▎ 摘　　要

NOVELTY - An anti-seepage structure of sewage pipeline comprises pipelines (1) spliced with each other and two adjacent sections of the pipeline interface is arranged outside an anti-seepage belt (4). The joint of two adjacent pipelines is filled with a waterproof mortar sealing layer (5). The adjacent two sections of the pipeline are fixedly connected by the waterproof mortar sealing layer and further comprises a composite waterproof sleeve (2) arranged in the joint of two adjacent pipelines. The composite waterproof sleeve comprises a metal wire net frame (21) and a waterproof coating layer coated outside the metal wire net frame. The waterproof coating comprises 30-35 pts. wt. polyurethane prepolymer, 10-15 pts. wt. nano graphene, 8-10 pts. wt. PTFE, 2-3 pts. wt. gum arabic gum, 8-12 pts. wt. diatomite, 1-3 pts. wt. wood cellulose, and 2-3 pts. wt. binder. USE - Anti-seepage structure of sewage pipeline. ADVANTAGE - The pipeline has improved anti-seepage performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for construction of the anti-seepage structure of sewage pipeline. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the anti-seepage structure of sewage pipeline Pipeline (1) Composite waterproof sleeve (2) Anti-seepage belt (4) Waterproof mortar sealing layer (5) Metal wire net rack (21)