Evaluation of the Influence of Reliability of Construction Process Elements on the Performance of the Leading Machine in Earthmoving and Transport Equipment Sets

Objective: to identify the impact of construction process component reliability on the performance of the lead machine in earthmoving equipment sets. Using the most popular and modern construction machine models as examples, to qualitatively and quantitatively evaluate the impact of reliability on their performance. Methods: each construction process is examined and evaluated from the perspective of large-scale systems theory. For ease of calculation, all technological processes under study are presented as structural models. Academician A. N. Kolmogorov’s method for solving large-scale systems is used as the mathematical framework. Results: structural models of technological processes for the development and transportation of soil by earthmoving and transport vehicles are constructed. Based on structural models, the calculation of the performance of the considered sets of equipment is carried out, taking into account reliability. Based on the calculation results, graphical dependencies are constructed that clearly show the nature of the reliability effect on the performance of equipment sets. The performance is calculated taking into account the reliability for the scraper of the brand most in demand among builders, working in kits, for a range of range from 0.5 km to 2 km. Practical significance: the results of the study can be useful to the heads of transport construction organizations for the competent selection of sets of earthmoving and transport equipment, for understanding the possible performance of the leading machine in the set, as well as the actual construction time.