基于NETSTARS运用定床水理原理在河道疏浚中的应用

Application of Fixed Bed Water Physical Property Theory in Channel Dredging Based on NETSTARS

疏浚大多用于河道的过分淤积,拓宽则用于通水隘口的消除。而随着时空的演变河床疏浚与河槽拓宽的进行所需考虑的因子越来越多,故疏浚进行前应尽量考量整个河道的河性以及施工后可能引致的变动,使能维持预期的效果,并避免造成负面效应。本文主要以涧河为研究对象,利用NETSTARS拟似二维水理输砂模式,探讨河道疏浚后的水理与输砂演变趋势等相关课题。

Dredging is usually used for excessive deposition of the channel, and broadening is used for eliminating water pass. With the space-time evolution, more factors should be considered in channel dredging and widening. Before dredging, the river property of the whole channel should be considered first and what the construction may lead to should be also considered, so as to maintain the expected results, and to avoid the negative effect. Taking Jianhe River as the research object, this article uses NETSTARS to simulate two-dimensional hydraulic sand transportation mode, and discusses the water physical property and sand transportation trend after river dredging.