抛石护脚工程水环境保护研究——以长江铜陵河段为例

Water Environment Protection in Riprap Engineering:Case Study on Tongling City Reach of the Yangtze River

以长江铜陵河段为例,研究长江铜陵河段综合治理工程施工期和运行期水环境的变化,采用水质模型预测了抛石护脚施工造成悬浮物的影响范围和程度,分析其对下游饮用水水源保护区的影响。结果表明,水下抛石造成悬浮物浓度增加,影响范围长度约300~500 m,宽度约10~20 m。根据研究成果,提出了针对性的水环境保护对策措施。研究成果可为类似河道治理工程水环境影响研究提供参考。

We investigated changes in the water environment during the construction and operation phases of comprehensive river management project in Tongling section of the Yangtze River.We employed a water quality model to predict the scope and intensity of suspended solids impact resulted from underwater riprap construction.Furthermore,we analyzed its influence on downstream drinking water source protection area.Result shows that the affected area of increased suspended solids concentration caused by underwater riprap spans approximately 300 to 500 meters in length and 10 to 20 meters in width.Based on these findings,we propose some targeted measures for water environment protection to offer references for the study of water environmental impacts of similar river regulation projects.