ABOUT NEW REGULATORY STANDARDS FOR FINANCIAL COSTS FOR OVERHAUL REPAIR, REPAIR AND MAINTENANCE OF FEDERAL ROADS, AS WELL AS RULES FOR THEIR CALCULATION
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Ph. D. (Pedagogy) E.A. Latkina,
Engineer T.F. Matushenko
(FAI «ROSDORNII»)
Contact information: matushenko@rosdornii.ru - Abstract: The regulatory standards for financial costs for overhaul repair, repair and maintenance of federal roads, as well as rules for their calculation, which have been developed for the purpose of fulfilling the Instruction of the President of the Russian Federation as of 10th August 2011 No. Pr-2302, are considered. The new regulatory standards have been calculated with account of increasing of interrepair service life of federal roads with improved type of surfacing up to 12 year in compliance with technical regulation requirements relating to standard design loads. The general design concept of regulatory standards allows to provide optimization of basic standard explicit costs for road maintenance and repair for 5% in order to fulfilling the Instruction of the Deputy Chairman of the Government of the Russian Federation A.V. Dvorkovich as of 10th July 2011 No. AD-P9-4613. The estimated economic effect from the implementation of financing strategy for the adjusted regulatory standards amounts to 14 billion rubles annually.
- Keywords: regulatory standards of financial costs, overhaul repair, repair and maintenance, increasing of interrepair periods, road network, conditions for updated standards formation, rules of calculation, financing.
- UDC: 625.76:657.471
- File: Download
ABOUT STANDARDIZATION PROGRAM DEVELOPING IN ROAD SECTOR
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Ph. D. (Tech.) A.A. Domnitsky
(FAA "ROSDORNII"),
Ph. D. (Tech.) R.V. Kargin
(North-Caucasian branch
of the FAI «ROSDORNII»,
Rostov State Transport University)
Contact information: dom-a-a@rosdornii.ru;
kargin-r-v@mail.ru - Abstract: The article dwells upon the results of work on updating the normative and technical documentation in the road sector, which have formed the basis for the Prospective program of standardization in the road sector for the period 2018-2022.
- Keywords: road sector, standardization, technical regulation, national standard (GOST R), preliminary national standard (PNST).
- UDC: 625.7/.8:006.052
- File: Download
ANALYTIC METHODS OF TANGENTIAL STRESSES OF SOIL FROST HEAVING
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Engineer O.V. Tretyakova
(Perm National
Research Polytechnic University)
Contact information: olga_wsw@mail.ru - Abstract: The paper is concerned with soil frost heaving phenomenon so far as it relates to tangential stresses and forces developed on a lateral surface of foundations, which are being constructed in cold regions. It is reported about the author’s assessment of some aspects of the origin and the development process of tangential frost heaving stresses, with a focus on calculating them. The expressions for determining tangential frost heaving stresses on lateral foundation surface are given.
- Keywords: moisture, ultimate shear stress, boundary layer, tangential stresses, ice, frost heaving, stress-strain state, heterogeneity, adfreezing strength, stress relaxation, shearing strain, specific cohesion of soil, stable adfreezing forces, foundation, soil particles.
- UDC: 624.139.22:624.15
- File: Download
ABOUT THE QUESTION OF TAKING INTO ACCOUNT ESTIMATED VEHICLE WHEEL PRESSURE WHEN FLEXIBLE PAVEMENT STRUCTURE DESIGNING
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Doctor of Engineering, Professor E.V. Uglova,
Engineer O.A. Shilo
(Academy of Construction and Architecture,
Don State Technical University (DSTU)),
Engineer V.V. Akulov
(Road and Transport Research Institute
(DORTRSNII),
Don State Technical University)
Contact information: uglova.ev@yandex.ru;
olga_shilo@bk.ru;
marine_25@inbox.ru - Abstract: The article deals with the influence of loading parameters on road pavement deformation, as well as the possibility of taking into account changes in vehicle wheel pressure on pavement from design load.
- Keywords: estimated transport load, elastic deflection, design of pavement structures.
