引绰济辽工程文得根引水隧洞放射性调查评价
|
摘要
对长约70 km引水工程洞线上进行的地面伽马能谱测量、陆地伽马剂量率测量、土壤氡浓度测量、岩石表面氡析出率测量以及钻孔岩芯样品的放射性元素U、Ra、Th、K含量分析的综合放射性地质调查,并对获得的测量数据进行分析研究。结果表明,测区引水沿线地质体放射性核素当量含量平均值为:U 1.56×10~(-6),Th 14.12×10~(-6),K 2.16×10~(-2);钻孔岩芯放射性元素分析含量平均值为:U32.34 Bq/kg,Ra 35.68 Bq/kg,Th 35.29 Bq/kg,K 865.65 Bq/kg。陆地伽马剂量率为90.42 n Gy/h;土壤氡浓度平均值为4 272.1 Bq/m~3;岩石表面析出率平均值为4.01×10~(-2)Bq/m~2·s。根据测量结果,利用内照射和外照射辐射剂量计算了对施工人员造成的辐照剂量为0.759 m Sv,低于国家对公众的剂量限值1 m Sv/a,表明引水工程输水隧洞的施工在安全辐射范围内。
Based on the comprehensive radioactivity survey for the chosen diversion project tunnel line,several measurements and analyses were carried out,e.g.the ground gamma ray spectrum measurement,ground gamma dose rate measurement,soil radon concentration measurement,measurement of radon exhalation rate on rock surface,and content analysis of radioactive element uranium,radium,thorium and potassium for the drillcore samples.The results showed that the mean value of radionuclide content of the geological bodies along water diversion tunnel line are:U 1.56×10~(-6),Th 14.12×10~(-6)and K 2.16%.The mean value of radioactive elements in drillcore are:U 32.34 Bq/kg,Ra 35.68 Bq/kg,Th 35.29 Bq/kg and K 865.65 Bq/kg.The ground gamma dose rate is 90.42 n Gy/h,the mean soil radon concentration is 4 272.1 Bq/m~3,and the average radon exhalation rate of rock is 4.01×10~(-2)Bq/m~2·s.The possible irradiation dose to the construction personnel is 0.759 m Sv,which is calculated from the irradiation and the radiation based on outside and inside measurements,the results showed that the radiation levels of the survey area were lower than 1 m Sv/a,which is the national dose limit for the public,indicating that the construction of water conveyance tunnel of water diversion project is in the safe radiation range.
Based on the comprehensive radioactivity survey for the chosen diversion project tunnel line,several measurements and analyses were carried out,e.g.the ground gamma ray spectrum measurement,ground gamma dose rate measurement,soil radon concentration measurement,measurement of radon exhalation rate on rock surface,and content analysis of radioactive element uranium,radium,thorium and potassium for the drillcore samples.The results showed that the mean value of radionuclide content of the geological bodies along water diversion tunnel line are:U 1.56×10~(-6),Th 14.12×10~(-6)and K 2.16%.The mean value of radioactive elements in drillcore are:U 32.34 Bq/kg,Ra 35.68 Bq/kg,Th 35.29 Bq/kg and K 865.65 Bq/kg.The ground gamma dose rate is 90.42 n Gy/h,the mean soil radon concentration is 4 272.1 Bq/m~3,and the average radon exhalation rate of rock is 4.01×10~(-2)Bq/m~2·s.The possible irradiation dose to the construction personnel is 0.759 m Sv,which is calculated from the irradiation and the radiation based on outside and inside measurements,the results showed that the radiation levels of the survey area were lower than 1 m Sv/a,which is the national dose limit for the public,indicating that the construction of water conveyance tunnel of water diversion project is in the safe radiation range.
引文
[1]王虹,沈勇君,石梦蝶,等.武汉市轨道交通2号线各站段氡浓度水平的初步调查[J].中国辐射卫生,2017,26(4):443-444.WANG Hong,SHEN Yong-jun,SHI Meng-die,et al.Preliminary investigation on the radon concentration level of each station in Wuhan metro line 2[J].Chinese Journal of Radiological Health,2017,26(4):443-444.
