CN109763397A - Embedded structure bituminous pavement and construction method - Google Patents
Embedded structure bituminous pavement and construction method Download PDFInfo
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- CN109763397A CN109763397A CN201910179930.0A CN201910179930A CN109763397A CN 109763397 A CN109763397 A CN 109763397A CN 201910179930 A CN201910179930 A CN 201910179930A CN 109763397 A CN109763397 A CN 109763397A
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Abstract
The present invention relates to a kind of inserted type asphalt pavement structure, in particular to one kind is able to bear heavy traffic, the good asphalt pavement structure of Rut resistance effect.Asphalt surface course is by upper, in, cutting optimal composition, the reticular structure that cutting optimal is combined by geonet and concrete rib block, between the concrete rib block gap and geonet of the asphalt insertion cutting optimal of middle surface layer, concrete rib block has higher intensity and structural stability, regular shaped bottom surface can provide biggish loading end, reduce the pressure to base, cutting optimal and middle surface layer are mutually chimeric, constitute the asphalt pavement structure that double-layer structure is mutually inlayed, the limitation that the concrete rib block of cutting optimal is embedded in by geonet drawing and middle surface layer asphalt, displacement and deformation are less prone under the action of heavy traffic load, there is thicker asphalt at the gap of concrete rib block, the reflection of the contraction fissure of base can be resisted, the bearing capacity of bituminous pavement is improved in terms of structure construction.
Description
Technical field
The present invention relates to a kind of embedded structure bituminous pavements, belong to highways and urban roads engineering field, in particular to one
Kind is able to bear heavy traffic, the good asphalt pavement structure of Rut resistance effect.
Background technique
Bituminous pavement belongs to Flexible Pavement Structure, has many advantages, such as that driving is comfortable, noise is small, is widely used in highway and city
City's road.It is consisted of three parts according to regulation, asphalt pavement structural layer in " bituminous pavement design for highway specification ": surface layer, base
And underlayment.Road surface will not only bear the effect of wheel load, and be influenced by factor of natural environment, due to lotus of driving a vehicle
The influence with atmospheric factor road pavement is carried, is generally gradually weakened with depth, thus road surface is usually multilayered structure, by product
The good material-paving of matter on the biggish upper layer of stress, the slightly poor material-paving of quality in the lesser lower layer of stress, so as to form
The material that different size and requirement are used on roadbed, is laid with the pavement structure form of underlayment, base and surface layer respectively.Surface layer
It is directly generated true after the vertical force of receiving traffic load, horizontal force and vehicle body positioned at the top layer of entire pavement structure
The repeated action of suction power, while by the adverse effect of rainfall and temperature change maximum, it is most directly to reflect pavement usage
The level of performance.Therefore, compared with other levels, surface layer answers structural strength, rigidity and height temperature stability with higher, and
And it is wear-resisting, waterproof, surface should also have good skid resistance and flatness.The surface layer of general bituminous pavement is by two, three layers
Composition, superficial layer claim wearing course, for resisting horizontal force and abrasion caused by suction after wheel with loosely, bitumastic can be used broken
Stone mixture or bituminous concrete making, middle surface layer, cutting optimal be main surface layer, it be guarantee surface layer intensity major part, one
As use bituminous concrete making.
The bituminous pavement of the prior art, underlayment often use cement stabilizing or lime stabilization fine granules, as cement stabilizing aggregate chips,
Rendzinas etc., base often use cement stabilizing Coarse Aggregate, such as cement stabilized macadam.The number of plies of asphalt surface course is true according to vehicular load
Fixed, general light traffic, medium traffic use two layers of surface layer structure, and heavy traffic, very heavy traffic use three layers of surface layer structure.Each layer knot
The thickness of structure layer, which needs to be calculated according to automobile total axle-load equivalent, to be determined, heavy traffic, very heavy traffic road generally use it is thicker
Structure sheaf and the higher material of intensity.In the case that the strength of materials is certain, increasing thickness is to improve having for pavement structural strength
Effect approach, but asphalt surface course is blocked up also brings along some drawbacks, and asphalt pavement structure is a kind of flexible material, is passed through using rubble
The mixture formed after asphalt mixing is a kind of combination of discrete material, and building stones are mutually inlayed, and binds structure by pitch between building stones
At the structure sheaf of carrying, structure sheaf vertical bearing capacity with higher, but there is no restraining force between building stones, load level power
Ability is poor.Ground surface material flexible can deform under the action of load, when load is more than the limit that can bear, stone
Material is subjected to displacement, and road surface track occurs, gathers around the diseases such as packet, and in the intersection of urban road, this phenomenon is more serious.It goes up a slope
Heavy vehicle climbing wheel road pavement in section generates biggish horizontal friction force, and the ability that flexible pavement bears horizontal force is poor,
Also pavement damage is easily caused.Building stones in asphalt are downwardly applied to transmitting strength under the action of load, and building stones are
Irregular shape, floor space is smaller, generates biggish pressure to lower part, the building stones of cutting optimal cusped edge are pressed in base, are easy to make
It is damaged at base, causes asphalt surface course damaged.
In addition, the common cement stabilized type base of the prior art, belongs to semirigid structure, there are some technological deficiencies: by
In the influence that temperature is expanded with heat and contract with cold, the temperature shrinkage fracture that cement stabilized type base generates is inevitable, can make to bituminous pavement
At reflection crack, become influence Road Service Life one of main factor.In order to reduce cement stabilized type structure sheaf
Contraction fissure, base's cement consumption is severely limited, so that the low shock resistance fatigue of this structural strength is restricted.Currently,
It is also widely used using asphalt surface course Re-paving transformation concrete road surface, but base of the concrete road surface as bituminous pavement, it is former
Some transverse joints and longitudinal joint reflex to asphalt surface course, cause asphalt surface course crack, are that old concrete road overlay pitch is insoluble
Technical problem.
