(how to) Procedures for Excavation and backfilling works including Antitermite Treatment

Procedures for Excavation and backfilling works including Antitermite Treatment

Pre Excavation Procedures:


Setting out:

1) It shall be ensured that drawing indicating setting out points is available on site. Also necessary surveying equipment as mentioned shall be available on site in good operational condition.

2) Setting out work shall be carried out using Theodolite or whole station Instrument. 
Setting out of centre lines shall be done correctly as per drawing and masonry or concrete pillars shall be erected at suitable points to serve as reference bench marks (or setting of wooden railings around periphery of the building).
 Levels of reference bench marks shall be with respect to a Permanent Bench Mark, which shall be made to draw excavation profile. 
All marking on these shall be painted red and well preserved. 

3) All excavation levels shall be determined from the reference bench marks and got approved from Site Engineer before actual excavation work starts.

4) Site Engineer shall check and approve in writing the entire setting out profile, before which no excavation work shall commence.