Water floating single-axis folding self-propelled road high-capacity ground-compacting compactor with adjustable area of contact and stepless regulation of motion speed, frequency and direction of oscillations, and variants of its application

FIELD: construction.

SUBSTANCE: invention relates to the field of devices used for layer-by-layer surface compaction of soils. During operation the compactor can change the area of contact with the ground, steplessly adjust the frequency of oscillations in a wide range, change the direction of the oscillation forces, steplessly change the speed and direction of motion, compact the marshy ground (be able to swim), and also reduce its weight and overall dimensions during transportation. Device consists of filled with gas and liquid flexible shell. Compactor movement is performed by rotation of the liquid inside the shell using the reversible pumps. Rotating fluid, acting through the installed inside the flexible shell buckets, forces the compactor to move along the compacted soil.

EFFECT: proposed is the device for layer-by-layer surface compaction of soils.

21 cl, 26 dwg

 



 

Same patents:

FIELD: construction.

SUBSTANCE: suspended vacuum chamber is made in the form of a flat board equipped with a seal along its entire perimeter, and the source of vacuum creation in the chamber is formed by a combination of straight air valves installed on the board and connecting the chamber cavity with the external space, and a vibration mechanism of reciprocal motion that connects the board and the roller frame. At the same time the vibration mechanism is made in the form of an electromagnet motor, the anchor of which is connected to the board, and the stator - with the roller frame. Besides, in the chamber cavity there is at least one sealing bar installed, which is equal to the width of the board and is mounted on it perpendicularly to the roller motion direction and made, for instance, from heat-resistant rubber with hardness from 50 to 80 Shore units.

EFFECT: simplified design of a vacuum chamber and improved efficiency of its operation.

3 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly, to control over articulated frame to allow motion in two wheel tracks and crossing of wheel axles. Vehicle comprises two parts each being coupled with the other hinge 1. Said hinge 1 comprises four structural elements 4, 5, 6, 7 articulated by four hinges 8, 9, 10, 11 to stay in normal position. At said position, centers of hinged 8, 9, 10, 11 form one plane and closed, in fact, fixed frame. Each of two structural elements 4, 6 forming two opposite side of fixed frame can turn in four hinge joints 8, 9, 10, 11 about rotational axis D1, D2. Said axis is located in normal position if the plane formed by two center of hinges relative to other structural elements 5, 7. One (4) of two rotary structural elements 4, 6 with one (5) of two other structural elements 5, 7, directly interconnected with one (10) of four hinges 8, 9, 10, 11, can turn from normal position relative to two structural elements 4, 7 so that center of hinge 10 jointing said two rotary structural elements 4, 5 can extend beyond the plane formed by centers of hinges in normal position while centers of other hinges 8, 9, 11 do not extend beyond said plane to allow crossing of rotational axes D1, D2 of both hinges 4, 6 relative to each other.

EFFECT: improved maneuverability, increased vehicle length.

25 cl, 15 dwg

FIELD: construction, road engineering.

SUBSTANCE: invention relates to machines for accelerated preparation of groundwork bases in process of winter roads arrangement on swamps, namely to machines used to flatten frozen swampy groundwork bases in Northern conditions. Pneumatic roller used to flatten groundwork bases comprises frame of the first and second stage connected to each other by means of hinged joint, which is used to provide for free rotation of the first stage relative to the second one in process of turns. The first stage is a single-row pneumatic roller, and the second one is a three-row pneumatic roller with pneumatic wheels installed on axles in staggered order so that strips that remain non-flattened with pneumatic wheels of the first row are flattened by pneumatic wheels of the second row, strips that remain non-flattened after passage of pneumatic wheels of the second row are flattened by pneumatic wheels of the third row, and strips that remain non-flattened after passage of the third row pneumatic wheels, are flattened by pneumatic wheels of the fourth row. As pneumatic wheels are installed, the condition shall be observed so that distance between pneumatic wheels is less or equal to half of pneumatic wheel width. Required pressure P at axis of pneumatic roller with specified depth of pneumatic wheels submersion of h, bearing capacity [σ] of peat swampy groundwork base, width of pneumatic wheels B, their number on a single axis n, half of central angle α and coefficient k, which exceeds permissible bearing capacity of swampy surface, is determined by dependence P=B·(R-h)·tgα·n[σ]·k; hydraulic engines are installed on all four axles of pneumatic roller. In front of the first stage of pneumatic roller used to flatten groundwork bases of motor roads there is a planner-leveler installed with the help of hinged joints and hydraulic cylinders. On the frame of the second stage there is equipment installed to generate electric energy, as well as equipment for hydraulic drive and device for adjustment of pressure in tyres.

