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一、前言 我国海岸线长达18,000多公里,有长江、黄河等数百余条大小河流倾注入海。河口是沟通河海航运的纽带,但目前河口拦门沙已成为发展航运事业必须克服的重大障碍。 河口泥沙运动和沉积机理,是一个复杂的问题,尚在继续研究中。在实际工程中所碰到的泥沙问题,有时还不能完全通过模型试验手段来解决,而不得不借助于各种各样观测原体泥沙运动方法加以综合研究,示踪法就是其中的一种。
I. Introduction China’s coastline stretches for more than 18,000 kilometers and hundreds of rivers, such as the Yangtze River and the Yellow River, pour into the sea. The estuary is a link to the river and sea shipping, but at present the estuarine barrage has become a major obstacle that must be overcome in developing the shipping business. Estuarine sediment movement and sedimentation mechanism, is a complex issue, is still continuing to study. Sediment problems encountered in practical projects are sometimes not completely solved by means of model tests and have to be studied by means of various methods of sediment movement of observation bodies. Tracer method is one of them Species.