TO THE QUESTION OF SPECIALIZED DIAGNOSTICS FOR THE DETERMINATION OF THE POSSIBILITY OF THE MOVEMENT OF HEAVY VEHICLES ON ROADS
-
Engineer Yu.V. Golovan
(North-Caucasian Branch of the
FAI «ROSDORNII»)
Cont. information: k_m_z4917@mail.ru
- Abstract: The article concerns the determination of the possibility of passage of heavy vehicles on the roads of the general use of the Russian Federation on the basis of relevant legislative acts and current regulatory documents. Contemporary directions of scientific researches are proposed to ensure the effectiveness of assessing the possibility of passage of heavy vehicles on the country’s roads.
- Keywords: heavy vehicle, out-of-gauge cargo, pavement construction design, equivalent loads, special permit, road technical condition assessment.
- UDC: 625.7/.8
- File: Download
NEW APPROACHES TO THE FROST RESISTANCE VERIFICATION OF ROAD STRUCTURE
-
Ph. D. (Geology and Mineralogy), Associated Professor G.L. Kagan,
Doctor of Chemistry, Professor V.A. Shorin,
Ph. D. (Tech.), Associated Professor
A.Yu. Velsovsky
(Vologda State University)
Contact information: 8 (8172) 53-32-01;
npcmp@yandex.ru - Abstract: The article discusses some methods for determining the heave deformation during the soil mass freezing, including the road structure. These methods are based on the use of characteristics of frost heaving deterdetermined during laboratory tests. The results of many years of field tests allowed justifying the characteristic diagram of the change in the intensity of frost heaving at the depth of freezing for road structure. The possibility of constructing this diagram according to laboratory tests is considered. A new method of testing road structure for frost resistance is proposed, the core of which is described in the example.
- Keywords: frost resistance, frost heave deformation, relative deformation, intensity of frost heaving, characteristic intensity diagram.
- UDC: 625.73+624.139.22
- File: Download
ABOUT THE CONSTRUCTION OF AN OILFIELD ROAD AT WETLAND OF THE REPUBLIC OF KOMI
-
Ph. D. (Tech.) M.O. Karpushko,
Ph. D. (Tech.) I.L. Bartolomei
(Perm National Research Polytechnic University),
Engineer S.P. Dementev
(OOO «DOROS»)
Contact information: mkarpushko@gmail.com;
barmadesu@yandex.ru;
s.dementev@yandex.ru - Abstract: The article deals with the research results related to the development of optimal subgrade structure in terms of timely performance and labor intensity, energy requirement, materials consumption and costs for constructing oilfield roads at wetlands, as exemplified by the Republic of Komi. An engineering solution for the subgrade construction using the «wrapping half around» technique for non-woven geosynthetic material as an interlayer has been chosen to ensure year-round and uninterrupted movement of technological transport for oil facilities service operation.
- Keywords: subgrade, weak soils, bog, peat, non-woven geosynthetic material.
- UDC: 625.731.1(470.13)
- File: Download
SOME WAYS TO IMPROVE QUALITY OF ENGINEERING SURVEYS
-
Doctor of Engineering, Professor
A.M. Kulizhnikov
(FAI «ROSDORNII»)
Contact information: kulizhnikov@rosdornii.ru - Abstract: Some ways to improve engineering survey quality, when roads designing, are considered. The relevance of this issue in the light of the increase of roads service life is substantiated. The attention is paid to improving the normative base, conducting technical control, introducing modern innovative engineering survey methods, as wells as carrying out engineering and geological support directly when road construction works performing.
- Keywords: engineering surveys, normative base, technical control, innovative methods, engineering and geological support.