EFFECT: invention provides for efficiency of flattening process.

1 cl, 6 dwg

FIELD: construction, road engineering.

SUBSTANCE: roll of compaction roller, comprising cylindrical shell fixed on shaft by means of hubs, equipped with through holes evenly arranged on its outer surface, differs by the fact that section of through hole reduces from outer surface of roll shell to inner one, at the same time section of hole that directly adjoins inner surface of shell is arranged as cylindrical, and section that directly adjoins its outer surface is arranged as conical, angle of generatrix of which makes 45°, at the same time, ratio of total area of through holes, on the side of outer surface of shell to its area is accepted in the range of 0.25-0.3, at the same time ratio of hole diametre on the side of outer surface of shell to thickness of layer of rolled asphalt-concrete mixture is accepted in the range of 0.5-0.65. Besides diametre of cylindrical section of through hole does not exceed minimum size of large filler particles. In process of specified device usage contact pressures vary in wide range, which is provided by establishment of power balance in the system "working element - compacted material" at any stage of compaction process due to optimisation of holes and giving them special shape. Besides availability of perforation improves air exhaust from compacted layer and assists in active realignment of mineral particles of asphalt-concrete mix. Besides possibility is provided to reduce relative disturbance force for vibration compaction rollers twice.

EFFECT: possibility is provided to use single compaction roller at all cycles of asphalt-concrete mixtures compaction with thickness of 40-70 mm, and also possibility is provided in order to visually detect completion of works aimed at compaction of asphalt-concrete mixtures and reduction of wave formation in asphalt-concrete mixture.

2 cl, 6 dwg

FIELD: transport.

SUBSTANCE: roller for flattening road bases contains frame of the first stage and frame of the second stage interconnected using articulated joint through which free turning of the first stage relative to the second stage is provided during cornering. The first stage represents double-row pneumatic roller with pneumatic wheels mounted on axles chequerwise so that strips left not flattened by pneumatic wheels of the first row are flattened by pneumatic wheels of the second row. On the frame of the second stage using articulated joints and hydraulic cylinders and via axle steel drum with profile belts mounted on circular surface of drum is installed. Transitions of profile belts working surfaces and steel drum frontal edges have rounded shape and stretch factor of root plants γ is determined as relation of length embracing circular working surfaces of profile belts equal to 2πτ+2 BC and length of profile belts base equal to 4r in cross section. Relation of sizes of heat exchange through frozen water surfaces in profile strips is determined by optimal relation of ε factor: distances between centrelines of profile belts 1 and radii of profile belts r in cross section ε=1/r=8. In front of the first stage of combination roller the planner-leveller is installed using articulated joints and hydraulic cylinders. On the frame of the first stage equipment for hydraulic drive is installed, on the frame of the second stage equipment for electric and heat power generation is installed.

EFFECT: increase in quality and strength of prepared boggy base surface for winter snow roads, in efficiency of flattening process and acceleration of freezing process of flattened boggy surface, simplification of construction design, lowering manufacturing cost and roller operation costs.

1 cl, 6 dwg

FIELD: construction, road engineering.

SUBSTANCE: invention relates to compacting equipment, in particular to rollers for compaction of soils and other powdery materials. Roller for compaction of soils and other powdery materials with density that corresponds to their density limit includes frame and roll. Frame is arranged with the possibility of displacement along compacted layer by means of displacement mechanism arranged beyond the limits of rolled layer for longitudinal displacement of roller roll along compacted layer. Roll is mounted on frame with the possibility of its suspension over compacted layer so that its lower generatrix just touches upper design surface of compacted layer.

EFFECT: invention provides for even density along whole thickness of compacted layer with direct control of compaction quality in process of rolling.

1 cl, 5 dwg

FIELD: construction, road engineering.

