The paper discusses the principles and conditions of supplies allocation on the construction site. It covers the functional dependences of the logistic support in the course of construction of large-panel buildings. The paper presents the required conditions for the stable functioning of material supply system, making it possible to ensure a rhythmic and uninterrupted process of the facility construction. Various types of production supplies of material resources are offered at the construction site for large-panel housing construction, which is based on a sufficient volume of structures and products taking into account the possible occurrence of risks of performing the planned amount of work. It is concerned with the comparative analysis of the main ways of determining the need for material and technical resources.

Keywords: construction, construction and assembly work, large-panel buildings, logistical support, material resource inventory

Determination of the main hydraulic parameters of overgrown channel beds using the methods of various authors Shezi, Altshul, etc., in relation to the conditions of irrigation systems of the Kabardino-Balkarian Republic. A plot of the velocity distribution in conditions of overgrown riverbeds is constructed. The distribution of velocities in overgrown riverbeds strongly depends on the flexibility of the stems.

Keywords: speed, resistance, flexibility, irrigation, channel

In the article, the authors try to identify the importance of forensic construction and technical expertise of trade pavilions, kiosks, etc. The importance of such examinations for the owners of these buildings is also noted, especially if the buildings are non-stationary commercial objects (NTO). In addition, the procedure for examining such a judicial or pre-trial construction and technical expertise is being considered. And the requirements for the expert opinion itself are noted.

Keywords: judicial construction and technical expertise, expertise, trade pavilions, construction and technical expertise, construction, capital structure, NTO, non-stationary trade facilities

The article provides an analysis of the occupational morbidity of welders, the nomenclature and levels of hazardous and harmful production factors at the workplaces of welders, and also formulates measures for the prevention of occupational diseases and industrial injuries of welders.

Keywords: occupational diseases, dangerous and harmful production factors, occupational risk, special assessment of working conditions

When designing vibration machines and calculating their dynamic models, great difficulties are encountered. The presence of contacts of the working body with the medium significantly complicates the determination of the dynamic and kinematic parameters of the oscillatory system. This is due to the fact that different layers of the vibrated medium have different vibration amplitudes, therefore it is necessary to introduce the concept of "mass attachment", which is, as it were, rigidly attached to the working body and vibrates with its amplitude. It is difficult to determine the coefficients of elastic and dissipative resistance of the elements of the oscillatory system. The authors propose an experimental-theoretical method for determining all parameters of an oscillatory two-mass system with two degrees of freedom, which can be easily extended to more complex linear dynamical systems.

Keywords: vibration machines, vibrating system, road-building machines, free vibrations, phase-frequency response

Traditional analytical methods for determining critical forces lead to difficult solutions of transcendental equations, therefore they are not universal and are ineffective for rods with complex design schemes. The proposed numerical-graphical method for determining critical forces, can be easily adapted to complex non-classical problems.

Keywords: Euler problem, rod, critical force, stability, differential equations, boundary conditions, finite difference method, eigenvalues

The activities of enterprises in the field of pipeline transportation of oil and oil products are often associated with emergency situations. Rescue teams need to cover significant distances in off-road conditions. The speed of the unit's response depends on the design of devices that increase the cross-country ability of vehicles. The paper analyzes various devices for increasing the vehicle's cross-country ability and proposes its own solution.

Keywords: rescue teams, oil trunk pipeline, cross-country device, automotive equipment

In this article, the object of study is the drying of plant products in a combined drying apparatus using infrared radiation, convection and reduced pressure. The process of drying products in the food industry is still relevant today in connection with the optimization of efficiency and reduction of energy consumption. In the presented experimental study, the following products are used: apples, bell peppers, bananas. The slice thickness varies from 5 to 10 mm. Observations show that, with optimal parameters and drying modes, the possibility of using the described drying installation is fully expedient.

Keywords: drying, infrared radiation, reduced pressure, convection, dried food, pilot plant