- UDC: 625.7/.8
- File: Download
DETERMINATION OF ALLOWABLE ROOT-MEAN-SQUARE DEVIATIONS OF GEOMETRIC PARAMETERS OF ROADS
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Doctor of Engineering, Professor V.V. Stolyarov,
Ph. D. (Tech.), Associate Professor
N.V. Shchegoleva
(Yuri Gagarin State
Technical University of Saratov)
Contact information: shegoleva123@mail.ru - Abstract: The article presents tolerances on deviations of radii of convex, concave, horizontal curves, width of multilane pavement in one direction, and overall width of the carriageway during operational acceptance.
- Keywords: tolerance, root-mean-square deviation, radius, convex curve, concave curve, horizontal curve, parameter.
- UDC: 519.2:625.7/.8
- File: Download
TAKING INTO ACCOUNT THE PERFORMANCE RELIABILITY WHEN PAVEMENT DESIGNING FOR LOW-VOLUME ROADS
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Doctor of Engineering, Professor A.M. Kuliznikov
(FAI «ROSDORNII»)
Contact information: kulizhnikov@rosdornii.ru - Abstract: The approach peculiarities for pavement design for low-volume roads (LVR) taking into account foreign experience are considered. The methodology for LVR pavements structural analysis, considering performance reliability, is given. The example of tests for determining road pavement rutting susceptibility and pavement material abrasion is done.
- Keywords: pavement, road, low-traffic-volume, operation, rutting, abrasion, wearing, frost heaving.
- UDC: 625.711.2:625.8
- File: Download
ABOUT THE REQUIREMENTS FOR ROAD BASES AND PAVEMENTS EVENNESS DURING CONSTRUCTING
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Doctor of Engineering, Professor
O.A. Krasikov
(FAI «ROSDORNII»)
Contact information: krasikov@rosdornii.ru - Abstract: The article dwells upon the issues of requirements compliance of road pavement evenness by clearances under three-meter rod with the requirements by International Roughness Index (IRI), which are presented in the revised edition of construction rules and regulations (SNiP) 3.06.03-85. Based on the comparative analysis the conclusion is drawn that evenness requirements by three-meter rod are not in compliance with the IRI scale requirements, which are more strict. The differentiated evaluation of road base and pavement evenness by IRI scale is regarded. The note «Excellent» differs from «Satisfactory» by 22-45%, that might be regarded as improving of initial evenness when constructing, and consequently contributes to optimization of operating costs and increase of road pavement service life. On the basis of comparison of standard specifications for evenness during constructing with theses ones during operating the difference between them was determined, which is 1,1-3,3%. Such interval is sufficient for providing normative interrepair service life of road pavements.
- Keywords: road bases and pavements evenness, clearances under three-meter rod, International Roughness Index (IRI), differentiated evaluation of evenness, road pavement service life.
- UDC: 625.7
- File: Download
RESEARCH RESULTS OF TECHNOLOGY AND EXPERIENCE OF ROAD CONSTRUCTION USING ROLLER-COMPACTED SLAG-CONCRETES DURING THE WINTER PERIOD
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Doctor of Engineering, Professor
B.A. Asmatulayev,
Ph. D. (Tech.) R.B. Asmatulayev,
Engineer A.T. Ordabayev,
Engineer P.P. Yezmakhunov,
Engineer A.E. Oshanov
(Kazakhstan Scientific, Research and Design Institute of Road and Transport Problems «Dortrans»),
Member of the International
Transport Academy U.Sh. Kasymov
(FAI «ROSDORNII»)
Contact information: boris-aisa@mail.ru - Abstract: The issues of year-round road construction are still not given enough attention, although it would have allowed to escape downtime from 5 to 7 months. The article dwells upon the research results of road construction using slow-setting slag-concretes during the winter period. For the first time in Kazakhstan self-healing road concretes have been developed and tested during road construction, which have already been strengthened during 30-40 years of service without repairing. The main structure-forming newgrowths in concrete contained in the prevailing quantity are gelly-like low-basic calcium hydrosilicates of the C-S-H type of nanoscale values, that provides reliable road operation without damages despite climate and transport loads impact.
