×

You are using an outdated browser Internet Explorer. It does not support some functions of the site.

Recommend that you install one of the following browsers: Firefox, Opera or Chrome.

Contacts:

+7 961 270-60-01
ivdon3@bk.ru

  • Evaluation of the reliability of pavement during the operation phase

    In the current socio-economic reality, the main task of design, road organizations is the high-quality reproduction of road structures, the development of the road network, and also to maintain the transport-operational condition of the highway. In this paper, examples and models are provided that allow an estimation of the probability of destruction of individual sections of a road structure, as well as the dependence of the reliability of a road structure on the actual coefficient.

    Keywords: road wear, service life, defect, crack, analysis, actual condition, deflection, coefficient of strength, deformation

  • Instrumental parking on the street road network

    The problem of parking of cars on the street-road network of the city of Volgograd is considered. The methods of parking at different angles in the winter season have been studied, and the most optimal one has been selected and justified. Dense building does not allow to solve this problem by searching for other parking places, since each driver has a desire to be within walking distance of the car to the object he needs. In residential areas of the city with the existing buildings, this problem is difficult to solve, therefore, it is necessary to improve the existing schemes for parking in the instrument areas

    Keywords: parking, circuit, intensity, traffic jam, delay, angle, speed, curb, driver, car, strip

  • Analysis of the application of improved road bitumen (BNDU) for the repair of federal highways

    The physicochemical properties of bitumen samples of road oil improved have been studied. It is established that the samples submitted for testing meet the regulatory requirements practically throughout the entire range of tests, except for the values ​​determined after heating the binder in a thin film according to the procedure of EN 12607-2 (EN 12607-1), which, apparently, indicates the insufficient stability of these bitumens to thermal and oxidative aging. The influence of the adhesive additive on the intensity of bitumen wetting of the surface of mineral materials was studied

    Keywords: bitumen petroleum road improved, resistance to thermal and oxidative aging, regulatory requirements

  • The question of the service life of asphalt pavements

    Open factors, Nelson influencing the quality and the service life of asphalt pavement. Presents results of a study of dielectric coatings to contribute.

    Keywords: asphaltic concrete, coating, intensity, pothole, drainage, track, speed, PMA, sections, dielectric permittivity

  • Traffic safety assessment on crossings

    In article traffic safety of vehicles at the movement on crossings is considered. Possibility of a road accident is estimated. In article the initial speed, size of a stopping way of the second vehicle, taking into account overall dimensions of vehicles are determined.

    Keywords: street road network, crossing, road accident, traffic safety, initial speed, stopping way

  • Analysis of the deciphering process in the construction of highways

    The systems for collecting, processing, recording, and using certain data are quite a huge system and have a special part - remote sensing materials. With the correct organization of the system of remote observation, it is important that it be oriented to

    Keywords: Decoding, pictures, space carriers, objects, roads, construction, measurement of parameters, boundaries, space, painting

  • Analysis of the modes of compression and development of recommendations on their perfection

    The analysis of the modes of compression of different layers of structural layers of travelling clothing is conducted. Worked out to recommendation on perfection of the modes of compression by oscillation skating rinks.

    Keywords: compression, vibration

  • "Possible ways of increasing the traffic capacity of the street and road network "

    Steady growth of the Russian Federation, the car park has led to the fact that almost all major cities of the country settings of the road network does not meet the increased intensity of traffic on basic highways in recent years. A significant increase in traffic volumes require to make informed decisions on the organization and management of road traffic on the basis of reliable information about the parameters of traffic flow. Modern problems of traffic in Volgograd considered in the article. The research results of basic characteristics of traffic flow in the more overloading parts of the road network and of the organization of work of public transport routes Volgograd. Set out possible ways of increasing the throughput of the street and road network and speed traffic flow. A comprehensive approach to solve this problem, including measures to improve traffic light control and traffic management of urban public transport, as well as the use of Intelligent transport systems.

    Keywords: street and road network, traffic flow, traffic capacity, urban passenger transport, coordinated traffic light control, intelligent transport systems

  • Recommendations on the selection of bearing parts in order to increase the service life of a bridge structure

    One of the most important elements of the bridge, from which the service life of this structure directly depends, is the supporting part. It provides the movement and rotation of span structures, as well as the transfer of all loads from the forces acting on them to the supports. The task of the designer is to select such support parts, that could be allowed maximum reducing of the forces, acting at the ends of the beams and having a minimum resistance to their free movement. It is necessary in each case to select the support part, which will most closely meet the requirements. To solve this problem, the author structured and tabulated the kinds of support parts. And also an analysis of the main characteristics of some of them.

    Keywords: bearing part, exothermia, bridge structure, durability, service life, transfer of loads and displacements, deforming systems, sliding systems, rolling systems

  • Analysis of modern methods of increase of stability of asphalt concrete pavements to rutting

    The article provides analysis of modern methods of struggle with the rut in road clothes with asphalt. Increasing the resistance of asphalt concrete pavements to rutting can be done in two ways: by calculation and improve the composition of the asphalt concrete. Development of methodology for calculation of road constructions on the resistance to rutting will allow us to take the design of pavements resistant to rutting and develop strategies for maintenance activities. Material science solutions to optimize the properties of the asphalt are to improve the properties of binders, use of modifiers, the use of asphalt concrete that is resistant to rutting, such as stone mastic asphalt and polymer-dispersed-reinforced asphalt concrete.

