| 摘要 |
FIELD: road building, particularly to form roadbed paving. ^ SUBSTANCE: paving panel comprises separate members connected one to another so that joints between the members define polygonal line. Panel comprises bar members adjoining one another by side surfaces and having upper surfaces, which form common horizontal flat panel surface. Air-tight film is adhered to the upper surface to provide panel rigidity enough for panel engagement with the use of air pressure, panel laying and connection to adjacent panels. Side panel surfaces are provided with alternating extensions and depressions. Method of panel laying involves installing vacuum chamber on panel surface with the use of lifting mechanism so that lower wall of vacuum chamber is fixed and upper wall thereof rests upon support; releasing lower chamber wall and fixing upper wall thereof; creating vacuum in chamber by moving fixed upper wall in upward direction; performing panel engagement with the use of vacuum; moving the panel; installing the panel on bed; joining side surfaces of adjacent panels by means of extensions and depressions; releasing upper chamber wall and lowering thereof by chamber gravity; increasing pressure in vacuum chamber; fixing lower base of vacuum chamber and removing the chamber from laid panel. Vacuum chamber for above method realization comprises sealed body having corrugated elastic walls, which permit chamber volume change and are connected to upper chamber wall and to chamber base located in lower chamber part in air-tight manner. The walls are provided with distance through frames arranged one over another. The body also has outlet valve installed in upper wall orifice. Chamber base is made as perforated plate. Upper base side has support, which is brought into contact with upper wall of the chamber installed in collapsed state when vacuum is created in the chamber. Delimiters are located on lower base side and provide air space between the base and panel to be moved. Base dimensions correspond to that of paving panel. ^ EFFECT: increased strength and quality of ready paving, reduced labor inputs and increased structural simplicity. ^ 9 cl, 15 dwg |
