The ways to control the construction quality of construction projects are pre-control, process control and post-control respectively.

A, precontrol includes:

1, investigation and analysis of construction conditions;

2, the blue prints.the design of construction and design disclosure;

3. Preparation and review of construction organization design documents;

4, engineering survey positioning and elevation datum control;

5. Selection and qualification examination of construction subcontractors;

6, materials, equipment and parts procurement quality control;

7. Configuration and performance control of construction machinery, equipment and tools.

Second, the control includes:

1, construction technology review;

2, construction survey management;

3. Witness sampling management;

4, technical approval and design changes;

5, concealed engineering acceptance;

6. Others (including quality control approaches and methods formed in long-term construction management practice)

Third, after-the-fact control:

1, finished product protection;

2, construction quality inspection and acceptance.