深圳前海水廊道水体交换物理模型试验研究

发布时间：2018-05-29 19:23

本文选题：水体交换 + 物理模型　；参考：《人民长江》2016年05期

【摘要】：深圳前海水廊道的建设目的是将前海规划区打造成一个亲水城区,使前海水系变成一个便于调度的整体水系。但是水廊道内水体交换弱,且不断有来自陆域的污染物汇入,大铲湾码头的建设使前海成为一个半封闭式港池,更进一步减弱了水体交换能力。为研究前海湾最佳水环境保护方案,通过现场资料分析与水质物理模型对深圳前海水廊道水动力条件、水体污染物浓度变化进行了研究。研究结果表明,水廊道水容量有限、流动性差、水交换或污染稀释能力比前海的水体差,而环状水廊道水体交换能力较指状廊道而言又更差,靠自身稀释降解污染物非常困难,通过注水方案可加快水廊道内水体交换扩散,对环状水廊道水质改善尤其明显。
[Abstract]:The purpose of the construction of Shenzhen Qianhai water corridor is to build the Qianhai planning area into a hydrophilic urban area, so that the Qianhai water system can be transformed into a whole water system which is convenient for dispatching. However, the water exchange in the waterway is weak, and the pollutants from the land are confluence continuously. The construction of the Dashuwan wharf makes the front sea become a semi-enclosed harbor pool, which further weakens the water exchange capacity. In order to study the optimal water environment protection scheme of the former Bay, the hydrodynamic conditions and the concentration changes of pollutants in Shenzhen Qianhai water corridor were studied by field data analysis and water quality physical model. The results show that the capacity of water corridor is limited, the fluidity is poor, the water exchange or pollution dilution capacity is worse than that of the front sea water, and the water exchange capacity of the annular water corridor is worse than that of the finger corridor, so it is very difficult to dilute and degrade pollutants by itself. Water exchange and diffusion in water corridor can be accelerated by water injection scheme, especially the improvement of water quality in annular water corridor.
【作者单位】：南京水利科学研究院水文水资源及水利工程科学国家重点实验室;
【基金】：国家自然科学基金资助项目(41306081)
【分类号】：X55

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