A methodology for the development of a system of typical environmentally and economically effective road pavement designs is proposed, which allows to optimize the process of designing pavements using asphalt granulate for the design of overhaul of road pavements.redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.
Keywords: cold deep in-place recycling, pavement, standard design, road, design, construction, asphalt granulate
To determine the optimal set of machines for the production of earthworks in urban conditions, it is necessary to make a multi-criteria selection of the set among possible combinations of machines, with each parameter having a certain level of influence. To determine the weight of the parameters, it was decided to conduct an expert survey. The minimum number of experts was determined, a survey was conducted, after which the data was processed, the level of consistency of the expert opinion was obtained, and the level of influence of each parameter on the choice of sets of machines was revealed.
Keywords: parameters that affect the choice of machine sets, expert survey, Kendall concordance coefficient, earthworks, Pearson coefficient
The issues of construction and practical application of 4D BIM models relate to the current issues of the development of organizational and technological design of construction at the international level. The purpose of the work is to describe the information model of the construction process on the example of brickwork. To achieve this goal, the following tasks are solved: the structure of the source infor-mation necessary to describe the changes in the construction process in space and time is developed; analytical dependencies describing the changes in the construc-tion process in space at each moment of time are obtained; the procedure for evaluating the effectiveness of organizational and technological decisions made by the designer and contractor when performing bricklaying is given. The methods of algebra and analytical geometry were used in the research. As the initial informa-tion, the data provided in the national classifier of construction resources and the register of estimated reserves are used. Analytical models are formed as a result of applying a systematic approach and methods of mathematical logic. Conclusions: 1. To build an information model of a separate construction process, it is advisable to use the existing base of estimated standards in construction. 2. It is recom-mended to apply the well-known equations describing the change in duration from the volume of labor and material and technical resources. 3. Evaluation of effi-ciency using the information model involves a comparison of at least 13 variants of the organization of work on the device of the brick masonry.
Keywords: construction process, construction duration, construction information model, labor productivity, machine productivity, leading construction machine, machine useful power utilization factor, labor resources, material and technical resources
This article discusses various options for carrying out construction and installation works during the technical re-equipment of energy-processing equipment in the building of the Main Building of the existing CHPP. The methods of installation of large-sized equipment to the design mark are studied by three different methods with a description of the features of the work and the characteristics that affect the cost of the work. The enlarged schedule of construction and installation works on technical re-equipment of the boiler drum is given.
Keywords: thermal power plant, technical re-equipment, construction and installation works, technological equipment, large-sized equipment
This article discusses the importance of timely monitoring of the technical condition of structures and buildings in general in the process of preserving cultural heritage objects. And also, using the example of the Rostov region, the article raises one of the existing organizational and technical problems of preserving cultural heritage objects – the lack of the ability to conduct timely monitoring of the technical condition of historically significant objects in the region, and the urgent need to create local organizations to monitor the technical condition of objects and prevent violations of their operation.
Keywords: cultural heritage object, monitoring, inspection, technical condition, complex technical studies, violations, operation, historical value, restoration, repair, preservation
All the objects of renovation are located in the city of Moscow, all belong to residential construction. Each of the renovation projects is subject to state expertise with special conditions and requirements set by the MFR. The renovation program is planned until 2032, started in 2017. Despite the fact that the program has been running for 4 years, few people know the specifics of passing the examination and the subtleties of the program itself. The Moscow Renovation Fund has its own requirements and conditions for the construction organization project, which must be taken into account by the designer and expert. Currently, passing the Moscow state examination of the objects of the renovation program takes more time than private projects. In order to understand why this happens, it is necessary to analyze the construction organization project to identify its weaknesses. By understanding where the most comments are received by the construction organization project manager, you can prevent these comments in advance by paying more attention to these points. To do this, in the article, the construction organization project was divided into 11 groups, for which we will identify in which part of the project the project organization receives the most comments. In order to identify for what reason and because of what most often the construction organization project receives a negative conclusion, it is necessary to divide the comments themselves into types. In the course of the analysis, in this article we will deduce the weaknesses of construction organization projects in the conditions of renovation.
