CN101831855A - Waterproof pavement structure and construction method thereof - Google Patents
Waterproof pavement structure and construction method thereof Download PDFInfo
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- CN101831855A CN101831855A CN201010132668A CN201010132668A CN101831855A CN 101831855 A CN101831855 A CN 101831855A CN 201010132668 A CN201010132668 A CN 201010132668A CN 201010132668 A CN201010132668 A CN 201010132668A CN 101831855 A CN101831855 A CN 101831855A
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Abstract
The invention provides a waterproof pavement structure and a construction method thereof. The waterproof pavement structure comprises a finishing coat, a basement layer, a water draining bedding layer and a roadbed from top to bottom, wherein a waterproof layer is arranged between the basement layer and the water draining bedding layer, the waterproof layer is naturally separated from the basement layer and the water draining bedding layer, and a permeable filter layer is arranged between the water draining bedding layer and the roadbed. The construction method of the structure comprises the step of: sequentially paving the roadbed, the permeable filter layer, the water draining bedding layer, the waterproof layer, the basement layer and the finishing layer from bottom to top. The pavement structure can effectively prevent the pavement and the road bed from the damages of road surface water and ground water, thereby prolonging the service life of the road.
Description
Technical field
The present invention relates to a kind of road structure and job practices thereof, especially a kind of waterproof pavement structure and job practices thereof.
Background technology
In fields such as road, airfield runway and urban operating mechanisms, pavement life shortens a great problem that has become in the construction.Cause the reason of road surface early damage, the lost of life to have many.Wherein, studies show that " water is the dead enemy ".According to the source of water, the road surface damage by water is bad can be divided into two kinds of the bad and underground water damages of road table damage by water.
Road table damage by water is bad, mainly be show the way the table water (as rainwater) enter surface layer inside by surface layer hole, seam or crack, cause the surface material damage by water bad, water further infiltrates basic unit, cause basic unit to move the water erosion damage, and between surface layer and basic unit, form non-homogeneous coming to nothing and non-homogeneous supporting, for asphalt concrete pavement, the moving water of interlayer washes away the adhesion stress that also can weaken surface layer and basic unit, is unfavorable for that asphalt concrete pavement is stressed.When water further infilters into roadbed down again, if subgrade drainage is bad then to make it be immersed in water for a long time, roadbed material intensity and bullet mould reduce, and easily cause the roadbed unstability, then cause basic unit's depression, fracture, cause surface layer purt mud phenomenon, depression and rupture failure to occur at last.Solve road table damage by water bad aspect, existing road surface has the measure that porous draining basic unit is set between surface layer and basic unit, the road table water that infiltrates basic unit is discharged beyond the road surface, and obtained effect preferably.
Underground water damages, and is meant big roadbed soil of humidity or the higher area of groundwater table, and the water in roadbed soil, roadbed bottom or the cut slope enters the pavement destruction that road structure inside causes by capillarity or side direction seepage flow.Underground water corrodes basic unit for a long time, weakens the bulk strength of subbase, basic unit, reduces the bullet mould of base material, and influence of dynamic water also can quicken basic unit's destruction simultaneously, thereby causes top course depression, rupture failure.In addition, when underground water enters road structure inside, under the continuous extruding of carload especially heavy duty, also can attach a small amount of roadbed fine grained soils, cause the roadbed fine grained soils to run off, the roadbed bulk strength reduces and influences the road structure bearing capacity, and the roadbed fine grained soils also can cause the road surface purt mud phenomenon frequently to occur with the subsidiary rising of water, the fine grained soils that rises also can stop up the drainage blanket passage, causes impeded drainage.In addition, at northern extremely frigid zones, underground water also can cause the frost heaving failure of roadbed, has aggravated the reduction of service life of road surface.Exist countless capillary tubies in the subgrade soils, underground water can rise to roadbed inside by the capillary tube in the roadbed, especially in the winter time, and when the atmosphere subzero temperature imports into underground, Free water in the face of land is the glaciation crystal at first, along with the continuation decline of temperature, the outermost layer of water of hydration also begins to freeze, and ice crystal is enlarged gradually, and in soil layer, form ice band, the freezing back of moisture volume will increase, and the soil body is swelled along with expanding, and frost heaving occur.Particulate is many more in soil, and the capillary tube of formation is just many more, and is also big more to the frost heave influence of roadbed.Therefore must effectively stop the structural damage of underground water road pavement.
