生态砖护岸结构在河流治理中的应用研究

Study on Application of Ecological Brick Revetment Structure in River Management

随着人们对河道景观、自然环境和水文化要求的提高,生态治理技术在河道整治工程的应用更加广泛。根据河道水系生态修复工程,利用现场试验及室内物理模型试验,从抗冲刷能力和景观效果的角度总结生态砖护岸的优势。采用有压管道产生高速水流以创建护岸结构冲刷物理模型,试验表明复合生态砖护岸结构的抗冲性良好,形成的冲刷坑≤5.2cm,生态砖结构冲刷浸泡12h后未发生完全破坏。通过对河道水系现场试验表明,复合生态砖护岸结构能够明显提升植被根系密度及成活率,3个月后,护岸结构水泥砖部分能够被狗牙根草完全符合,其景观效果良好。

With the improvement of people's requirements for the natural environment of river landscape and water culture,ecological management technology has been widely used in river channel regulation projects.According to the ecological restoration project of river system,the advantages of ecological brick bank revetment are summarized from the perspective of anti-erosion ability and landscape effect by field test and indoor physical model test.The high speed water flow generated by the pressurized pipeline was used to create the physical scouring model of the revetment structure.The test showed that the composite ecological brick revetment structure had good anti-scouring performance,and the scour pit formed was no more than 5.2cm.The ecological brick structure was not completely damaged after being immersed in the scouring for 12h.The field tests on the river system show that the compound ecological brick revetment structure can significantly improve the vegetation root density and survival rate.After 3 months,the cement brick part of the revetment structure can be completely matched by the root grass,and its landscape effect is good.