This patent protects a single piece of equipment that prepares canal slopes before concrete lining by cutting the profile, loosening compacted soil and leveling the surface. The integrated process reduces the number of passes and helps achieve the design slope and thickness required for durable canal lining.

Application filed 21 August 2012; granted 27 March 2013. Inventors: Wang Chao, Wan Zhenhai, Luo Yongtang and Xu Jinzhou.