The existing measure that stops underground water to enter ground mainly contains: the first, drainage blankets such as gravel, honeycombed cement stabilization gravel are set, and this measure can reduce capillary tube, controls phreatic rising quantity.But still have part water to continue to rise to road structure inside by capillarity.Simultaneously, in the higher highway section of groundwater table, because roadbed is in dampness for a long time, the continuous vibration effect of traffic load will make that the roadbed soil property is softening, soil particle attenuates, and the subsidiary roadbed fine grained soils of underground infiltration rises under load vibration extruding.The roadbed fine grained soils rises to bed course and brings two adverse consequences: the one, and the roadbed fine grained soils runs off, and causes subgrade soils intensity to reduce, and causes pavement depression and destroys; The 2nd, the roadbed fine grained soils rises and fills the hole of drainage blanket, easily causes bedding course drainage not smooth, and owing to the bed course porosity diminishes, capillary tube attenuates, it is big that rise waterborne becomes, and strengthened the capillarity of water, and underground water is easier to rise to basic unit even surface layer by capillarity.Basic unit on the bed course all is stabilized with inorganic binder pellet semi-rigid type base basically, himself be difficult to stop fully the infiltration of water, and drying shrinkage and warm draw line ubiquity, these are carried secretly by capillarity to underground water undoubtedly, and the roadbed fine grained soils rises to basic unit together and surface layer provides passage, causes basic unit, surface layer damage by water evil idea and mud pumping phenomenon thus.Simultaneously, the construction quality of honeycombed cement stabilization gravel class drainage blanket requires high, and the system of mixing of drainage blanket compound is high especially to the requirement of water supply volume, and is if water supply volume is too small, loose easily when rolling compound; If water supply volume is excessive, segregation phenomenon then appears easily, and construction control is bad, will influence its drainage effect, and porosity reduces provides capillary channel.The second, in the winter of northern extremely frigid zones,, adopt usually and change the way of banketing for solving the roadbed frost heaving failure, promptly water good stability, non-heaving soil or weak swelling soil change the top of filling out roadbed, as sand, gravel, slag etc.Adopt this measure can alleviate the frost heave degree of roadbed greatly, but the problem that exists is that because the rising of capillary water, underground water still can cause the frost heaving failure of road structure inside.Even drainage blanket is set again, capillary water also can infiltrate in the bed course and congeal into ice, and causes the bed course frost heaving.Bed course generation frost-heaving deformation, basic unit be must be subjected to and its vertical direction and the tangential constraint of interlayer given, this constraint is strong more, the restraint forces that bed course is subjected to is just big more, correspondingly, the reaction force that bed course gives basic unit is also just big more, and this reaction force comprises extruding force and interlayer tangential shearing or the frictional force (to basic unit, this shearing or frictional force performance be basic unit bottom tension) of bed course for basic unit.Semi-rigid sub-base material has high compression strength, can resist the compressive stress that extruding force produces, but, the tensile strength of semi-rigid sub-base material is less, the interlayer tangential force makes basic unit's tension, and then can cause adverse effect to basic unit, even when this tensile stress reaches its tensile strength, base course crack occurs, cause pavement destruction.
Therefore need a kind of waterproof pavement structure and job practices thereof, can effectively stop underground water and the structural damage of Lu Biao water road pavement.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of waterproof pavement structure and job practices.This purpose is achieved through the following technical solutions: a kind of waterproof pavement structure, comprise surface layer, basic unit, drainage blanket and roadbed from top to bottom, fluid-tight waterproofing course is set between basic unit and the drainage blanket, waterproofing course and basic unit, the equal natural separation of drainage blanket are provided for filtering the permeable filtration beds of fine deposit between drainage blanket and the roadbed.
Further, described waterproofing course is the finished product thin layer soft material of thickness 0.1mm～0.5mm;
Further, described waterproofing course is waterproofing geomembrane, composite plastic woven cloth or plastic sheeting;
Further, described permeable filtration beds is the geotechnological layer of cloth of permeable filtration of thickness 0.5mm～2mm;
Further, described surface layer is asphalt concrete pavement, portland cement concrete surface layer, roller compacted concrete surface layer, modified concrete surface layer or fibrous concrete surface layer; Described basic unit is flexbile base, semi-rigid type base or rigid base; Described drainage blanket is pellet bed course, organic binder stable granulate bed course, stabilized with inorganic binder pellet bed course or mangcorn sarking;
Technical scheme of the present invention also comprises: a kind of job practices of waterproof pavement structure, making are in proper order: the first, and tamping road bed; The second, the smooth permeable filtration beds of laying on roadbed; The 3rd, making drainage blanket on smooth permeable filtration beds; The 4th, treat that after the complete moulding of drainage blanket making, smooth again laying waterproofing course makes natural separation between drainage blanket and the waterproofing course; The 5th, on smooth waterproofing course, repave and build basic unit, make natural separation between basic unit and the waterproofing course; The 6th, making surface layer in basic unit, thus form complete road structure.
