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Thursday, June 24, 2021

EXCAVATION - QUALITY CONTROL CHECKLIST

Ensure that an excavation permit is obtained if required.

Check and verify that the latest drawing is approved for excavation.

Ensure that the ground levels are agreed upon at suitable intervals with the consultant/client.

Check that a temporary dewatering system is provided to lower and maintain the groundwater table to a depth of at least 1 meter below the excavation depth at all times, and is maintained (if required).

Check for any existing underground utility services through electrical scanning and conduct a full service survey before the start of trial excavation (if required).

Ensure that any interruption to existing utilities is permitted by the consultant in writing at least 48 hours before the start of the work.

Ensure that the dimensions and depths of the excavation are completed as required to allow for safe and proper construction work.

Ensure that an engineer’s inspection is conducted when the specified levels/limits of excavation are reached.

Ensure that the excavation reaches firm soil and that the bottom of the excavation is not disturbed.

Check that approval from the engineer is obtained for the disposal of excavated material or for its reuse in backfilling.

Ensure that the excavation is completed as per specifications and drawings, and that the area is left clean and tidy.

 


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