CN201258447Y - Asphalt concrete pavement water damage prevention composite structure for moist area - Google Patents
Asphalt concrete pavement water damage prevention composite structure for moist area Download PDFInfo
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- CN201258447Y CN201258447Y CNU2008201452557U CN200820145255U CN201258447Y CN 201258447 Y CN201258447 Y CN 201258447Y CN U2008201452557 U CNU2008201452557 U CN U2008201452557U CN 200820145255 U CN200820145255 U CN 200820145255U CN 201258447 Y CN201258447 Y CN 201258447Y
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Abstract
The utility model discloses a structure for resisting damage by water for a humid region bituminous concrete pavement, which comprises a road foundation. The structure is characterized in that a cement stabilized graded crushed stone layer is arranged on the road foundation, a sand grain layer is arranged on the cement stabilized graded crushed stone layer, a geotextile layer is arranged on the sand grain layer, a crushed stone layer is paved on the geotextile layer, another geotextile layer is covered on the crushed stone layer, a graded crushed stone foundation layer is arranged on the another geotextile layer, and a bituminous concrete surface layer and a bitumen treatment foundation layer are arranged on the graded crushed stone foundation layer. The structure can resist damage by water, relieve and reduce reflection cracks of the cement stabilized graded crushed stone layer or the road foundation, reduce early stage damage due to cracking and water leakage of the bituminous surface layer, and prolong the service life of the humid region bituminous concrete pavement, so as to obtain better economic effect.
Description
Technical field:
The utility model relates to a kind of asphalt concrete pavement anti-water damage structure field, especially belongs to a kind of moist district asphalt concrete pavement anti-water damage combining structure.
Background technology:
Low temperature rainy season, Asphalt Concrete Pavement of Freeway behind rain, occur a lot of from the crack, emerge the mud on road surface along transverse slope row to curb, make the road surface present the zebra wire, emit the slurry phenomenon to continue along with continuing of amount of precipitation and rain time.The slurry phenomenon occurring emitting is that rainwater in the crack produces water under high pressure and washes away basic unit or soil matrix and cause the loose cavity of basic unit under the effect of traffic load.Rain stops the fine Slit bottom water evaporates basic unit day after tomorrow (soil matrix) drying shrinkage, seam both sides, crack surface layer is in the semi-cantilever state, traffic load makes the top coat of both sides, crack surface layer produce tensile stress and shear stress, when face of land temperature descends, bituminous concrete plasticity reduces fragility and increases, produce secondary fracture and expansion gradually at the both sides, crack of vehicle ' canalization track asphalt concrete pavement, cause the loose hole of supercrust groove, as in time not repairing, inferior the increasing progressively and proportional increase of axletree of will accompany of hole groove, extensive damage will appear in a low temperature road surface in rainy season.After road was handed over 4～5 years, it was common phenomena comparatively that similar disease appears in its asphalt concrete pavement.
Destroying appears in above-mentioned road surface, and the one, road surface structare layer produces the crack and causes a main cause of " illness finds its way in by the mouth ".The 2nd, rainwater is gone into the internal construction of immersion liquid destruction basic unit and surface layer, causes structural destruction.The 3rd, traffic load acts on down the generation compressive stress repeatedly and shear stress crack periphery concrete fatigue cracking is loose.This seasonal disease of bituminous concrete can change it from the Pavement Structure Combination design, reduces its destructive power, prolongs the application life on road surface.
One, road construction segment structure type
Existing Asphalt Concrete Pavement of Freeway textural association type commonly used has:
Structure types one: asphalt concrete pavement (upper, middle and lower)+envelope (thoroughly) oil reservoir+5% cement stabilized grading crushed stones basic unit (the steady basic unit of abbreviation water, down together)+3% cement stabilized grading crushed stones subbase (being called for short the steady subbase of water, down together);
Structure types two: asphalt concrete pavement (upper, middle and lower)+envelope (thoroughly) oil reservoir+steady subbase of the steady basic unit of 5% water+3% water+graded broken stone layer;
Structure types three: asphalt concrete pavement (upper, middle and lower)+bituminous concrete or asphalt macadam basic unit+steady basic unit of the 5% water+steady subbase of 3% water;
In the above-mentioned road structure, " structure types one " accounts for existing asphalt pavement of highway more than 85%." structure types two " begins that in the beginning of this century making is arranged, but quantity is few under-represented." structure types three " be usefulness seldom, mainly is to occur similar structures when adopting original road surface as basic unit during repair on old road.
