用中子活化分析研究杭州湾北岸底沙运动  

STUDY ON BED-LOAD MOVEMENT BY NEUTRON ACTIVAION ANALYSIS ALONG NORTH BANK OF HANGZHOU BAY

作　　者：茅志祥[1] 严佩岚[1] 戴贤凯[1] 钱琴芳[2] 田继兵[2] 

机构地区：[1]南京水利科学研究院 [2]中国科学院高能物理研究所

出　　处：《海洋工程》1991年第2期63-72,共10页The Ocean Engineering

摘　　要：本文简要介绍研究泥沙运动的方法,其中以中子活化分析天然泥沙方法为最经济又方便,且数据可靠。文中主要叙述了中子活化分析天然泥沙法的原理及在杭州湾北岸研究底沙运动的应用情况.这次试验区域是杭州湾北岸,共取现场泥样27个。通过定量分析测得每个样品里含的25种元素。根据扩散原理及统计理论,用计算机进行数据处理,得出该区域底沙运动的方向。利用元素含量比值——面积法,估算了各局部取样地及从芦潮港到乍浦整个试验区域的相对输沙量。A new method of Neutron Activation Analysis (NAA) for sediment movement is presented in this paper. Authors describe the principles and application on investigation of bed-load movement along North Bank of Hangzhou Bay.27 bed-load samples were callected in the test region. The contents of 25 elements in each sample were obtained by NAA. On the basis of the diffusion law and the statistic theory, authors have treated these data by the computer, and have given the movement direction of the bed-load. The computation by the rate-area method developed by the authors have given the relative sediment discharge of (Pload districts and of the whole test region. The method of NAA is economical, practical and reliable.

关 键 词：底沙 中子活化分析 杭州湾北岸 泥沙运动 输沙量 试验区域 来沙量 面积法 输移 示踪 

分 类 号：P75[天文地球—海洋科学]