Post Excavation Procedures

Post Excavation Procedures:

 Antitermite Treatment to sides of excavated pits:

1) Antitermite treatment solution shall be prepared on site by mixing solution mentioned.

2) Antitermite treatment in foundation shall start after site Engineer gives his permission to do so. Treatment shall be complete with treatment of soil underneath the foundation as well as to the sides of the excavated pits to form a total barrier between foundation and excavated pits.

precaution to be taken blasting operation

 Following precaution shall be taken blasting operation: 

a) Area within minimum distance of 150m from the region to be blasted shall be evacuated. Boundaries of the area to be blasted shall be guarded by minimum 4 persons who in turn shall wave red flags on the boundary to prevent entry of personnel during blasting operation. Signal shall be given before and after blasting.

b) It shall be ensure that all charges have exploded by counting number of charges to fired and actual number of shots heard.

c) Misfires, if any, shall be brought to the notice of Consultant / Project Manager and necessary remedial measure shall be taken as per Consultant’s advice.

Important Points During Excavation Procedure

During Excavation Procedures:

1) The excavation shall be done to correct lines, dimensions and levels as per drawing. Adequate side slopes shall be maintained during excavation of loose soil to prevent soil from sides of excavated pits from falling back into the pits.

2) Wherever required, proper shoring and strutting shall be provided to maintain and prevent sides of excavations from collapsing.

3) No heavy equipment shall be allowed within 6m from edge of excavation or within a distance equal to depth of excavation, whichever is less.

(PART 3) EXCAVATION & BACKFILLING - Blasting

inserting gelatine

pressure drill rod

high performance gelatine

air pressure drill

D) Blasting operation consumables:


a) Various blasting operation consumables shall be either or combination of following: 1) Gunpowder
2) Dynamite