SU661054A1 - Prefabricated paving slab - Google Patents

Description

one

The invention relates to airfield and road construction and relates to the construction of airfield panels and road precast coatings.

A known plate of an airfield and road precast cover, made with uninterrupted grooves in one direction of constant depth 1.

The disadvantage of this design is the reduction of the carrying capacity of the plate due to the reduction of the geometric characteristics of the vertical sections along the grooves compared with other sections.

The closest technical solution to the invention is a precast slab, comprising a body, on the upper face of which a joint of the same depth is performed, the floor of a constant groove (2J.

The disadvantage of such plates is also a reduction in the carrying capacity of the plate. Change the geometric characteristics of the vertical sections along the grooves, as compared to other sections.

The purpose of the invention is to increase the capacity of the slab.

The goal is achieved by the fact that in a known precast slab, including

In order to form the body, on the upper face of which communicating grooves of constant depth are made, grooves are placed in plan along the sides of the system forming cells of niecTHgons with the size of the side exceeding twice the width of the groove, and the end sections of the canoes can be made u.UHB).

FIG. 1 shows a stove in ml. in fig. 2 — node I of FIG. one; in fig. 3 - section A-.A FIG. 2

The assembly plate has 1 and upper face 1, designed to interact with pneumatic wheels, continuous grooves 2, pa. power: 1 | 1e in plan along the sides of a system of cells of hexagons forming a system, CTopOHjDi of which are located

5 at an angle of 120 and have a size greater than double the 1 1 1 niiipnny grooves.

Ilpii of such an outline and nzayimy location of the canoes in the p.shne, beat vertical, 1 section of the plate crosses the grooves

0 and its geometric characteristics. sugary for non-nonschweg plate abilities are determined by considering the total thickness of the plate. The cross section K; i iaiu; i may be rectangular, trap / ball, semicircular, or different, and the length of the straight grooves between the branches of the grooves may be the same or different on different parts of the plate.

Various materials, such as concretes, plastics or others, are applicable for making the slab. In the manufacture of the proposed plate from formable materials, it is sufficient to attach a profiling element to the flat form-shaped pallet, which ensures the implementation of grooves with the specifically required outlines.

When making a slab of brittle material, the ends of the grooves can be made smoothly widened. This eliminates the possibility of chipping the plate material at the end sections of the grooves and increases the safety of plate operation.

Claims (2)

1. A prefab slab, comprising a body, on the upper face of which are connected communicating constant depth grooves, characterized in that, in order to increase the plate carrying capacity, the grooves are placed in plan along the sides forming a system of hexagons with a side size exceeding twice the width grooves. 2. The plate according to claim 1, characterized in that, in order to increase the safety of operation of the plate, the end sections of the grooves are made smoothly widened. Sources of information taken into account in the examination 1.Albom "Prefabricated, pre-tensioned plates for airfield pavements, series 3,506-3, CITS GOSSTROY USSR, Moscow, 1973, p. 6-8. 2. US patent number 3891340, cl. E 01 C 5/00, 1975. Fig-3