Keywords: moscow State expertise, construction organization project, renovation, probability distribution, construction program
The article discusses the opportunities that arise when using data mining methods in construction. A numerical experiment is carried out to create an algorithm for making design decisions in the production of zero-cycle works, namely, when installing the enclosing structures of the pit edge. Comparison of the data obtained in the Deductor Studio software product with those actually used in the construction of a residential building is performed.
Keywords: construction, earthworks, information technology, decision tree, design decision making, data analysis, machine learning, Data Mining, Deductor.
A solution to the problem of insufficient transport accessibility of the airport complex "Platov" in the form of a modern transport interchange complex is proposed. Five time models of spatial development of the transport and transfer complex within the airport complex have been developed. Step-by-step modeling from a compact transport hub to a large complex of facilities (bus station, bus station with a small logistics center, complex station, transport and public center and public center with transport and transfer function) stimulates the natural and soft development of the advanced development zone (aeropolis) on the basis of the airport complex "Platov". The analysis of the model range of the time development of the transport and transfer complex will allow to create an object that meets the principles of sustainable architecture.
Keywords: architecture, shaping, functioning, spatial development, transport and transfer complex, transport and transfer hub, transport infrastructure, aeropolis, model, transformation
The implementation of any construction project in the Far North conditions becomes successful with its rational design. The main factors in the design both in Russia and in foreign mills in the Far North are given. The article reveals the theoretical aspects of the contracting process and interaction with design institutes in the design of oil and gas production facilities. The main aspects of the framework agreement and effective use in commercial practice of such countries as the USA, Great Britain, France are shown. The main problems, as well as tools for effective work with counterparties, are given, as well as examples of analysis of the market of contractors, on the basis of which conclusions are drawn on interaction with a potential counterparty.
Keywords: oil and gas industry, construction, design and survey work, contractor, counterparty, tender, selection, oil and gas production facilities, SWOT analysis
Purpose: The purpose of the study is to identify the duration of the implementation and linkage between procedures and the development of a basic organizational and management model for their passage by the technical customer (developer) at the stages of pre-design and design preparation of the facility for construction. Carrying out this study is relevant, since today there is a single regulation for a technical customer (developer), describing the sequence and the possibility of paralleling and the duration of functions during the passage of procedures at the stages under consideration. Methods: The conducted research is based on the analysis of scientific and technical literature, regulatory and technical, regulatory and legal documents, the method of expert assessments is also applied. Results: The processing of the arrays of data from the questionnaire survey of experts made it possible to determine the intervals of the duration of the procedure by the technical customer (developer) and to link them with each other in time at the stages under study. As a result, a basic organizational and managerial model was developed for the passage of procedures by a technical customer (developer) at the stages of pre-design and design preparation of an object for construction. Conclusions: The use of the basic organizational and management model by organizations performing the functions of a technical customer (developer) will simplify the planning and management of processes when going through the procedures at the stages of pre-design and design preparation of an object for construction.
Keywords: technical customer, developer, pre-project and project preparation, organizational and management model
Geotechnical input to the design, construction, and operations of pipelines in permafrost may differ significantly from that for pipelines in temperate terrain. The general remoteness and terrain fragility of permafrost regions are key issues that challenge the geotechnical input. Specific geotechnical issues that necessitate input include pipeline routing, slope stability, thaw settlement and frost heave, ditching, buoyancy control, upheaval buckling. and others. It is necessary to develop and implement new technological solutions, taking into account long-term forecasts of the temperature conditions of the soil bases, which should be able to prevent or compensate for the negative impact of heat for all pipelines laid in permafrost conditions.
Keywords: gas and oil pipeline, permafrost, seasonally frozen soil, innovative technologies geosell, geosynthetic, modeling
With the help of the software package of finitely elementary analysis, a methodology was modeled with subsequent analysis of the performance of the gauge coatings made of reinforced concrete slabs on the basis of earthworks of variable stiffness.
Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production
Practice shows that today the main trend in the development of the modern construction industry is associated with the expansion of the use of cast-in-situ reinforced concrete. In many cases, cast-in-situ reinforced concrete has better construction and technological properties (compared to precast concrete, metal) and allows you to freely implement a variety of architectural solutions with economic benefits. In turn, modern advances in the technology of concrete work would not be possible without the appropriate technical base. This article analyzes the use of construction machines in the construction of a cast-in-situ reinforced concrete skeleton of civil buildings on the example of objects realized in Yekaterinburg. A study was conducted, according to the results of which the manufacturers of construction equipment were identified, as well as the technologies prevailing in monolithic housing construction in the city. According to the terms and cost of construction, which are the defining elements of the construction sector, one indicator was allocated for a technical and economic comparison, the results of which determined the need to develop a comprehensive feasibility study of the use of construction machines in the construction of cast-in-situ load-bearing reinforced concrete structures, as well as the development of methods for selecting machines, which in the future will reduce the construction time of the cast-in-situ skeleton of the building, increase the payback of monolithic civil housing construction and the efficiency of construction from cast-in-situ reinforced concrete.
Keywords: civiс building, cast-in-situ reinforced concrete,construction machine, load-bearing structure, technical and economic comparison, concrete mix, building skeleton, construction machine, construction, civil engineering
The paper presents the results of a study of the road network of the Republic of Karelia, identifies the most significant problems of the road sector, assesses the mutual transport accessibility and transport links of all regional centers of the republic.
Keywords: road network, road density, population size, length of roads, road facilities, factor analysis, transport accessibility, operational condition, transport links
The work is aimed at improving the algorithm of automated formation of solutions for the production of construction works based on the combinatorial approach. The essence of the approach is to form all feasible solutions for the production of construction works, taking into account the specified resources and constraints, and choosing the best option according to the specified criteria. At the same time, at some stages of the generation of altenatives, it is advisable to eliminate obviously losing options, in particular, it is proposed to take into account the losses from downtime of workers and construction machines formed due to some difference in the total productivity of workers and construction machines when forming the composition of resources for performing mechanized construction work. The proposed algorithm assumes the choice of the composition of resources for performing a mechanized technological process with minimal losses from idle resources.
Keywords: organizational and technological design, simulation model, algorithm, logical and mathematical model, combinatorial approach, multivariate design, automated control system in construction
In connection with new trends in design and construction, customers and expertise began to introduce new requirements for engineering and geological surveys. The article discusses the main indicators of acceptance of works on engineering and geological surveys for compliance with the customer's technical specifications, the main technical indicators and results of control and acceptance of works that meet the requirements of the joint venture and receive a positive expert opinion. It is indicated what characteristics of deformation characteristics, in the presence of specific soils, must be obtained by static and field tests. Shown is the sampling of soil to control the homogeneity and conditions of the soil, after testing. Based on the test results, determine the deformation moduli of clay soils in a water-saturated state. It is concluded that modern standards in the field of engineering and geological surveys will undergo changes taking into account the requirements of global trends, implying a more detailed detailing of soil models suitable for a particular situation, which will undoubtedly entail new requirements for equipping laboratories and and to the professional skills of engineers.
Keywords: Acceptance of work, engineering and geological surveys, customer's technical task, main technical indicators, control and acceptance of work
Renovation refers to the process of improvement, reconstruction, restoration without destroying the integrity of the structure. For data collection, civil buildings located on the territory of Moscow are accepted and pass the Moscow State Examination. According to the long-term experience of passing the relevant instances, it was revealed that the Renovation Fund and the state expertise have comments on the same requirements, which encourages us to consider this stage, systematizing the comments received in order to highlight those aspects that the designer needs to pay more attention to.