Beneficial effect of the present invention is: first, permeable filtration beds is set between roadbed and drainage blanket, can guarantee underground water rise enter drainage blanket and discharge beyond the road surface in, the roadbed fine grained soils can be blocked effectively or particle is brought into drainage blanket by underground water, avoid the loss of roadbed fine grained soils or particle, reduce pavement depression, also can avoid roadbed fine grained soils or particle to stop up the hole of drainage blanket, cause impeded drainage.Second, be provided with between drainage blanket and the basic unit can with the flexible film class waterproof layer material of drainage blanket and basic unit's natural separation after, at first, having avoided waterproofing course contacts with basic unit and the direct of drainage blanket, the interlayer contact surface is more smooth relatively, reduced the frictional force between basic unit and the drainage blanket greatly, made when winter, water entered bed course generation frost-heaving deformation, the tangential effect of contraction of the interlayer of bed course and basic unit greatly alleviates, help bed course and basic unit is stressed, and can also avoid the damage of waterproof layer material.Secondly, because film class waterproofing course has certain adaptation deformation ability, can play the effect of stress absorption and compatible deformation, it is stressed to be beneficial to basic unit.Once more, because the setting of waterproofing course, stoping underground water further to rise to basic unit and surface layer fully, when effectively solving the underground water damage, pavement disease and the destruction problem that cause because of the underground water frost heave winter will significantly be reduced, simultaneously, can also stop road table water to enter roadbed fully, avoid the roadbed damage by water and the mud pumping phenomenon that cause thus by bed course.At last, owing to effectively stoped phreatic rising, because quality control on construction is bad causes under the situation that porosity reduces, can prevent that roadbed fine grained soils or particle from stopping up the existing hole of drainage blanket at drainage blanket, can not cause porosity further to reduce even stop up hole.The 3rd, in the job practices of the present invention,,, play the effect in front for the water vent of bed course so guaranteed the natural separation of drainage blanket and waterproofing course owing to after treating that drainage blanket is completed into, re-lay waterproofing course.The 4th, in the job practices of the present invention,,, play the effect in front for the water vent of bed course so guaranteed the natural separation of drainage blanket and waterproofing course owing to after treating that drainage blanket is completed into, re-lay waterproofing course.
Other advantages of the present invention, target and feature will be set forth in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can obtain instruction from the practice of the present invention to investigating hereinafter.
Description of drawings
Be described further below in conjunction with the road structure and the job practices thereof of drawings and Examples to the water layer of setting up defences on the bed course of the present invention, accompanying drawing is a structural representation of the present invention.
The specific embodiment
As shown in the figure, waterproof pavement structure of the present invention is followed successively by surface layer 1, basic unit 2, waterproofing course 3, drainage blanket 4, permeable filtration beds 5 and roadbed 6 from top to bottom.Surface layer 1 is one of asphalt concrete pavement, portland cement concrete surface layer, roller compacted concrete surface layer, modified concrete surface layer or fibrous concrete surface layer; Basic unit 2 is one of flexbile base, semi-rigid type base or rigid base; Waterproofing course 3 is one of waterproofing geomembrane, composite plastic woven cloth or plastic sheeting; Drainage blanket 4 is one of pellet bed course (the pellet bed course is bed courses such as common sand grains, rubble), organic binder stable granulate bed course, stabilized with inorganic binder pellet bed course or mangcorn sarking (the mangcorn sarking is the various mangcorn sarkings between pellet, organic binder stable granulate and the stabilized with inorganic binder pellet); Permeable filtration beds 5 is the geotechnological layer of cloth of permeable filtration; Equal natural separation between waterproofing course 3 and basic unit 2, the drainage blanket 4.
Concrete job practices of the present invention is: making is in proper order: the first, tamping road bed 6; The second, the smooth permeable filtration beds 5 of laying on roadbed 6; The 3rd, making drainage blanket 4 on smooth permeable filtration beds 5; The 4th, treat that after the complete moulding of drainage blanket 4 makings, smooth again laying waterproofing course 3 makes natural separation between drainage blanket 4 and the waterproofing course 3; The 5th, on smooth waterproofing course 3, repave and build basic unit 2, make natural separation between basic unit 2 and the waterproofing course 3; The 6th, making surface layer 1 in basic unit 2, thus form complete road structure.
