The article deals with the features of the occurrence of hydraulic shocks in urban drainage systems. It is noted that when starting up pumping units, a hydraulic shock can occur if the operational personnel do not comply with the maintenance regulations. Significantly more likely to cause hydraulic shocks when the pump units or the unit suddenly stops. In addition, in long water pipes with a complex profile, there is a high probability of a high vacuum and, accordingly, the occurrence of breaks in the continuous flow of waste liquid. The probability of a hydraulic shock is affected by the method of starting the pumping units. Measures to prevent the occurrence of hydraulic shocks are considered: improving the reliability of external power supply; the use of a combined power supply scheme; the use of check valves with smooth closing and other methods.
Keywords: hydraulic shock, sewage system, pumping station, pressure pipelines, power supply
Wide integration of computing resources into physical processes resulted into evaluation of new concepts and evaluation of a concept of cyber-physical sysems in particular. The article reveals an approach of implementation of cyber-physical processes into construction field. Since the process of construction faces the problems, which were traditionally considered as poorly formalized, that leads to an accumulation and transfer of huge amounts of often heterogeneous in its structure and purpose of information. As a result of a detailed analysis of the prerequisites for the creation, structure and functions of cyber-physical systems, the authors establish that the solution of such problems is engaged in cyber-physical systems. The importance of the use of cyber-physical systems in the construction industry is due to its significant role in the economy of any country. The authors identify a number of areas of application of cyber-physical systems in construction, such as monitoring and control of various parameters and systems, logistics and many others. Further studies of the authors need the development of specific algorithms for the implementation of cyber-physical systems in solving these problems.
Keywords: construction, cybernetics, cyber-physical system, cybernetics of construction systems, internet of things, internet of services, internet of people, united information space, construction system, synergy of cyber space and real world
Implementation of digital technologies in construction field demands a fundamental revision on the project documentation approach. First, is to re-orient the design approach by transition from two dimensional project documentation to object oriented multidimensional informational model. That leads to use of new technologies in construction production and in quality control of project documentation field. Based on previous conclusions, the problem of quality check of an information model, the check on compliance of the specifications and technical documentation of the state where construction is carried out, and on compliance to requirements of the client becomes number one priority. A general algorithm of information model verification of anthropogenic object is offered in the article. The typology of anthropogenic objects is offered. Approaches to form the lists of the compliance regulations on the specifications and technical documentation depending on type of anthropogenic object are defined. The problem of forming lists of the compliance regulations on the information model according to its stage of life cycle is separately considered. An approach to the future development of the tools to the complex analysis of information model based on the open IFC format is formulated.
Keywords: construction, cybernetics, information modeling, construction system, cybernetics of construction systems, Building information models, analysis, verification, BIM, anthropogenic object
Implementation of digital technologies in construction field demands a fundamental revision on the project documentation approach. First, is to re-orient the design approach by transition from two dimensional project documentation to object oriented multidimensional informational model. That leads to use of new technologies in construction production and in quality control of project documentation field. Based on previous conclusions, the problem of quality check of an information model, the check on compliance of the specifications and technical documentation of the state where construction is carried out, and on compliance to requirements of the client becomes number one priority. A general algorithm of information model verification of anthropogenic object is offered in the article. The typology of anthropogenic objects is offered. Approaches to form the lists of the compliance regulations on the specifications and technical documentation depending on type of anthropogenic object are defined. The problem of forming lists of the compliance regulations on the information model according to its stage of life cycle is separately considered. An approach to the future development of the tools to the complex analysis of information model based on the open IFC format is formulated.
Keywords: construction, cybernetics, information modeling, construction system, cybernetics of construction systems, Building information models, analysis, verification, BIM, anthropogenic object