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Determining Sediment Concentration in Runoff Flow with γ Ray Attenuation and the Related Theoretical Algorithm
Authors
刘清坤
王辉
+3 more
袁建平
赵军
雷廷武
Publication date
1 January 2002
Publisher
Abstract
首次尝试采用 γ射线透射法测量土壤侵蚀径流中的含沙量。用两种不同土壤 (黄绵土、粘土 )、三种含沙量增量 (3%、5 %、10 % )和三种测量时间 (6 s、10 s、2 0 s)进行了含沙量测量实验 ,以验证用 γ射线测量泥沙含量的可行性、确定泥沙含量对 γ射线的响应特性。并推导了根据 γ射线透射强度计算含沙量的理论计算公式。将实验结果与理论计算值进行对比 ,以检验理论计算的准确性和测量实验与理论计算的一致性。结果表明 ,γ射线透射通过泥沙溶液的强度与水流含沙量间有极度显著的线性相关关系 ,并与理论计算结果高度一致 ,表明可由 γ射线透射强度稳定、可靠、准确地确定含沙量
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018