    Keywords: road construction, rutting, asphalt pavement, polymer-bitumen binder, the composition of the asphalt concrete, stone mastic asphalt, polymer-dispersed-reinforced asphalt concrete, methods of forecasting rutting

  • Influence of route vehicle traffic volume on the road network capacity

    This article considers influence of route vehicle traffic volume on the road network capacity. The atrcile introduces the change of passanger traffic according to hours of the day on the bus routs, which are laid through signaled crossings of streets Kyubisheva - 8 Marta in Yekaterinburg nearby big transfer transport junction in the distric of subway station ""Geologicheskaya"". Recieved data gives an opportunity to identify percentage of buses in the transport stream. It is one of the factors that influences on the calculations of the length of traffic signal cycle. The analysis of received statistical data lets us draw the following conclusion: 1. To reconstract network of streets and provide the maximal traffic capacity on the crossings, it is necessary to consider variable structure of transport flow. 2. To calculate the length of traffic signal cycle it is necessary to consider the bus traffic volume, which changes according to the time. 3.There was determined the change dependency of passanger traffic on hours of the day on the bus routs. It gives the possibility to predict changes in the length of traffic signal cycle. 4. Recieved results can be used to calculate the length of traffic signal cycle and in order to developn an optimized route network of passenger transport.

    Keywords: road network, signaled crossings, transport stream/flow, route vehicle, structure of transport flow, length of traffic signal cycle

  • Influence of process parameters on the properties of the preparation mode of polymer-dispersed-reinforced asphalt

    The article presents the results of experimental studies of changes in the physico-mechanical and operational performance, polymer-dispersion-reinforced asphalt mixtures depending on the temperature of the mineral material and the time of mixing the components in the preparation of the material in the coating plant

    Keywords: asphalt concrete, stone mastic asphalt concrete mixture, the wear layer, grain structure, sieve, fraction, track, toughness, shear resistance, roughness.

  • Harmonization of the requirements of European standard for grading SMA-11 subject to the requirements of the Russian standards

    The article presents the main provisions of the work garmonizatsii such European standards as TL Asphalt-StB 07 and the Finnish standards on asphalt PANKry with the requirements of the RF regulatory framework and given the developed compositions of asphalt mixtures, SMA-11 and their physico-mechanical characteristics.

    Keywords: asphalt concrete, stone mastic asphalt concrete mixture, the wear layer, grain structure, sieve, fraction, track, toughness, shear resistance, roughness

  • Assessment of traffic safety of vehicles on a straight section of the road.

    In article traffic safety of vehicles on a straight section of the road is considered. Possibility of a road accident at sudden braking ahead of the going car for any reason is estimated. For safety of the movement and prevention of capacity reduction of the road because of emergence of a road accident the vehicles moving on a straight section of the road of big extent have to observe the distance determined by formulas.

    Keywords: road capacity, road accident, traffic safety, minimum and safe distance

  • The construction of the road M-11 using the system INDORCAD/ROAD

    construction, road, system IndorCAD/Road, a digital model of geodetic engineering terms, design, transport system, transportation hub.

    Keywords: construction, road, system IndorCAD/Road, a digital model of geodetic engineering terms, design, transport system, transportation hub

  • Experimental study on determination of resistance to accumulation of residual deformation of stone mastic asphalt SMA-11 prepared on harmonized compositions

    The article presents a study on the determination of the resistance to accumulation of residual deformations of asphalt concrete, SMA-11 on the device dynamic tests (PDI) the advantage of these over asphalt concrete stone mastic asphalt concrete SMA-10 GOST 31015.

    Keywords: asphalt concrete, stone mastic asphalt concrete mixture, the grain structure, sieve, fraction, residual strain

  • Improvement of construction of road section of winter road Bilibino – Anyuisk, district of Chukotka Autonomous Okrug

    considers the questions of improvement of road winter road Bilibino – Anyuisk held in the area of Bilibino. On the basis of the calculations for modeling correspondences and intensity of movement of motor transport on the roads on a 20-year term.The calculations of the volumes of freight and passenger traffic calculated annual mean daily intensity and composition of motor traffic for the year 2016 and the forecast for 2020 and 2030 for the construction of corrugated metal pipe of large diameter with approaches across the Creek Midday on 150 km of an improved winter road with an extended period of exploitation Bilibino – Anyuisk also given in the article

    Keywords: construction, automotive, station, passenger transport, winter road, the length, zoning, space, roads, Chukotka

  • Results of Production Rresearches of Reliability of Tunnelling Combines of Selective Action

    Details are given as for the results of production researches of reliability of Tunnelling Combines KP21, produced by JSC Kopeisk Engineering Plant, in conditions of Almaznaya Mine of Coal Company "Gukovugol" when driving preparatory developments with section up to 16 sq.m and strength of country rock up to 7 units according to Protodyakonov Rock Strength Scale. The obtained data allowed to define average operating time before breakage, as well as to make the list of details and knots having the greatest effect on reliability of the combine. The results processed allowed to calculate numerical characteristics of empirical distribution, which are similar to numerical characteristics of a random variable: ensemble average, dispersion, average quadratic deviation, variation coefficient, etc.

