论文部分内容阅读
动船法测流是目前较先进的一种流量测验方法,适合于大江大河的流量测验。以往大江大河的流量测验,有的采用定船抛锚法在河中抛几条船,用几十个人轮班不停地测量,需要化费大量的人力、物力。在航运繁忙的河道中测量危险更大。而动船法测流,设施简单,施测速度快,可以连续测得流量变化的过程,同时采用电子计算机控制处理,可以减轻劳动强度,提高工作效率,为逐步解决黄浦江中下游的流量测验提供了一种新的方法。一、动船测流的基本原理和试验情况1.测量原理
Dynamic flow measurement method is currently a more advanced flow test method, suitable for large river flow test. In the past, large-scale river flow test, and some using anchor-breaking law thrown a few boats in the river, with dozens of people constantly shift measurements, the need to spend a lot of manpower and material resources. It is even more dangerous to measure in the busy shipping river. The dynamic flow measurement, simple facilities, fast measuring speed, continuous measurement of flow changes, while the use of computer control processing, can reduce labor intensity and improve work efficiency, and gradually solve the middle and lower reaches of the Huangpu River flow test Provide a new method. First, the basic principles of hydrodynamic flow test and test conditions 1. Measuring principle