Two, deck crack
(1) roadbed crack:
In roadbed filling, filler liquid limit and water content are higher in the bottom land 80CM depth bounds of road, and the roadbed groundwater table is unstable and with the highway section of seasonal variety, and draining is not in place, the placement grinding construction is lack of standardization, the road slot part of dry season water evaporates roadbed end face and the easy crack that produces.
(2) steady basic unit of water and the steady subbase of water (can be called for short the steady layer of water, cement stabilized grading crushed stones layer promptly described in the utility model) crack:
The temperature of steady basic unit of water and subbase contract and shrinkage crack after construction making moulding, inorganic binder hydrated cementitious and water evaporates, the microcrack of drying shrinkage begins to produce, the watering amount reduces microcrack and develops gradually after the preserving period.Early stage microcrack width is very little, the degree of depth also only the top layer part generally be no more than bed thickness half and irregular discontinuous, microcrack distributes closeer, is " ∨ " font opening upwards.Be exposed in the air owing to basic unit's summit portion before the surface construction, directly be subjected to the influence of the xeothermic or temperature drop drying shrinkage of high temperature at sunshine, xeothermic or the health of low temperature drying shrinkage is untimely when temperature, the crack development is very fast, straight joint will occur at road surface cross-sectional direction (contraction of route axis direction) and thickness direction, straight joint constantly increases with the increased number of making molding time.Distribution of cracks density is also relevant with the hydrogeological situation in quality control on construction and highway section of living in except that curing condition.The main cause that the steady layer of water produces the crack has: the 1. reason of match ratio design.Surely layer quality is based on strength control to water before this, and it is less that the grating framework compact type is considered, it is also tight inadequately that fines content is controlled.2. rubble quality of materials.The crush values of rubble and faller gill shape are the key indexs of quality control, crush values Da Shi matter intensity is just low, the rubble fine powder material of the building stones processing that compressive strength is low is many, weather has the following particle screening of rainy 4.75MM will glue sieve slightly, especially the content of the following particle of 0.5MM and index of plasticity are wayward, are the hidden danger of the steady slabbing seam of water.Rubble that intensity is low and soft particle are easily crushed in the decking and rolling in construction, and crushed particle does not have cementitious matter in the crack, are the weak interfaces that the steady layer of water shrinks cracking resistance, are easy to generate the crack and are destroyed by rain drop erosion.3. the quality of cement material.Less on the special-purpose highway pavement cement market, the engineering material purchase bidding generally is to prepare production after being shortlisted for by producer.Like this in production and supply, the time of using of marching into the arena, quantitatively often contradictory, the cement that just has the quality edge when taking as the leading factor in the duration replaces using.The cement of selecting for use carries out decking and rolling in the time delay that surpasses the steady binder of water, not only reduces intensity but also can cause base course crack loose, and rainy season, purt mud emitted slurry.4. the crack that causes of construction technology and operation.From wash rice, fines is concentrated when being paved by mainly containing of causing of construction technology.Between moulding and preserving period, driven a vehicle or the effect of external force, the steady layer of water internal construction destroyed produced the crack.From the steady link base layer mistake of water, stay the long wheelmark crack reflection of hundreds of rice as the vehicle of shipment pitch batching plant plant equipment in the construction of certain express highway pavement to surface layer.The interface shrinkage crack also can cause in the construction joint place besides.
