IMPROVING THE MECHANISMS OF INNOVATION IMPLEMENTATION IN ROAD SECTOR
Deputy General Director A.N. Kamenskikh,
Deputy Head of Project Office for Science
I.V Chantsev
(FAI «ROSDORNII»)
Contact information: CHancevIV@rosdornii.ru
Abstract:The article deals with the analyze of strategic, organizational and administrative, methodological and other documents of different levels, containing provisions on approbation and application of innovative materials, technologies and constructions on roads of general use, depending on their purpose. Proposals for legal regulation with a view to orderly use and systematize existing documents in the field of innovations in the road sector, including for their unification are considered.
Keywords:innovation, innovative activity, new materials, new technologies, innovative products, development, road sector.
PECULIARITIES OF CALCULATING ANTI-KARST PROTECTION OF ROADS USING GEOSYNTHETIC MATERIALS
Doctor of Engineering, Professor N.Z. Gotman
(Russian University of Transport (MIIT));
(Perm National Research Polytechnic University),
Post-graduate student Yu.I. Panteleev
(Russian University of Transport (MIIT))
Contact information: natalya.gotman@marksgroup.ru; panteleevyuriy@icloud.com
Abstract:The article deals with the numerical study results of the stress-strain state of a road embankment with reinforcement of the base with geosynthetic material during the formation of karst deformations of 2 types: a karst sinkhole at the base of the road embankment and a cavity in karst soils lying 10-20 m below the embankment base.
When designing anti-karst protection with the installation of an alarm system on geosynthetic material, in addition to the traditional calculations for failure in the base, the need to perform calculations of the efforts and deformations in the geosynthetic material for the formation of a cavity in karst soils is justified for taking timely protection measures.
The necessity of additional calculation of the embankment slope stability after the formation of a karst sinkhole is proved.
Keywords:karst sinkhole, karst cavity, geosynthetic materials, alarm system, efforts and deformations in the geosynthetic material, embankment slope stability.
TECHNOLOGICAL AND ECONOMIC ASPECTS OF INCLINOMETRIC METHOD OF SETTLEMENT MEASUREMENT OF EARTH ROADBED OF TRANSPORT STRUCTURES
Ph. D. (Tech.), Associate Professor N.A. Ustyan
(«GEO-PROJECT» LLC)
Contact information: +7 (921) 397-97-36; nagapet_ustyan@mail.ru
Abstract:The article considers a new geophysical method of measuring the settlements of embankments on weak soil bases of transport structures. The organizational and technical peculiarities of the measurement are presented, the novelty of the proposed method, its technical features and the economic feasibility of its application are shown.
Keywords:road and railway embankments, weak soil base, inclinometry, settlement measurement.
MODERN INSTRUMENTS AND METHODS FOR MEASURING THE EVENNESS OF ROAD PAVEMENTS
Doctor of Engineering V.V. Shcherbakov
(Siberian State University
of Railway Engineering (SSTURE)),
Ph. D. (Tech.) A.V. Konkin
(SPI NR «Territorial Administration of Highways of the Novosibirsk Region»),
Ph. D. (Tech.) I.V. Shcherbakov,
Ph. D. (Tech.), Associate Professor
O.V. Kovalyova
(Siberian State University
of Railway Engineering (SSTURE))
Contact information: vvs@stu.ru; master@tuad.nsk.ru; sibdorproect@bk.ru; kov@stu.ru
Abstract:The article considers measuring instruments and techniques (methods) for determining evenness, allowing to ensure in accordance with the regulatory requirements the accuracy of assessing the quality of road pavements and bases, in particular by the method of oblique projection, as well as by traditional method based on leveling the road pavement. The application of shortstep leveling and its implementation in an automated mode using devices based on laser and fiber-optic gyroscopes of the UDC "Rovnost" type is justified.
Keywords:national project, safe quality roads, longitudinal evenness, methods and instruments for measuring the evenness, irregularity amplitudes.
