CN106087639A - A kind of highway, Irish bridge structure and Irish bridge construction method - Google Patents
A kind of highway, Irish bridge structure and Irish bridge construction method Download PDFInfo
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- CN106087639A CN106087639A CN201610667658.7A CN201610667658A CN106087639A CN 106087639 A CN106087639 A CN 106087639A CN 201610667658 A CN201610667658 A CN 201610667658A CN 106087639 A CN106087639 A CN 106087639A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/16—Reinforcements
- E01C11/18—Reinforcements for cement concrete pavings
- E01C11/185—Reinforcements for cement concrete pavings the reinforcements extending up to the surface, e.g. anti-slip gratings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
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- Architecture (AREA)
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- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of highway, Irish bridge structure and Irish bridge construction method, combined by the making of each hierarchical structure, and stability waterproof by raising extends the service life of Irish bridge, the security performance improving Guo Shui highway and stability in use.Dew stone cement concrete layer remains to keep preferable antiskid performance after crossing water, improves travel safety.Anti-impact brush-type cement stabilized macadam layer scour resistance is good, and intensity is higher；Framework compact type cement stabilized macadam layer intensity is higher, good stability, and both are for revealing the supporting course that stone cement concrete layer provides stable.After laying composite geo-membrane in the middle of Base with Sand Gravel Cushion, can effectively stop the erosion of subsoil water.At pitch table, layer can effectively stop and is trapped in oozing under water in longitudinal joint and transverse joint set by dew stone cement concrete layer, can play waterproof action and can improve again the planarization of dew stone cement concrete layer.
Description
Technical field
The invention belongs to highway engineering field, be specifically related to a kind of highway and Irish bridge structure, more specifically it is
A kind of highway being applicable to mountain area and Irish bridge structure.
Background technology
The mountain region of China, plateau and hills account for the 67% of the land gross area.When building highway in mountain area, due to its route
The landform walking corridor is complex, is commonly formed seasonal irrigation canals and ditches.These seasonal irrigation canals and ditches are the most anhydrous or the water yield few, the most only
When rainy season, flow is the most abundant.For saving cost or as temporary work, highway geometry is adopted when passing through these irrigation canals and ditches sometimes
Take this scheme of Irish bridge, it may be assumed that this road section surface is arranged on trench bottom, be normal road surface time general, during flood,
Allow current long period dipped this road section surface.
According to previous experiences, if this road section surface uses the pavement structure identical with common section, the seasonality of irrigation canals and ditches
Cross water this road section surface can the most significantly be washed away and destroy.In the course of time, the antiskid performance of this road section surface significantly reduces,
Affect traffic safety.At this, Irish bridge is immersed in below the water surface during flood, and downstream is easily washed.Additionally, on cold ground
District is by Effect of Underground Water Level, and the destruction situations such as frost heave the most easily occurs in Irish bridge.
The current Pavement Design specification of China (includes " bituminous pavement design for highway specification (JTG D50-2006) " and " public
Road Cement Concrete Pavement Design specification (JTG D40-2011) ") also have no the clear stipulaties to Irish bridge, about crossing water route
The concrete structure research in face is actually rare.
Summary of the invention:
It is an object of the invention to provide a kind of highway and Irish bridge structure, it is possible to solve the antiskid performance fall of Irish bridge
Low, easily the problem such as be washed, meet the needs of engineering specific road section, to overcome problem present in background technology.
To achieve these goals, the technical scheme is that
A kind of highway Irish bridge structure, including:
It is arranged at the Base with Sand Gravel Cushion above soil matrix layer, is arranged at the cement stabilized macadam layer above Base with Sand Gravel Cushion, is arranged at
Dew stone cement concrete layer above cement stabilized macadam layer；
Joint face between dew stone cement concrete layer and cement stabilized macadam layer is provided with layer at pitch table；
Base with Sand Gravel Cushion includes the first Base with Sand Gravel Cushion and the second Base with Sand Gravel Cushion, and the first Base with Sand Gravel Cushion is arranged at above soil matrix layer,
Second Base with Sand Gravel Cushion is arranged at above the first Base with Sand Gravel Cushion, and cement stabilized macadam layer is arranged at the top of the second Base with Sand Gravel Cushion, the
Joint face between one Base with Sand Gravel Cushion and the second Base with Sand Gravel Cushion is provided with composite geo-membrane.
