植绿挡墙在叉仔河治理工程中的应用及设计优化

为了赋予技术成熟、安全可靠、应用广泛的传统混凝土挡墙生态特性,将其直立的墙面适当放缓后退,浇筑成阶梯形状,在阶梯边沿上设置矮墙,形成生态槽,充填种植土,栽培适宜的景观植物,即为植绿型挡墙。结合植绿型挡墙在叉仔河治理中的应用,优化了挡墙设计,临水侧墙面综合坡比为1∶0.8,生态槽净宽0.65~0.85 m,槽深0.4 m,槽壁厚0.15 m,相邻槽距1.0 m,同时,墙背调整为仰斜式,坡比为1∶0.25,墙趾处设格宾护脚防冲。植绿型挡墙用于河道治理中,既经久耐用,又可形成生态美景,还有利于不幸落水者攀爬上岸自救。

The Application and Design Optimization of Planting Retaining Wall in Chazai River Regulation Project

In order to endow the traditional concrete retaining wall with mature technology,safety and reliability,and wide application with ecological characteristics,the vertical wall surface is slowed down and retreated appropriately,poured into a stepped shape,and a low wall is arranged on the edge of the stepped to form an ecological groove,fill with planting soil,and suitable landscape plants are cultivated.Combined with the application of plant ecological retaining wall in the treatment of Chazi River,the design of retaining wall is optimized.The comprehensive slope ratio of the wall surface on the water side is 1∶0.8,the clear width of ecological trough is 0.65~0.85 m,the depth of trough is 0.4 m,the thickness of trough wall is 0.15 m,and the distance between adjacent troughs is 1.0 mm.At the same time,the back of the wall is adjusted to be tilted upward,the slope ratio is 1∶0.25,and the toe of the wall is equipped with gabion foot guards to prevent scour.The ecological retaining wall is used in river course management,which is durable,can form ecological beauty,and is also beneficial for unfortunate people who fall into the water to climb ashore and save themselves.