ABOUT THE INTERACTION OF THE CAR WHEEL WITH THE RUT
Ph. D. (Tech.) N.A. Lushnikov
(RUT (MIIT)),
Ph. D. (Tech.) P.A. Lushnikov,
Engineer D.I. Kovalev
(FAI «ROSDORNII»),
Ph. D. (Tech.) V.A. Kretov
(RUT (MIIT))
Contact information: lab10@mail.ru; P.lushnikov@rosdornii.ru
Abstract:The article deals with the interaction of the car wheel with the road pavement when the automobile leaves the rut. The results of calculations of the value of the additional lateral force that occurs in this case, acting on the wheel from the pavement side at different rut parameters, are presented. The directions of further research on the development of requirements for rut parameters are proposed
Keywords:road pavement, rut, car wheel, road surface, stability, roadability, finite element model, Mooney-Rivlin relations.
Abstract:The article discusses the effectiveness and durability of patching the pavement using cold asphalt concrete mixtures under adverse weather conditions. The main types of asphalt pavement defects that cause the formation of potholes, affect the user's perception, road traffic safety and reduce the durability of the asphalt concrete pavement are given. The physical and mechanical properties of the cold repair water-activated mix AQUA PATCH are determined.
Keywords:asphalt concrete pavement repair, potholes, longevity of repair, innovative materials and technologies, cold patches.
PROSPECTS OF USING INFORMATION MODELING TECHNOLOGIES WHEN SOLVING PROBLEMS OF WINTER ROAD MAINTENANCE
Doctor of Engineering, Professor
T.V. Samodurova,
Ph. D. (Tech.), Associate Professor
O.V. Gladysheva,
Ph. D. (Tech.) N.Yu. Alimova,
Ph. D. (Tech.) Yu.V. Baklanov
(Voronezh State Technical University (VSTU))
Contact information: samodurova@vgasu.vrn.ru; ov-glad@ya.ru; natalimowa@ya.ru; baklanovmail@mail.ru
Abstract:The prospects of using information modeling technologies when solving problems of winter road maintenance are considered. The scheme of using information resources for managing road maintenance works is presented. The conclusion about the possibility of using the research results in the field of information modeling is made. The main mathematical models designed for 116 solving the snow protection problems, temperature calculating and assessment of road pavement condition in winter are given. They can be used during the operational phase of roads for organization of operational management of winter maintenance works in the road life cycle. The results of the researches on the winter maintenance problems, which are carried out at the chair of Roads and Bridges Designing of Voronezh State Technical University, as well as the implementation of these results in the industry regulatory documents are presented
CONSTRUCTIVE SOLUTIONS WHEN TRANSFORMATINGGIRDER BRIDGES INTO SEMI-INTEGRAL ONES
Ph. D. (Tech.), Professor V.I. Popov,
Post-graduate student A.A. Zhavoronkova (Moscow State Automobile and Road Technical University (MADI))
Contact information: popov.viktor@gmail.com; a.zhavoronkova@pdnspb.ru
Abstract:The article presents the proposals, which are used in foreign practice for transforming operated small bridges into semi-integral ones. The peculiarities of semi-integral bridges in comparison with integral ones are noted. The existing disadvantages of girder bridges of small spans are given, which can be mostly eliminated using a semi-integral scheme. The constructions of bridge bearing units transformed from girder to semi-integral ones are provided.
Keywords:abutment, semi-integral bridge, expansion joint, bearing unit, reconstruction.
MODELING THE DEVELOPMENT OF DEFECTS OF REINFORCED CONCRETE SPANS OF BRIDGE STRUCTURES IN THE OPERATION PROCESS USING A LOGISTIC CURVE
Post-graduate student S.V. Kuznetsova
(Voronezh State Technical University (VSTU))
Contact information: 8 (903) 857-43-97; kuznetsovastanislava@gmail.com
Abstract:The article deals with the results of experimental studies and the creation of a mathematical model describing the development of defects in bridge structures during operation. The regularities of the development of defects over time during the operation of the park of bridge structures are done.
Keywords:bridge structures, reinforced concrete spans, development of defects, operation, logistic curve, mathematical model.
