The article highlights the peculiarities of determining the strength of the flat wagon fitting stops, taking into account the viscous and elastic-viscous interaction with the fittings of the tank container. Mathematical modelling was performed to determine the dynamic load of the flat wagon with tank containers in the case of shunting collision taking into account elastic, viscous and elastic-viscous interaction between fittings and fitting stops. It is established that the elastic interaction does not compensate for the dynamic loads acting on the flat wagon in the case of shunting collision. Accelerations acting on the flat wagon with the tank containers do not exceed the normative values taking into account movement of the fittings relative to the fitting stops by viscous and elastic-viscous interaction. It was established that the strength of the bearing structure of the flat wagon and fitting stops is provided by viscous or elastic-viscous connections between fittings and fitting stops, taking into account the possible movements of tank containers in relation to the frame. The conducted researches will provide efficiency increase of combined transportations and develop recommendations for designing modern constructions of railway rolling stock.

Very effective method of solving a problem of realisetion a building production, is offered. It includes oversystem communications, covers the problems of material’s delivery, transporting terms, volumes of making products, it’s distribution among uses and saling prises (prises of sale).

The analysis of existing methods of management by the parks of building machines is conducted, it is marked that all of them have their advantages and demerits. Therefore in the real management system it is necessary to apply not someone of them but a few incorporated into the system.

In the paper the materials of research of technology and organization of mounting the drilling-and-filling piles in water-saturated soils are presented.

To determine the ratio of flange friction, the article proposes an experimental and analytical method, combining the analytical value for the rolling friction ratio and its experimental value obtained according to the law of oscillations damping in dry friction.The final experimental & analytical formula contains six parameters and permits to judge about their influence on the value of flange pressure upon the rail and to take the measures for its reduction.