(3) asphalt concrete pavement (comprising the upper, middle and lower layer) crack:
Bituminous cements is a temperature-sensitive material, loses plasticity when temperature descends, and produces embrittlement under external force.Opposing is curved when being the bituminous concrete low temperature of cementitious matter with pitch draws deformability to descend and produces linear shrinkage, and cracking appears in the position of section weakness under the effect of vehicular load.Surface layer produces reasons of cracks to be had: the one, and low temperature causes asphalt concrete pavement self linear shrinkage crack; The 2nd, the reflection crack of basic unit; The 3rd, the shear fatigue crack that traffic load produces; The 4th, seam, the segregation that paves, construction machinery damage etc. in the construction.
(4) structure layer by layer with the crack of interlayer:
The soil matrix crack generally occurs in the embankment highway section, and its filling-up thickness is all thicker, requires to occur dry and cracked when road groove filler and water content do not meet to fill, and the crack of soil matrix just has bigger destructive power can reflex on basic unit and the surface layer.The crack reflection of subbase and basic unit has two kinds of situations, a kind of is water evaporates drying shrinkage after the subbase laying moulding health, though the crack not too obviously but generate, subbase produces shrinkage crack prior to basic unit when basic unit's making, so the shrinkage crack of subbase can reflex to basic unit, the crack that makes basic unit is along with subbase crack location cracking and more than subbase.Another kind is that construction was laid before basic unit was laid on subbase generation shrinkage crack, and this will reduce the fracture spacing of basic unit.The shrinkage crack of basic unit reflex to surface layer be the contraction tensile stress that produces of base-layer contraction crack greater than surface layer bituminous concrete tension stress, bituminous concrete self shrank and has encouraged the base-layer contraction tensile stress when temperature descended, and made the accelerated development of surface layer reflection crack.
Three, deck crack damage by water evil
By " flexible pavement functional performance weather subregion " moist district, year precipitation (rain) amount is greater than more than the 1000MM.Precipitation is the main natural cause of asphalt concrete pavement early water infringement:
(1) soil matrix reflection crack:
Rainy day, the rainwater on road surface is absorbed by the crack interception and pours into soil matrix, owing to do not establish drainage blanket in the soil matrix, water accumulates in the filler immersion of both sides, crack is expanded, when automobile passes through the road surface, crack, wheel drives to and produces horizontal force between Shun before the crack and make pressure between water generates Shun in the crack and adhere to vertically downward at wheel between Shun of road surface moisture film and produce impact force, the pressure that impels the water in the crack can form up to 0.4 ~ 0.6MPa washes away the both sides, crack and runs through two ends, when between Shun that wheel leaves, the crack is recovered horizontal plastic strain and is produced vacuum coherence power between Shun, make both sides, crack filler quicken to peel off to come off, under day, thousands of traffic loadings acted on repeatedly, continuous rainfall soil matrix crack liquefaction cap was starched even is made surface layer produce settlement failure.
(2) the steady deck of water:
The base course reflection crack is subjected to rainwater that the road surface pours into soak after, surface of aggregate is softening, the especially filler of the following particle of the 0.5MM displacement that deforms of expanding of fine aggregate, under the souring of traffic load and press water, the steady basic unit of water begins to occur purt mud and emits slurry, rainwater is constantly irritated down, and fine aggregate constantly is squeezed out the road surface, and making comes to nothing between basic unit and road surface ftractures loose until surface layer.
(3) asphalt concrete pavement:
Surface layer cracking back rainwater pours into that soak in the crack, liquefaction deck binder in the space of both sides, crack and crack, under the effect of traffic load, produce and wash away, emit slurry, depression, cracking, loose destruction.
The asphalt concrete pavement deck occurs that water then is the catalyzer that the crack develops the hole groove behind the crack, and the damage by water evil is one of severe diseases in the present pavement disease, also is one of refractory reason disease.Construction brings great economic loss to have brought many negative effects also for the highway operation management to highway communication for it.
Summary of the invention:
The purpose of this utility model is to provide a kind of moist district asphalt concrete pavement anti-water damage combining structure, it can reduce or reduce the frequency that the crack produces, start with from the crack of reducing deck and the water guide of harnessing the river, restraint crack connects basic unit, the path of control water makes water no longer include extreme destructive power.
