土壤改良离不开大量渠道和水工建筑物的建设。渠道及其与水工建筑物衔接地段的水流速度通常都超过土层的允许流速。为了防止渠道可能受到水流的破坏,需要进行大规模的渠道加固工作。常用抛石、混凝土板或其它护面方法进行加固,需要耗费大量材料和劳力、工程费用也很昂贵.铺草皮及种草护坡成本很高,难以推广使用。根据参考文献 Soil improvement is inseparable from the construction of a large number of channels and hydraulic structures. Channels and their connections to hydraulic structures often flow faster than the allowable velocity of the soil. In order to prevent the channel from being damaged by water flow, large-scale channel reinforcement is needed. Common riprap, concrete slab or other face protection methods require a lot of material and labor, and the construction cost is also very high. The cost of sod and grass protection is very high and difficult to popularize. According to the references