It is preferred that cement stabilized macadam layer to include being arranged at the framework compact type cement stabilized macadam above the second Base with Sand Gravel Cushion steady
Given layer, and it is arranged at the anti-impact brush-type cement stabilized macadam layer of framework compact type cement stabilized macadam stabilized zone.
It is preferred that the thickness of framework compact type cement stabilized macadam stabilized zone is 15cm～20cm, anti-impact brush-type cement stabilizing is broken
The thickness of rock layers is 18～20cm.
It is preferred that the thickness of dew stone cement concrete layer is 20～24cm, the thickness of Base with Sand Gravel Cushion is 15～20cm, compound
The thickness of geomembrane is not less than 0.5mm.
It is preferred that the length of Irish bridge structure is not less than the width of Irish bridge, not less than 3s desin speed stroke
Length.
It is preferred that Irish bridge structure two ends and prevailing roadway junction are provided with expansion joint (E.J.)；On each bar expansion joint (E.J.) along its length
Uniform it is provided with several dowel steel；Expansion joint (E.J.) is arranged at.Dew stone cement concrete layer；Centrage along Irish bridge structure is provided with one
Bar runs through the longitudinal joint of Irish bridge structure, the most uniform on longitudinal joint is provided with several dowel steel；Longitudinal joint is arranged at dew stone
Cement concrete layer；Uniform and vertical and several contractings of Irish bridge structure centre line it are provided with along Irish bridge structure length direction
Seam, the length direction that the contracting of each bar is sewed on along contracting seam uniform is provided with several dowel steel；Contracting seams and is placed in dew stone cement concrete layer.
The present invention also provides for a kind of highway, and including Irish bridge structure, Irish bridge structure is above-mentioned Irish bridge structure.
The present invention also provides for a kind of Irish bridge construction method, at Irish bridge making Irish bridge structure, Irish bridge
The paving method of structure includes:
The first step, after completing the smooth compacting construction of soil matrix layer, making the first Base with Sand Gravel Cushion being compacted on soil matrix layer；
Second step, after completing the first step, after laying composite geo-membrane on the first Base with Sand Gravel Cushion, on composite geo-membrane upper berth
Build the second Base with Sand Gravel Cushion and be compacted；
3rd step, after completing second step, making framework compact type cement stabilized macadam layer pressing on the second Base with Sand Gravel Cushion
After reality, making antiscour type cement stabilized macadam layer being compacted on framework compact type cement stabilized macadam layer；
4th step, after completing the 3rd step, lays layer at pitch table on anti-impact brush-type cement stabilized macadam layer；
5th step, after completing the 4th step, at pitch table, on layer, making reveals stone cement concrete layer and is compacted.
It is preferred that the thickness sum of the first Base with Sand Gravel Cushion and the second Base with Sand Gravel Cushion making is 15～20cm, clay content is little
In 5%, the gravel particles content less than 0.075mm is less than 5%, and without flat-elongated particles thing；
The placement thickness of framework compact type cement stabilized macadam layer is 15cm～20cm, and within 7 days, compressive strength after immersion is not less than
2.5MPa；Cement uses 42.5 grades of Portland cements, and the dosage range of cement is 4%～5%；Maximum ballast grain sizes is little
In 31.5mm, and the stone contents that particle diameter is less than 4.75mm is not more than 35%；
The placement thickness of anti-impact brush-type cement stabilized macadam layer is 18～20cm, uses skeleton air gap type grating, leaching in seven days
Water comprcssive strength is not less than 4.0MPa, and cement uses 42.5 grades of Portland cements, and cement dose scope is 7%～8%；?
Big ballast grain sizes is not more than 26.5mm, and the stone contents that particle diameter is less than 0.075mm accounts for 3%～5%；
The placement thickness of dew stone cement concrete layer is 20～24cm, and the surface dew stone degree of depth uses not less than 2mm, cement
42.5 grades of road portland cements, dew stone agent every square metre uses 250～350g；
At pitch table, the placement thickness of layer is not less than 1.5cm, uses double-deck layer spread method to carry out making；
The thickness of composite geo-membrane is not less than 0.5mm.
