CN209703228U - Inserted type asphalt pavement structure - Google Patents
Inserted type asphalt pavement structure Download PDFInfo
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- CN209703228U CN209703228U CN201920301748.3U CN201920301748U CN209703228U CN 209703228 U CN209703228 U CN 209703228U CN 201920301748 U CN201920301748 U CN 201920301748U CN 209703228 U CN209703228 U CN 209703228U
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- asphalt
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Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model 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 utility model relates to a kind of inserted type asphalt pavement structures, belong to highways and urban roads engineering field, especially
It is related to one kind and 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 purpose of this utility model is: providing a kind of inserted type asphalt pavement structure.Mainly by underlayment, base, sealing,
Surface layer, asphalt uplayer composition in pitch cutting optimal, pitch, cutting optimal is combined netted by geonet and concrete rib block
Structure, between the concrete rib block gap and geonet of the asphalt insertion cutting optimal of middle surface layer, concrete rib block is suitable
In the bulky grain aggregate wrapped up by middle surface layer asphalt and sealing, there is higher intensity and a structural stability, cutting optimal with
Middle surface layer is mutually chimeric, constitutes the asphalt pavement structure that double-layer structure is mutually inlayed.The beneficial effect is that: concrete rib block have compared with
High intensity, regular shaped bottom surface can provide biggish loading end, reduce the pressure to base, the concrete rib of cutting optimal
Block by geonet drawing and middle surface layer asphalt be embedded in limitation, be less prone under the action of heavy traffic load displacement and
It deforms, has thicker asphalt at the gap of concrete rib block, the reflection of the contraction fissure of base can be resisted, from structure
Construction aspect improves the bearing capacity of bituminous pavement.Cutting optimal substitutes most of asphalt using concrete precast block, increases
Reinforcement degree and cost reduce, and middle surface layer rolls simultaneously with cutting optimal, and the process that one of surface layer of reduction rolls reduces construction cost
With.
The utility model is realized by the following technologies: a kind of inserted type asphalt pavement structure, 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 pitch below described
Surface layer, 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 soil
Work net 7 and rib block 8 are combined, and Structure Network 9 and the layer 4 below of insert 10 are same level, and insert 10 is that insertion is following
Asphalt in layer 4 between 8 gap of rib block, it is same particle size that insert 10 and the structure of middle surface layer 5, which are linked together,
Asphalt, the lower part of insert 10 is in contact and binds with 3 surface of sealing, and 3 lower part of sealing and base 2 bind, and constitutes
Middle 5 asphalt of surface layer is embedded in 4 rib block of cutting optimal, 8 gap, and rib block 8 is wrapped up embedding by middle 5 asphalt of surface layer and sealing 3
Box-like 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 on geonet 7 in length and breadth uniformly by the mesh of square arrangement setting rib block 8, geotechnique
Net 7 is anchored in the concrete of rib block 8 in prefabricated rib block 8, is mutually pulled between rib block 8 by geonet 7, is limited rib block
8 horizontal displacements under carload effect；Gap V is mixed for middle 5 pitch of surface layer between two adjacent rib blocks 8 of square arrangement
1~1.5 times for expecting maximum ballast grain sizes is closed, Structure Network 9 is the finished sheet material that factory is fabricated to, the edge soil of each length of a film
Work net 7 stretches 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 utility model is started with from the composition of pavement structure construction, plays layer 4 and middle surface layer 5 below carrying to surface layer
It improves, this two layers is mutually fitted into together, is mutually restrained, 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 is using inclination
Face 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
After closing material, more more embedding tighter under the rolling of road roller, rib block 8 is braked by the extruding of the drawing of geonet 7 and insert 10
With 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
Face is embedded in sealing 3, under the load action of upper wheel, is passed down to base 2 by rib block 8, big loading end is significantly
The pressure to base 2 is reduced, the stress destruction of base 2 is avoided.Base's cement stabilizing material contraction fissure, the rib of larger bottom surface
Block 8 is 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 by rib block 8,
The insert 10 that gap between rib block 8 is compacted is filled, and thickness is thicker, is pulled between rib block 8 by geonet 7, is had relatively strong
Stress absorption effect, 2 contraction fissure of base between rib block 8 can not also reflex to upper layer 6.Therefore, the cement of base 2 is steady
Fixed material, can relax the limitation standardized to cement consumption, increase cement consumption, improve the intensity of base, to extension heavy traffic, spy
There is important meaning in heavy traffic road service life.Two layers of surface layer can also be used in the utility model, cancel upper layer, directly in use
Surface layer is chimeric with cutting optimal, the road as pavement abrasion layer, for medium traffic and light-duty Traffic volume level.
Detailed description of the invention
Fig. 1 is the utility model pavement structure figure；
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 utility model, the utility model is made into one in conjunction with FIG. 1 to FIG. 9
The explanation of step, the content that embodiment refers to not are the restriction to the utility model.
The utility model is started with from the composition of pavement structure construction, plays layer 4 and middle surface layer 5 below carrying to surface layer
It improves, this two layers is mutually fitted into together, is mutually restrained, the displacement deformation reduced under load action destroys.Inserted type asphalt road
Face structure is mainly made of underlayment 1, base 2, sealing 3, cutting optimal 4, middle surface layer 5, upper layer 6, the utility model road surface knot
Composition is shown in Fig. 1.Cutting optimal 4, middle surface layer 5, upper layer 6 form asphalt surface course, and wherein cutting optimal 4 and middle surface layer 5 are mutually chimeric, under
Surface layer 4 is made of Structure Network 9 and insert 10, and Structure Network 9 is combined by geonet 7 and rib block 8, Structure Network 9 and insert
10 layers 4 below are same level, and insert 10 is the asphalt being embedded in cutting optimal 4 between 8 gap of rib block, embedding
Enter body 10 and the structure of middle surface layer 5 is linked together, is the asphalt of same particle size, the lower part of insert 10 and 3 table of sealing
Face is in contact and binds, and 3 lower part of sealing and base 2 bind, in composition between 5 asphalt of surface layer insertion, 4 rib block 8 of cutting optimal
Gap, the inserted type asphalt pavement structure that rib block 8 is wrapped up by middle 5 asphalt of surface layer and sealing 3.
