Remote control of construction equipment makes it possible to increase the efficiency of the workflow: reduce the construction time, adhere to a clear schedule, keeping up with the deadlines set and approved by the project, allows you to "see" the production process from different sides, eliminating almost all possible problems. Also, the full or partial transfer of authority to computer technologies guarantees continuous work in the presence of various climatic and social factors that slow down or stop the schedule. This article examines the experience of implementing remote control of construction equipment at oil production facilities. A comparative analysis of the automated and standard workflow is carried out on the example of KAMAZ trucks. The prospects for the introduction of remote control technology for construction equipment at fields in Russia in order to increase the efficiency of construction production are considered.
Keywords: construction machinery, automated equipment, drones, 5G, unmanned vehicle, unmanned trucks
The article discusses the methodology for conducting building control using an information model of building structures and a cloud of points obtained using ground-based laser scanning technology. The proposed technique makes it possible to increase the efficiency of identifying geometric deviations in the course of monitoring the construction of industrial, civil and infrastructure facilities.
Keywords: digital technologies, BIM model, information model, point cloud, terrestrial laser scanning, construction control
The article discusses the basic principles of information modeling of building systems that underlie BIM technology, and emphasizes the importance of their interaction, since the correctness and efficiency of the BIM process depends on this. The traditional and some basic curves characteristic of the life cycle of goods (products), which have found application in marketing theory, is given. It is noted that each stage of the life cycle of a construction object requires in-depth study and detailed study, since the analysis of scientific publications and the current regulatory document on information modeling revealed their contradiction to each other in some positions.
Keywords: information modeling, principles, life cycle curves, capital construction object, normative document.
When clearing territories for the construction and / or subsequent maintenance of such infrastructure facilities as construction sites, airfield territories, right-of-way for roads and railways, heat supply routes, and so on, work is often carried out to remove growing undesirable tree and shrub vegetation, At the same time, the problem of assessing the quality of the performance of these works is relevant. The authors of the article consider the issues of mathematical modeling for assessing the quality and effectiveness of the work performed to clear the territories of a number of the above infrastructure facilities, give the boundary values of the criteria for assessing the quality of the measures taken to remove vegetation, and formulate a conclusion about the advantages of the developed mathematical model.
Keywords: territory, unwanted vegetation, removal, efficiency, quality, criteria, evaluation
The article shows the procedure for structuring work on the creation or repair of linear objects on the example of highways. It is proposed to carry out the effective interconnection of works on the basis of improving the theory of complex flows. The formation of object flows is proposed, for this the entire length of a linear object is divided into separate sections, for which object schedules are developed. Object schedules are linked into a single complex flow. The results of calculations for combining object schedules according to various principles and their variant analysis to select the best variant are presented.
Keywords: linear objects , construction works, object schedules , single flow , work structuring, variant analysis
Winter roads are winter roads that are temporary in nature and their construction takes place directly from the snow cover. Complex construction of roads with the use of optimizations created for temporary and economic efficiency, improving the quality of the final result, will increase the effectiveness of decisions made during the construction of winter roads. Improving the efficiency of detailed factors in the construction of winter roads, which affect the result of further work of calendar construction, will allow for faster delivery of materials, personnel and equipment to hard-to-reach objects, within the conditions of the Far North. Winter roads are the most profitable solutions in tundra conditions, since the method of using air transport to deliver materials, equipment and workers is economically unprofitable and less safe. Therefore, the timely construction of winter roads is so important for remote regions.
Keywords: highway, road, construction, winter construction, winter truck, "Polar elephant", road construction, seasonal construction, optimization, efficiency
The possibility of using artificial neural networks to assess the current characteristics of pavements and their potential application in the development of road maintenance strategies is considered. The results of the models showed the convergence between the estimated values of the pavement condition and the actual values at all stages of training. The results show that public road authorities can use the developed models to determine the optimal approach to road maintenance and determine the most effective measures to restore their capacity and operational condition.
Keywords: artificial neural networks, backpropagation algorithm, falling weight deflectometer, pavement maintenance, pavement management system
The transition of the construction industry to a higher level of competitiveness is due to the implementation and application of digital technologies. Traditional methods of processing incoming information are not effective for managing so much information that modern construction organizations produce. The article discusses the use of digital twins technology in the implementation of investment and construction projects. The purpose of this article is to identify the positive and negative aspects of the introduction of this technology in the activities of design and construction organizations. The main problems in the implementation of information technologies in construction organizations are analyzed. The main differences between information modeling technology and digital twins technology are presented. The advantages for the participants of investment and construction activities from the introduction of digital twins in the implementation of projects are given.