- UDC: 625.72:624.131
- File: Download
ANALYSIS OF THE EFFECT OF DESIGN AXIAL LOADS ON ROADS
-
Doctor of Engineering, Professor
O.A. Krasikov,
Member of the International
Transport Academy U.Sh. Kasymov
(FAI «ROSDORNII»),
Ph. D. (Tech.), Professor I.N. Kosenko
(L.B. Goncharov Kazakh Road Academy (KazADI))
Contact information: krasikov@rosdornii.ru - Abstract: Based on the analysis of the effect of design axial loads on roads with non-rigid pavements, it was revealed that the main problem is overloading of a vehicle, both heavy and light. In the absence of overload, the axial loads on the road do not exceed the normalized values. In this case, the most objective characteristic is the specific pressure on road pavement. It is emphasized that the pavement layer thickness and the whole pavement thickness (with the same road-building materials) differ in the groups of design loads based on the ratios of wheel track design diameters, as well as for the design load of 130 kN an individual approach to pavement design is required.
- Keywords: non-rigid pavements, design axial loads, vehicle overload, specific pressure, design wheel track diameter, design road pavement properties.
- UDC: 656.13:625.7/.8
- File: Download
ACCEPTABLE PARAMETERS OF TRAFFIC LANE WIDTH ON HIGHWAYS IN THE RUSSIAN FEDERATION
-
Engineer D.A. Strakhova,
Engineer A.A. Greshnikov
(FAI «ROSDORNII»)
Contact information: strakhova@rosdornii.ru;
greshnikov@rosdornii.ru - Abstract: The article deals with the issue of the possibility of highways construction cost reduction by decreasing left lanes width on the basis of the foreign experience, international agreements, as well as realized researches.
- Keywords: highway, construction cost, traffic lane width, motion trajectory, clearance.
- UDC: 625.7:625.723(470+571)
- File: Download
ROAD PAVEMENT STRUCTURE WITH REGENERATED LAYER
-
Ph. D. (Tech.) G.S. Bakhrakh
(FAI «ROSDORNII»)
Contact information: bakhrakh35@mail.ru - Abstract: The standard values of the modulus of elasticity of pavement regenerated by cold method are considered. The results of modulus of elasticity changes on experimental road sections regenerated in the State of Virginia (USA) for eight years are presented. It is revealed that the modulus of elasticity of the layer regenerated using bitumen emulsion and foamed bitumen increases over time.
- Keywords: bitumen emulsion, foamed bitumen, modulus of elasticity, structural coefficient, cold regeneration.
- UDC: 625.855.3
- File: Download
TECHNIQUE FOR PROTECTION OF WEIGH-IN-MOTION SENSOR FROM PHYSICAL WEAR WHEN ROAD PAVEMENT RUTTING
-
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»)
Contact information: f1123723@yandex.ru;
shewtsow@yandex.ru - Abstract: The article concerns a technique for protection of weigh-in-motion sensor from physical wear when road pavement rutting. It is reported about some advantages of the proposed technique based on the use of universal road filling, including improvement of road surfacing quality and service life increase of dynamic weighing systems on roads up to 1.5 times, that will significantly reduce their repairs and maintenance costs.
- Keywords: road, road pavement, weigh-in-motion sensor, rut, rutting, universal road filling.
- UDC: 608.2:625.76
- File: Download
EVALUATION OF EFFICACY OF WASHING MATERIALS FOR ROADS AND STREETS TREATMENT
-
Engineer S.Yu. Rozov,
Engineer Yu.N. Rozov
(FAI «ROSDORNII»)
Contact information: rozov@rosdornii.ru - Abstract: The article deals with the method for estimation of efficacy of washing materials applied for cleaning asphalt concrete pavements of roads and streets. The proposed method includes: preparation of a contaminant consisting of materials simulating sweepings on road surfaces; contamination of a clean sample of the substrate and determination of the contaminant rest after treatment with a washing material. Based on the obtained results the washing material efficacy index is determined. The example of the application of the proposed method, when assessing the efficacy index of two washing materials used in Moscow, is given.
- Keywords: roads, streets, washing materials, contaminant, efficacy index, coefficient of cleaning power.
