用γ-射线回淤仪定点观测镇江港港池淤积变化过程  

Determination of Siltation Rate by a New Type of γ-Ray Siltation Gauge in Fixed Observation Points in Zhenjiang Harbor Basin

作　　者：吴永进[1] 

机构地区：[1]南京水利科学研究院

出　　处：《泥沙研究》1989年第3期35-43,共9页Journal of Sediment Research

摘　　要：本文简要叙述了γ-透射法回淤仪的结构,测量原理,室内外试验情况,并概括地介绍用γ-回淤仪在镇江港港池进行定点回淤观测中所取得的资料和港池淤积与含沙量、潮位、流速的初步关系.本次测量仪器测淤厚度为45cm,测量精度为0.32mm.试验结果表明,该项测试技术是研究港口、航道泥沙淤积规律的一种有效的测量手段.The measuring principle, structure of the γ-ray gauge and its laboratory and field experiments are briefly described. Also, the results of siltation obtained from the field investigations by using the γ-ray siltation gauge in some fixed points in Zhenjiang Harbor basin and the relationship between siltation rate and sediment concentration, tidal level and current velocity are generally presented. The maximum measuring thickness for the gauge is 45cm and the precision is 0.32mm. The experimental results have shown that this technique is a very useful and effective measuring method for the field investigations of siltation in harbor basins and navigation channels.

关 键 词：港池 淤积 γ-回淤仪 泥沙 

分 类 号：TV148.6[水利工程—水力学及河流动力学]