Keywords: renovation, weaknesses, stages of passing the examination, systematization of comments, recommendations for reducing the time frame
The theme of the work is dedicated to the problem of quality assessment of constructing of a linear part of the main pipeline in the extreme north. Constructing of objects in permafrost areas is related to extra activity about maintenance of efficiency of the pipeline system. Extra difficulty while constructing of a linear part of the main pipeline is caused by tougher requirements for regulatory documentation to the work performed. These facts colour quality assessment of the object to be constructed. The task is developing a method of the quality assessment of construction and installation works that responds to the parameters of data collecting speed and calculation simplicity. During the developing of the a method of the quality assessment of a linear part of the main pipeline the method of analytical hierarchy process was used, for getting the nomenclature of the most important jobs from the perspective of the safety of the object. Methods in mathematical statistics was used for processing of the results of the measurement made. Hypothesis testing method allowed receiving the confidence interval for the sample of random variables. Practical benefit of the work is obtaining the method of the quality assessment, which allows to make conclusions about the quality of objects constructing using publicly available data on the work process.
Keywords: method of analytical hierarchy, Student coefficient, general population, confidence interval, single indicators
The article presents the relevance, main principles, goals and results of the risk-based approach in the activities of the state construction control units on the example of the experience of the Main Department of State Construction Supervision in the Moscow region. The authors describe the methods, methods and modern technologies used by the Main Department of State Construction Supervision in the Moscow Region to implement the goals and objectives that allow improving the quality of control and supervision activities, taking into account the use of a risk-based approach.
Keywords: state control, construction control, risk category, risk-based approach, hazard class, regional state construction supervision, construction management, construction quality problems
The article describes the main stages of development of the construction of green roofs in Russia and abroad, the basic scheme and the technology of green roofs.
Keywords: Green construction, green roofing, environmental certification, noise pollution, drainag
The article presents the results of the analysis of the modern market for the production of precast concrete products and existing technologies for their production, as well as a description of the possible method of modernization of the technological line and the production process. The main goal of the modernization is to eliminate vibrating stations and the use of self-compacting concrete mixes from the production line, which significantly increases the plant's productivity, increases the service life of molds, reduces the production time of the product and reduces financial costs.
Keywords: high-functional concrete, self-compacting concrete, production modernization, road slab, production of reinforced concrete products, conveyor production technology
This work considers the controversial situations in the field of construction control, technical supervision and оbtaining a commissioning permit. The problematic situation, in which there was no (partially or completely) construction control at the construction stage, is considered. The difficulties of obtaining a Conclusion on Compliance in a similar situation and appealing the decision of the technical supervision authorities in court are picked out. Poor elaboration of mechanisms for obtaining a Conclusion on Compliance in the absence of construction control is noted. The shortcomings of the existing document and the lack of a prescribed legal status of the construction and technical expertise are highlighted. The ways of solving the existing problem at the legislative level are offered. Amending the existing legislative framework, reforms of existing or creating new mechanisms for resolving problematic situations in the absence of construction control are suggested as the main solutions.
Keywords: construction control, technical supervision, construction and technical expertise, commissioning, Conclusion on Compliance, amendment to the legislative framework
No major construction project is implemented without the involvement of contractors who perform significant work in the field of geodesy, design, equipment manufacturing, construction, control and commissioning of the object. In the conditions of market economy the existence of risk is inevitable for all participants in the construction project. Risks are one of the most serious problems of the customer, who needs to keep the limit of the estimated cost of a construction project unchanged. If negative external risks cannot be regulated, internal risks can be minimized or eliminated. Analysis of the experience of customers in the oil and gas industry of the Tyumen region draws attention to the relevance of the problem today. The article presents technical, financial, and organizational risks as the most common, and identifies ways to manage them.
Keywords: the customer's and contractor's responsibilities, risk insurance, reserve funds
This article discusses the issue of planning the sequence of construction of buildings in the quarter development. The authors analyzed and classified the factors that can influence the choice of the sequence of construction of objects in complex development. An algorithm for planning the construction sequence is proposed, which the considered factors are included in the model, taking into account the ranking of their significance.
Keywords: stream method, quarter development, line arrangement, quarterly arrangement, sequence of construction, situational factor, unforeseen factor, social factor, production factor
This article describes the main methods for strengthening the retaining walls for foundation pits during the construction of buildings, and it compares the technical and economic indicators of the anchors and spacers method by determining these indicators for each method.
Keywords: excavation, ground anchors, spacer mounts, foundation pit cofferdam, "wall in the ground"