Keywords: BIM technology, digital twin, investment and construction project, digitalization
On the example of the construction complex of the cities of the Urals, the main types of construction defects of cast-in-situ structures of civil buildings, as well as the most characteristic causes of their occurrence, are revealed. It is established that the causes of the majority of construction defects in cast-in-situ structures of civil buildings have an organizational and technological nature. As a result of the expert assessment carried out by the method of a priori ranking of factors affecting organizational and technological solutions, a group of factors was determined, the management of which will allow the contractor to improve the quality of construction work on the construction of a cast-in-situ skeleton of a civil building. It is recommended to plan quality management measures for the construction of cast-in-situ structures of civil buildings taking into account these factors. These factors should also be taken into account in organizational and technological design, especially when developing processing slates.
Keywords: civil construction, cast-in-situ housing construction, construction defect, organizational and technological solutions, quality of construction products, quality management
In the past few years, such objects have begun to be taken outside the city limits and rebuilt in new, undeveloped territories. And on the vacated territory, a new development begins with the intensive development of underground space. The strategic innovative approach to the implementation of projects for the development of the modern city released by the industrial territory is an urgent answer to the question of a completely new understanding of the comfortable environment, in which everything is involved: zoning of the development territory, laying new roads (city streets), underground structures and communications, transport accessibility, environmental friendliness of construction. Without understanding that the problem of forming a living space is complex, in the end, comfortable conditions of human existence will not be obtained. Various modern green building standards are based on this.
Keywords: redevelopment, green standard, BREEAM, industrial territories, industrial facilities, reconstruction, renovation, complex development of the territory, certificate
The article is a review, devoted to the instruments used for the experimental study of the stress-strain state of the soil base, and methods of their use. The authors considered two types of mesdoses, analyzed the possible advantages of their different designs. General cases of operation and loss of bearing capacity of shallow foundations are described.
Keywords: Foundation, construction, shallow foundation, soil mechanics, building structures, soil stress measuring device
Natural disasters can cause serious damage to cities and entire regions, which makes it important to improve the efficiency of planning repair and construction work when restoring built-up areas. The article discusses the organizational and managerial aspects of the restoration of territories affected by natural disasters, which is the basis for effective planning and implementation of projects for the reconstruction and restoration of settlements.
Keywords: natural disasters, emergency situation, urban area, advanced planning, infrastructure
3D printing (3DP) is considered an innovation that promotes automation in civil engineering and offers advantages in design, sustainability and efficiency. With its potential to automate, eliminate formwork, reduce construction waste and improve geometric accuracy, 3DP has promising applications in the building construction and civil engineering. 3DP is an effort to put digital manufacturing into practice, enabling a direct transition from building design / modeling (BIM) to 3DP. This article provides various aspects of application in construction, materials and their compositions, as well as examples of the use of 3DP: buildings, structures, polymer sleepers, etc.
Keywords: 3D technologies in civil engineering and construction, materials
Studies of building control issues are one of the most topical for industries and human life. The construction industry is one of those. The problem of safe and high-quality unique buildings is closely related to quality construction control.The article discusses the main stages of the documents regulating construction control in the implementation of unique objects, their systematization is given. The schemes of interaction of the main construction participants at the stage of construction and installation works with the obligatory involvement of experts in scientific and technical support of construction for the purpose of further study are presented.
Keywords: construction control, unique buildings, scientific and technical support of construction, construction quality, Camunda BPM
Reconstruction of industrial enterprises is a complex, time-consuming and expensive process. When implementing it, a number of significant problems arise that must be taken into account at the design stage. This will allow us to find approaches to solving the problems of reconstruction of industrial production carried out under various conditions and significantly reduce the costs of construction work. Reconstruction also has three main directions, covering certain tasks and differing in the scale of reconstruction activities. One of these areas is revitalization. When there is a need to solve problems focused on the socio-cultural life of the population on the territory of the existing urban development, revitalization becomes the optimal and modern way of solving. The result of the reconstruction should be an increase in production capacity and profitability of enterprises, a reduction in the negative impact on the environment, as well as an increase in social comfort in residential areas of cities.
Keywords: reconstruction, technical support, re-profiling, revitalization, production area, production capacity, radical reconstruction
When performing work on the inspection of residential buildings for deconservation, there are often problems associated with determining the composition of work, as well as problems related to the organization of work. This article discusses the scope of work on the survey of residential buildings for deconservation, as well as presents work in the form of schedules that allow you to predict the timing of work, as well as coordinate the exit of specialists to the facility.
Keywords: inspection of buildings, conservation of the object, organization of work, schedule of work, construction in progress, scope of work
The article provides an overview of construction technologies for the construction of multi-storey residential buildings, taking into account the speed of construction and the quality of structures. A summary table of various types of construction is presented, advantages and disadvantages are identified.
