Pit Construction
The pit is to be prepared for pipe jacking and manhole construction. Pit shall be constructed in a proper sequence of steps to ensure the quality and safety of workers and adjacent structures. The proposed location of pit has to be properly trim flat for working platform and the position has to set out by competent surveyor. Pit can only be constructed at a location which is free from buried services/structure. Any services located within the pit shall be relocated.
An open caisson that is used in soft grounds or high water tables, where open trench excavations are impractical, can also be used to install deep manholes, reception / launch pits for micro tunnelling, pipe jacking and other operations.
Caisson Construction work
Manhole Construction work