstract: | According to the engineering practice pf the transition from open-pit to underground in Xingshan iron ore, based on the K.B.LuPei brezhnev's estimation method, the reasonable thickness of boundary pillar in Xingshan iron ranges at between 12.34 to 17.11 m.4 numerical simulation schemes whose boundary pillar thickness are 12 m, 14 m, 16 m, 18 m are built and calculated by using numerical simulation software MIDAS/GTS, and are analyzed from boundary pillar subside, stope pucking, the maximum tensile stress of boundary pillar and the maximum compressive stress of surrounding rock in the stope.It concluded that the optimal thickness of boundary pillar is 16 m. |
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| Keywords: | Transition from open-pit to underground Boundary pillar Safety thickness Numerical simulation |
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