| 尾砂中硫化物对充填体质量影响研究 |
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| 引用本文： | 许毓海. 尾砂中硫化物对充填体质量影响研究[J]. 矿业研究与开发, 2009, 0(5): 4-6 |
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| 作者姓名： | 许毓海 |
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| 作者单位： | 中金岭南凡口铅锌矿,广东,韶关市,512325 |
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| 摘 要： | 通过室内试验研究发现,在密闭状态下,尾砂中硫含量的高低对胶结充填体的早期与后期强度及稳定性没有明显影响;在暴露状态下,含硫量低至4%的尾砂胶结充填料试块也会出现裂纹,直至全部崩解。指出采用高含硫尾砂充填的矿房和首层充填体,在底柱和矿柱回采时,揭露时间不宜超过50d,否则会氧化破坏。
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| 关 键 词： | 胶结充填 硫化物 后期强度 密闭养护 |
Study on Influence of Sulphide in Tailings on Quality of Backfill |
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| Xu Yuhai. Study on Influence of Sulphide in Tailings on Quality of Backfill[J]. Mining Research and Development, 2009, 0(5): 4-6 |
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| Authors: | Xu Yuhai |
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| Affiliation: | Xu Yuhai(Fankou Lead-Zinc Mine of Shenzhen Zhingjin Lingnan Ninfemet Copany Limited,Shaoguan,Guangdong 512325,China) |
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| Abstract: | Laboratory test about cemented backfill indicated that the influence of the percentage of sulfur in tailings on the initial strength,later strength and stability of cemented tailings backfill in airtight state is not obvious,but,even the sulfur content is low to 4% the cemented tailings backfill in exposed state undergo cracking until entirely breaking.It was pointed out that when mining sill pillar intervening pillar the cemented tailings backfill with high sulfur content in stope and first-mined slice sho... |
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| Keywords: | Cemented backfill Sulphides Later strength Curing in airtight condition |
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