The particles of aggregates diameter for increasing surface layer asphalt, increases the thickness of asphalt surface course, asphalt surface course can be improved
Bearing capacity, the reflection of contraction fissure can be resisted, but too thick surface layer structure stability accordingly lowers, and can bring other instead
The cost of disease, asphalt is higher, all will not increase simply thickness of bituminous surface to solve heavy traffic in Practical Project
The problem of damage of lower bituminous pavement.
Summary of the invention
The object of the present invention is to provide a kind of embedded structure bituminous pavements.Mainly by under underlayment, base, sealing, pitch
Surface layer, asphalt uplayer composition in surface layer, pitch, the reticular structure that cutting optimal is combined by geonet and concrete rib block,
Between the concrete rib block gap and geonet of the asphalt insertion cutting optimal of middle surface layer, concrete rib block is equivalent to by
The bulky grain aggregate of surface layer asphalt and sealing package, there is higher intensity and structural stability, cutting optimal and middle surface layer
It is mutually chimeric, constitute the asphalt pavement structure that double-layer structure is mutually inlayed.The beneficial effect is that: concrete rib block has higher strong
Degree, regular shaped bottom surface can provide biggish loading end, reduce the pressure to base, and the concrete rib block of cutting optimal is native
The limitation of work net drawing and the insertion of middle surface layer asphalt, is less prone to displacement and deformation under the action of heavy traffic load,
There is thicker asphalt at the gap of concrete rib block, the reflection of the contraction fissure of base can be resisted, is constructed from structure
The bearing capacity of aspect raising bituminous pavement.Cutting optimal substitutes most of asphalt using concrete precast block, increases strong
It spends and cost reduction, middle surface layer rolls simultaneously with cutting optimal, reduces the process that one of surface layer rolls, reduces operating expenses.
The present invention is realized by the following technologies: a kind of embedded structure bituminous pavement, mainly by underlayment 1, base 2,
Sealing 3, cutting optimal 4, middle surface layer 5, upper layer 6 form.Layer 4, middle surface layer 5, upper layer 6 form asphalt surface course below described,
Wherein cutting optimal 4 and middle surface layer 5 are mutually chimeric, and cutting optimal 4 is made of Structure Network 9 and insert 10, and Structure Network 9 is by geonet 7
It is combined with rib block 8, Structure Network 9 and the layer 4 below of insert 10 are same level, and insert 10 is in insertion cutting optimal 4
Asphalt between 8 gap of rib block, insert 10 and the structure of middle surface layer 5 are linked together, and are the drips of same particle size
The lower part of green mixture, insert 10 is in contact and binds with 3 surface of sealing, and 3 lower part of sealing and base 2 bind, face in composition
5 asphalt of layer are embedded in 4 rib block of cutting optimal, 8 gap, the inserted type that rib block 8 is wrapped up by middle 5 asphalt of surface layer and sealing 3
Asphalt pavement structure.
8 circular upper part of rib block is up-small and down-big positive eight arris frustum, and lower part is positive eight arris cylinders, upper top surface
It is octagon with bottom surface, upper side is 8 inclined trapezoidal faces, and lower side is eight rectangular surfaces, and trapezoidal faces are inclined
Angle α is 30 °~45 °, and two opposite side spacing W of the bottom surface of rib block 8 are 1~1.5 times of 4 thickness h 3 of cutting optimal, lower edge height b
It is 0.5~1.5 times of middle 5 asphalt maximum ballast grain sizes of surface layer, rib block 8 is not less than C35 concrete using strength grade
It is prefabricated to form.The geonet 7 is bidirectional glass fiber TGXG, and mesh is middle 5 asphalt maximum rubble of surface layer
1~1.5 times of partial size, bidirectional stretch intensity are 30~120kN/m.
The Structure Network 9 is in length and breadth uniformly by the mesh of square arrangement setting rib block 8 on geonet 7, and geonet 7 exists
It is anchored at when prefabricated rib block 8 in the concrete of rib block 8, is mutually pulled between rib block 8 by geonet 7, limit rib block 8 in vapour
Horizontal displacement under vehicle load action；Gap V is middle 5 asphalt of surface layer between two adjacent rib blocks 8 of square arrangement
1~1.5 times of maximum ballast grain sizes, Structure Network 9 are the finished sheet material that factory is fabricated to, the edge geonet of each length of a film
7 stretch out the length of 8 one gap V of rib block, and the stacking of 9 finished sheet material of Structure Network piles up multilayer using plastic baling band beam jail.
The Structure Network 9 is laid on sealing 3, and a two face wedge shape cavities 11 are formed between two adjacent rib blocks 8,
A four sides conical cavity 12 is formed between four rib blocks 8, insert 10 is embedded in wedge-shaped sky when 5 asphalt of surface layer in making
In chamber 11 and pyramid shape cavity 12, asphalt is cohered through the gap of the mesh insertion rib block 8 of geonet 7 with base 3
Together.