Keywords: construction production, optimization, constructive solution, method of construction of buildings, block, panel, large-block, monolithic frame, monolithic, modular, comparison, analysis, advantages, disadvantages
Since the volume of restoration works of cultural heritage objects has been increasing recently, cases of problems related to the survey of these objects are not uncommon.this article discusses the main problems that arise during the survey of buildings and structures related to cultural heritage objects and suggests possible ways to solve them.
Keywords: inspection of buildings, object of cultural heritage, organization of work, non-destructive methods for determining the strength of concrete
As part of the proper maintenance of a number of infrastructure facilities (right-of-way for roads and railways, protected zones of power lines, gas pipeline routes, etc.), work is being carried out on their territory to remove growing unwanted vegetation. The article discusses the features of determining the values of capital investments for the formation of a system of machines, mechanisms and used mechanized and manual equipment for cleaning these territories from unwanted vegetation, shows an example of their calculation using specific brands of machines, mechanisms and equipment used in production, formulates a conclusion about the feasibility of introducing of the considered method into the production process of enterprises and organizations responsible for the maintenance of the indicated territories of linear infrastructure facilities.
Keywords: territory, unwanted vegetation, removal, mechanization, equipment, definition, capital investment
The article discusses methods and models for evaluating options for design solutions for the installation of special-purpose structures when solving problems of construction and technical expertise, and also describes a catalog of design solutions for the installation of special structures, including information on cost, resource, time characteristics and possible technological methods, mechanization tools used materials, the need for transport, the necessary quantitative and qualitative composition of brigades and links of workers.
Keywords: construction and technical expertise; design solutions; installation of special facilities; construction expert; multi-criteria assessment; organizational and technological solutions
Engineering and geological conditions of the reconstructed territories are important town-regulating factors in the development of Master Plans and Rules of land use and development. They should be taken into account both at the pre-investment stage and at the stages of development of preliminary and working projects of construction projects. Data on the degree of exposure to dangerous engineering and geological processes will allow calculating the stress-strain state of the foundation depending on changes in the physical and mechanical properties of the soil, which means making the most effective organizational and technological decisions for the reconstruction of urban development.
Keywords: engineering and geological surveys, dense urban development, reconstructed territories, geoinformation bases, digital substructure, geological risks
To date, the construction of high-rise buildings is the highest priority in construction. One of the problems in the construction of high-rise buildings is wind loads, which have a significant impact on horizontal movements. The article provides a calculation in the LIRA CAD software package of a high-rise building for wind loads in order to determine the optimal locations of outrigger floors and the type of outrigger floor. The system of outrigger floors serves to reduce the displacement of floors from the effects of wind loads.
Keywords: high-rise building, outrigger, stiffness core, aerodynamics, software package, modeling, wind loads
In modern construction, the issue of compliance with environmental standards is very acute. Nowadays, buildings not only protect people from the external environment, but also protect people's health and exist in harmony with the environment. Therefore, the integration of "Green Standards" will bring construction to a new level.
Keywords: ecological construction, WELL, "Green standards"
The analysis of the complex sustainable development of the Leninsky district, the city of Rostov-on-Don is carried out. Criteria were defined on the basis of which a decision can be made on the integrated sustainable development of the territory of the city of Rostov-on-Don.
Keywords: integrated sustainable development of the territory, Federal law, Urban Planning Code, draft law, local self-government bodies, territory analysis, land plots, construction, boundaries of the area, reconstruction, Rostov-on-Don
The study evaluated the effect of the spring position in the panel on the amount of force required for vertical pushing of the columns. The results show that the farther the spring is from the hinge, the less pushing force is required to lift the column. In this method, the column was connected to the panel by hinged hinges at the factory, which allows lifting elements by crane as a single group during the installation of the frame structure on the construction site. In addition, a spring is installed on the panel at a certain distance, helping to push out the column and secure it. In this article, a threaded connection of precast reinforced concrete columns is proposed, which can be used to connect elements of fully assembled buildings and structures. The contact-screw connection of precast reinforced concrete consists of an upper and lower column, both have a cylindrical steel external thread in the end section connected. The strength of the screw column connection is determined by ensuring the transmission of axial loads and torque in the joints, ensuring the destruction caused by cutting and thread confusion that may occur between the connected columns. By means of the necessary calculations for the screw connection of columns made of precast reinforced concrete the corresponding rigidity and strength were confirmed. The new connections will contribute to the development of construction, its energy efficiency and acceleration of the installation process. These are effective approaches to reducing effort, time, and labor and energy costs.
Keywords: prefabricated buildings, passive assembly, column connection, screw connection, energy efficiency of installation, mounting spring, hinge loop