期刊论文

Study on Exposure Dose of Workers Under Coal Mine in a District of Xinjiang

中文

煤矿安全

1003-496X

2016

47

2

234-236

10.13347/j.cnki.mkaq.2016.02.063

新疆维吾尔自治区核与辐射污染防治“十二五”规划调查专项基金资助项目（20110001） 南华大学“铀矿山岩土工程灾害预测与控制”校级创新团队建设基金资助项目

本校为第一机构

新疆煤炭资源储量丰富,开采量巨大,然而某些煤矿含有较高放射性核素,对井下作业人员危害较大。为了掌握新疆井下工作人员的辐射照射状况,对新疆某地3家煤矿井下γ辐射剂量率、氡浓度、粉尘的放射性核素浓度进行监测与估算。结果表明A矿与B矿井下工作人员年有效剂量相对较高,分别为4.23 m Sv和1.90 m Sv;C矿相对较小,仅为0.57 m Sv,远低于全国平均水平。A矿超过了全国平均水平,主要由γ外照射引起,占到79.9%,可以通过缩短井下作业时间进行控制;B矿接近全国平均水平,主要来源于氡和氡子体内照射,占到总剂量的89.6%。可以通过隔离氡的析出和加强通风等方式降低受照剂量。

It is rich in coal resource and then arise a large amount of coal mining in Xinjiang Province. However, the Radionuclide content of some mines is very high and brings huge harm to underground workers. In order to know well the radiation condition of the workers, the gamma radiation dose rate, radon concentration and radionuclide concentration of dust in three mines were estimated in this paper. The results show that the annual effective dose of A mine and B mine are 4.23 mSv and 1.90 mSv, respectively and obviously higher than C mine which only is 0.57 mSv that far below the national average. ...