| Investigation and characterization of mining subsidence in Kaiyang Phosphorus Mine |
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| 作者姓名： | 邓建 边利 |
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| 作者单位： | [1]School of Resources and Safety Engineering, Central South University, Changsha 410083, China [2]School of Business, Central South University, Changsha 410083, China |
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| 基金项目： | 国家自然科学基金;湖南省自然科学基金 |
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| 摘 要： | In Kaiyang Phosphorus Mine, serious environmental and safety problems are caused by large scale mining activities in the past 40 years. These problems include mining subsidence, low recovery ratio, too much dead ore in pillars, and pollution of phosphorus gypsum. Mining subsidence falls into four categories： curved ground and mesa, ground cracks and collapse hole, spalling and eboulement, slope slide and creeping. Measures to treat the mining subsidence were put forward： finding out and managing abandoned stopes, optimizing mining method （cut and fill mining method）, selecting proper backfilling materials （phosphogypsum mixtures）, avoiding disorder mining operation, and treating highway slopes. These investigations and engineering treatment methods are believed to be able to contribute to the safety extraction of ore and sustainable development in Kaiyang Phosphorus Mine.
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| 关 键 词： | 采矿学 矿物沉淀 地面破裂 安全性 kaiyang磷矿 采矿学方法 |
| 收稿时间： | 24 October 2006 |
| 修稿时间： | 2006-10-242006-12-27 |
Investigation and characterization of mining subsidence in Kaiyang Phosphorus Mine |
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| Deng Jian,and Bian Li.Investigation and characterization of mining subsidence in Kaiyang Phosphorus Mine[J].Journal of Central South University of Technology,2007,14(3):413-417. |
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| Authors: | Deng Jian and Bian Li |
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| Affiliation: | 1. School of Resources and Safety Engineering, Central South University, Changsha 410083, China; 2. School of Business, Central South University, Changsha 410083, China |
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| Abstract: | In Kaiyang Phosphorus Mine, serious environmental and safety problems are caused by large scale mining activities in the past 40 years. These problems include mining subsidence, low recovery ratio, too much dead ore in pillars, and pollution of phosphorus gypsum. Mining subsidence falls into four categories: curved ground and mesa, ground cracks and collapse hole, spalling and eboulement, slope slide and creeping. Measures to treat the mining subsidence were put forward: finding out and managing abandoned stopes, optimizing mining method (cut and fill mining method), selecting proper backfilling materials (phosphogypsum mixtures), avoiding disorder mining operation, and treating highway slopes. These investigations and engineering treatment methods are believed to be able to contribute to the safety extraction of ore and sustainable development in Kaiyang Phosphorus Mine. |
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| Keywords: | mining subsidence ground cracking safety Kaiyang Phosphorus Mine cut and fill mining method |
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