- Keywords: winter road construction, technology, freezing temperatures, freezing – thawing, strength, research, experience, monitoring, self-healing, concrete nanostructure.
- UDC: 625.7:625.841+669.162.275.2
- File: Download
ASPHALT PAVEMENTS POTHOLES. REASONS FOR THEIR OCCURRENCE AND PREVENTIVE MESURES
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Doctor of Engineering, Professor
A.V. Rudenskiy
(FAI «ROSDORNII»)
Contact information: ruda0704@yandex.ru - Abstract: The article concerns some ways to enhance service life of asphalt concrete road pavements by reducing potholes formation during operation. This problem is revealed to be solved by improving asphalt concrete mixtures production technology, as well as the system of technical requirements for asphalt concrete, which ensure its water resistance increasing.
- Keywords: asphalt concrete, potholes, water resistance increasing, improvement in asphalt concrete mixtures production technology.
- UDC: 625.855.3
- File: Download
GEOSPATIAL MODELING TECHNOLOGY OF GEORADAR DATA
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Ph. D. (Tech.) R. A. Eremin
(FAI «ROSDORNII»),
Ph. D. (Tech.), Associated Professor
Yu. A. Sukhobok
(Far Eastern State Transport University),
Post-Graduate Student N. Yu. Rassadkin
(Bauman Moscow StateTechnical University)
Contact information: + 7-967-448-78-75;
+ 7-967-448-78-75;
+7 (977) 864-82-91;
r.eremin.01@gmail.com;
khvyus@gmail.com;
battleg@yandex.ru - Abstract: The results of road pavement diagnostic and survey using a new geospatial modeling technology of georadar data, which is a combination of georadar and geodesic survey methods, are done. The results of solving problems in estimating road pavement layer thickness, identifying subsided zones of pavement layers, as well as understanding the causes for road pavement deformation are presented. The difference between the offered technology and similar solutions proposed by foreign companies such as Roadscanners (Finland), IDS (Italy), MALA Geoscience (Sweden) and others is the high flexibility and orientation towards use in practice in the Russian road sector.
- Keywords: roads, structures, pavement, thickness of layers, laser scanning, georadar, satellite systems, 3D models, computer-aided design systems, geoinformation systems.
- UDC: 625.8:550.835
- File: Download
DESIGNING OF SNOW PROTECTION MEASURES FOR ROADS BY USING SPECIAL CARTOGRAPHIC MATERIALS
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Doctor of Engineering, Professor
T.V. Samodurova,
Ph. D. (Tech.), Associate Professor
T.V. Gladysheva,
Ph. D. (Tech.) Y.V. Baklanov,
Ph. D. (Tech.), Associate Professor
N.J. Alimova,
Engineer K.V. Panferov
(Voronezh State Technical University)
Contact information: samodurova@vgasu.vrn.ru;
ov-glad@ya.ru;
baklanovmail@mail.ru;
natalimowa@ya.ru;
kvpan@ya.ru;
8(473)271-52-02 - Abstract: The results of researches for determining the estimated parameters of drifting snow activities for 17 regions of Russia are presented. According to researches results a set of special maps is developed. These maps provide information about the distribution of volumes of drift-snow transport and of brought snow to 16 directions (points of compass) for territory of the Central Federal District. The recommendations for use the cartographic material for snow protection designing are considered. The example of snow protection designing for road section in the Moscow region is done.
- Keywords: winter road maintenance, blizzard drifts, parameters of drifting snow activities, maps, snow protection.
