FIELD: construction.
SUBSTANCE: in the method to manufacture prestressed prefabricated reinforced concrete roads, including laying of reinforced concrete slabs prestressed in transverse direction relative to a road, joined ends of which are made one with a groove and the other one with a ledge onto an earth, sand or other base, fixation of these slabs along the road bed by means of their pressing, differing by the fact that the slabs are manufactured as reinforced concrete and prestressed with high-strength reinforcement in two orthogonal directions, along and across the road, and plates from vacuumised benzo- and oil-resistant rubber or another elastic material are installed into joints between the slabs with thickness from 5 to 70 mm and width equal to thickness of the slab and length equal to the length of the slab, and pressing of the slabs along the road is carried out with two special hydraulic jacks with a total force from 0.5 to 1.5 of total rated design pressing with high-strength reinforcement arranged along the road in the slab, besides, hydraulic jacks are installed in side slots arranged in the ends of the slabs. At the same time hydraulic jacks in process of slabs pressing are fixed in threaded bushings previously installed in the central part of the slots, moreover, after pressing of slabs with jacks a fixing metal screw-clamp is installed, which is fixed to slabs via threaded bushings previously installed in the extreme part of the slab slots, after installation of screw clamps at both sides of the slabs, pressure is released from the jacks and transferred to the place of connection with the following slab, and the surplus of elastic material pushed out from the transverse joints of the road is cut with a knife or a cutter, then nets are installed into slots with a screw clamp, and slots are gunited with concrete, and in case it is necessary to install a border stone, the latter is fixed with bolts via a central threaded bushing, and cavities in slots are injected with a cement-sand mortar. Besides, disassembly or repair of the solid surface is carried in a reverse order, and a new plate from elastic material is installed into the joint between the slabs.
EFFECT: reduced costs.
3 dwg
