The project site is from Hutouyan to Daping Jiukengzi, Futuguan Park, Yuzhong District, Chongqing. Scope of work: Fotuguan Daping section tunnel (452.9 m), the rest of Daping mucking branch road (99.29 m). Including earthwork excavation, initial support, secondary lining, waterproof and drainage, open cut tunnel and portal works; Passage, air duct, entrance and exit; Reserved foundation pit stone for track beam