武汉市重点河湖洲滩民垸防洪能力评估及运用管理建议

Assessment of Flood Control Capacity and Operation Management Suggestions for Riverine Island, Beach and Dyke of Key Rivers and Lakes in Wuhan City

摘要:

为评估武汉市重点河湖洲滩民垸现状防洪能力，在对62个民垸开展详细调查与测量的基础上，选取四个典型民垸为样本，综合考虑洲滩民垸所在河湖的重要性、水文情势、防洪要求、民垸规模、人口数量、社会经济状况等因素，进行民垸分类与防洪标准确定，评估防洪能力后提出治理措施及行蓄洪运用方案。结果表明，62个民垸中第一类民垸1个，第二类民垸30个，第三类民垸23个，第四类民垸8个，其中堤防达标的25个，未达标的37个。按照各类民垸分类施策，提出相应的管理方式和发展方向，确保流域防洪安全。

Abstract:

To evaluate the current flood control capacity of riverine island, beach and dyke in key rivers and lakes of Wuhan City, on the basis of conducting detailed surveys and measurements of 62 riverine islands, beaches and dykes, four typical riverine islands, beaches and dykes are selected as samples. The factors such as the significance of the river or lake where the riverine islands, beaches and dykes are located, the hydrological conditions, the flood control requirements, the scale of the riverine islands, beaches and dykes, the population size, and the social and economic conditions are comprehensively considered to determine the classification and flood control standard of riverine islands, beaches and dykes. After assessing the flood control capacity, the governance measures and the flood storage discharge schemes are proposed. The results show that among the 62 riverine islands, beaches and dykes, there is 1 first-class one, 30 second-class ones, 23 third-class ones, and 8 fourth-class ones. Among them, 25 ones meet the standards, while 37 ones do not. According to the classification of various types of riverine islands, beaches and dykes, the corresponding management methods and development directions are proposed to ensure the flood control safety of the basin.