护坡结构在Mirsarai海岸防护工程中的应用

Application of slope protection structure in coastal protection engineering of Mirsarai

传统的混凝土或生态型护坡结构均不能兼顾海岸防护对结构防浪消能、耐久性、生态性的需求。针对孟加拉Mirsarai海岸防护工程特点,并经方案比选,采用混凝土块体与生态组合型护坡结构,对其技术质量重难点、典型施工问题、基槽镇脚棱体和坡面块体的防浪稳定性、生态护坡与结构排水进行分析。结果表明,基槽与坡面块体稳定质量满足防浪要求,能够有效抵御汛期海浪冲击;植被生态型护坡利用根系加固土层,控制土粒及下部材料冲刷流失,并兼具生态与景观作用。

The traditional concrete or ecological slope protection structures cannot satisfy the needs of coastal protection for structural anti-wave,energy dissipation,durability and ecological requirements.Aiming at the characteristics of coastal protection engineering in Mirsarai,Bangladesh,we adopt the concrete block and ecological slope protection structure type through the comparison and selection,and analyze the technical and quality difficulties,problems in typical construction,the stability of the base trough prisms,slope blocks,ecological slope protection and structural drainage.The results show that the stable mass of the foundation and the slope block satisfies the requirements for anti-wave,and can effectively withstand the impact of sea waves during the flood season.Vegetation ecological slope protection uses the root system to reinforce the soil layer,controls the erosion of soil particles and lower materials,and plays a role of ecology and landscape.