Concrete ground construction leveling can use m ruler to copy and measure the concrete leveling elevation point. After checking and checking, the concrete pouring starts. After the concrete paving is completed, the construction personnel of Sanming will simultaneously use a m ruler to level the concrete surface along the "track" composed of angle iron. The concrete that protrudes from the ground level is scraped off, and the sunken part is replenished by another person, and then the three people who level it will level it again. Implementation 6: After the angle iron is removed and the concrete is poured and leveled, the angle iron is removed when the concrete begins to set, and the concrete surface of the diagonal iron part is leveled again along the formed concrete surface with a ruler. Colleagues wash angle irons for turnaround use. Use the aluminum alloy square pass to level the concrete along the angle steel surface, at least once. For the first time, use the m-long aluminum alloy square pass to level the concrete. Add as you go, remove the angle steel when the concrete is close to the initial setting and can basically ride people on it, and bend the supporting steel bars beyond the finish surface of the concrete and bury them in the concrete.

The groove at the location where the angle steel is placed shall be filled with concrete in time and reused. The m-long aluminum alloy square pass is used for precision leveling. During the precision leveling process, small errors cannot be used in places where concrete cannot be added: cement dry sand and ash leveling, after leveling, use the pulping machine to grind the pulp as a whole, and the pulping is completed. Use aluminum alloy square pass to catch up. After the initial setting of the concrete, the polishing machine is used to polish a large area. Because the machine cannot be in place, the edges and corners are manually calendered in advance. During the second leveling process, the surveyor must set up a spirit level to detect the flatness error in the whole process. In order to ensure the flatness, one point must be measured every m or so, and the excess part should be dealt with in time during the measurement process. The finished product protection of concrete zero slabs shall be managed in a divisional and responsible manner, and whoever does the work shall be responsible. Supervisors shall be set up to track and inspect the finished product protection in the operation area every day, and rectification shall be ordered in a timely manner if any violations are found.