- UDC: 625.768.7
- File: Download
COMPUTATIONAL MODELING OF VARIANTS OF SNOW FENCES POSITIONING AT ROADSIDE
-
Doctor of Engineering, Professor
A.V. Kochetkov,
Ph. D. (Tech.), Associated Professor
L.V. Yankovskiy,
Doctor of Engineering, Professor
M.G. Boyarshinov
(Perm National Research Polytechnic University),
Ph. D. (Tech.), Associated Professor
N.V. Schegoleva
(Yuri Gagarin State Technical University of Saratov),
Ph. D. (Tech.) I.G. Shashkov
(Russian Air Force Military Educational and Scientific Center «Air Force Academy named after Professor N.E. Zhukovsky and Y.A. Gagarin»)
Contact information: soni.81@mail.ru - Abstract: The article dwells upon a method for the joint realizing of mathematical and full-scale aerodynamic modeling of the snow fences positioning, as well as the processes of their interaction with the snow-and-wind (snow-drifting) streams, when carrying out winter maintenance of public roads. The airstreams computational modeling is performed using a 3D model taking into account the surrounding terrain.
- Keywords: snow drifts, road, design, winter maintenance, operation, snow fence, computational modeling, snow-and-wind stream, velocity, pressure.
- UDC: 625.768.5:004.94
- File: Download
IMPROVEMENT OF THE TECHNIQUE FOR QUALITY CONTROL OF SOILS COMPACTION
-
Engineer I.P. Rezyapkin,
Engineer D.E. Erchenko,
Ph. D. (Tech.) A.V. Moshenzhal
(OOO «Miakom SPb»)
Contact information: from.work055@Gmail.com;
dina@s-impulse.org;
a.moshenzhal@gmail.com - Abstract: This article deals with the study, which is a logical continuation of researches on quality control of performed construction works in regard to road pavements layers and underlying soils compaction. The modulus of elasticity of soils is taken as the controlled parameter. An optimized approach to performing quality control of soils compaction during construction by comparing the design estimates of total elastic moduli values with those actually measured at the construction site is suggested. The nomographs for determination of theoretical (design) values of total modulus of elasticity are first proposed. These nomographs are adjusted to use in conjunction with small-sized equipment for dynamic loading, by which actual values of total moduli of elasticity are determined. Two different cases: new construction and reconstruction reflected in the constructed nomographs are reviewed. The recommendations and clarifications concerning the technique application, as well as the limits to its applicability, and practicable methods for eliminating identified inconsistencies when constructing are also given. The key directions of further researches are determined.
- Keywords: road pavements, modulus of elasticity, small-sized equipment for dynamic loading, soil compaction.
- UDC: 625.8
- File: Download
RESEARCH ON SOIL BEHAVIOR OF APPROACH EMBANKMENT AFTER SINGLE-SPAN CURVED BRIDGE INTEGRAL ABUTMENT
-
Ph. D. (Tech.) V.I. Popov,
Postgraduate Student Nguyen Manh Ha
(Moscow Automobile and Road Construction State Technical University (MADI))
Contact information: +7 (925)010-10-97;
+7 (963)961-32-06;
vpopov@stpr.ru;
manhhamta@gmail.com - Abstract: The article presents the analysis results of soil behavior of approach embankment after single-span curved bridge integral abutment in Vietnam conditions. The calculation results of soil settlement and buckling of approach embankment after abutment, as well as bending moments in approach slab under loads for different configurations of approach slab are given. The conclusions about advantages of approach embankment reinforcement are presented, that significantly improves passage conditions in a transition zone between the bridge and the road due to important reduction of soil deformation of approach embankment.
- Keywords: integral abutment, curvature of span, soil, soil settlement, soil buckling, geotextile, approach slab.
- UDC: 624.164
- File: Download
CONTEXTUAL DISTINCTIVE PECULARITIES OF PLANNING SOLUTIONS OF BRIDGE HEAD ROAD TRANSPORT JUNCTIONS
-
City Engineer Y.A. Storchak
(Global Media Group e)
Contact information: storchak@gmg-space.com;
+ 7 (909) 157-54-54;
+38 (097) 157-54-54 - Abstract: The basis of transport communication and mobility of people is made by interaction of the pedestrian streams and the traffic flows in the transport and town-planning system, in particular, its elements – bridge head road transport junctions. The importance of effective changes between different types of public transport is defined by the European Commission documents «Towards a new culture for urban mobility» (2007) and «Action Plan on Urban Mobility» (2009). According these recommendations ideal trips are «seamless», in which passengers don't spend almost time for changes between different types of transport. This ideology is implemented, in particular, in the multimodal (or intermodal) transport hubs, which are the part of the bridge head road transport junctions.
