The surveying and mapping scale is1:5000 ~1:10000, which can be larger according to needs.

Macro-topography: the location and boundary of rivers, basins, terraces, dissolved depressions, surface karst lakes and underground karst lakes; Micro-topography: gullies, funnels, sinkholes, water inlets, water outlets, holes, collapse columns, collapse pits, karst springs, etc.

2. Surveying and mapping of engineering geological structure characteristics

The layered mapping of loose deposits is supplemented by the formation age according to the engineering geological classification, and the layered mapping of bedrock is supplemented by the formation age of soluble rocks and insoluble rocks (water-resisting rocks); Draw important faults by tracing method, count joints, cracks, dissolved holes and dissolved gaps, and submit lithologic engineering geological map.

3. Hydrogeological mapping

According to relevant specifications, submit Quaternary hydrogeology map, bedrock hydrogeology map, groundwater isoline map and karst water runoff map.

4. Surveying and mapping of human engineering activities

Surface: buildings, roads, bridges, etc. Underground works: tunnels, subways, gas pipelines, water supply and drainage pipelines, civil air defense projects, underground shopping malls, caves, etc.

5. Surveying and mapping routes

Except for the important faults, the recourse method is adopted, and the others are the crossing method.