SUBSTANCE: invention is related to methods for compaction of soils and other powdery materials by rolling with compactor rolls. Invention is based on objective to compact powdery material with density that corresponds to ultimate strength by compactor rolls. For this purpose in method of powdery material layer compaction by rolling, which consists in rolling of previously poured loose layer of powdery material by compactor rolls, loose layer of powdery material is filled between lateral sides of rigid enclosure, height of which is equal to thickness of compacted layer, and compactor rolls are rolled on rigid enclosure that limits compacted zone, at the same time compacted powdery material is continuously filled in zone in front of rolls along with their travel in layer that is higher than thickness of compacted layer by 1/20-1/50 of roll diametre until powdery material starts to be pressed back in wave in front of rolls, afterwards material filling in front of rolls is stopped, and continuing to move rolls along enclosure, created wave is caught up with at the end of enclosure, afterwards rolls moving is stopped. In suggested method always, without any control, strength of powdery material under compactor rolls will correspond to specific pressure of roll at powdery material, but may not exceed ultimate strength. Achievement of ultimate strength is characterised by extrusion of powdery material from under roll.

EFFECT: compaction of powdery material until ultimate strength.

21 cl, 13 dwg

FIELD: construction, road engineering.

SUBSTANCE: invention is related to machines for preparation of foundations in process of winter roads arrangement on swamps, namely to machines for sagging with creation of holes in frozen, swamped foundation in northern conditions. In order to improve efficiency, combined aggregate for preparation of foundations for ice roads on swamps comprises the first and second stages, arranged on frames, which are connected to each other by means of hinged joint. At the same time the first stage represents a working element that consists of double-axis pneumatic roller, axes of which are mounted on the frame of the first stage with the help of four hydraulic cylinders. Pneumatic wheels on axes are installed in staggered order so that space that remained non-sagged with the pneumatic wheels of the first axis is sagged with pneumatic wheels of the second axis. The second stage represents a working element in the form of two drums with movable spurs, installed on the second stage frame. Pneumatic wheels are equipped with their pressure control system. Control of specific pressure value in pneumatic wheels upon swamp foundation is provided by means of ballast mass variation at the first stage, and specific pressure of drums with movable spurs is controlled by means of ballast mass variation at the second stage.

EFFECT: improved efficiency in preparation of foundations for arrangement of winter roads on swamps.

1 cl, 6 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to machines for preparation of basis for construction of winter roads on swamps, particularly to machines for sinking with superficial reinforcement of frozen swampy basis in north conditions. Aggregation for sinking with reinforcement of basis for winter roads on swamps contains frame of the first stage and frame of the second stage connected to each other by means of joint, through which at rotations it is provided free rotation of the first stage relative to the second. Additionally the first stage corresponds single-row road roller with air castors, the second stage of aggregate consists of two steel drums and one road roller between them, on surfaces of the first and the second steel drums there are mounted elongated projections of triangular shape. To each other by angular deflection drums are connected by lamellar chain drive so, that elongated project of the second drum are fed on base of road bed into midsection between rows of grooves against impression of projections of the first drum with shift in the longitudinal line for half of length of elongated projection. On axis of the first and the second steel drums there are mounted hydraulic actuators. On frame of the first stage it is installed equipment for hydraulic actuator. On frame of the second stage it is installed equipment for electric and heating power production.

EFFECT: invention is directed to increasing of quality and durability of prepared surface of swamped basis for winter roads, effectiveness of sinking process and acceleration of freezing process of powder with snow, sinking swamped surface.

1 cl, 3 dwg

FIELD: construction.

SUBSTANCE: balance weight is placed on cross bar of the frame or into the cavity of the cross bar of the frame of each of the sections of the basic compactor reaching total weight of the compactor equal to 15 t; for further increasing of the compactor's weight with balance weights on each of the sections of 15 t up to 17 t metal curb is placed around the cylindrical body of the oscillating roll mill, width whereof equals that of the sheet of cylindrical body of the roll mill; for further increase of the weight of compactor with balance weights on each of the sections and metal curb on the body of the roll mill from 17 t to 19 t additional balance weight is loaded onto cross bar of the frame or into the cavity of the cross bar of each of the sections of the basic compactor; for further weight increase of the compactor with additional balance weights on each of the sections and metal curb on the body of the roll mill and weight of 17 t to 21 t, metal curb is replaced with metal curb, thickness whereof increases thickness of the sheet of cylindrical body of the roll mill, thickness of the sheet of lateral parts of the section frame, bearing roll mill and then additional balance weight is loaded on the cross bar of the frame or into the cavity of the cross bar of the frame of each of the sections of the basic compactor up to weight of 21 t.

