Prepare the construction plan
Prepare the construction plan, submit the commencement report and submit it to the supervisor for approval.
technical disclosure
Be familiar with construction drawings and organize technical disclosure.
Covering construction
Overlay facilities.
Material sampling inspection test
Materials shall be sampled and submitted for testing, and the test results shall be submitted to the supervisor for approval.
Subgrade treatment
Subgrade cleaning, shaping, cleaning, watering and rolling; Scroll. Then the subgrade is comprehensively tested, especially the compactness, deflection value and elevation of subgrade. Seriously deal with the place that does not meet the design requirements until it meets the requirements.
Re-measure subgrade
Re-measure the width, height, longitudinal slope, transverse slope and superelevation transverse slope of subgrade.
Subgrade surface treatment
Deal with the place where there are loose soft bullets on the subgrade surface, especially soft bullets, dig out the soft bullets and backfill them with lime soil or gravel soil.
Prevent water accumulation in road grooves
In the trough section, drainage ditches or gravel blind ditches should be alternately excavated at regular intervals (5 ~ 10m) on both sides of the shoulder to prevent water accumulation in the road trough.