[2]张峰.某隧洞输水工程放射性调查及评价[J].陕西水利,2015(3):131-134.ZHANG Feng.Radioactive investigation and evaluation of water diversion project in a tunnel[J].Shaanxi Province Water Conservancy,2015(3):131-134.
[3]王贤峰,林映涛,张展.海南岛东北部放射性地质及环境评价[J].云南化工,2017,44(9):83-87.WANG Xian-feng,LIN Ying-tao,ZHANG Zhan.Radioactive geology and environmental assessment in northeastern of Hainan Island[J].Yunnan Chemical Technology,2017,44(9):83-87.
[4]段贵明,谭建祖.某新建铁路隧道放射性调查及评价[J].西部探矿工程,2014(3):184-187.DUAN Gui-ming,TAN Jian-zhu.Investigation and evaluation of radioactivity in a new railway tunnel[J].WestChina Exploration Engineering,2014(3):184-187.
[5]邓争荣,吴树良,雷世兵,等.水利水电地下工程勘察中的放射性测试[J].人民长江,2012,43(13):28-31.DENG Zheng-rong,WU Shu-liang,LEI Shi-bing,et al.Radioactive test in underground engineering investigation of water conservancy and hydropower[J].People Yangtze River,2012,43(13):28-31.
[6]曾魁,何广海.深圳市某引水隧洞氡气防护技术监测试验研究[J].资源环境与工程,2013,27(4):525-528.ZENG Kui,HE Guang-hai.Study on protection technology of tunnel radon monitoring test of a diversion in Shenzhen City[J].Resource Environment and Engineering,2013,27(4):525-528.
[7]林国兵.隧洞施工中氡气和γ射线的安全防护[J].广东建材,2013(4):85-88.LIN Guo-bing.Safety protection in tunnel construction of radon and gamma rays[J].Guangdong Building Materials,2013(4):85-88.
[8]史天骄,王希,焦纯.区域天然放射性环境调查与评价方法的讨论[J].铀矿冶,2012,31(4):214-216.SHI Tian-jiao,WANG Xi,JIAO Chun.Discussion on regional natural radioactive environmental investigation and evaluation method[J].Uranium Mining and Metallurgy,2012,31(4):214-216.
[9]GB18871--2002电离辐射防护与辐射源安全基本标准[S].北京:中华人民共和国国家质量监督检验检疫局,2002.GB18871--2002 Basic standards for the protection of ionizing radiation and the safety of radiation[S].Beijing:The State Administration of Quality Supervision Inspection and Quarantine Issued by the People's Republic of China,2002.
[10]GB/T14583-93环境地表γ辐射剂量率测定规范[S].北京:国家环境保护局和国家技术监督局,1993.GB/T14583--93 Norm for the measurement of environmental terrestrial gamma-radiation dose rate[S].Beijing:The State Environmental Protection Agency and the National Bureau of Technical Supervision,1993.
[11]DZ/T0205--1999地面γ能谱测量技术规范[S].北京:中国核工业总公司,1999.DZ/T0205--1999 Technical specification for ground gamma energy spectrum measurement[S].Beijing:China National Nuclear Corporation,1999.
[12]EJ/T605/95氡及其子体测量规范[S].北京:中国核工业总公司,1995.EJ/T605/95 Standard for measurement of radon and its progeny[S].Beijing:China National Nuclear Corporation,1995.
[13]EJ/T 979--95表面氡析出率测定-积累法[S].北京:中国核工业总公司,1995.EJ/T979--95 Surface radon exhalation rate measurementaccumulation method[S].Beijing:China National Nuclear Corporation,1995.
[14]GB 50325--2010民用建筑工程室内环境污染控制规范[S].北京:中华人民共和国国家质量监督检验检疫总局与中华人民共和国建设部,2010.GB50325-2001 Code for indoor environmental pollution control of civil building engineering[S].Beijing:General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China and Ministry of Construction of the People's Republic of China,2010.