The construction method of embedded structure bituminous pavement, underlayment 1, base 2, the construction of upper layer 6 and conventional pitch road surface
Essentially identical, sealing 3, cutting optimal 4 and the middle surface layer 5 is different from conventional asphalt pavement construction method, embedded structure drip
The construction method step on green road surface is as follows:
A. roadbed, making roadbed, layered rolling underlayment 1 and base 2 are rolled as conventional pavement construction.
B. priming oil is uniformly dispensed in base 2, priming oil permeates completely, and pave sealing 3 in time after moisture evaporation, sealing
3 use emulsified asphalt slurry seal, and with slurry seal spreading machine, by slurry seal material, equably spread is in base 2, spreading machine
At the uniform velocity advanced with the speed of 1.5~3.0km/h, spread thickness control is in 5~10mm.
C. 9 sheet material of Structure Network is laid on sealing 3,9 sheet material of Structure Network that stacking is piled up is transported to wait spread using fork truck
Scene, hand fit are laid with, and first laterally spread from the side of road to the other side, and rib block 8 is apart from 20~30 milli of kerbstone at side
Meter, 20~30 millimeters of gap is reserved between the transverse lap control rib block 8 of sheet material, the rib block 8 between sheet material linking is mutually right
It answers, dismisses the extra rib block 8 of Structure Network 9 at paving to the other side kerbstone of road；One width is used as benchmark after laterally completing, subsequent
Structure Network 9 laterally longitudinal can spread simultaneously, 20~30 millimeters of gap is reserved between 9 portraitlandscape sheet material of Structure Network, using Buddhist nun
Imperial tied silk fastens the geonet 7 that two face sheet materials connect every 300~600 millimeters, cuts extra tied silk, connects Structure Network 9
It is integral, it is laid with the Structure Network 9 that corresponding portion is cropped when sheet material encounters inspection shaft and inlet for stom water.
D. Structure Network 9 roll one time using road roller, be mounted in rib block 8 in sealing 3, wedge shape cavity 11 and cone
The position sealing 3 of shape cavity 12 is raised slightly.
E. bonding oil is uniformly dispensed on Structure Network 9.
F. at roadside and the corner parts at inspection shaft edge, first with the asphalt with middle 5 same particle size of surface layer
The edge for filling the outside of rib block 8, using hand rammer tamp to 8 either flush of rib block.
G. the empty paving coefficient determining according to test, pave middle 5 bituminous concrete mixture of surface layer, and wedge shape is considered as when paving
The dosage of volume shared by cavity 11 and conical cavity 12, wedge shape cavity 11 and conical cavity 12 are filled out by bituminous concrete mixture
It fills, the top of Structure Network 9 has also paved asphalt simultaneously.
H. 5 asphalt of surface layer in steamroller is adopted, while rolling in wedge shape cavity 11 and conical cavity 12
Asphalt under the rolling of road roller dense extrusion, surface layer 5 is embedded in the insert 10 of cutting optimal 4 in formation, rib block 8
Surrounding is embedded into body 10 and tightly wraps, and for the aggregate of asphalt in the mesh of geonet 7, insert 10 penetrates structure
Net 9 is bonded together with sealing 3.
I. bonding oil is uniformly dispensed in middle surface layer 5.
J. pave 6 bituminous concrete mixture of upper layer.
K. 6 bituminous concrete of steamroller upper layer is adopted.
The present invention starts with from the composition of pavement structure construction, plays layer 4 and middle surface layer 5 below carrying to surface layer and changes
Into, by this two layers it is mutually chimeric mutually restrain together, the displacement deformation reduced under load action destroys.Sealing 3, cutting optimal 4,
Middle surface layer 5 can be considered that one layer of bituminous texture layer, rib block 8 can be considered the aggregate being wrapped in pitch, and 8 top of rib block uses inclined surface
Can be to avoid corner damage, the wedge shape cavity 11 and conical cavity 12 that inclined surface is formed be fallen under load action, filled bitumen mixes
It is more more embedding tighter under the rolling of road roller after material, rib block 8 by the extruding of the drawing of geonet 7 and insert 10, by brake and
The effect of upward slope wheel horizontal force, be not in aggregate be displaced to be formed gather around hired car rut phenomenon.Rib block 8 has larger smooth ground,
It is embedded in sealing 3, under the load action of upper wheel, base 2 is passed down to by rib block 8, big loading end subtracts significantly
The small pressure to base 2, avoids the stress destruction of base 2.Base's cement stabilizing material contraction fissure, the rib block of larger bottom surface
8 are covered in base 2 by sealing 3, and the contraction fissure of base 2 cannot be reflected into middle surface layer 5 and upper layer 6, rib by rib block 8
The insert 10 that gap between block 8 is compacted is filled, and thickness is thicker, is pulled between rib block 8 by geonet 7, is had stronger
Stress absorption acts on, and 2 contraction fissure of base between rib block 8 can not also reflex to upper layer 6.Therefore, the cement stabilizing of base 2
Material can relax and standardize limitation to cement consumption, increase cement consumption, improve the intensity of base, to extending heavy traffic, extra heavy
There is important meaning in traffic route service life.The present invention can also be used two layers of surface layer, cancel upper layer, directly use in surface layer and
Cutting optimal is chimeric, the road as pavement abrasion layer, for medium traffic and light-duty Traffic volume level.
Detailed description of the invention
Fig. 1 is pavement structure figure of the present invention；
Fig. 2 is rib block plan view；
Fig. 3 is rib block elevation；
Fig. 4 is Structure Network plan view；
Fig. 5 is Structure Network elevation (A-A of Fig. 4 is cutd open)；
Fig. 6 is wedge shape cavity drawing (B-B of Fig. 4 is cutd open)；
Fig. 7 is trapezoid space drawing (C-C of Fig. 4 is cutd open)；
Fig. 8 is the insert drawing of wedge shape；
Fig. 9 is trapezoidal insert drawing.
