This invention relates to the field of farmland
irrigation engineering technology, and discloses a prefabricated channel made from retired wind
turbine blades and its construction method. The prefabricated channel consists of a rectangular channel body composed of a base plate unit and side plate units, innovatively employing a double connection structure. A rectangular mortise at the top of the side of the base plate unit connects to a rectangular tenon at the bottom of the side plate unit via sliding
assembly, forming a non-detachable connection. The base plate unit has L-shaped stepped grooves and inverted L-shaped stepped grooves at both ends, while the side plate units have square socket plugs and square socket slots at both ends, enabling the splicing of
adjacent channel bodies. A high-density
polyethylene geomembrane impermeable layer and an impermeable lining concrete layer are sequentially laid on the inner surface of the channel body to form a composite impermeable structure. This invention effectively solves the problem of
resource utilization of
solid waste from retired wind
turbine blades, transforming it into a channel component with practical value. This not only reduces channel construction costs and significantly improves construction efficiency (achieving rapid
assembly and eliminating the need for on-site pouring), but also ensures the integrity and stability of the channel structure, resulting in significant environmental and
economic benefits.