The purpose of this utility model is achieved in that described moist district asphalt concrete pavement anti-water damage combining structure, comprise roadbed, its design feature is for being provided with one deck cement stabilized grading crushed stones layer on roadbed, upper layer at the cement stabilized grading crushed stones layer is the sand grains layer, at sand grains layer upper layer is one deck geotechnique layer of cloth, on geotechnological layer of cloth, be covered with macadam, on macadam, be stamped another geotechnological layer of cloth, at another geotechnological layer of cloth upper layer is graded broken stone base, is that asphalt concrete pavement and pitch are disposed basic unit on graded broken stone base.
Advantage of the present utility model: Pavement Structure Combination design of the present utility model is compared with existing " asphalt concrete pavement+cement stabilized grading crushed stones basic unit+cement stabilized grading crushed stones subbase " Pavement Structure Combination design of building up has increased geotechnological layer of cloth and this intermediate layer of sand grains layer, has significantly anti-water damage structure function, the reflection crack effect of buffering and minimizing cement stabilized grading crushed stones layer and roadbed is arranged, can reduce the early disease that top-crack leaks and produces, prolong the service life of moist district asphalt concrete pavement, thereby obtain better economic effect.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Among the figure: asphalt concrete pavement and pitch are disposed basic unit 1, graded broken stone base 2, macadam 3, geotechnological layer of cloth 4, another geotechnological layer of cloth 41, sand grains layer 5, cement stabilized grading crushed stones layer 6, roadbed 7.
The specific embodiment:
Below in conjunction with drawings and Examples structure of the present utility model and operating principle and the course of work are elaborated:
As shown in Figure 1, described moist district asphalt concrete pavement anti-water damage combining structure, comprise roadbed 7, its design feature is for being provided with one deck cement stabilized grading crushed stones layer 6 on roadbed 7, upper layer at cement stabilized grading crushed stones layer 6 is a sand grains layer 5, the sand grains layer can be the coarse sand granulosa or in, the coarse sand granulosa, at sand grains layer 5 upper layer is one deck geotechnique layer of cloth 4, on geotechnological layer of cloth 4, be covered with macadam 3, the ballast grain sizes of macadam 3 can be 4.75～13.2mm, on macadam 3, be stamped another geotechnological layer of cloth 41, at another geotechnological layer of cloth 41 upper layers is graded broken stone base 2, be that asphalt concrete pavement and pitch are disposed basic unit 1 on graded broken stone base 2, so just finished anti-water damage of the present utility model road surface combining structure.
One, anti-water damage Pavement Structure Combination
The design of anti-water damage Pavement Structure Combination: asphalt concrete pavement and pitch are disposed another geotechnological layer of cloth 41+ particulate formula macadam 3+ geotechnique layer of cloth 4+ sand grains layer 5+ cement stabilized grading crushed stones layer 6 of the 1+ of basic unit graded broken stone base 2+
Asphalt concrete pavement and pitch are disposed basic unit 1 can comprise asphalt concrete pavement and pitch disposal basic unit, this is two-layer to be organically to combine, asphalt concrete pavement can be established upper layer and following surface layer, upper layer adopts the close-graded modified asphalt concrete, following surface layer adopts dense-graded asphalt concrete or modified asphalt concrete, and the thickness of the upper and lower surface layer of bituminous concrete should be controlled at 10.0～12.0CM.Pitch is disposed basic unit can adopt close-graded asphalt macadam or half-open grating asphalt macadam, and the thickness of its thickness and graded broken stone layer 2 and cement stabilized grading crushed stones layer 6 is determined according to the road section traffic volume rating calculation.Particulate formula macadam 3, bed thickness 2.5～3.0CM, ballast grain sizes 13.2～4.75MM requires the high rubble of clean no soft particle intensity.Geotextiles has permeable solid sand function.