Embodiment one, described surface layer 1 is the portland cement concrete surface layer, basic unit 2 is a semi-rigid type base, waterproofing course 3 is the waterproofing geomembrane of thickness 0.1mm, drainage blanket 4 is an organic binder stable granulate bed course, the geotechnological layer of cloth of permeable filtration that permeable filtration beds 5 is thickness 0.5mm can making waterproof pavement structure of the present invention according to aforementioned job practices.
Embodiment two, described surface layer 1 is an asphalt concrete pavement, basic unit 2 is a flexbile base, waterproofing course 3 is the plastic sheeting of thickness 0.5mm, drainage blanket 4 is a stabilized with inorganic binder pellet bed course, the geotechnological layer of cloth of permeable filtration that permeable filtration beds 5 is thickness 1.25mm can making waterproof pavement structure of the present invention according to aforementioned job practices.
Embodiment three, described surface layer 1 is the fibrous concrete surface layer, basic unit 2 is a flexbile base, waterproofing course 3 is the waterproofing geomembrane of thickness 0.3mm, drainage blanket 4 is the pellet bed course, the geotechnological layer of cloth of permeable filtration that permeable filtration beds 5 is thickness 2mm can making waterproof pavement structure of the present invention according to aforementioned job practices.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. waterproof pavement structure, comprise surface layer (1), basic unit (2), drainage blanket (4) and roadbed (6) from top to bottom, it is characterized in that: between basic unit (2) and the drainage blanket (4) fluid-tight waterproofing course (3) is set, waterproofing course (3) and basic unit (2), drainage blanket (4) be natural separation all, is provided for filtering the permeable filtration beds (5) of fine deposit between drainage blanket (4) and the roadbed (6).
2. waterproof pavement structure according to claim 1 is characterized in that: described waterproofing course (3) is the finished product thin layer soft material of thickness 0.1mm～0.5mm.
3. waterproof pavement structure according to claim 1 and 2 is characterized in that: described waterproofing course (3) is waterproofing geomembrane, composite plastic woven cloth or plastic sheeting.
4. waterproof pavement structure according to claim 1 is characterized in that: described permeable filtration beds (5) is the geotechnological layer of cloth of permeable filtration of thickness 0.5mm～2mm.
5. waterproof pavement structure according to claim 1 is characterized in that: described surface layer (1) is asphalt concrete pavement, portland cement concrete surface layer, roller compacted concrete surface layer, modified concrete surface layer or fibrous concrete surface layer; Described basic unit (2) is flexbile base, semi-rigid type base or rigid base; Described drainage blanket (4) is pellet bed course, organic binder stable granulate bed course, stabilized with inorganic binder pellet bed course or mangcorn sarking.
6. the job practices of the described waterproof pavement structure of claim 1, it is characterized in that: making is in proper order: the first, tamping road bed (6); The second, go up the smooth permeable filtration beds of laying (5) at roadbed (6); The 3rd, go up making drainage blanket (4) at smooth permeable filtration beds (5); The 4th, treat after the complete moulding of drainage blanket (4) making that smooth again laying waterproofing course (3) makes natural separation between drainage blanket (4) and the waterproofing course (3); The 5th, on smooth waterproofing course (3), repave and build basic unit (2), make natural separation between basic unit (2) and the waterproofing course (3); The 6th, go up making surface layer (1) in basic unit (2), thereby form complete road structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010132668 CN101831855B (en) | 2010-03-25 | 2010-03-25 | Waterproof pavement structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010132668 CN101831855B (en) | 2010-03-25 | 2010-03-25 | Waterproof pavement structure and construction method thereof |
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| CN101831855A true CN101831855A (en) | 2010-09-15 |
| CN101831855B CN101831855B (en) | 2013-02-06 |
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| CN 201010132668 Expired - Fee Related CN101831855B (en) | 2010-03-25 | 2010-03-25 | Waterproof pavement structure and construction method thereof |