METHODOLOGICAL APPROACH TO CALCULATION OF THE INDICATOR «CONTENTMENT WITH ROAD SAFETY» OF THE FEDERAL PROJECT «ROAD TRAFFIC SAFETY» OF THE NATIONAL PROJECT «SAFE QUALITY ROADS»
Doctor of Engineering, Professor
V.D. Kondratiev
(Moscow Automobile and Road
State Technical University (MADI));
Doctor of Engineering, Professor
A.V. Shchepkin
(ICS RAS)
Contact information: k-051310@mail.ru
Abstract:For the purpose of calculating the new integral indicator «Contentment with road safety» included in the Federal project «Road Traffic Safety», synthesized four areas of activity, including indicators characterizing these areas have been formed. To assess the integral indicator expertly, the values of the generated indicators for each area of activity are determined. Then the values of these indicators, taking into account their importance, are transformed into a generalized assessment of the areas of activity. Using an integrated assessment procedure, generalized direction assessments are transformed into a comprehensive evaluation of contentment with road traffic safety. It is noted that it is possible to achieve an acceptable value for a comprehensive evaluation of contentment with road traffic safety by improving the values of not all indicators, but only some of the ones that have the greatest impact on the integrated evaluation of the integral indicator.
Keywords:road traffic, road traffic safety, national project, federal project, expertise, integrated assessment, dichotomous tree, logical transformation matrix.
PEDESTRIAN TRAFFIC ENGINEERING MEASURES ON ROUNDABOUTS
Senior Lecturer D.D. Silchenkov,
Ph. D. (Tech.), Associate Professor
G.S. Zakozhurnikova,
Student Yu.A. Silchenkova
(Volgograd State Technical University (VSTU)), Ph. D. (Tech.), Associate Professor
S.S. Zakozhurnikov
(Russian Technological University (MIREA)) Contact information: xdimanx.vstu@mail.ru
Abstract:The article deals with pedestrian traffic engineering on roundabouts. The classification of pedestrian traffic engineering measures on these intersections taking account domestic and foreign experience is given.
IMPROVING THE APPROACHES AND METHODS FOR EVALUATION OF PHYSICAL AND OPERATIONAL PROPERTIES OF ROAD ASPHALT CONCRETE IN RUSSIA
Ph. D. (Econ.), General Director E.N. Simchuk, Deputy Director General, Head of RC
K.A. Zhdanov
Deputy Head of the Asphalt Concrete Laboratory I.A. Dedkovsky
(ANO «Research Institute Transport and Construction Complex» (NII «TSK»))
Contact information: niitsk@niitsk.ru
Abstract:The article deals with the approaches to regulating requirements for asphalt concrete. The test methods, as well as compaction conditions for traditional asphalt concrete according to GOST 9128 and asphalt concrete according to new national standards developed on the basis of foreign experience are analyzed. The description of advanced test methods modelling real operational impact on asphalt concrete is given.
Keywords:asphalt concrete, test methods, operating parameters, rutting, water resistance, wear capacity, anti-icing reagents.
CURRENT SITUATION AND DEVELOPMENT TRENDS OF ASPHALT MIXING EQUIPMENT
Doctor of Engineering, Professor A.P. Lupanov, Engineer A.V. Silkin
(JSC «AMP Kapotnya»),
Ph. D. (Tech.), Professor V.V. Silkin,
Master Student K.M. Gulyaev
(Moscow State Automobile and Road
Technical University (MADI))
Contact information: alesilkin@yandex.ru
Abstract:The article analyzes domestic and foreign experience in the production of asphalt concrete mixes in cyclic and continuous asphalt mixing plants. The main trends in the development of asphalt mixing equipment aimed at improving the quality and reducing the cost of production of asphalt concrete mixes while meeting the requirements of environmental legislation are determined.
ANALYSIS OF AMENDMENTS TO FEDERAL LEGISLATION AND STANDARDIZATION DOCUMENTS IN THE FIELD OF ENVIRONMENTAL PROTECTION
Ph. D. (Tech.) A.V. Bobkov
(FAI «ROSDORNII»)
Contact information: bobkovav@rosdornii.ru
Abstract:The requirements for environmental protection in light of the amendments to the environmental legislation that have entered into effect, as well as the requirements established by GOST R 59205-2021 «Automobile roads of general use. Environmental protection. Technical requirements» are considered.
Keywords:environmental protection in road design and construction, sewage treatment equipment, environmental impact assessment