1. Roads and Railways: culverts, passages, small bridges, tunnels, culvert and tunnel overhaul, temporary access roads and seepage wells; 2. Municipal and Construction: common ditch, optical cable protection, drainage ditch, tower crane cofferdam, vertical pile shell; 3. Coal Mine: mineral transmission pipeline, personnel and mining machinery channel, shaft; 4. Civil: power plant flue, grain storage warehouse, fermentation tank, wind power generation; Military: military access road, air defense passage and evacuation passage.