In figure: 1- underlayment, 2- base, 3- sealing, surface layer in 4- cutting optimal, 5-, 6- upper layer, 7- geonet, 8- rib
Block, 9- Structure Network, 10- insert, 11- wedge shape cavity, 12- conical cavity.
Specific embodiment
In order to which those skilled in the art more fully understand the present invention, the present invention is made further in conjunction with FIG. 1 to FIG. 9
Bright, the content that embodiment refers to not is limitation of the invention.
The present invention starts with from the composition of pavement structure construction, plays layer 4 and middle surface layer 5 below carrying to surface layer and changes
Into, by this two layers it is mutually chimeric mutually restrain together, the displacement deformation reduced under load action destroys.Embedded structure asphalt road
Face is mainly made of underlayment 1, base 2, sealing 3, cutting optimal 4, middle surface layer 5, upper layer 6, and pavement structure figure of the present invention is shown in figure
1.Cutting optimal 4, middle surface layer 5, upper layer 6 form asphalt surface course, and wherein cutting optimal 4 is mutual chimeric with middle surface layer 5, cutting optimal 4 by
Structure Network 9 and insert 10 form, and Structure Network 9 is combined by geonet 7 and rib block 8, and Structure Network 9 and insert 10 are below
Layer 4 is same level, and insert 10 is to be embedded in asphalt positioned at 8 gap of rib block between in cutting optimal 4, insert 10 and
The structure of middle surface layer 5 is linked together, and is the asphalt of same particle size, and the lower part of insert 10 is in contact with 3 surface of sealing
And bind, 3 lower part of sealing and base 2 bind, and 5 asphalt of surface layer is embedded in 4 rib block of cutting optimal, 8 gap, 8 quilt of rib block in composition
The inserted type asphalt pavement structure that middle 5 asphalt of surface layer and sealing 3 wrap up.
8 circular upper part of rib block is up-small and down-big positive eight arris frustum, and lower part is positive eight arris cylinders, upper top surface and bottom
Face is octagon, and upper side is 8 inclined trapezoidal faces, and lower side is eight rectangular surfaces, and the inclination alpha of trapezoidal faces is
30 °~45 °, 8 top of rib block uses inclined surface, can be to avoid corner damage is fallen under load action, and the wedge shape that inclined surface is formed is empty
Chamber 11 and conical cavity 12, it is more more embedding tighter under the rolling of road roller after filled bitumen mixture, be conducive to the pressure of insert 10
It is real.Two opposite side spacing W of the bottom surface of rib block 8 are 1~1.5 times of 4 thickness h 3 of cutting optimal.8 plan view of rib block is shown in Fig. 2, rib
Block elevation is shown in Fig. 3.It being provided according to related specifications, the suitable depth of middle grain formula AC-20 asphalt concrete structure layer is 60~
100mm, the suitable depth of coarse grain formula AC-25 asphalt concrete structure layer are 80~120mm, the manufacture of integrated structure net 9, fortune
Factors, two opposite side spacing W of bottom surface of rib block 8 such as defeated, construction take 80~160mm to be advisable, and it is little to control width-thickness ratio W/ h3
In 2, lesser width-thickness ratio is not likely to produce the damage that fractures.8 lower edge height b of rib block is middle 5 asphalt maximum rubble grain of surface layer
0.5~1.5 times of diameter, provides according to related specifications, middle surface layer and the common AC-20 and AC-25 bituminous concrete of cutting optimal, public
Claiming maximum particle diameter is respectively 19mm and 26.5mm, and 8 lower edge height b of rib block, which takes 10~30mm and is less than or equal to 1/ h3, to be advisable.Rib block
8 are formed using strength grade not less than C35 is concrete prefabricated.Geonet 7 is bidirectional glass fiber TGXG, is a kind of use
Glass fibre alkali-free roving is primary raw material, using mesh material made of certain weaving, bidirectional stretch
Intensity is 30~120kN/m.The mesh of geonet 7 is 1~1.5 times of middle 5 asphalt maximum ballast grain sizes of surface layer, is commonly used
The aperture of earth grille have 12.7mm and 25.4mm i.e. half inch and one inch, according to the partial size of cutting optimal, choosing
The earth grille for selecting aperture 25.4mm is advisable, and also can according to need the glass fibre geotechnique's lattice for customizing other apertures
Grid.
Structure Network 9 is in length and breadth uniformly by the mesh of square arrangement setting rib block 8 on geonet 7, and geonet 7 is pre-
Be anchored at when rib block 8 processed in the concrete of rib block 8, and be located at rib block 8 lower half, structure sheaf under the action of load, on
Compression lower tension in portion's is mutually pulled by geonet 7 between rib block 8, limits the horizontal position under carload effect of rib block 8
It moves.9 plan view of Structure Network is shown in that Fig. 4,9 elevation of Structure Network are shown in that Fig. 5, Fig. 5 are that the A-A of Fig. 4 is cutd open.Two of square arrangement are adjacent
Rib block 8 between gap V be 1~1.5 times of middle 5 asphalt maximum ballast grain sizes of surface layer, provided according to related specifications, in
Surface layer and the common AC-20 and AC-25 bituminous concrete of cutting optimal, nominal maximum particle diameter are respectively 19mm and 26.5mm, and two
Gap V chooses 20~30mm and is advisable between adjacent rib block 8.Structure Network 9 is the finished sheet material that factory is fabricated to, each length of a film
Edge geonet 7 stretches out the length of 8 one gap V of rib block, convenient for the binding between two panels when construction, 9 sheet material of Structure Network
Finished product stacking piles up multilayer using plastic baling band beam jail.
