This utility model covers a wide-span built-in longitudinal concrete lining machine. By placing the paving and conveying mechanism inside the machine frame, the design achieves a compact layout for long-span canal sections and supports continuous longitudinal concrete placement with consistent thickness and slope alignment.
Patent publication: CN 209798678 U. Application filed 11 January 2019; granted 17 December 2019. Inventors: Yang Yan, Gao Jiantao and Wang Chao.