It is preferred that the length of the Irish bridge structure of making is not less than the width of highway flow surface, and design not less than 3s
The length of speed stroke；
Expansion joint (E.J.) is set in Irish bridge structure two ends and prevailing roadway junction, each bar expansion joint (E.J.) is the most all laid
Put several dowel steel；
Centrage along Irish bridge structure arranges a longitudinal joint running through Irish bridge structure, along length side on longitudinal joint
To uniform, several dowel steel is set；
Uniform along Irish bridge structure length direction vertical several contractings with Irish bridge structure centre line are set stitch, respectively
The length direction that bar contracting is sewed on along contracting seam uniform arranges several dowel steel.
Expansion joint (E.J.), longitudinal joint and contracting seam are arranged at revealing on stone cement concrete layer.
The beneficial effects of the present invention is: highway and the Irish bridge structure of the present invention are tied by the making of each hierarchical structure
Closing, and stability waterproof by raising extends the service life of Irish bridge, the security performance improving Guo Shui highway and use
Stability.Dew stone cement concrete layer remains to keep preferable antiskid performance after crossing water, improves travel safety.Anti-impact brush-type
Cement stabilized macadam layer scour resistance is good, and intensity is higher；Framework compact type cement stabilized macadam layer intensity is higher, stability
Good, both are for revealing the supporting course that stone cement concrete layer provides stable.After laying composite geo-membrane in the middle of Base with Sand Gravel Cushion, can be effective
Stop the erosion of subsoil water.At pitch table, layer can effectively stop and is trapped in longitudinal joint and transverse joint set by dew stone cement concrete layer
Ooze under water, waterproof action can be played and can improve again the planarization of dew stone cement concrete layer.Construction method pin of the present invention
To designed by said structure, extend the service life of Irish bridge, raising also for and stability waterproof by raising
The security performance of Guo Shui highway and stability in use.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the embodiment of the present invention,
Fig. 2 is the plan structure schematic diagram of the embodiment of the present invention.
In figure: 1-Base with Sand Gravel Cushion, 1.1-the first Base with Sand Gravel Cushion, 1.2-the second Base with Sand Gravel Cushion, 2-cement stabilized macadam layer,
2.1-framework compact type cement stabilized macadam layer, 2.2-anti-impact brush-type cement stabilized macadam layer, 3-reveals stone cement concrete layer, 4-
Composite geo-membrane, layer at 5-pitch table, 6-soil matrix layer, 7-expansion joint (E.J.), 8-longitudinal joint, 9-contracts seam, 10-dowel steel, 11-prevailing roadway.
Detailed description of the invention
The present invention is described further with embodiment below in conjunction with the accompanying drawings.
Embodiment one
The embodiment of the present invention provides a kind of highway Irish bridge structure, and this Irish bridge structure includes being arranged at soil matrix layer 6
The Base with Sand Gravel Cushion 1 of top, is arranged at the cement stabilized macadam layer 2 above Base with Sand Gravel Cushion 1, is arranged on cement stabilized macadam layer 2
The dew stone cement concrete layer 3 of side；
The thickness of Base with Sand Gravel Cushion 1 is 15～20cm, and clay content is not more than 5%, without flat-elongated particles, less than 0.075mm's
Gravel particles content is less than 5%.
The Base with Sand Gravel Cushion 1 of the present embodiment includes the first Base with Sand Gravel Cushion 1.1 and the second Base with Sand Gravel Cushion 1.2, gross thickness of two-layer
For 20cm, the first Base with Sand Gravel Cushion 1.1 is arranged at above soil matrix layer 6, and the second Base with Sand Gravel Cushion 1.2 is arranged at the first Base with Sand Gravel Cushion 1.1
Top, cement stabilized macadam layer 2 is arranged at the top of the second Base with Sand Gravel Cushion 1.2, the first Base with Sand Gravel Cushion 1.1 and the second Base with Sand Gravel Cushion
Joint face between 1.2 is provided with composite geo-membrane 4.
The thickness of composite geo-membrane 4 is not less than 3500N not less than 0.5mm, CBR bursting strength.Composite geo-membrane 4 can be effective
Stop the erosion of subsoil water, reduce the water infringement to basic unit.