Structure Network 9 is laid on sealing 3, and a two face wedge shape cavities 11 are formed between two adjacent rib blocks 8, and wedge shape is empty
11 drawing of chamber is shown in that Fig. 6, Fig. 6 are that the B-B of Fig. 4 is cutd open.A four sides conical cavity 12, trapezoid space are formed between four rib blocks 8
12 drawings are shown in that Fig. 7, Fig. 7 are that the C-C of Fig. 4 is cutd open.Insert 10 is embedded in 11 He of wedge shape cavity when 5 asphalt of surface layer in making
In pyramid shape cavity 12, asphalt passes through sealing 3 and base 3 through the gap of the mesh insertion rib block 8 of geonet 7
It is bonded together.10 drawing of insert of wedge shape is shown in that Fig. 8, trapezoidal 10 drawing of insert are shown in Fig. 9.
Sealing 3 uses emulsified asphalt slurry seal, is by emulsified asphalt, the aggregate for meeting gradation, water, filler and additive
Stir into slurry mixture by certain design proportion, equably pave on road surface to be processed, wrapped, be demulsified, bleed,
The processes such as evaporation and solidification are firmly combined together with former road surface, are played the role of good waterproof and are penetrated into base.The present invention
Another effect of sealing 3 is set, is the adhesive layer and screed-coat as rib block 8 and base 2, makes connecing for rib block 8 and base 2
It is not in tilting phenomenon that contacting surface is firm.Sealing 3, cutting optimal 4, middle surface layer 5 can be considered that one layer of bituminous texture layer, rib block 8 are visual
To be wrapped in the aggregate in pitch, rib block 8 is braked and upward slope wheel by the extruding of the drawing of geonet 7 and insert 10
The effect of horizontal force, be not in aggregate be displaced to be formed gather around hired car rut phenomenon.Rib block 8 has larger smooth bottom surface, is embedded in envelope
In layer 3, under the load action of upper wheel, base 2 is passed down to by rib block 8, big loading end is substantially reduced to base
The pressure of layer 2, avoids the stress destruction of base 2.Base's cement stabilizing material contraction fissure, the rib block 8 of larger bottom surface pass through envelope
Layer 3 is covered in base 2, and the contraction fissure of base 2 cannot be reflected into middle surface layer 5 and upper layer 6 by rib block 8, between rib block 8
The insert 10 that is compacted of gap fill, filling position asphalt thickness is thicker, pulled between rib block 8 by geonet 7,
With stronger stress absorption effect, 2 contraction fissure of base between rib block 8 can not also reflex to upper layer 6, the water of base 2
Mud Stabilizing Materials can relax the limitation standardized to cement consumption, increase cement consumption, improve the intensity of base 2, be conducive to increase
The service life of road.
Middle grain formula AC-20 bituminous concrete can be used in middle surface layer 5 or coarse grain formula AC-25 bituminous concrete, thickness h 2 take 50
~80mm.Upper layer 6 can be used middle grain formula AC-16 bituminous concrete or MSA-13 asphalt-mastic-broken stone, and thickness h 3 takes 35~
60mm.If the road for medium traffic or light-duty Traffic volume level, using two layers of surface layer, cancel upper layer 6, directlys adopt
Surface layer 5 is used as pavement abrasion layer, and middle grain formula AC-16 bituminous concrete or MSA-13 asphalt-mastic-broken stone can be used, and following
4 two layers of surface layer structure of mutual hybrid layer of layer, thickness h 2 take 35~60mm.
The manufacture of Structure Network 9 is the pre-buried geonet 7 in prefabricated 8 concrete of rib block.The mold of rib block 8 is divided into two up and down
Point, upper die and lower die arrange multiple die holes according to the length and width of 9 mesh sheet of Structure Network in length and breadth, and the fenestra of lower mold is positive eight terrace with edges, mould
Hole depth is consistent with the height of 8 sloping portion of rib block, and the die hole of upper mold is positive eight prisms, and die hole depth is that 8 lower edge of rib block is high
2~3 times for spending b are arranged between die hole according to 8 gap V of rib block, and all lower die die holes hold together, all upper mold die holes
It holds together, upper die and lower die can be combined and be separated, and the die hole location of upper/lower die corresponds to each other when combination, one group of mould
The number of orifices of tool is equal to the quantity of a piece of 9 rib block 8 of Structure Network.Mold is inverted when prefabricated, i.e. the positive eight terrace with edges mould of lower die
The facet in hole is under, and the bottom of each lower die die hole is equipped with stripper plate, and lower die is equipped with form vibrator.Upper mold is placed in down
On mould, corresponding each upper mold die hole has pressing plate, and the lower surface of pressing plate is in convex-concave shape.Suitable coagulation is filled into each die hole
Soil, concrete use fines concrete.Pressing plate is pressed into upper die hole, the vibrator vibration of lower die, the concrete under the pressure of pressing plate
Shake closely knit, lift pressing plate and upper mold, the concrete in lower die hole with along concordant, concrete surface is in convex-concave shape on die hole.?