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Cited By (12)
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| CN102182131A (en) * | 2011-04-02 | 2011-09-14 | 于曙银 | Water permeable paving plate and construction method thereof |
| CN102535298A (en) * | 2012-01-13 | 2012-07-04 | 鞍钢集团矿业公司 | Cement concrete roadway structure suitable for large-tonnage cars and construction method |
| CN103541287A (en) * | 2013-10-21 | 2014-01-29 | 马银华 | Pavement structure with comprehensive waterproof reinforced roadbed as well as construction method of pavement structure |
| CN103556558A (en) * | 2013-10-21 | 2014-02-05 | 马银华 | Pavement construction with hierarchically completely encapsulated roadbed and construction method thereof |
| CN105544341A (en) * | 2015-12-04 | 2016-05-04 | 东南大学 | Quick draining pavement structure for urban low-lying roads |
| CN106351103A (en) * | 2016-11-09 | 2017-01-25 | 苏谦 | Permeable pavement structure with high strength and high permeability and paving method thereof |
| CN109137668A (en) * | 2018-09-30 | 2019-01-04 | 广东中林建筑园林工程有限公司 | Town road structure and construction method |
| CN109487656A (en) * | 2018-09-27 | 2019-03-19 | 广西交通科学研究院有限公司 | A kind of concrete road surface structure and its method that paves |
| CN110644600A (en) * | 2019-09-27 | 2020-01-03 | 浙江万瑞建设有限公司 | Road drainage structure and construction method |
| CN111549607A (en) * | 2020-04-21 | 2020-08-18 | 北京智华通科技有限公司 | Environment-friendly high-performance long-life pavement structure and construction method |
| CN111648190A (en) * | 2020-04-25 | 2020-09-11 | 河南省金德园林绿化工程有限公司 | Asphalt concrete pavement and paving construction method thereof |
| WO2023093813A1 (en) * | 2021-11-26 | 2023-06-01 | 山东交通学院 | Intelligent subgrade humidity control and drainage device based on modified water-absorbent resin, and usage method therefor |
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| CN112127216B (en) * | 2020-09-30 | 2021-12-03 | 武汉理工大学 | Prefabricated assembly type asphalt substrate type ballastless track and construction method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182131A (en) * | 2011-04-02 | 2011-09-14 | 于曙银 | Water permeable paving plate and construction method thereof |
| CN102182131B (en) * | 2011-04-02 | 2012-10-31 | 于曙银 | Water permeable paving plate and construction method thereof |
| CN102535298A (en) * | 2012-01-13 | 2012-07-04 | 鞍钢集团矿业公司 | Cement concrete roadway structure suitable for large-tonnage cars and construction method |
| CN102535298B (en) * | 2012-01-13 | 2014-05-07 | 鞍钢集团矿业公司 | Cement concrete roadway structure suitable for large-tonnage cars and construction method |
| CN103541287A (en) * | 2013-10-21 | 2014-01-29 | 马银华 | Pavement structure with comprehensive waterproof reinforced roadbed as well as construction method of pavement structure |
| CN103556558A (en) * | 2013-10-21 | 2014-02-05 | 马银华 | Pavement construction with hierarchically completely encapsulated roadbed and construction method thereof |
| CN103556558B (en) * | 2013-10-21 | 2015-06-24 | 重庆交通大学 | Pavement construction with hierarchically completely encapsulated roadbed and construction method thereof |
| CN105544341A (en) * | 2015-12-04 | 2016-05-04 | 东南大学 | Quick draining pavement structure for urban low-lying roads |
| CN106351103A (en) * | 2016-11-09 | 2017-01-25 | 苏谦 | Permeable pavement structure with high strength and high permeability and paving method thereof |
| CN109487656A (en) * | 2018-09-27 | 2019-03-19 | 广西交通科学研究院有限公司 | A kind of concrete road surface structure and its method that paves |
| CN109137668A (en) * | 2018-09-30 | 2019-01-04 | 广东中林建筑园林工程有限公司 | Town road structure and construction method |
| CN110644600A (en) * | 2019-09-27 | 2020-01-03 | 浙江万瑞建设有限公司 | Road drainage structure and construction method |
| CN110644600B (en) * | 2019-09-27 | 2020-10-30 | 浙江万瑞建设有限公司 | Road drainage structure and construction method |
| CN111549607A (en) * | 2020-04-21 | 2020-08-18 | 北京智华通科技有限公司 | Environment-friendly high-performance long-life pavement structure and construction method |
| CN111648190A (en) * | 2020-04-25 | 2020-09-11 | 河南省金德园林绿化工程有限公司 | Asphalt concrete pavement and paving construction method thereof |
| WO2023093813A1 (en) * | 2021-11-26 | 2023-06-01 | 山东交通学院 | Intelligent subgrade humidity control and drainage device based on modified water-absorbent resin, and usage method therefor |
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