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.This is practical
Another effect of novel setting sealing 3, is the adhesive layer and screed-coat as rib block 8 and base 2, makes rib block 8 and base 2
Contact surface it is firm be not in tilting phenomenon.Sealing 3, cutting optimal 4, middle surface layer 5 can be considered one layer of bituminous texture layer, rib block 8
It can be considered the aggregate being wrapped in pitch, rib block 8 is braked and gone up a slope by the extruding of the drawing of geonet 7 and insert 10
The effect of wheel 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, insertion
In sealing 3, under the load action of upper wheel, base 2 is passed down to by rib block 8, big loading end substantially reduces
To the pressure of base 2, the stress destruction of base 2 is avoided.The rib block 8 of base's cement stabilizing material contraction fissure, larger bottom surface is logical
It crosses sealing 3 to be covered in base 2, the contraction fissure of base 2 cannot be reflected into middle surface layer 5 and upper layer 6, rib block 8 by rib block 8
Between the insert 10 that is compacted of gap fill, filling position asphalt thickness is thicker, by geonet 7 between rib block 8
Drawing, has stronger stress absorption effect, and 2 contraction fissure of base between rib block 8 can not also reflex to upper layer 6, base 2
Cement stabilizing material, can relax and standardize limitation 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
It shakes closely knit, lifts pressing plate and upper mold, the concrete in lower die hole is showed concordant with die hole, and concrete surface is in convex-concave shape.In
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 dense, controls secondary
The 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, pressure
Firmly pressing plate lifts moulding/demoulding, removes upper mold and pressing plate, and geonet 7 is anchored in the concrete of concrete two-step pouring.Under
Mould 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.Next time
By the demoulding of 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, is packaged
Backing plate is arranged with rib block 8 in band, prevents damage rib block 8.Concrete uses dry concrete, under higher pressing plate and vibration,
Concrete can achieve higher intensity, and pressure can demould after building.The good Structure Network 9 of bundling send to steam-curing chamber's high temperature and supports
Shield, general steam curing stability contorting are being no more than 80 DEG C, can reach design strength within 5~8 hours, greatly shortening concrete and support
Protect the time.
The construction method of the embedded structure bituminous pavement of the utility model, underlayment 1, base 2, upper layer 6 construction with
Conventional pitch road surface is essentially identical, except that the construction of sealing 3, cutting optimal 4 and middle surface layer 5, inserted type bituminous pavement knot
The construction method step of structure 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 present utility model application file and drawings and embodiments is only an inserted type pitch
The embodiment of pavement structure, the Structure Network being combined using concrete precast block and geonet are mutually embedding with asphalt
The asphalt pavement structure of conjunction, all in the protection scope of the application.
Claims (4)
1. a kind of inserted type asphalt pavement structure, 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. inserted type asphalt pavement structure according to claim 1, it is characterized in that: described rib block (8) circular upper part is
Up-small and down-big positive eight arris frustum, lower part are positive eight arris cylinders, upper top surface and bottom surface as octagon, and upper side is
8 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 be 1~1.5 times of cutting optimal (4) thickness h 3, lower edge height b is that middle surface layer (5) asphalt is maximum
0.5~1.5 times of ballast grain sizes, rib block (8) are formed using strength grade not less than C35 is concrete prefabricated；The geonet
It (7) is bidirectional glass fiber TGXG, mesh is 1~1.5 times of middle surface layer (5) asphalt maximum ballast grain sizes, double
It is 30~120kN/m to tensile strength.
3. inserted type asphalt pavement structure according to claim 1, it is characterized in that: the Structure Network (9) is in geotechnique
In length and breadth uniformly by the mesh of square arrangement setting rib block (8) on net (7), 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 make in carload
With lower horizontal displacement；Gap V is that middle surface layer (5) asphalt is maximum between two adjacent rib blocks (8) of square arrangement
1~1.5 times of 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) length of (8) gap V of rib block is stretched out, the stacking of Structure Network (9) finished sheet material piles up multilayer and uses plastic baling band beam
Jail.
4. inserted type asphalt pavement structure according to claim 1, it is characterized in that: the Structure Network (9) is laid on envelope
On layer (3), a two face wedge shape cavities (11) are formed between two adjacent rib blocks (8), form one between four rib blocks (8)
Four sides conical cavity (12), insert (10) is embedded in wedge shape cavity (11) and rectangular pyramid when surface layer (5) asphalt in making
In shape cavity (12), asphalt is cohered with base (2) one through the gap of mesh insertion rib block (8) of geonet (7)
It rises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920301748.3U CN209703228U (en) | 2019-03-11 | 2019-03-11 | Inserted type asphalt pavement structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920301748.3U CN209703228U (en) | 2019-03-11 | 2019-03-11 | Inserted type asphalt pavement structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763397A (en) * | 2019-03-11 | 2019-05-17 | 广东盛际工程咨询有限公司 | Embedded structure bituminous pavement and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763397A (en) * | 2019-03-11 | 2019-05-17 | 广东盛际工程咨询有限公司 | Embedded structure bituminous pavement and construction method |
| CN109763397B (en) * | 2019-03-11 | 2024-04-26 | 广东智铭设计有限公司 | Asphalt pavement with embedded structure and construction method |
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