Geonet 7 is placed in lower die, upper mold combines in lower die again, cement paste is sprayed to the lower die concrete surface being compacted,
Be conducive to be firmly combined with the concrete of secondary filling.The suitable concrete of filling in upward die hole, Concrete Filled is primary
In the concrete convex-concave poured, for geonet 7 between convex-concave, the vibration of pressing plate pressurization and vibration device makes concrete compaction, control two
The secondary concrete amount poured keeps the concrete in upper mold die hole just consistent with 8 lower edge height b of rib block.After concrete initial set,
Pressing plate is pushed down, moulding/demoulding is lifted, removes upper mold and pressing plate, geonet 7 is anchored in the concrete of concrete two-step pouring.
Lower die is moved at pallet, overturns lower die, the stripper plate of the bottom of die hole, monolithic structure net 9 are fallen on pallet under pushing tow.It is next
Secondary to demould Structure Network 9 in previous on piece, 1~1.5m is piled up in stacking, and using plastic baling band, direction respectively sets 2~3 in length and breadth, beats
Backing plate is arranged in band and rib block 8, prevents damage rib block 8.Concrete uses dry concrete, in higher pressing plate and vibration
Under, concrete can achieve higher intensity, and pressure can demould after building.The good Structure Network 9 of bundling is sent to steam-curing chamber's high temperature
Maintenance, general steam curing stability contorting are being no more than 80 DEG C, can reach design strength within 5~8 hours, greatly shorten concrete
Curing time.
The construction method of embedded structure bituminous pavement of the invention, the construction and routine of underlayment 1, base 2, upper layer 6
Bituminous pavement is essentially identical, except that the construction of sealing 3, cutting optimal 4 and middle surface layer 5, embedded structure bituminous pavement is applied
Work method and step is as follows.
A. roadbed, making roadbed, layered rolling underlayment 1 and base 2 are rolled as conventional pavement construction.Roadbed, base
Layer construction will control elevation and horizontal slope, to guarantee that elevation and the horizontal slope of surface layer above meet design requirement.
B. base 2, which rolls completion, can carry out the construction of next procedure after detection meets checking computations code requirement.In base 2
Priming oil is uniformly dispensed, contains the pitch measured on a small quantity in priming oil, the fine gap of substrate surface is filled up, there is calking after lower infiltration
Effect.Priming oil dosage is 0.7 ~ 1.5kg/m2.Priming oil permeates completely, and pave sealing 3 in time after moisture evaporation, sealing 3
Using emulsified asphalt slurry seal, with slurry seal spreading machine by slurry seal material equably spread in base 2, spreading machine with
The speed of 1.5~3.0km/h is at the uniform velocity advanced, and spread thickness control is in 5~10mm.
C. 9 sheet material of Structure Network is laid on sealing 3,9 sheet material of Structure Network that stacking is piled up is transported to wait spread using fork truck
Scene, the fork truck of laying structure net 9 are provided with boom by repacking, and hand fit is laid with, and five suspension hooks of boom are hung over knot
The quadrangle and centre of network forming 9 are sling Structure Network 9 and are placed on the sealing 3 of laying, human assistance appropriate adjustment position.The road Xian Cong
The side on road is laterally spread to the other side, and playing rib block 8 at side, apart from 20~30 millimeters of kerbstone, the transverse lap of sheet material controls rib block
20~30 millimeters of gap is reserved between 8, the rib block 8 between sheet material linking corresponds to each other, and spreads to the other side kerbstone of road
Dismiss the extra rib block 8 of Structure Network 9 in place.One width laterally complete after as benchmark, subsequent Structure Network 9 can laterally longitudinally simultaneously
It spreads, 20~30 millimeters of gap is reserved between 9 portraitlandscape sheet material of Structure Network, it will every 300~600 millimeters using nylon tied silk
The geonet 7 that two face sheet materials connect fastens, and cuts extra tied silk, and extra tied silk makes Structure Network 9 be linked to be entirety, is laid with piece
Material crops the Structure Network 9 of corresponding portion when encountering inspection shaft and inlet for stom water.
D. Structure Network 9 roll one time using road roller, be mounted in rib block 8 in sealing 3, wedge shape cavity 11 and cone
The position sealing 3 of shape cavity 12 is raised slightly.
E. bonding oil is uniformly dispensed on Structure Network 9, the effect for bonding oil is the asphalt and rib block for making middle surface layer 5
8, sealing 3 preferably connects, and bonds 0.3~0.6 kg/m of oily dosage2。
F. at roadside and the corner parts at inspection shaft edge, leakage booth is easy to appear using machine spreading asphalt
Phenomenon, first with the edge with 8 outside of the asphalt of middle 5 same particle size of surface layer filling rib block, using hand rammer tamp to rib
8 either flush of block.
G. the empty paving coefficient determining according to test is paved middle 5 bituminous concrete mixture of surface layer using asphalt-spreader, booth
The dosage of volume shared by wedge shape cavity 11 and conical cavity 12 is considered as when paving, wedge shape cavity 11 and conical cavity 12 are mixed by pitch
Solidifying native mixture filling, the top of Structure Network 9 is also while the asphalt that paved, inspection spreading quality have leakage and spread phenomenon
Artificial leak repairing can be used.
H. middle 5 asphalt of surface layer is rolled using heavy road roller, first pressing: used heavy road roller static pressure 1 time, speed control
System is in 2.0~3.0km/h of static pressure, vibration pressure 1 time, vibration pressure 3.0km/h.Rolling method is driving wheel preceding, towards spreading direction row
It sails, beaming, which rolls the adjacent band that rolls, must be overlapped 1/3 ~ 1/2 wheel width.While rolling in wedge shape cavity 11 and conical cavity 12
Asphalt dense extrusion under the rolling of road roller, surface layer 5 is embedded in the insert 10 of cutting optimal 4, the week of rib block 8 in formation
It encloses and is embedded into body 10 and tightly wraps, for the aggregate of asphalt in the mesh of geonet 7, insert 10 penetrates Structure Network
9 are bonded together with sealing 3.Multiple pressure: heavy road roller vibrating roller is rolled, and number of rolling is that 2 times vibrations of static pressure are pressed 2 times, control
System is in 3.0 ~ 4.5km/h of static pressure velocity, vibration pressure speed 5.0km/h.It generally rolls 6~8 times, detects surface layer 5 in 8 top of rib block
Compactness, the requirement of Ying Fuhe acceptance specification.
