With the increasing frequency of global floods and extreme weather events, urban flood control, riverbank protection, and heavy-duty flood defense have become crucial components of infrastructure safety. Compared to traditional sandbags or temporary protective measures, modern engineering is increasingly adopting more efficient and robust flood barrier systems to build reliable flood defenses for communities, transportation routes, and critical infrastructure.A bastion flood barrier refers to a barrier system used to block floods, mitigate the impact of water flow, and protect critical areas.It typically consists of a combination of high-strength metal mesh and filler materials, and can be deployed quickly to form a robust protective wall. Its core structure and technological principles are widely applied in disaster prevention engineering worldwide.