Mass Earth Excavation
EXCAVATION is the preliminary activity of the construction project. It starts from the pits for the building foundations and continues up to the handing over of the project.
Scope of the work:
- Setting out of corner benchmarks.
- Survey for ground levels.
- Survey for top levels.
- Excavation to approved depth.
- Dressing of loose soil.
- Making up to cut off level.
- Constructing dewatering wells and interconnecting trenches.
QUALITY CHECKS FOR EXCAVATION
- Recording initial ground level and check size of bottom.
- Disposal of unsuitable material for filling.
- Stacking suitable material for backfilling to avoid double handling.
- Dressing bottom and sides of pits as per drawing with respect to the centerline
- Necessary safety measures observed.
Backfilling
- Recording initial ground level.
- Sample is approved for backfilling.
- Necessary marking/ reference points are established for final level of backfilling.
- Back filling is being carried out in layers (15cm to 20cm).
- Required watering, compaction is done.
- Required density is achieved.