[15]GB 11713--89用半导体γ谱仪分析低比活度γ放射性样品的标准方法[S].北京:中华人民共和国卫生部,1989.GB11713--89 Standard methods for analyzing low specific gamma radioactivity of samples by semiconductor gamma spectrometers[S].Beijing:Ministry of Health of the People's Republic of China,1989.
[16]贺小凤,王国胜.室内氡浓度与建筑材料表面氡析出率的关系研究[J].环境科学与技术,2012,35(2):110-113.HE Xiao-feng,WANG Guo-sheng.Exhalation rate from building materials surface[J].Environmental Science&Technology,2012,35(2):110-113.
[17]李素云.UNSCEAR 1993年报告附件A内容简介[J].辐射防护通讯,1994,14(5):1-3.LI Su-yun.UNSCEAR 1993 report annex A content[J].Radiation Protection Bulletin,1994,14(5):1-3.
[18]陈如松.UNSCEAR 1986及1988年报告:发现与含意[J].辐射防护通讯,1990,10(4):46-51.CHEN Ru-song.UNSCEAR 1986 and 1988 report:findings and implications[J].Radiation Protection Bulletin,1990,10(4):46-51.
[19]武晓燕,古晓娜,马跃峰,等.极低放固体废物填埋作业人员个人剂量估算[J].中国辐射卫生,2016,25(2):173-175.WU Xiao-yan,GU Xiao-na,MA Yue-feng,et al.Dose estimation to landfill disposal worker for very low level radioactive waste[J].Chinese Journal of Radiological Health,2016,25(2):173-175.
[20]陈汉宁,谢文倩,文寄中,等.输水工程施工隧洞氡气超标防护措施分析[J].中国农村水利水电,2015(2):166-168.CHEN Han-ning,XIE Wen-qian,WEN Ji-zhong,et al.Analysis of the protective measures of radon gas in the construction tunnel of water transmission project[J].Rural water and hydropower in China,2015(2):166-168.
[2]张峰.某隧洞输水工程放射性调查及评价[J].陕西水利,2015(3):131-134.ZHANG Feng.Radioactive investigation and evaluation of water diversion project in a tunnel[J].Shaanxi Province Water Conservancy,2015(3):131-134.
[3]王贤峰,林映涛,张展.海南岛东北部放射性地质及环境评价[J].云南化工,2017,44(9):83-87.WANG Xian-feng,LIN Ying-tao,ZHANG Zhan.Radioactive geology and environmental assessment in northeastern of Hainan Island[J].Yunnan Chemical Technology,2017,44(9):83-87.
[4]段贵明,谭建祖.某新建铁路隧道放射性调查及评价[J].西部探矿工程,2014(3):184-187.DUAN Gui-ming,TAN Jian-zhu.Investigation and evaluation of radioactivity in a new railway tunnel[J].WestChina Exploration Engineering,2014(3):184-187.
[5]邓争荣,吴树良,雷世兵,等.水利水电地下工程勘察中的放射性测试[J].人民长江,2012,43(13):28-31.DENG Zheng-rong,WU Shu-liang,LEI Shi-bing,et al.Radioactive test in underground engineering investigation of water conservancy and hydropower[J].People Yangtze River,2012,43(13):28-31.
[6]曾魁,何广海.深圳市某引水隧洞氡气防护技术监测试验研究[J].资源环境与工程,2013,27(4):525-528.ZENG Kui,HE Guang-hai.Study on protection technology of tunnel radon monitoring test of a diversion in Shenzhen City[J].Resource Environment and Engineering,2013,27(4):525-528.
[7]林国兵.隧洞施工中氡气和γ射线的安全防护[J].广东建材,2013(4):85-88.LIN Guo-bing.Safety protection in tunnel construction of radon and gamma rays[J].Guangdong Building Materials,2013(4):85-88.
