EXCAVATION - Veer Buildhouse

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Sunday, September 30, 2018

EXCAVATION



EXCAVATION

         The work involves the excavation of the trench  to the required level, compacting the   sub-graded and preparing sand bedding for the foundation.
   Procedure of Works :--
  1. Care shall be taken during mechanized excavation using excavator and JCB’s especially in the first 6M depth where most of the services are located.
  2. Upon identifying warning tape of any service, mechanical excavation shall be stopped and manual excavation shall be done.
  3. In areas where the trench is close to the buildings, depending on the type of foundation of the building, shoring shall be done by planking, shuttering or trench sheets.
  4. In other areas it will be stopped open excavation with battened slopes.
  5. Dewatering system shall continue to run until backfilling is completed up to the level of natural water table.
  6. Bottom of the trench shall be cleaned, free of loose material; rock projections and the surface will be leveled and moistened uniformly before commencing compaction.
  7.  Leveled Bottom shall be compacted as per specifications.
  8. Where necessary, temporary pedestrian bridges over trenches and vehicle access bridges shall be erected to provide access to labour.

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