EFFECT: new methods of loading roll mills of soil compactors and of structured arrangement of model range of soil compactors are obtained.

3 cl, 5 dwg

FIELD: transport.

SUBSTANCE: roller for preparation of base for temporary winter roads at swamp areas contains frame, working attachment made as drum with lugs (3) installed on frame containing heat generator connected with drum. Between lugs (3) and parallel to rows of lugs (3) on drum work surface there are rubber-rope strip bands (22) covered by one-piece rubber-rope band. Lugs (3) are installed through one-piece rubber-rope band on sectors of drum work surface. Area of each sector is equal to bearing area of lug (3) and height of each sector is equal to thickness of rubber-rope strip band (22) having ropes and channels positioned parallel to its longitudinal axis. One-piece rubber-rope band is positioned in parallel to circumferences forming drum and it has some ropes perpendicular to ropes of rubber-rope strip band (22).

EFFECT: increase of efficiency, speed, quality and reliability of making temporary winter roads.

5 dwg

FIELD: construction, equipment.

SUBSTANCE: invention relates to transport machine construction engineering. The roller support system of compactor for utilising domestic and industrial wastes at polygons is constructed so that it can be connected to compactor framework. The system contains the first flat flange coupled with the transverse partition of cylindrical roller body. The second flat flange has kinematical connection with the first flange. It is intended for fixing drive mechanism being in the shape of hydraulic drive gear. Flanges are directed towards each other by their flat sides and distanced from each other. The first flat flange is linked with the second flat flange by two spherical supports located diametrically. Each spherical support is implemented with spherical bearing located in the seat of the first flat flange. The seat is realised with one side being spherical in order to interact with spherical element of spherical bearing situated on the cylindrical part of the shaft. The shaft flange is fastened to the surface of the second flange. The first flat flange is implemented so that it can be connected to compactor framework by means of two spherical supports arranged diametrically. Each spherical supports is represented with spherical bearing being in the seat of the first flat flange. The seat is made with one side being spherical in order to interact with spherical element of spherical bearing located in the central part of shaft. The shaft flange is intended for fastening to the compactor framework. The surface crossing spherical bearings of the first flat element designed to contact with the second flat flange, is perpendicular to the surface crossing spherical bearings of the same flange with roller flanges being designed to contact with compactor framework. The length of shaft, where spherical element of spherical connection bearing with compactor framework is situated, exceeds the distance between the flat flanges.

EFFECT: improvement of process compactor characteristics designed for domestic and industrial wastes.

5 dwg

FIELD: transport.

SUBSTANCE: proposed roll wit movable lugs to prepare beds for winter roads on marshes incorporates frame (1), tools representing first drum (2) and second drum (3) with movable lugs fitted onto the said frame. Frame (1) supports also two heat generators (5) linked up with the first 2 and second 3 drums, electric power station (8) and hydraulic pump unit (10) with tank for hydraulic fluid (11). Drum (2) with movable lugs (4) is arranged first in the central part of frame (1) with the help of two swivel links fitted on the front supports (13) and two hydraulic cylinders (14) fastened on the upper beam (15) to revolve about horizontal axis of cam shaft (16) of the first drum (2). Drum (3) with movable lugs (4) is arranged second at the central part of frame (1) with the help of two swivel links (17) fitted on the rear supports (18) and two hydraulic cylinders (19) fitted on the upper beam (15) to revolve about horizontal axis of cam shaft (16) (fig. 3) of the second drum (3). First (2) and second (3) drums are covered by casings (20) with their inner spaces communicating with heat generators (5) via branch pipes (21) furnished with turbo compressors. The roll frame (1) rests upon the marsh road surface (22) by two front widened pneumatic low-pressure wheels (23) and two similar rear wheels (23). The first (2) and second (3) drums get additional drive allowing changing their relative position in turning with the help of chain gear (24) arranged between the aforesaid drums, (fig.3), chain gear (25) (fig.3). Second drum (3) gets additional drive from rear low-pressure wheels (23), (fig.1). Note also that the rear low-pressure wheels (23) receive additional driving force from hydraulic prime movers (26). The proposed roll is ganged up with the T-170 M1.01-type marsh caterpillar with the help of coupler (27). Two drums with movable lugs are mounted on the roll frame, the drums being hydraulically driven from rear wheels. The cam shafts with special-section cams and round lugs with sharpened tip of the working surface are used.

