Calculating the Groundwork Volume for the Construction of Logging Roads
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2022, Vol 16, Issue 4
Abstract
Organizational and engineering models provide a formalized description of the construction process, including a list of operations, their sequence, description of the relationship between the operations, and the features of the work technology. Network models have the most complete mathematical description. However, a number of authors in their works point to serious shortcomings inherent in the network modeling of construction flow. The network model allows displaying accurately enough only the relationship of specialized traffic flows when the object is divided into sections equal in size to interchangeable grips. Such schedules are quite effective in planning and operational management of road works in a short planning period (decade or month). The adequacy of the real construction representation is violated when the network model is enlarged for long-term planning of the flow. The currently developed so-called generalized network models achieve process combination and continuity by introducing links between the operations, characterized by temporal parameters assuming any values, including negative values. However, the complexity of the mathematical description of these models still prevents their use in solving optimization problems. The research aims at developing a mathematical model and an algorithm for calculating the operational control of the groundwork volume during the construction of logging roads. A model of a complex object flow is proposed, where the flow operation time has a discrete nature. This condition is realized in the model by dividing the planned operation period of a complex flow into equal time intervals – scheduling intervals. The below described model of complex road construction flow can be presented on the basis of the scheduling task classification scheme and the analysis of existing economic and mathematical models and methods. The scheduling model developed for the purpose of determining the optimal groundwork for the road construction elements is a deterministic (at the 1st stage), discrete in time, engineering model with variable speeds of operations.
Authors and Affiliations
Maksim V. Matsnev, Natalia G. Ponomareva, Oleg N. Tveritnev, Petr V. Tikhomirov, Dmitry M. Levushkin, Andrei N. Briukhovetskii
Keywords
Related Articles
- EP ID EP706819
- DOI 10.37482/0536-1036-2022-4-156-172
- Views 128
- Downloads 0
Seed Germination of Coniferous Introduced Species in the Environment of Central Kazakhstan with Various Stratification and Inclusion of Needle Litter into Substrate
This study observes the issues of the possible usage of wastes from timber industry in the sprouting of seeds of coniferous plants in the arid climate of Central Kazakhstan. Such treatment of coniferous seeds is easily i...
Application of Cable-Railways for Timber Skidding
The article presents constraining factors of the use of traditional approaches for timber skidding in the winter logging period in the North-West Federal District of the Russian Federation. Based on the study of scientif...
Growth Indices of Siberian Pine of Different Geographical Origin Grafted on a Scots Pine Rootstock
Forests dominated by Siberian pine (Pinus sibirica Du Tour) occupy about 40 mln ha in Russia. They fulfill soil- and water-protective roles, produce oxygen, and are the source of valuable nuts, wood, and other materials....
The Conservation of Plant Species Diversity in Forest Management in the Key Biotopes of the Vologda Region
A reduction in the number of biological species can cause a loss of the integrity of the biosphere and its ability to maintain the most important characteristics of the natural environment. Therefore, scientific research...
Algorithm and Measurement of Forest Cover Area Change in the Khachmaz Region of Azerbaijan by Satellite Monitoring
The article presents the results of long-term observations of the forest cover state in the Khachmaz region of Azerbaijan. Both the results of Earth’s remote sensing and the data of earlier observations carried out by fi...