- UDC: 625.768.6: 528.91
- File: Download
GPR MONITORING OF SOILS CONDITION OF ROAD CONSTRUCTIONS OPERATED IN THE CONDITIONS OF CRYOLITHOZONE
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Ph. D. (Tech.), Associated Professor
L.L. Fedorova,
Ph. D. (Tech.) D.V. Savvin,
Engineer M.P. Fedorov,
Engineer G.A. Kulyandin,
Engineer A.S Struchkov
(Mining Institute of the North named after N.V. Chersky SB RAS)
Contact information: Lar-fed-90@rambler.ru;
savvin.denis@inbox.ru;
kgavrilu@yandex.ru;
struchkovalexander@gmail.com;
+7(4112) 390074 - Abstract: The article deals with the results of researches which show that the size of reduction in the rate of distribution of an electromagnetic wave in soil in a thawed state, in comparison with frozen, depends on their humidity. It is revealed that this dependence is approximated by a linear empirical formula on the basis of which the monitoring method of soil condition by data of different-seasonal measurements is proposed. With the view of researches results objective interpretation in the conditions of the cryolithozone, the signs are developed for identification of zones of the increased humidity, taliks, sites of the weakened soil, heaving and the infiltration boundaries of underground waters. The possibility of the developed method is shown on the example of georadar survey of roads of Yakutia.
- Keywords: GPR (ground penetrating radar), monitoring, soils, frozen rocks, humidity, dielectric permeability.
- UDC: 621.396.96:625.731.4 (571.56)
- File: Download
VERIFICATION OF FILTRATION CONSOLIDATION CALCULATIONS IN GEOTECHNICAL PROGRAMS
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Engineer D.E. Erchenko,
Ph. D. (Geological and Mineralogical Sciences)
E.V. Fedorenko
(«Miakom StP»)
Contact information: evgeniy@miakom.ru - Abstract: The article compares analytical and numerical calculations of filtration consolidation in special geotechnical programs (softwares): GEO5 Settlement; Settle3D and Plaxis 2D with a well-known analytical solution of N.A. Tsytovich. If in the engineering programs implementing the algorithms for automating analytical calculations the matching is performed in a direct way, then in the numerical modeling programs it is necessary to correctly set the initial conditions and adjust all the influencing parameters for the correct comparison.
- Keywords: geotechnics; numerical simulation; finite element method (FEM); Plaxis program; consolidation; theory of filtration consolidation.
- UDC: 624.131
- File: Download
COMPARISON OF VARIATIONS OF PSEUDOCOHESION DETERMINING IN REINFORCED SOIL
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Ph. D. (Geological andMineralogical Sciences)
E.V. Fedorenko
(«Miakom StP»),
Post-Graduate Student Fam Dyk Tiep
(Moscow Automobile and Road Construction State Technical University (MADI))
Contact information: tiepducpham@gmail.com;
evgeniy@miakom.ru - Abstract: The article dwells upon two methods for the determining pseudocohesion that arise when reinforcing elements are added to non-cohesive soils: proposed by A. Vidal (taking into account only the distance between the reinforcing elements and their strength), as well as improved one which allows additionally to take into account the influence of aggregate size. The analysis of each of the methods has been done, as well as, based on the results of numerical simulation using the Plaxis program the insignificant effect of the mechanical properties of the soil has been confirmed.
- Keywords: pseudocohesion, finite element method (FEM), hardening soil model; reinforced soils structures, reinforced slopes.
- UDC: 625.731.2:624.138.23
- File: Download
BEHAVIOR ANALYSIS OF SINGLE-SPAN OVERPASS WITH INTEGRAL ABUTMENTS
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Ph. D. (Tech.) V.I. Popov,
Post-graduate Student Pham Tuan Thanh,
Post-graduate Student Nguyen Van Hien,
Post-graduate Student Nguyen Manh Ha
(Moscow Automobile and Road Construction State Technical University (MADI))
Contact Information: +7 (925)010-10-97;
+7 (968)475-34-79;
+7 (965)299-80-68;
+7 (963)961-32-06;
vpopov@stpr.ru;
pthanh_2008@mail.ru;
nvhienmadi@gmail.com;
manhhamta@gmail.com - Abstract: The article deals with the results of theoretical researches of single-span overpasses with integral abutments with straight, skewed and curved alignments. The use cases of steel H-shaped and pipe piles in integral abutments are considered and it is shown that for overpasses with integral abutments pipe piles are the most preferred. It is revealed that including approach slabs in overpass work may decrease bending moment value in piles and level of normal stresses in their sections. It is recommended to apply the embedded approach slabs for skewed and curved overpasses and for straight ones surface slabs forming the entire construction with abutment and span.