I. bonding oil is uniformly dispensed in middle surface layer 5, bonds 0.3~0.6 kg/m of oily dosage2。
J. pave 6 bituminous concrete mixture of upper layer.
K. 6 bituminous concrete of steamroller upper layer is adopted, rolls mode with step h.
Pavement structure described in the present patent application file and drawings and embodiments is only an inserted type bituminous pavement
The embodiment of structure, the Structure Network being combined using concrete precast block and geonet are mutually chimeric with asphalt
Asphalt pavement structure, all in the protection scope of the application.
Claims (5)
1. a kind of embedded structure bituminous pavement, mainly by underlayment (1), base (2), sealing (3), cutting optimal (4), middle surface layer
(5), upper layer (6) forms, it is characterized in that: layer (4), middle surface layer (5), upper layer (6) form asphalt surface course below described,
Middle cutting optimal (4) is mutually chimeric with middle surface layer (5), and cutting optimal (4) is made of Structure Network (9) and insert (10), Structure Network (9)
It is combined by geonet (7) and rib block (8), layer (4) is same level, insertion below for Structure Network (9) and insert (10)
Body (10) is to be embedded in cutting optimal (4) interior asphalt between rib block (8) gap, insert (10) and middle surface layer (5)
Structure be linked together, be the asphalt of same particle size, the lower part of insert (10) is in contact and sticks with sealing (3) surface
It closes, sealing (3) lower part and base (2) are binded, and surface layer (5) asphalt is embedded in cutting optimal (4) rib block (8) gap in composition,
The inserted type asphalt pavement structure that rib block (8) is wrapped up by middle surface layer (5) asphalt and sealing (3).
2. embedded structure bituminous pavement according to claim 1, it is characterized in that: rib block (8) circular upper part is upper
Small lower big positive eight arris frustum, lower part are positive eight arris cylinders, and upper top surface and bottom surface are octagon, upper side 8
A inclined trapezoidal faces, lower side are eight rectangular surfaces, and the inclination alpha of trapezoidal faces is 30 °~45 °, the bottom surface of rib block (8)
Two opposite side spacing W are 1~1.5 times of cutting optimal (4) thickness h 3, and lower edge height b is that middle surface layer (5) asphalt maximum is broken
0.5~1.5 times of stone grain diameter, rib block (8) are formed using strength grade not less than C35 is concrete prefabricated；The geonet (7)
For bidirectional glass fiber TGXG, mesh is 1~1.5 times of middle surface layer (5) asphalt maximum ballast grain sizes, two-way anti-
Tensile strength is 30~120kN/m.
3. embedded structure bituminous pavement according to claim 1, it is characterized in that: the Structure Network (9) is in geonet
(7) in length and breadth uniformly by the mesh of square arrangement setting rib block (8) on, geonet (7) is anchored at prefabricated rib block (8)
It in the concrete of rib block (8), is mutually pulled between rib block (8) by geonet (7), limits rib block (8) and acted in carload
Lower horizontal displacement；Gap V is that middle surface layer (5) asphalt maximum is broken between two adjacent rib blocks (8) of square arrangement
1~1.5 times of stone grain diameter, Structure Network (9) are the finished sheet material that factory is fabricated to, the edge geonet (7) of each length of a film
The length of (8) gap V of rib block is stretched out, the stacking of Structure Network (9) finished sheet material piles up multilayer using plastic baling band beam jail.
4. embedded structure bituminous pavement according to claim 1, it is characterized in that: the Structure Network (9) is laid on sealing
(3) on, a two face wedge shape cavities (11) are formed between two adjacent rib blocks (8), form one four between four rib blocks (8)
Face conical cavity (12), insert (10) is embedded in wedge shape cavity (11) and pyramid shape when surface layer (5) asphalt in making
In cavity (12), asphalt is cohered with base (3) one through the gap of mesh insertion rib block (8) of geonet (7)
It rises.