It is stable that cement stabilized macadam layer 2 includes being arranged at the framework compact type cement stabilized macadam above the second Base with Sand Gravel Cushion 1.2
Layer, and it is arranged at the anti-impact brush-type cement stabilized macadam layer 2.2 of framework compact type cement stabilized macadam stabilized zone；
The thickness of framework compact type cement stabilized macadam stabilized zone is 15cm～20cm, and within 7 days, compressive strength after immersion is not less than
2.5MPa；Cement uses 42.5 grades of Portland cements, and dosage control is 4%～5%；The particle diameter of maximum gravel particle is little
In 31.5mm, the particle diameter stone contents less than 4.75mm is not more than 35%.
The thickness of anti-impact brush-type cement stabilized macadam layer 2.2 is 18～20cm, uses skeleton air gap type grating, immersion in seven days
Comprcssive strength is not less than 4.0MPa；Cement uses 42.5 grades of Portland cements, and dosage control is 7%～8%；Maximum rubble
Particle diameter is not more than 26.5mm, and the particle diameter stone contents less than 0.075mm is 3%～5%.When dew stone cement concrete layer 3 crosses water,
Anti-impact brush-type cement stabilized macadam layer 2.2 remains to keep preferable scour resistance, it is ensured that the stability of basic unit.
The thickness of dew stone cement concrete layer 3 is 20～24cm, and the surface dew stone degree of depth is 2mm；Cement is 42.5 grades of roads
With portland cement, dew stone agent consumption is 250～350g/m2.Dew stone cement concrete layer 3 except meet code requirement curved draw strong
It is outside one's consideration, there is excellent antiskid and drainage performance, meet mountain highway and cross the requirement of water, improve service life of road surface simultaneously.
Joint face between dew stone cement concrete layer 3 and cement stabilized macadam layer 2 is provided with layer 5 at pitch table；Pitch table
The thickness of place's layer 5 is 1.5cm, uses double-deck layer spread method to carry out making.Have as layer at the pitch table of flexible layer 5 simultaneously and prevent
Road surface blends the feature improving dew stone cement concrete layer 3 planarization under water.
The length of the Irish bridge structure described in the present embodiment is not less than the width of Irish bridge (irrigation canals and ditches).Irish bridge
The length of structure is not less than the length of 3s desin speed stroke, it is ensured that the seriality of driving and comfortableness.
Irish bridge structure two ends and prevailing roadway 11 junction are provided with expansion joint (E.J.) 7；On each bar expansion joint (E.J.) 7 the most uniform
It is provided with several dowel steel 10；Expansion joint (E.J.) 7 is arranged at dew stone cement concrete layer 3.Each dowel steel 10 between on each expansion joint (E.J.) 7
Between spacing be 300mm.
Centrage along Irish bridge structure is provided with a longitudinal joint 8 running through Irish bridge structure, along length side on longitudinal joint 8
It is provided with several dowel steel 10 to uniform；Longitudinal joint 8 is arranged at dew stone cement concrete layer 3, on longitudinal joint 8 between each dowel steel 10
Spacing be 800mm.
Uniform and vertical and several contracting seams 9 of Irish bridge structure centre line it are provided with along Irish bridge structure length direction,
On each bar contracting seam 9, along contracting, the length direction stitching 9 is uniform is provided with several dowel steel 10；Contracting seam 9 is arranged at dew stony edema cement concrete
Layer 3.Described in each bar, the spacing between contracting seam 9 is 4m, and on each bar contracting seam 9, the spacing between set dowel steel 10 is 300mm.
The pull bar arranged by exposed-aggregate cement concrete longitudinal joint 8 and contracting seam 9, the dowel steel 10 of expansion joint (E.J.) 7 setting, it is ensured that
The Load-transfer Capacity of seam and the service life of raising pavement structure.
Embodiment two
A kind of highway, described highway includes Irish bridge structure, and this Irish bridge structure is water route excessively as described above
Face structure.
Embodiment three
A kind of Irish bridge construction method, in Irish bridge making Irish bridge structure, the making side of Irish bridge structure
Method includes:
The first step, after completing soil matrix layer 6 smooth compacting construction, making the first Base with Sand Gravel Cushion 1.1 pressing on soil matrix layer 6
Real；
Second step, after completing the first step, after laying composite geo-membrane 4 on the first Base with Sand Gravel Cushion 1.1, at composite geo-membrane
Making the second Base with Sand Gravel Cushion 1.2 being compacted on 4；
The thickness sum of the first Base with Sand Gravel Cushion 1.1 and the second Base with Sand Gravel Cushion 1.2 making is 15～20cm, and clay content is not more than
5%, the grit content less than 0.075mm is less than 5%, and without flat-elongated particles；The thickness of composite geo-membrane 4 is not less than 0.5mm.
