digging the pit foundation a hole with excavator. earthwork in excavation and backfilling of soil upto required depth is required

backhoe beams civil concrete construction contractor deep demolition development dig digger diggers ditch drainage drill earth earthworks economic economy engineering equipment excavating excavation excavator foundation ground groundworks heavy hydraulic industrial industry job levelling loader machine machinery moving piling preparation reinforced road rock sand scoop sewage shovel site sky trench vehicle work works