| RADIOACTIVE OR NATURAL TRACER。TECHNIQUES FOR LEAK DETERMINING OF DAM ABUTMENT |
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| 引用本文： | 陈建生,杜国平,等.RADIOACTIVE OR NATURAL TRACER。TECHNIQUES FOR LEAK DETERMINING OF DAM ABUTMENT[J].核技术(英文版),1995,6(4):230-237. |
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| 作者姓名： | 陈建生 杜国平 |
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| 作者单位： | [1]InstituteofAPPlicationofAtomicEnergy,JiangsuAcademyofAgriculturalSciences,Nanjing210014 [2]InstituteofAP,JiangsuAcademyofAgriculturalSciences,Nanjing210014 |
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| 摘 要： | Infiltration and localization of preferential infiltration zones at the dam abutment are measured using radioactive tracer tests of flow in boreholes,meanwhile interconnection between boreholes and the energing water points is analysed.The theory and practice of radioactive tracer synthetic detective method are described to give methods and calculation formulae used under the condition of stable flow in single well to measure permeability coefficient and hydrostatic heads.Major single hole techniques including measurement for seepage line,velocity,rate of seepage flow and relationship of recharge of groundwater in aquifers are introduced briefly.The possibilities offered by natureal tracers are analysed,uincluding electric-conduct,pH-value and temperature of water as well as stable isotopes(D,^18O) and tritium.Furthermore,the sensibilities of this theory and methods were confirmed by detecting seepage flow field of Xinanjiang Dam.
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| 关 键 词： | 放射性示踪 堤坝泄漏 静水压差 |
RADIOACTIVE OR NATURAL TRACER TECHNIQUES FOR LEAK DETERMINING OF DAM ABUTMENT |
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| Chen Jiansheng,Du Guoping,Zheng Zhengand Sun Jing.RADIOACTIVE OR NATURAL TRACER TECHNIQUES FOR LEAK DETERMINING OF DAM ABUTMENT[J].Nuclear Science and Techniques,1995,6(4):230-237. |
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| Authors: | Chen Jiansheng Du Guoping Zheng Zhengand Sun Jing |
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| Abstract: | Infiltration and localization of preferential infiltration zones at the dam abutment are measured using radioactive tracer tests of flow in boreholes, meanwhile interconnection between boreholes and the energing water points is analysed. The theory and practice of radioactive tracer synthetic detective method are described to give methods and calculation formulae used under the condition of stable flow in single well to measure permeability coefficient and hydrostatic heads. Major single hole techniques including measurement for seepage line, velocity, rate of seepage flow and relationship of recharge of groundwater in aquifers are introduced briefly.The possibilities offered by natural tracers are analysed, including electric-conduct,pH-value and temperature of water as well as stable isotopes (D, 18O) and tritium.Furthermore, the sensibilities of this theory and methods were confirmed by detecting seepage flow field of Xinanjiang Dam. |
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| Keywords: | Isotope tracers Natural tracers Single hole techniques Seepage flow field Hydrostatic heads |
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