3rd step, after completing second step, making framework compact type cement stabilized macadam layer on the second Base with Sand Gravel Cushion 1.2
2.1 and after being compacted, making antiscour type cement stabilized macadam layer 2.2 pressing on framework compact type cement stabilized macadam layer 2.1
Real；
The placement thickness of framework compact type cement stabilized macadam stabilized zone is 15cm～20cm, and within 7 days, compressive strength after immersion is not less than
2.5MPa, cement uses 42.5 grades of Portland cements, and dosage range is 4%～5%；Maximum ballast grain sizes is not more than
31.5mm, the particle diameter gravel particle content less than 4.75mm is not more than 35%；
The placement thickness of anti-impact brush-type cement stabilized macadam layer 2.2 is 18～20cm, employing skeleton air gap type grating, seven days
Compressive strength after immersion is not less than 4.0MPa, and cement uses 42.5 grades of Portland cements, and dosage range is 7%～8%；Maximum
Ballast grain sizes is not more than 26.5mm, and the particle diameter gravel particle content less than 0.075mm accounts for 3%～5%；
4th step, after completing the 3rd step, lays layer 5 at pitch table on anti-impact brush-type cement stabilized macadam layer 2.2；
At pitch table, the placement thickness of layer 5 is not less than 1.5cm, uses double-deck layer spread method to carry out making；
5th step, after completing the 4th step, at pitch table, on layer 5, making reveals stone cement concrete layer 3 and is compacted.
The placement thickness of dew stone cement concrete layer 3 is 20～24cm, and the surface dew stone degree of depth uses not less than 2mm, cement
42.5 grades of road portland cements, dew stone agent every square metre uses 250～350g；
The length of the Irish bridge structure of the present embodiment making is not less than the width of highway flow surface, and designs not less than 3s
The length of speed stroke, it is ensured that the seriality of driving and comfortableness.
In Irish bridge structure two ends and prevailing roadway 11 junction, expansion joint (E.J.) 7 is set, the most equal on each bar expansion joint (E.J.) 7
Cloth arranges several dowel steel 10；The spacing between each dowel steel 10 between on each expansion joint (E.J.) 7 is 300mm.
Centrage along Irish bridge structure arranges a longitudinal joint 8 running through Irish bridge structure, along length on longitudinal joint 8
Direction is uniform arranges several dowel steel 10；On longitudinal joint 8, the spacing between each dowel steel 10 is 800mm.
Uniform along Irish bridge structure length direction vertical and several contracting seams 9 of Irish bridge structure centre line are set,
On each bar contracting seam 9, along contracting, the length direction stitching 9 is uniform arranges several dowel steel 10.Described in each bar, the spacing between contracting seam 9 is 4m,
On each bar contracting seam 9, the spacing between set dowel steel 10 is 300mm.
Expansion joint (E.J.) 7, longitudinal joint 8 and contracting seam 9 are arranged at revealing on stone cement concrete layer 3.Pass through exposed-aggregate cement concrete
The dowel steel 10 that pull bar that longitudinal joint 8 is arranged and contracting seam 9, expansion joint (E.J.) 7 are arranged, it is ensured that the Load-transfer Capacity of seam and raising pavement structure
Service life.
Following functional parameter can be reached by Irish bridge structure of the present invention, highway and construction method
Standard, as shown in the table:
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of claims of the present invention.This specification is retouched in detail
That states partly belongs to prior art known to professional and technical personnel in the field.
