从河床演变看东平水道航道整治和河床采沙效应

Analyses of channel regulation of the Dongping Waterway and effects of sand-borrow on riverbed

针对东平水道受径、潮流共同作用和河床宽浅的特点,对航道采用了两级整治高程,取得了良好的整治效果。在分析河床演变与整治工程、河床采沙关系的基础上指出,整治工程与大规模河床采沙,起到了整治与疏浚相结合的作用。但在进一步保护利用东平水道航道资源过程中,需合理引导和调控河床采沙活动。

The Dongping Waterway with a wide and shallow riverbed is dominated by fluvial and tidal currents. According to its features, regulation works with two regulating stages were carried out with satisfactory effects. Based on the analysis of the relationship between the fluvial process and regulation works and sand-borrow on riverbed, it can be seen that the regulation works and heavy sand-borrow have made combined effects of regulation and dredging, and that the sand-borrow activity should be reasonably managed and adjusted.