5. a kind of construction method of embedded structure bituminous pavement, it is characterized in that: underlayment (1), base (2), upper layer (6) are applied
Work and conventional pitch road surface are essentially identical, and the sealing (3), cutting optimal (4) and middle surface layer (5) are applied with conventional bituminous pavement
Work method is different, and the construction method step of embedded structure bituminous pavement is as follows:
A. roadbed, making roadbed, layered rolling underlayment (1) and base (2) are rolled as conventional pavement construction；
B. priming oil uniformly being dispensed on base (2), priming oil permeates completely, it paves in time sealing (3) after moisture evaporation, sealing
(3) emulsified asphalt slurry seal is used, equably spread is spilt on base (2) by slurry seal material with slurry seal spreading machine
Cloth machine is at the uniform velocity advanced with the speed of 1.5~3.0km/h, and spread thickness control is in 5~10mm；
C. Structure Network (9) sheet material is laid on sealing (3), using fork truck will stacking pile up Structure Network (9) sheet material be transported to
Paving scene, hand fit are laid with, and first laterally spread from the side of road to the other side, rise at side rib block (8) apart from kerbstone 20~
30 millimeters, 20~30 millimeters of gap, the rib block between sheet material linking are reserved between the transverse lap of sheet material control rib block (8)
(8) it corresponds to each other, dismisses the extra rib block (8) of Structure Network (9) at paving to the other side kerbstone of road；After one width is laterally completed
As benchmark, subsequent Structure Network (9) laterally longitudinal can be spread simultaneously, reserve 20~30 between Structure Network (9) portraitlandscape sheet material
The gap of millimeter, is fastened the geonet (7) that two face sheet materials connect every 300~600 millimeters using nylon tied silk, and it is extra to cut
Tied silk, so that Structure Network (9) is linked to be entirety, be laid with the Structure Network for cropping corresponding portion when sheet material encounters inspection shaft and inlet for stom water
(9)；
D. Structure Network (9) roll one time using road roller, be mounted in rib block (8) in sealing (3), wedge shape cavity (11)
It is raised slightly with the position sealing (3) of conical cavity (12)；
E. bonding oil is uniformly dispensed on Structure Network (9)；
F. it at roadside and the corner parts at inspection shaft edge, is first filled out with the asphalt with middle surface layer (5) same particle size
Fill the edge on the outside of rib block (8), using hand rammer tamp to rib block (8) either flush；
G. the empty paving coefficient determining according to test, the middle surface layer that paves (5) bituminous concrete mixture are considered as wedge-shaped sky when paving
The dosage of volume shared by chamber (11) and conical cavity (12), wedge shape cavity (11) and conical cavity (12) are mixed by bituminous concrete
Material filling, the top of Structure Network (9) have also paved asphalt simultaneously；
H. surface layer in steamroller (5) asphalt is adopted, wedge shape cavity (11) and conical cavity (12) while rolling
Interior asphalt dense extrusion under the rolling of road roller, the insert of surface layer (5) insertion cutting optimal (4) in formation
(10), body (10) is embedded into around rib block (8) tightly to wrap, the aggregate of asphalt is embedded in the mesh of geonet (7)
Interior, insert (10) is bonded together through Structure Network (9) with sealing (3)；
I. bonding oil is uniformly dispensed on middle surface layer (5)；
J. pave upper layer (6) bituminous concrete mixture；
K. steamroller upper layer (6) bituminous concrete is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179930.0A CN109763397B (en) | 2019-03-11 | Asphalt pavement with embedded structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179930.0A CN109763397B (en) | 2019-03-11 | Asphalt pavement with embedded structure and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109763397A true CN109763397A (en) | 2019-05-17 |
| CN109763397B CN109763397B (en) | 2024-04-26 |
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| CN110158401A (en) * | 2019-06-07 | 2019-08-23 | 吴卓琳 | Block platform and flase floor |
| CN110396886A (en) * | 2019-07-06 | 2019-11-01 | 广东宏骏建筑工程有限公司 | A kind of reinforced asphalt pavement construction method |
| CN110863404A (en) * | 2019-11-20 | 2020-03-06 | 哈尔滨工业大学 | Continuous prefabricated asphalt pavement and construction method thereof |
| CN111101415A (en) * | 2019-12-17 | 2020-05-05 | 浙江泛海交通工程有限公司 | Composite asphalt pavement and construction method thereof |
| CN111218875A (en) * | 2020-03-04 | 2020-06-02 | 中国二十二冶集团有限公司 | Asphalt road paving base block, asphalt road structure and construction method thereof |
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| CN110158401B (en) * | 2019-06-07 | 2021-09-28 | 吴卓琳 | Plugging table and grid plate |
| CN110396886A (en) * | 2019-07-06 | 2019-11-01 | 广东宏骏建筑工程有限公司 | A kind of reinforced asphalt pavement construction method |
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| CN110863404A (en) * | 2019-11-20 | 2020-03-06 | 哈尔滨工业大学 | Continuous prefabricated asphalt pavement and construction method thereof |
| CN111101415A (en) * | 2019-12-17 | 2020-05-05 | 浙江泛海交通工程有限公司 | Composite asphalt pavement and construction method thereof |
| CN111218875A (en) * | 2020-03-04 | 2020-06-02 | 中国二十二冶集团有限公司 | Asphalt road paving base block, asphalt road structure and construction method thereof |
| CN112281561A (en) * | 2020-10-16 | 2021-01-29 | 河南璟信工程监理有限公司 | Heavy-load long-service-life highway structure and construction method |
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| CN113355973A (en) * | 2021-06-16 | 2021-09-07 | 深圳市综合交通设计研究院有限公司 | Prefabricated large-structure anti-falling-particle-abrasion asphalt wearing layer and laying method thereof |
| CN113652917A (en) * | 2021-06-30 | 2021-11-16 | 济南黄河路桥建设集团有限公司 | Bus station pavement structure and construction method thereof |
| CN113652917B (en) * | 2021-06-30 | 2023-03-10 | 济南黄河路桥建设集团有限公司 | Construction method for bus station pavement structure |
| CN113605167A (en) * | 2021-07-26 | 2021-11-05 | 长沙新立硅材料科技有限公司 | Asphalt pavement with composite structure |
| CN113667405A (en) * | 2021-09-09 | 2021-11-19 | 长沙新立硅材料科技有限公司 | Asphalt pavement structure |
| CN114481775A (en) * | 2022-03-19 | 2022-05-13 | 晋城市路创沥青应用有限公司 | Pavement base surface treatment method for improving asphalt paving effect |
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