Two, anticracking waterproof sand grains layer
In order to prevent that rainwater from directly pouring into cement stabilized grading crushed stones layer 6 or roadbed 7 from the crack of asphalt concrete pavement and pitch disposal basic unit 1, be provided with sand grains layer 5 on cement stabilized grading crushed stones layer 6.The real thickness of sand grains lamination should be greater than 25CM, and is not less than 0.8 times of thickness of cement stabilized grading crushed stones layer 6.Require sand grains be in, coarse sand, apparent relative density, soundness, mud content, sand equivalent technical indicator should meet " asphalt highway construction technique normalizing " (JTG F40-2004) fine aggregate quality requirement.Its function is to reduce top-crack to penetrate into cement stabilized grading crushed stones layer 6, prevents that the reflection crack of cement stabilized grading crushed stones layer 6 or roadbed from reflexing to asphalt concrete pavement and pitch disposal basic unit 1.Sand material has preferably mechanical property and is made full use of by engineering, and sand grains is subjected to the external force effect when no lateral confinement loose easily, can reach higher compression ability and non-deformability when lateral confinement is arranged, and its compression modulus E can reach 80～100MPa.Be arranged on the graded broken stone base bottom as middle bed course form and be subjected to the structural requirement that lateral confinement can satisfy transmission asphalt concrete pavement and pitch disposal basic unit 1 load.
(1) sand grains layer 5 can cushion and weaken the shrinkage crack of asphalt concrete pavement and pitch disposal basic unit 1 (abbreviating surface layer here as) transmission.The sand grains layer is because have lateral confinement and be compacted into whole shape when construction, asphalt surface course 1 shrinkage crack extends to sand grains layer 5 under the effect of asphalt surface course 1 contraction tensile stress, cracking also appears in sand grains layer 5, but fracture extension is during to sand grains layer 5, and crack width dwindles gradually than asphalt surface course 1.Since sand grains layer 5 be in, the compacted loose media structure of not mixing cementitious materials of coarse sand granule, tensile stress is very low, the crack can only occur in sand grains layer 5 end face certain depth scope, is difficult for making whole sand grains layer 5 cracking to penetrate into the steady layer 6 of water.
(2) sand grains layer 5 can cushion the reflection crack that the cement stationary level is joined macadam 6 or roadbed 7.The reflection crack of cement stabilized grading crushed stones layer 6 or roadbed 7 is that " ∨ " font opening is to sand grains layer 5 bottom, same sand grains layer 5 is because have lateral confinement and be compacted when construction and contraction tensile stress drawing crack that the crack that is reflected produces, this moment sand grains layer 5 crack be " ∧ " type Open Side Down towards the steady slabbing seam of water mouthful.When shrinkage cracking appears in deck, the temperature that is in weather contracts or the dry calendar time section of drying shrinkage, sand grains has loose instinct in drying, the sand grains of both sides, crack is in half side limit state, under the vibration effect of traffic load, the loose displacement of sand grains is backfilling in the crack of cement stabilized grading crushed stones layer 6 and makes the full closure state that is in crack.These characteristics of sand material cushion or have reduced that asphalt surface course 1 crack connects basic unit and the disease that produces has prevented that the reflection crack of cement stabilized grading crushed stones layer 6 or roadbed 7 from reflexing to asphalt surface course 1.
(3) sand grains layer 5 has and prevents that rainwater from directly pouring into the effect of cement stabilized grading crushed stones layer 6.When rainwater pours into sand grains layer 5 end face from the crack, because geotechnological layer of cloth 4 and another geotechnological layer of cloth 41 are isolated with sand grains layer 5, rainwater can not directly wash away the cement stationary level and join macadam 6 or roadbed 7 from the crack, can only enter sand grains layer 5 by the path of infiltration, enter the frictional resistance that sand grains layer 5 interior water are subjected to sand grains, water under high pressure transfers pore pressure water to, has alleviated the scouring force of cement stabilized grading crushed stones layer 6 or roadbed 7, the destruction of having weakened water.When next was cement stabilized grading crushed stones layer 6 crack and sand grains slabbing seam UNICOM, sand grains was subjected to the rainwater immersion and loses cohesion, under the effect of gravity, to the displacement backfill of bottom, crack, natural equilibrium crack.Sand grains layer 5 also has water permeability preferably, and transverse slope provides passage for 5 draining of sand grains layer, reduces the ponding of cement stabilized grading crushed stones layer 6 or roadbed 7, reduces damage by water evil degree.