- Keywords: street and road network, urban embankment, trunk, urban highway, regional highway, road transport junction, water barrier, urban bridge crossing, bridge head road transport junction, city public transport, transport interchange hub, traffic volume, carrying capacity, traffic engineering, public transport complex, embankment zone, urban public space, engineering planning and architectural design solution, urban configurating node, urban configurating zone, transport and town planning system.
- UDC: 625.745.1
- File: Download
ON THE ISSUE OF IMPROVEMENT OF ROAD BRIDGES RELIABILITY
-
Ph. D. (Tech.), Associated Professor
A.N. Yashnov
(Siberian Transport University),
Engineer A.V. Zubko
(FKU Uprodor «Yenisey»)
Contact information: 8 (902)946-22-32;
Zubko_av@mail.ru - Abstract: The article concerns the questions of improving the bridge management system on Russian federal roads. The operating management system for determining the bridge structures technical condition is described using the example of FKU Uprodor «Yenisey» of the Federal Road Agency (Rosavtodor).
- Keywords: bridge structures, technical condition, diagnostics, monitoring, traffic safety.
- UDC: 624.21
- File: Download
ACCIDENT RATE ANALYSIS AT ROAD SECTIONS WITH HORIZONTAL CURVES
-
Ph. D. (Tech.) N.A. Lushnikov
(FAI «ROSDORNII»),
Postgraduate student D.Yu. Tamakhin
(Russian University of Transport (MIIT))
Contact information: lab10@mail.ru - Abstract: The article deals with a brief analysis of accident rate on horizontal curves carried out on two road sections. The preliminary conclusions concerning horizontal curves basic parameters, affecting the accident rate, are given. It has been determined that the road traffic safety is affected not only by the curve radius, but also by turning angle of road alignment.
- Keywords: curve radius, accident rate, traffic safety, turning angle of road alignment.
- UDC: 656.13:625.721
- File: Download
MONITORING OF SPEED RATES ON HIGHWAYS
-
Ph. D. (Tech.) B.B. Anokhin,
Ph. D. (Tech.) P.A. Lushnikov,
Ph. D. (Tech.) N.A. Lushnikov,
Engineer D.A. Strakhova,
Engineer A.A. Greshnikov
(FAI «ROSDORNII»),
Engineer I.S. Ilyushin
(OOO «Kvazar»)
Contact information: strakhova@rosdornii.ru;
greshnikov@rosdornii.ru - Abstract: The research results of the average traffic speed on the Federal Highway M9 «Baltiс» with four, six, eight traffic lanes are given. Some criteria are proposed to introduce an increased speed limit from 110 km/h to 130 km/h, according to the note to paragraph 10.3 of the Traffic Rules included of August 6, 2013 by the Decree of the Government of the Russian Federation of July 23, 2013 No 621.
- Keywords: road traffic monitoring, measuring average traffic speed, 85th percentile speed, GLONASS, increased speed limit.
- UDC: 656.11:656.13
- File: Download
RESEARCH OF INFLUENCE OF REGENERATES ADDITIVES ON PROPERTIES OF CEMENT AND MINERAL MIXES
-
Ph. D. (Tech), Associate Professor
N.S. Kovalev
(Voronezh State Agricultural University named after Emperor Peter the Great),
Senior Lecturer E.N. Otarova
(Military Educational and Scientific Center of the Air Force«N. E. Zhukovsky and Y.A. Gagarin Air Force Academy»)
Contact information: NSKovalev@mail.ru;
ekaterina.otarova@mail.ru - Abstract: The issue of utilization of regenerates of ion-exchange pitches for the purpose of environment protection and ensuring work of treatment facilities for sewage treatment in the closed cycle is considered. The application of regenerates for regulation of properties of cement and mineral mixes from local materials when constructing road pavement bases is offered. The use of regenerates in cement and mineral mixes allows to utilize them and to reduce cement consumption on 1-2 % that will decrease road construction costs.
