| 云锡矿山井巷防氡密闭方法的试验 |
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| 引用本文： | 黄怀清,董永龄,赵春元.云锡矿山井巷防氡密闭方法的试验[J].铀矿冶,1988(2). |
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| 作者姓名： | 黄怀清 董永龄 赵春元 |
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| 作者单位： | 云南锡业公司劳动防护研究所
(黄怀清，董永龄)，云南锡业公司劳动防护研究所(赵春元) |
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| 摘 要： | 云锡各矿,为了消除放射性氡及其子体危害,降低各矿岩表面氡的析出,开展了对井巷壁喷涂混凝土防氡复盖层的工作,一般可降低矿岩表面氡析出率77.65—94.58％,取得了较好的效果。密闭墙是对矿山井下采空区和废旧巷道进行防氡密闭的重要措施,云锡各矿山设置了数以万(个)计的密闭墙。为了检验其密闭效果特设计了一种新的测试方法。经现场使用,简便、易行、可靠,并对各种不同的密闭墙进行了气密性压差值的测定。发现以往建筑的各种密闭墙漏风量大,后来采取措施,对单砖密闭墙采用水泥砂浆粉面降低漏风量99％,取得了密闭的良好效果。
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| 关 键 词： | 辐射防护 井巷防氡密闭 |
EXPERIMENTS WITH SEALING PROTECTIONS FROM RADON IN YUNNAN TIN CORPORATION UNDERGROUND MINES |
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| Huang Huaiqing Dong Yongling Zhao Zhunyuan.EXPERIMENTS WITH SEALING PROTECTIONS FROM RADON IN YUNNAN TIN CORPORATION UNDERGROUND MINES[J].Uranium Mining and Metallurgy,1988(2). |
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| Authors: | Huang Huaiqing Dong Yongling Zhao Zhunyuan |
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| Abstract: | In this paper two methods of protection from radon are cescribed. covering the walls with gunited concrete and building the sealing walls for mine goaves and used tunnels. The effects of sealing have been determined by a new method, which is simPle and reliable. Generally, the radon release from rock surface can be reduced 77.65-94.58%,when the method of cover-ing the wall with gunited concrete and the air leakage can be decreased 99% by using sealing walls with gunite cement lining. |
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| Keywords: | Radiation protection Underground sealing protection from radon |
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