Three, the auxiliary layer macadam 3 of sand grains layer 5 and geotechnological layer of cloth 4 and another geotechnological layer of cloth 41
Sand grains layer 5 tensile stress and cohesion are all very low, and fracture extension is during to sand grains layer 5, and the press water in the crack can wash away sand grains to be emptied, and the auxiliary layer of particulate formula macadam 3 and geotechnological layer of cloth 4 and another geotechnological layer of cloth 41 need be set.But particulate formula macadam 3 is very thin, is difficult to the structural entity of control stratiform uniform thickness in the construction as the independent structures layer, and geotechnological layer of cloth 4 is connected and the compaction process etc. of constructing with the interface of its structure, should be as the emphasis of textural association design.
(1) in order to prevent that the press water in the crack from washing away sand grains layer 5, lays geotechnological layer of cloth 4, got up with geotextiles 4 parcel protection in above the sand grains layer 5 and curb both sides, make sand grains directly not bear rain drop erosion in the crack at sand grains layer 5 end face.Geotechnique's layer of cloth 4 will have good water permeability and protect the solid sand function of soil (sand grains), reaches sand grains layer 5 and is not subjected to scouring effect.
(2) particulate formula macadam 3.Be provided with the thick particulate formula rubble auxiliary layer 3 of 2.5～3.0CM its objective is for the geotechnological layer of cloth 4 on the sand grains layer 5 directly with in, coarse grain graded broken stone base 2 docks, and prevents the transition zone that geotechnological layer of cloth 4 is punctured.
(3) interface of 3 of geotechnological layer of cloth 4 and sand grains layer 5, macadams is connected.Very thin thickness after 4 compactings of geotechnique's layer of cloth, and softness has adhesive power, and the roughness of particulate formula macadam 3 bottom surfaces makes geotechnological layer of cloth 4 produce concavo-convex and sand grains layer 5 has coarse preferably binding interface.
Four, road structure durability
The road structure durability is relative, promptly passes through modular design with target design service life and close expense input, is used for similar traffic environment, obtains long application life.The design of sand grains floor textural association just is based on the durability consideration of moist district.
(1), sand grains layer 5, cement stabilized grading crushed stones layer 6 durability.Sand grains layer 5 has anti-pressure ability and anti-shear ability preferably as the deck of sharp sand grain under the condition of lateral confinement, be difficult for producing fatigue failure, also has water stability preferably simultaneously, promptly meeting the water low temperature drying of not expanding does not shrink and does not ftracture, be durable material preferably, can be used as the deck of durability.Be provided with sand grains layer 5 on cement stabilized grading crushed stones layer 6, cement stabilized grading crushed stones layer 6 is based on the effect that can reach synchronous durability under the protective action of sand grains layer 5.
(2) the graded broken stone layer 2.Graded broken stone layer 2 is the insufficient rigidity of dimension stop-off granulosa 5 and the transition zone that is provided with, compression rebound modulu is greater than 200MPa, water stability is preferably arranged, do not produce breathing with temperature difference climate change and change, the auxiliary layer of disposing under the basic unit as pitch is the comparison reasonable structure form.
(3) asphalt concrete pavement and pitch are disposed basic unit 1, can comprise asphalt concrete pavement and pitch disposal basic unit, asphalt concrete pavement and pitch are disposed basic unit be connected that to be set together mainly be from the thickness of surface layer structure and the rigidity of basic unit, surface layer and basic unit are organically combined, improve the globality of surface layer and basic unit, opposing load curved draws, shear stress, raising surface layer and basic unit's water stability, opposing damage by water evil ability, the structural entity of formation durability.
