常熟市南部河网原型调水试验与模拟分析

Field Prototype Experiment of Water Diversion for River Network in South of Changshu City

近年来,常熟市南部河网受工业化和人类活动的威胁,水体污染严重。为改善水环境质量,基于常熟市现有的河道输水能力及区域水环境状态,通过望虞河向长江引水,观测主要河道的分流情况。同时根据试验数据,建立符合常熟市南部河网地区的水量水质数学模型,分析不同引水方案对片区水环境的改善效果。结果表明,通过水系结构连通规则,滞水区有所减少,区域内流量分配得到优化,水体循环有所改善。

Recent years,water pollution in the south of river network in Changshu City is seriously threatened by potential industrialization and human activities.In order to improve the quality of water environment,based on the current water delivery capacity and the status of regional water environment in Changshu City,the flow distribution of the main river was observed by diversion water from the Yangtse River to Wangyu River.Then the field prototype experiment was conducted to establish the mathematical model of water quality and water yield.Finally,the effect of different diversion schemes on the improvement of regional water environment was analyzed.The results show that the zone of stagnant water is reduced,and the regional discharge distribution is optimized as well as the cycle of water body is improved.