- Keywords: integral abutment, overpass, approach slab, displacements, stresses.
- UDC: 625.745.12
- File: Download
DISADVANTAGES OF THE CURRENT THEORY FOR BEARING CAPACITY CALCULATING OF ECCENTRICALLY COMPRESSED ELEMENTS AND SOME WAYS TO IMPROVE IT
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Ph. D. (Tech.), Associated Professor
I.N. Starishko
(Vologda State Technical University)
Contact information: starishkoi@mail.ru - Abstract: The article deals with the calculation results of eccentrically compressed elements in their limit state according to the bearing capacity taking into account all possible stresses in longitudinal reinforcement with the area As from Rs to Rsc caused by different values of eccentricity e of the longitudinal force N. The calculating method is based on simultaneous solution of the equilibrium equations of longitudinal forces and internal efforts, together with the equilibrium equations of bending moments in limit state based on strength of the normal sections.
- Keywords: eccentrically compressed elements, equilibrium equations, bearing capacity, strain-stress state, eccentricity.
- UDC: 624.046.2
- File: Download
USING OF THE PARETO PRINCIPLE FOR DECISION MAKING TO PROVIDE ROAD TRAFFIC SAFETY
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Ph. D. (Tech.) A.L. Rybin
(FAI «ROSDORNII»)
Contact information: Rybin@rosdornii.ru - Abstract: The example of the analysis of road accident causes based on the Pareto principle for their subsequent elimination is done.
- Keywords: road accident causes, Pareto principle, measures option, road traffic safety.
- UDC: 656.081
- File: Download
ABOUT THE EVALUATION OF TRAFFIC FLOW NON-UNIFORMITY
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Ph. D. (Tech.) N.A. Lushnikov,
Ph. D. (Tech.) P.A. Lushnikov
(FAI «ROSDORNII»),
Doctor of Engineering V.A. Kretov,
Ph. D. (Tech.) V.E. Nikolaevskiy
(Russian University of Transport (MIIT))
Contact information: p.lushnikov@rosdornii.ru - Abstract: The article dwells upon the issues concerning optimal traffic flow speed. Some formulas for estimation of speed non-uniformity, as well as the examples of their usage are given.
- Keywords: road, traffic flow, speed, coefficient of variation, traffic density.
- UDC: 656.13
- File: Download
ABOUT THE IMPLEMENTATION RESULTS OF INTERNATIONAL PROJECT ON ROAD TRAFFIC SAFETY IN THE RUSSIAN FEDERATION
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Ph. D. (Medicine) E.D. Yurasova
(WHO RF),
Doctor of Engineering, Professor
V.D. Kondratiev
(Moscow Automobile and Road Construction State Technical University (MADI))
Contact information: yarasovae@who.int;
k-051310@mail.ru - Abstract: The international project on road traffic safety, of which the Russian Federation participant is, was implemented in two Russian regions – the Lipetsk Region and the Ivanovo Region in between 2010 and 2014. Innovative approaches were applied to change the road users’ behavior in terms of three principle factors effecting the results of road accidents: speed, usage of seatbelt and child restraints. The project included social marketing along with strict law enforcement.
- Keywords: road traffic safety, Consortium, Global project, increased capacity, monitoring, law enforcement, risk factors, social marketing, Advisory Board.