Crevice volume when sand grains layer 5 energy homeostasis road surface structare layers drying or immersion, this is the advantage that other material is difficult to replace.The design of the utility model Pavement Structure Combination has relatively increased geotechnological layer of cloth and sand grains layer with " asphalt concrete pavement+cement stabilized grading crushed stones basic unit+cement stabilized grading crushed stones subbase " Pavement Structure Combination design of having built up, has significantly anti-water damage structure function, buffering and minimizing cement stabilized grading crushed stones layer 6 are arranged, and (cement stabilized grading crushed stones layer 6 comprises cement stabilized grading crushed stones basic unit and cement stabilized grading crushed stones subbase, be called for short the steady layer of water) or the reflection crack effect of roadbed 7, can reduce the early disease that the asphalt surface course crack leaks and produces, prolong the service life of moist district asphalt concrete pavement, thereby obtain better economic effect.
Claims (1)
1, a kind of moist district asphalt concrete pavement anti-water damage combining structure, comprise roadbed (7), it is characterized in that on roadbed (7), being provided with one deck cement stabilized grading crushed stones layer (6), upper layer at cement stabilized grading crushed stones layer (6) is sand grains layer (5), at sand grains layer (5) upper layer is one deck geotechnique layer of cloth (4), on geotechnological layer of cloth (4), be covered with macadam (3), on macadam (3), be stamped another geotechnological layer of cloth (41), at another geotechnological layer of cloth (41) upper layer is graded broken stone base (2), is that asphalt concrete pavement and pitch are disposed basic unit (1) on graded broken stone base (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201452557U CN201258447Y (en) | 2008-08-20 | 2008-08-20 | Asphalt concrete pavement water damage prevention composite structure for moist area |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201452557U CN201258447Y (en) | 2008-08-20 | 2008-08-20 | Asphalt concrete pavement water damage prevention composite structure for moist area |
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| CN201258447Y true CN201258447Y (en) | 2009-06-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051848A (en) * | 2010-12-16 | 2011-05-11 | 河南省新开元路桥工程咨询有限公司 | HMA/CC (Hot-Mix Asphalt)/(Cement Concrete) composite type pavement structure and constructing method thereof |
| CN102260011A (en) * | 2011-05-18 | 2011-11-30 | 长沙理工大学 | Road surface runoff purification system |
| CN107740322A (en) * | 2017-09-19 | 2018-02-27 | 无锡市交通工程有限公司 | Pavement disease control structure and its construction method |
| CN112095652A (en) * | 2020-08-28 | 2020-12-18 | 中铁三局集团有限公司 | Construction method of assembly type beam lifter foundation for high-speed railway box girder yard |
| CN112281573A (en) * | 2020-09-19 | 2021-01-29 | 中煤东方市政建设集团有限公司 | Municipal road water passing asphalt concrete pavement structure and construction method |
-
2008
- 2008-08-20 CN CNU2008201452557U patent/CN201258447Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051848A (en) * | 2010-12-16 | 2011-05-11 | 河南省新开元路桥工程咨询有限公司 | HMA/CC (Hot-Mix Asphalt)/(Cement Concrete) composite type pavement structure and constructing method thereof |
| CN102051848B (en) * | 2010-12-16 | 2012-08-22 | 河南省新开元路桥工程咨询有限公司 | HMA/CC (Hot-Mix Asphalt)/(Cement Concrete) composite type pavement structure and constructing method thereof |
| CN102260011A (en) * | 2011-05-18 | 2011-11-30 | 长沙理工大学 | Road surface runoff purification system |
| CN102260011B (en) * | 2011-05-18 | 2013-07-03 | 长沙理工大学 | Road surface runoff purification system |
| CN107740322A (en) * | 2017-09-19 | 2018-02-27 | 无锡市交通工程有限公司 | Pavement disease control structure and its construction method |
| CN112095652A (en) * | 2020-08-28 | 2020-12-18 | 中铁三局集团有限公司 | Construction method of assembly type beam lifter foundation for high-speed railway box girder yard |
| CN112281573A (en) * | 2020-09-19 | 2021-01-29 | 中煤东方市政建设集团有限公司 | Municipal road water passing asphalt concrete pavement structure and construction method |
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