When the foundation pit (trough) is dug to the base elevation, it shall be checked and accepted with the construction unit, survey unit, design unit, supervision unit, quality supervision department, etc.
When digging the base pit (groove) to the base elevation, it shall be accepted with the construction unit, survey unit, design unit, supervision unit, quality supervision department, etc.
When the foundation pit (groove) is excavated to the base elevation, it shall be checked and accepted with the construction unit, survey unit, design unit, supervision unit and quality supervision department.<br>