EFFECT: ruling out sticking of soil between lugs, forcing road surface material by lug tips out of road surface on their coming out of holes, accurate positioning of holes, higher quality of road bed leveling.

9 dwg

FIELD: construction.

SUBSTANCE: balance weight is placed on cross bar of the frame or into the cavity of the cross bar of the frame of each of the sections of the basic compactor reaching total weight of the compactor equal to 15 t; for further increasing of the compactor's weight with balance weights on each of the sections of 15 t up to 17 t metal curb is placed around the cylindrical body of the oscillating roll mill, width whereof equals that of the sheet of cylindrical body of the roll mill; for further increase of the weight of compactor with balance weights on each of the sections and metal curb on the body of the roll mill from 17 t to 19 t additional balance weight is loaded onto cross bar of the frame or into the cavity of the cross bar of each of the sections of the basic compactor; for further weight increase of the compactor with additional balance weights on each of the sections and metal curb on the body of the roll mill and weight of 17 t to 21 t, metal curb is replaced with metal curb, thickness whereof increases thickness of the sheet of cylindrical body of the roll mill, thickness of the sheet of lateral parts of the section frame, bearing roll mill and then additional balance weight is loaded on the cross bar of the frame or into the cavity of the cross bar of the frame of each of the sections of the basic compactor up to weight of 21 t.

EFFECT: new methods of loading roll mills of soil compactors and of structured arrangement of model range of soil compactors are obtained.

3 cl, 5 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to machines for preparation of basis for construction of winter roads on swamps, particularly to machines for sinking with superficial reinforcement of frozen swampy basis in north conditions. Aggregation for sinking with reinforcement of basis for winter roads on swamps contains frame of the first stage and frame of the second stage connected to each other by means of joint, through which at rotations it is provided free rotation of the first stage relative to the second. Additionally the first stage corresponds single-row road roller with air castors, the second stage of aggregate consists of two steel drums and one road roller between them, on surfaces of the first and the second steel drums there are mounted elongated projections of triangular shape. To each other by angular deflection drums are connected by lamellar chain drive so, that elongated project of the second drum are fed on base of road bed into midsection between rows of grooves against impression of projections of the first drum with shift in the longitudinal line for half of length of elongated projection. On axis of the first and the second steel drums there are mounted hydraulic actuators. On frame of the first stage it is installed equipment for hydraulic actuator. On frame of the second stage it is installed equipment for electric and heating power production.

EFFECT: invention is directed to increasing of quality and durability of prepared surface of swamped basis for winter roads, effectiveness of sinking process and acceleration of freezing process of powder with snow, sinking swamped surface.

1 cl, 3 dwg

FIELD: construction, road engineering.

SUBSTANCE: invention is related to machines for preparation of foundations in process of winter roads arrangement on swamps, namely to machines for sagging with creation of holes in frozen, swamped foundation in northern conditions. In order to improve efficiency, combined aggregate for preparation of foundations for ice roads on swamps comprises the first and second stages, arranged on frames, which are connected to each other by means of hinged joint. At the same time the first stage represents a working element that consists of double-axis pneumatic roller, axes of which are mounted on the frame of the first stage with the help of four hydraulic cylinders. Pneumatic wheels on axes are installed in staggered order so that space that remained non-sagged with the pneumatic wheels of the first axis is sagged with pneumatic wheels of the second axis. The second stage represents a working element in the form of two drums with movable spurs, installed on the second stage frame. Pneumatic wheels are equipped with their pressure control system. Control of specific pressure value in pneumatic wheels upon swamp foundation is provided by means of ballast mass variation at the first stage, and specific pressure of drums with movable spurs is controlled by means of ballast mass variation at the second stage.

EFFECT: improved efficiency in preparation of foundations for arrangement of winter roads on swamps.

1 cl, 6 dwg

FIELD: construction, road engineering.