- Keywords: utilization of regenerates, cement and mineral mixes for constructing road pavement bases.
- UDC: 625.844
- File: Download
RESEARCH AND OPTIMIZATION OF FORMULATIONS OF BITUMEN AND MINERAL COMPOSITIONS BASED ON EXPANDED CLAY AGGREGATE
-
Ph. D. (Tech) Yu.G. Borisenko,
Postgraduate student S.V. Rudak
(North-Caucasian Federal University)
Contact information: borisenko2005@yandex.ru;
s-rudak@mail.ru - Abstract: The analysis of the strain and thermo-stress state of bitumen and mineral road pavements is carried out and the directions of improvement of their quality are shown. The results of experimental researches of physical-mechanical and operational properties of bitumen and mineral compositions with the use of expanded clay gravel are presented. As a result of a comparative analysis of the experimental data, optimal formulations of bitumen and mineral compositions having reduced density and weight, high strength characteristics and performance characteristics are determined. It is shown that it is possible to reduce the bitumen content of bitumen and mineral compositions on the basis of porous aggregates by using expanded clay gravel fractions of 5-20 mm in the rational proportions.
- Keywords: bitumen content; bitumen and mineral composition; grain composition; expanded clay; light porous filler; physical, mechanical and operational properties.
- UDC: 625.855.53
- File: Download
PROPERTIES OF HIGH STRENGTH CONCRETE WHEN NEGATIVE TEMPERATURES CYCLING
-
Doctor of Engineering S.S. Kaprielov
(Concrete and Reinforced Concrete Research Institute n. a. A.A. Gvozdev),
Engineer A.L. Goldenberg
(LTD NIL «STROJMATERIALY»),
Doctor of Engineering, Professor
A.G. Tamrazyan
(National Research Moscow State University of Civil Engineering (NRU MGSU)
Contact information: kaprielov@mail.ru;
alexandrgolden@gmail.com;
tamrazian@mail.ru - Abstract: The data concerning self-healing high strength concrete when freeze-thaw cycling is presented. The experimental quantitative evaluation of destruction and self-healing processes is given. The processes developing in the cement stone at the micro-structure level are described. The destruction degree of the concrete with the additive of MB-30C, when frost action developing in comparison with the conventional, is smaller, and the degree of self-healing, however, is higher than for conventional concrete, which is associated with the intensity of the residual clinker hydration fund. Revealed trends indicate that the performance properties of concrete with organo-mineral modifier MB-30C remain unchanged significantly longer than for conventional concrete.
- Keywords: high strength concrete, durability, self-healing, microfracture, periodical impact, freeze-thaw temperature.
- UDC: 666.972.55:625.84
- File: Download
EVALUATION OF ASPHALT CONCRETE FATIGUE CRACKING RESISTANCE
-
Ph. D. (Tech.) G.S. Bakhrakh
(FAI «ROSDORNII»)
Contact information: bakhrakh35@mail.ru - Abstract: The method proposed in the USA for evaluating asphalt concrete fatigue cracking resistance by semi-circular notched beam test is considered. It is suggested using cracking energy determined by the specified test as an indicator of fatigue cracking resistance. The analysis of research works showing the possibility of replacing a cyclic test with monotonous one is carried out.
- Keywords: asphalt concrete, fatigue cracking resistance, semi-circular notched beam, cracking energy.
