The anti-aircraft appliance is installed under all fixed stamps. During the construction of Kopov, the walls of the console type are laid, which allow you to quickly and reliably install the device and automatic centering it.
Before the observation, the following measures should be performed:
develop a scheme for the location of vizier brands and the method of fixing them to formwork, as well as determine the necessary openings in the ceilings of the copra;
provide lighting of brands inside the structure, as well as the place of fixing the installation points of the anti-aircraft industry;
Determine the sequence of work with a zenit probe at the point, the calculation methodology on the brand scales;
ensure the connection between the observer and his assistant on the formwork, as well as the safe position of the observer, for example, by the installation of a metal mesh above the anti-aircraft industry;
establish what observations should be carried out by construction personnel, and the procedure for their control by the marketing service.
Observations of the position of sliding formwork are recommended to be carried out in the following order.
The assistant observer, located on the formwork, provides lighting brands (electricity or naturally) and sequentially opens the openings in the suspended forests under each visir brand.
The observer sets the anti-aircraft type to the operating position at the point under the open opening, then by the rotation of the visual pipe of the device sets the horizontally visible thread of the eyepiece parallel to the lines of one of the shirts of the visitor, it takes the counts at two positions of the horizontal circle, which differ by 180 °, and records them In the magazine of measurements.
In the same way, counts on another scale of the brand are taken. Having finished measurements at one point, they move on to the next, pre -planned. Supporting observations at each point, the observer reports this to an assistant located on the suspended forests, who closes the used opening and opens the next.
With each observation of the formwork, the height of the operating floor is necessarily determined, for which it is recommended to attach to the reinforcement in the corners, control rails with decimeter divisions, which are observed by the movement of the formwork. As the formwork lifts the rail, it is necessary to build up.
In addition, every 10 m of the shift of the formwork, the markeser must determine the high -altitude marks of the working floor from the rapper concrete in the lower part of the copra, a metal compared roulette with the accuracy of the reference up to a millimeter.