Top-down construction-type assembly construction method for paved road surface

A top-down construction type assembly construction method for paved road surface, comprising:

• step I, using a top-down method to manufacture prefabricating slabs, and providing threaded sleeves configured to vertically penetrate the prefabricating slabs, wherein the threaded sleeves are evenly arranged in the prefabricating slabs;
• and
• step II, mounting the prefabricating slabs on a lower bearing plate which is clean, placing the prefabricating slabs in one step according to a mounting sequence of a mounting section, then performing a tuning on a position and an altitude of the prefabricating slabs, and after the tuning is completed, performing a grouting construction, and finally forming the paved road surface which is complete;
• wherein a step of the tuning on the position and the altitude of the prefabricating slabs comprises:
• an altitude coarse tuning, a position fine tuning, and an altitude fine tuning;
• and
• in the altitude coarse tuning, screwing leveling bolts into the threaded sleeves of each of the prefabricating slabs respectively, a lower end of each of the leveling bolts contacts a concrete surface of the lower bearing plate, and lifting the prefabricating slabs by screwing the leveling bolts until an altitude of a slab surface of the prefabricating slabs is in accordance with an altitude of a string line of the prefabricating slabs;
• and
• in the position fine tuning, lifting the prefabricating slabs a certain distance through a lifting equipment, manually pushing the prefabricating slabs to a desired distance, and slowly lowering the prefabricating slabs;
• and
• in the altitude fine tuning, measuring altitudes at four corner points of the prefabricating slabs one by one through an electronic level, after measuring all points and calculating adjustment values, planning an adjustment sequence, evenly adjusting the altitudes, and screwing the leveling bolts according to the sequence;
• and
• in step I, manufacturing the prefabricating slabs on a super flat prefabricating pedestal, firstly mounting and fixing a side mold, and inverting bricks on the super flat prefabricating pedestal inside the side mold, arranging the bricks on the super flat prefabricating pedestal which has already laid a demolding barrier layer, and filling joints of the bricks through caulking strips;
• mounting first reserving hole molds after completing a reverse laying of the bricks, then laying a layer of polymer dry mix mortar with a thickness of 8 mm˜10 mm on a back of the bricks;
• and after a final set of the polymer dry mix mortar, mounting a first reinforcing mesh sheet, second reserving hole molds, a second reinforcing mesh sheet and pre-embedding steel slabs, fixing the threaded sleeves on the pre-embedding steel slabs respectively, and opening a grouting hole on each of the pre-embedding steel slabs;
• after completing above steps, pouring a concrete to finally form one complete piece of the prefabricating slabs;
• after a concrete strength reaches 75% of a design strength, cooperating with a crane to flip the side mold at a sand pile, checking an evenness and a specification dimension of a brick surface of the prefabricating slabs, and promptly taking out the caulking strips from qualified prefabricating slabs and pointing the joints, and then numbering and storing the prefabricating slabs;
• and
• wherein the second reserving hole molds and the first reserving hole molds are mounted at positions corresponding to the threaded sleeves, when pouring the concrete inside the side mold, and insides of the second reserving hole molds and the first reserving hole molds are not poured, and bricks at positions corresponding to the first reserving hole molds are taken out, and the positions corresponding to the first reserving hole molds serve as leveling and grouting reserving holes.