- UDC: 625.855.3
- File: Download
POSSIBLE VOLUMES OF USING SECONDARY RAW MATERIALS AND LOCAL MATERIALS IN ROAD CONSTRUCTION
-
Doctor of Engineering, Professor
A.V. Rudenskiy
(FAI «ROSDORNII»)
Contact information: ruda0704@yandex.ru - Abstract: The data on the length of the Russian Federation’s road network are given, as well as the assessment of the possibilities of using secondary raw materials (SRM), when roads constructing, repairing and reconstructing, is made. It is shown that to solve the problem of the all possible use of SRM it is necessary to resolve technical problems of large-scale use of various types of SRM, as well as to create administrative and legal conditions that encourage widespread use of SRM.
- Keywords: road construction, secondary raw materials, economic effect, road structures, asphalt concrete pavements.
- UDC: 625.7:658.567.004.8
- File: Download
RESULTATS OF RESEARCH ON THE INFLUENCE OF MINERAL FILLER ON ASPHALT BINDER PROPERTIES USING SHEAR RHEOMETER
-
Engineer V.N. Garmanov,
Ph. D. (Tech.) L.A. Gorelysheva
(FАI «ROSDORNII»)
Contact information: labndo@rosdornii.ru - Abstract: The article concerns the results of research of asphalt binder in terms of: shear stability, resistance to multiple shear deformations, fatigue resistance. The samples were aged according to the RTFOT and PAV methods. The dependence of fatigue and viscosity on the presence of mineral filler is analyzed.
- Keywords: polymer-bitumen binder, asphalt binder, road petroleum bitumen, shear stability, RTFOT aging, PAV aging, resistance to multiple shear deformations, activated quartz mineral filler.
- UDC: 625.855.3:625.752
- File: Download
PROSPECTS FOR THE USE OF PHOSPHOGYPSUM WHEN PRODUCING ASPHALT CONCRETE
-
Master's Degree Student D.V. Gerasimov,
Ph. D. (Tech.), Associated Professor
A.A. Ignatiev,
Doctor of Engineering, Professor
V.M. Gotovtsev,
Doctor of Chemistry, Professor I.V. Golikov
(Yaroslavl State Technical University)
Contact information: geras930@mail.ru;
alexassis@ya.ru;
gotovtsev_vm@mail.ru;
golikov.i@yandex.ru - Abstract: The article dwells upon the research results related to the problem of processing of large-tonnage waste of fertilizer manufacturing – phosphogypsum. It is proposed to use this waste when producing asphalt-concrete mixtures obtaining a long-term storage granulated product while maintaining performance properties. Granulated asphalt concrete mixture meets standards requirements and allows obtaining a qualitative road pavement when placing in both hot and cold conditions. The material strength is achieved by ordered structure formation when granulating by pelletizing, and water resistance – by bitumen modification with polyethylene terephthalate, which is domestic solid waste. Different variants of the developed product use are considered.
- Keywords: phosphogypsum, granulation by pelletizing, composite material structure, asphalt concrete, polyethylene terephthalate, strength, water resistance.
- UDC: 625.855.3:625.861:691.311
- File: Download
COLD MIXES FOR EMERGENCY REPAIR OF ASPHALT CONCRETE PAVEMENTS
-
Doctor of Engineering, Professor
A.P. Lupanov,
Ph. D. (Tech.) A.S. Sukhanov,
Ph. D. (Tech.), Professor V.V. Silkin,
Ph. D. (Tech.), Associated Professor
S.M. Dmitriev
(Moscow Automobile and Road Construction State Technical University (MADI))
Contact information: dmitrsmlist@mail.ru - Abstract: The article dwells upon the study of the influence of granulated reclaimed asphalt pavement on the properties of cold repair mixes. It is revealed that the addition of granulated reclaimed asphalt pavement improves strength properties of cold asphalt concrete repair mixes with a decrease in their slumping.
- Keywords: asphalt concrete, granulated reclaimed asphalt pavement, bitumen, cold repair mixes, economic efficiency, mix slumping.
- UDC: 625.7:625.855.3
- File: Download
TO THE ANNIVERSARY OF THE FAA "ROSDORNIA" FAA "ROSDORNIA" – 30 YEARS
- Abstract: In 2018, the Russian Road Research Institute celebrates its 30th anniversary since its formation.
- File: Download