    Keywords: tunnelling combine of selective action, reliability, operating time before breakage

  • Analysis of Efficiency of Application of Mine Loaders

    Technique of modeling operation of a loader on the basis of method of statistical tests is given in the article and the way of defining current specific expenses connected with operation of loader of a certain design and statement of tasks on their improvement is considered. Modeling the process of loader operation pursues the aim to define specific expenses of consumer on operating the car taking into account casual stream of refusals and restoration of operating state of separate knots and parts of the car at any moment of effective life, with possibility of making decision on efficiency of application of a certain machine design, as well as possibility of forecasting expected indicators of reliability and optimum terms of operation. Basic data and results of comparative analysis of expenses of consumer on operation of serial car 2PNB2 and new sample of MPNK car are given.

    Keywords: modeling, method of statistical tests, specific expenses, mine loaders

  • The noncontact method of dynamic deflection measuring of road constraction's elements

    The present article is concerned with noncontact method development of energy transmission and receiver probes information readout provided to monitoring permanent sets development in the road construction elements.Method is based on telemetering of elastic and plastic strains which accumulate in the road constructions under the action of traffic loads and climatic factors under actual road operating conditions. This method can be used either for highway and for special ground. Designed method make it possible both long-terms and short-times examinations and substantially enhance reliability and efficiency of receiver probes.

    Keywords: receiver probes, monitoring of road constructions, noncontact method, permanent set

  • Developing effective solutions repair pavement on city highways

    This article focuses on the development and planning strategy for the choice of effective solutions for repair of road pavements in the city. Appointment of repairs is considered the example of street Bolshaya Sadovaya, Rostov-on-Don on the results of the previously detailed assessment of the state of the pavement. A list of suggested repairs for different lanes on the surveyed area.

    Keywords: pavement, rehabilitation, a detailed evaluation, rutting

  • Justification life extension bearing precast low-pressure water-lifting shield dams

    The problem of justifying extending the service life of hydraulic structures in Russia is unsatisfactory condition requiring modernization and refurbishment. Currently in Russia over the length of the river network of 2.37 million sq km includes more than 125 thousand rivers that can be used for navigation. When locking, the most widely found as regulator control structures of low pressure shield dam spillways with metal swivel farms most widely used when evaluating the residual life of structural elements carrying water conveyance structures, has an integrated risk assessment of the accident. According to the distribution curves can be classified technical condition of each item, such as rods and plates in various defects as small and dangerous damage the elements included in the design. During the simulation obtained contour plots of stress-bearing low-pressure water-lifting precast shield dams for subsequent prediction justify continued reliable exploitation. The concept of life extension studies supporting structures prefabricated low-pressure water-lifting shield dams on the example of individual structures bearing elements, prefabricated low-pressure water-lifting shield dams, based on modeling of the loading process from various defects and damage due to prolonged use.

    Keywords: water-conducting structures, prefabricated pumping low-pressure-mounted dam, modeling, technical condition, residual life.

  • Application gidrofobizirovanny soil cement in the bottom layers of road clothes

    Tidying of influence of cationic polymer on the basis of alifatichesky amin on loessial soil strengthened by cement. For the purpose of application of local materials in constructive layers of road clothes.

    Keywords: Soil Cement, polymer, strength at a bend and compression, water saturation, road clothes.

  • All-weather repair of coverings of highways with use of the modified cold asfaltobetonny mixes

    Cold asfaltobetonny mixes which unlike standard mixes prepare without drying and heating of a mineral component are developed. Advantages of these mixes are that they is better, than standard mixes cooperate with a damp repaired covering and in the course of warehousing don't demand performance of actions for prevention of caking of a mix. Mixes are intended for timely localization of the centers of the destruction appearing on pavings in the early spring and autumn.

    Keywords: emergency repair of pavings, hollows and sags, surface-active substances, razzhizhenny bitumen, cold asfaltobetonny mix.

  • Planning and the organization of freight automobile transportation on a street road network of megalopolises

    The analysis of operating conditions of transport systems shows that constantly increasing needs for freight transportation at existing level of auto mobilization are accompanied by a number of problems. Lack of a route network and information support about traffic conditions for movement of Lorries involves negative influence on social and economic development of the cities and the country as a whole. Owing to growing load of the highways, increasing intensity of freight automobile transportation in the conditions of the modern large cities megalopolises need of planning and regulation of transport streams sharply is felt. For ensuring comfort to participants of traffic and their informing on a condition of a transport network, for decrease in material and financial expenses the control systems of the traffic which have received the name Intellectual Transport Systems were created.

    Keywords: motor transport, cargo transportation, intellectual transport systems, modeling.