- UDC: 625.7:656.13.08
- File: Download
USING HYDROXIDES (SLIMES) OF GALVANIC PRODUCTIONS FOR ROAD CONSTRUCTION AND REPAIR
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Ph. D. (Tech.), Professor N.S. Kovalev
(Voronezh State Agricultural University named after Emperor Peter the Great),
Assistant Professor E.N. Otarova
(«Air Forces Military Educational and Scientific Center» Zhukovsky – Gagarin Air Force Academy»)
Contact information: NSKovalev@mail.ru;
ekaterina.otarova@mail.ru - Abstract: The issue of hydroxides (slimes) utilization for environment protection and ensuring sewage facilities operation in a closed loop is considered. The use of hydroxides (slimes) for activation of the surface of aggregates in asphalt mixes and preparation of activated mineral powder is suggested. Modification of mineral powders by slimes of the galvanic productions (in amount of 7-12%) by their joint grinding with limestone promotes improvement of quality of asphalt concrete, including durability, heat and water resistance, when decreasing the bitumen consumption in comparison with asphalt concrete on the basis of unmodified mineral powder.
- Keywords: regenerates, hydroxides (slimes), reclamation, asphalt concrete mixes, activated mineral powder.
- UDC: 625.855
- File: Download
THERMODYNAMIC CHARACTERISTICS OF MATERIALS USED TO ROAD AND AIRFIELD PAVEMENTS REPAIR
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Ph. D. (Tech.) F.K. Gorbunov
(Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences),
Engineer Yu.N. Shevtsov
(LLC Scientific-Practical Entreprise «Novasib»),
Ph. D. (Tech.) L.K. Berdnikova
(Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences)
Contact information: f1123723@yandex.ru;
shewtsow@yandex.ru - Abstract: The article concerns the research results of thermodynamic characteristics of universal road fill (URF) for the purpose of applying for street and roads repair.
- Keywords: road, road pavement, climate impacts, composite material.
- UDC: 625.76:678.7+536.4
- File: Download
USE OF SILICA-CONTAINING INDUSTRIAL WASTES IN ASPHALT CONCRETE PRODUCTION
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Ph. D. (Tech.) T.S. Himich,
Ph. D. (Tech.) E.V. Shapovalova
(Siberian State Automobile and Highway University (SibADI))
Contact information: himich_ts@mail.ru;
shelv62@mail.ru - Abstract: The article deals with the possibility of partial replacement of natural raw materials by silica-containing industrial wastes in asphalt concrete production. This should provide reducing an anthropogenic load on natural systems together with preservation of performance of construction materials.
- Keywords: silica-containing industrial wastes, asphalt concrete, efficient use of natural resources, performance.
- UDC: 625.7/.8:691.168
- File: Download
ABOUT THE MECHANISM OF INTERACTION OF MICRODOLOMITE FILLER AND PETROLEUM POLYMER RESIN IN THERMOPLASTIC MATERIALS FOR ROAD MARKING
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Doctor of Engineering, Professor
A.A. Artemenko
(Saratov State Technical University named after Gagarin Yu. A.),
Engineer V.V. Talalay,
Doctor of Engineering, Professor
Yu.E. Vasiliev,
Doctor of Engineering, Professor
`E.V. Kotlyarsky
(Moscow Automobile and Road
Construction State Technical University (MADI)),
Engineer I.G. Shashkov
(Air Force Academy named after Professor Zhukovsky and Yu.A. Gagarin (Voronezh))
Contact information: talalay@bk.ru - Abstract: When developing the marking polymer composition formulation, the composition influence on technological and performance properties – resistance to aggressive factors impact and durability are analyzed. As a result of complex researches of functional and technological characteristics of marking compositions based on petroleum polymer resins (PPR), the effectiveness of a new method of sequential regulation of the selected functional and technological parameters has been proved, taking into account road and climate conditions of application and operation. New functional and technological characteristics of cool melts of polymer materials on the basis of PPR for road marking in the form of ready-to-use technological blocks are determined, that it enables to obtain marking material of high degree of readiness for use and more homogeneous and not critical to storage and transportation conditions. A comparison of performance of the developed compositions with an analogue for resistance to impact of wheels with various treads (including studded ones) has been carried out at the MADI «Carousel-2» testing site.
- Keywords: road marking, production, formulation, aliphatic petroleum polymer resins, maleic anhydride-modified resin; microdolomite, aminopropyltriethox-ysilane, titanium dioxide, industrial oil, styrene block copolymer, polyethylene wax.
- UDC: 625.7/.8
- File: Download