[8]史天骄,王希,焦纯.区域天然放射性环境调查与评价方法的讨论[J].铀矿冶,2012,31(4):214-216.SHI Tian-jiao,WANG Xi,JIAO Chun.Discussion on regional natural radioactive environmental investigation and evaluation method[J].Uranium Mining and Metallurgy,2012,31(4):214-216.
[9]GB18871--2002电离辐射防护与辐射源安全基本标准[S].北京:中华人民共和国国家质量监督检验检疫局,2002.GB18871--2002 Basic standards for the protection of ionizing radiation and the safety of radiation[S].Beijing:The State Administration of Quality Supervision Inspection and Quarantine Issued by the People's Republic of China,2002.
[10]GB/T14583-93环境地表γ辐射剂量率测定规范[S].北京:国家环境保护局和国家技术监督局,1993.GB/T14583--93 Norm for the measurement of environmental terrestrial gamma-radiation dose rate[S].Beijing:The State Environmental Protection Agency and the National Bureau of Technical Supervision,1993.
[11]DZ/T0205--1999地面γ能谱测量技术规范[S].北京:中国核工业总公司,1999.DZ/T0205--1999 Technical specification for ground gamma energy spectrum measurement[S].Beijing:China National Nuclear Corporation,1999.
[12]EJ/T605/95氡及其子体测量规范[S].北京:中国核工业总公司,1995.EJ/T605/95 Standard for measurement of radon and its progeny[S].Beijing:China National Nuclear Corporation,1995.
[13]EJ/T 979--95表面氡析出率测定-积累法[S].北京:中国核工业总公司,1995.EJ/T979--95 Surface radon exhalation rate measurementaccumulation method[S].Beijing:China National Nuclear Corporation,1995.
[14]GB 50325--2010民用建筑工程室内环境污染控制规范[S].北京:中华人民共和国国家质量监督检验检疫总局与中华人民共和国建设部,2010.GB50325-2001 Code for indoor environmental pollution control of civil building engineering[S].Beijing:General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China and Ministry of Construction of the People's Republic of China,2010.
[15]GB 11713--89用半导体γ谱仪分析低比活度γ放射性样品的标准方法[S].北京:中华人民共和国卫生部,1989.GB11713--89 Standard methods for analyzing low specific gamma radioactivity of samples by semiconductor gamma spectrometers[S].Beijing:Ministry of Health of the People's Republic of China,1989.
[16]贺小凤,王国胜.室内氡浓度与建筑材料表面氡析出率的关系研究[J].环境科学与技术,2012,35(2):110-113.HE Xiao-feng,WANG Guo-sheng.Exhalation rate from building materials surface[J].Environmental Science&Technology,2012,35(2):110-113.
[17]李素云.UNSCEAR 1993年报告附件A内容简介[J].辐射防护通讯,1994,14(5):1-3.LI Su-yun.UNSCEAR 1993 report annex A content[J].Radiation Protection Bulletin,1994,14(5):1-3.
[18]陈如松.UNSCEAR 1986及1988年报告:发现与含意[J].辐射防护通讯,1990,10(4):46-51.CHEN Ru-song.UNSCEAR 1986 and 1988 report:findings and implications[J].Radiation Protection Bulletin,1990,10(4):46-51.
[19]武晓燕,古晓娜,马跃峰,等.极低放固体废物填埋作业人员个人剂量估算[J].中国辐射卫生,2016,25(2):173-175.WU Xiao-yan,GU Xiao-na,MA Yue-feng,et al.Dose estimation to landfill disposal worker for very low level radioactive waste[J].Chinese Journal of Radiological Health,2016,25(2):173-175.
[20]陈汉宁,谢文倩,文寄中,等.输水工程施工隧洞氡气超标防护措施分析[J].中国农村水利水电,2015(2):166-168.CHEN Han-ning,XIE Wen-qian,WEN Ji-zhong,et al.Analysis of the protective measures of radon gas in the construction tunnel of water transmission project[J].Rural water and hydropower in China,2015(2):166-168.