SUBSTANCE: invention is related to methods for compaction of soils and other powdery materials by rolling with compactor rolls. Invention is based on objective to compact powdery material with density that corresponds to ultimate strength by compactor rolls. For this purpose in method of powdery material layer compaction by rolling, which consists in rolling of previously poured loose layer of powdery material by compactor rolls, loose layer of powdery material is filled between lateral sides of rigid enclosure, height of which is equal to thickness of compacted layer, and compactor rolls are rolled on rigid enclosure that limits compacted zone, at the same time compacted powdery material is continuously filled in zone in front of rolls along with their travel in layer that is higher than thickness of compacted layer by 1/20-1/50 of roll diametre until powdery material starts to be pressed back in wave in front of rolls, afterwards material filling in front of rolls is stopped, and continuing to move rolls along enclosure, created wave is caught up with at the end of enclosure, afterwards rolls moving is stopped. In suggested method always, without any control, strength of powdery material under compactor rolls will correspond to specific pressure of roll at powdery material, but may not exceed ultimate strength. Achievement of ultimate strength is characterised by extrusion of powdery material from under roll.

EFFECT: compaction of powdery material until ultimate strength.

21 cl, 13 dwg

FIELD: construction, road engineering.

SUBSTANCE: invention relates to compacting equipment, in particular to rollers for compaction of soils and other powdery materials. Roller for compaction of soils and other powdery materials with density that corresponds to their density limit includes frame and roll. Frame is arranged with the possibility of displacement along compacted layer by means of displacement mechanism arranged beyond the limits of rolled layer for longitudinal displacement of roller roll along compacted layer. Roll is mounted on frame with the possibility of its suspension over compacted layer so that its lower generatrix just touches upper design surface of compacted layer.

EFFECT: invention provides for even density along whole thickness of compacted layer with direct control of compaction quality in process of rolling.

1 cl, 5 dwg

FIELD: transport.

SUBSTANCE: roller for flattening road bases contains frame of the first stage and frame of the second stage interconnected using articulated joint through which free turning of the first stage relative to the second stage is provided during cornering. The first stage represents double-row pneumatic roller with pneumatic wheels mounted on axles chequerwise so that strips left not flattened by pneumatic wheels of the first row are flattened by pneumatic wheels of the second row. On the frame of the second stage using articulated joints and hydraulic cylinders and via axle steel drum with profile belts mounted on circular surface of drum is installed. Transitions of profile belts working surfaces and steel drum frontal edges have rounded shape and stretch factor of root plants γ is determined as relation of length embracing circular working surfaces of profile belts equal to 2πτ+2 BC and length of profile belts base equal to 4r in cross section. Relation of sizes of heat exchange through frozen water surfaces in profile strips is determined by optimal relation of ε factor: distances between centrelines of profile belts 1 and radii of profile belts r in cross section ε=1/r=8. In front of the first stage of combination roller the planner-leveller is installed using articulated joints and hydraulic cylinders. On the frame of the first stage equipment for hydraulic drive is installed, on the frame of the second stage equipment for electric and heat power generation is installed.

EFFECT: increase in quality and strength of prepared boggy base surface for winter snow roads, in efficiency of flattening process and acceleration of freezing process of flattened boggy surface, simplification of construction design, lowering manufacturing cost and roller operation costs.

1 cl, 6 dwg

FIELD: construction, road engineering.

SUBSTANCE: roll of compaction roller, comprising cylindrical shell fixed on shaft by means of hubs, equipped with through holes evenly arranged on its outer surface, differs by the fact that section of through hole reduces from outer surface of roll shell to inner one, at the same time section of hole that directly adjoins inner surface of shell is arranged as cylindrical, and section that directly adjoins its outer surface is arranged as conical, angle of generatrix of which makes 45°, at the same time, ratio of total area of through holes, on the side of outer surface of shell to its area is accepted in the range of 0.25-0.3, at the same time ratio of hole diametre on the side of outer surface of shell to thickness of layer of rolled asphalt-concrete mixture is accepted in the range of 0.5-0.65. Besides diametre of cylindrical section of through hole does not exceed minimum size of large filler particles. In process of specified device usage contact pressures vary in wide range, which is provided by establishment of power balance in the system "working element - compacted material" at any stage of compaction process due to optimisation of holes and giving them special shape. Besides availability of perforation improves air exhaust from compacted layer and assists in active realignment of mineral particles of asphalt-concrete mix. Besides possibility is provided to reduce relative disturbance force for vibration compaction rollers twice.

EFFECT: possibility is provided to use single compaction roller at all cycles of asphalt-concrete mixtures compaction with thickness of 40-70 mm, and also possibility is provided in order to visually detect completion of works aimed at compaction of asphalt-concrete mixtures and reduction of wave formation in asphalt-concrete mixture.

2 cl, 6 dwg

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