【摘要】 生态堆岛可解决消化入湖口泥沙淤积，具有投资少、占地小、无二次污染、泥沙处理率高等优点。通过研究生态堆岛平面布置、堆岛面积、水域面积、岛屿驳岸坡比、除沙效果等，确定生态堆岛的关键技术因子。研究表明：生态堆岛平面布置各岛长轴与主水流方向交角不宜大于60°，且堆岛区域的水域面积应大于总面积的50%；生态堆岛的驳岸边坡系数与堆岛的占地面积、水域面积、填筑方量有关，经计算分析确定生态堆岛土质驳岸边坡系数为2.5；经过监测与检验：堆岛区域植被恢复显著、水环境质量较好，生态堆岛技术可为湖泊湿地修复、科学除沙提供参考。更多还原

【Abstract】 The ecological island has the advantages of less investment, small land occupation, no secondary pollution, high sediment treatment rate, etc. The key technical factors of ecological island stacking are determined by studying the layout plan,island stacking area, water area, island revetment slope ratio, sand removal effect, etc. The study shows that the intersection angle between the long axis of each island and the main flow direction in the ecological island layout should not be greater than60°, and the water area of the island area should be greater than 50% of the total area; The revetment slope coefficient of the ecological island is related to the occupied area, water area and filling volume of the island. Through calculation and analysis, it is determined that the soil revetment slope coefficient of the ecological island is 2.5; Through monitoring and inspection, the vegetation restoration in the island stacking area is significant, and the water environment quality is good. The ecological island stacking technology can provide reference for lake wetland restoration and scientific sand removal.更多还原