运用海绵城市理念设计南昌市杨家湖水渠工程

Design of Yangjiahu Canal Project in Nanchang with Sponge City Concept

南昌市杨家湖水渠是以雨水下渗、滞留、调蓄及超标暴雨排泄等多功能为一体的水渠。通过设置前置塘、卵石笼侧向拦水和渗透、高渗透性的下渗层、盲沟、高低起伏的渠底,带格栅进出水口的管道连接等方式,实现区域雨水的"渗、蓄、滞、净、用、排",提升区域的排涝能力;同时净化初期雨水。经实践运行,效果良好。

Yangjiahu Canal in Nanchang is a multi-functional canal with rainwater infiltration, detention, storage and excessive storm discharge. By setting up the front pond, pebble cage lateral water interception & infiltration, high permeability infiltration layer, blind ditch, high & low fluctuating canal bottom, and pipeline connection with grid inlet & outlet, the regional rainwater seepage, storage, stagnation, purification, utilization & drainage can be realized, and the drainage capacity of the region can be improved;at the same time, the initial rainwater can be purified. Practical operation shows that the effect is good.