7 Major Difficulties in Levelling (With Diagram) |Surveying
The following difficulties are commonly met with while levelling: 1. Levelling Across a Hill or a Hollow 2. Levelling Up-Hill or Down-Hill 3. Staff Very Near the Instrument 4. When the Staff-Station is too Low or too High 5. Levelling across a Pond or a Lake 6. Levelling across a River 7. Levelling across Solid Obstruction like a Wall. Difficulty [...]