Claims (10)
1. a highway Irish bridge structure, it is characterised in that including:
It is arranged at the Base with Sand Gravel Cushion (1) of soil matrix layer (6) top, is arranged at the cement stabilized macadam of described Base with Sand Gravel Cushion (1) top
Layer (2), is arranged at dew stone cement concrete layer (3) of described cement stabilized macadam layer (2) top；
Joint face between described dew stone cement concrete layer (3) and described cement stabilized macadam layer (2) is provided with layer at pitch table
(5)；
Described Base with Sand Gravel Cushion (1) includes the first Base with Sand Gravel Cushion (1.1) and the second Base with Sand Gravel Cushion (1.2), described first Base with Sand Gravel Cushion
(1.1) being arranged at described soil matrix layer (6) top, described second Base with Sand Gravel Cushion (1.2) is arranged at described first Base with Sand Gravel Cushion (1.1)
Top, described cement stabilized macadam layer (2) is arranged at the top of described second Base with Sand Gravel Cushion (1.2), described first Base with Sand Gravel Cushion
(1.1) joint face and between described second Base with Sand Gravel Cushion (1.2) is provided with composite geo-membrane (4).
A kind of highway Irish bridge structure the most according to claim 1, it is characterised in that: described cement stabilized macadam layer
(2) include the framework compact type cement stabilized macadam stabilized zone being arranged at described second Base with Sand Gravel Cushion (1.2) top, and be arranged at skeleton
Anti-impact brush-type cement stabilized macadam layer (2.2) of compact-type cement stabilized macadam stabilized zone.
A kind of highway Irish bridge structure the most according to claim 2, it is characterised in that: described framework compact type cement is broken
The thickness of stone stabilized zone is 15cm～20cm, and the thickness of described anti-impact brush-type cement stabilized macadam layer (2.2) is 18～20cm.
A kind of highway Irish bridge structure the most according to claim 3, it is characterised in that: dew stone cement concrete layer (3)
Thickness be 20～24cm, the thickness of described Base with Sand Gravel Cushion (1) is 15～20cm, and the thickness of described composite geo-membrane (4) is the least
In 0.5mm.
5. according to a kind of highway Irish bridge structure described in any one of claim 1-4, it is characterised in that: described Irish bridge
The length of structure is not less than the width of described Irish bridge, not less than the length of 3s desin speed stroke.
A kind of highway Irish bridge structure the most according to claim 5, it is characterised in that: described Irish bridge structure two ends
It is provided with expansion joint (E.J.) (7) with prevailing roadway (11) junction；The most uniform on expansion joint (E.J.) (7) described in each bar it is provided with several power transmission
Bar (10)；Described expansion joint (E.J.) (7) is arranged at described.Dew stone cement concrete layer (3)；Centrage along described Irish bridge structure sets
There is a longitudinal joint running through described Irish bridge structure (8), the most uniform on described longitudinal joint (8) be provided with several power transmission
Bar (10)；Described longitudinal joint (8) is arranged at described dew stone cement concrete layer (3)；Set along described Irish bridge structure length direction
There are uniform and vertical several contractings seam (9) with described Irish bridge structure centre line, along described contracting seam in contracting seam (9) described in each bar
(9) length direction is uniform is provided with several dowel steel (10)；Described contracting seam (9) is arranged at described dew stone cement concrete layer
(3)。
7. a highway, including Irish bridge structure, it is characterised in that: described Irish bridge structure is to appoint in claim 1-6
One described Irish bridge structure.
8. an Irish bridge construction method, it is characterised in that in described Irish bridge making Irish bridge structure, described water excessively
The paving method of pavement structure includes:
The first step, after completing soil matrix layer (6) smooth compacting construction, at the upper making the first Base with Sand Gravel Cushion (1.1) of described soil matrix layer (6)
And be compacted；
Second step, after completing the first step, after laying composite geo-membrane (4) on described first Base with Sand Gravel Cushion (1.1), described multiple
Close the upper making the second Base with Sand Gravel Cushion (1.2) of geomembrane (4) and be compacted；
3rd step, after completing second step, at the upper making framework compact type cement stabilized macadam layer of described second Base with Sand Gravel Cushion (1.2)
(2.1) and after being compacted, at the upper making antiscour type cement stabilized macadam layer of described framework compact type cement stabilized macadam layer (2.1)
And be compacted (2.2)；
4th step, after completing the 3rd step, layer (5) at described anti-impact brush-type cement stabilized macadam layer (2.2) upper laying pitch table；
5th step, after completing the 4th step, at described pitch table, the upper making of layer (5) reveals stone cement concrete layer (3) and is compacted.
A kind of Irish bridge construction method the most according to claim 8, it is characterised in that:
The thickness sum of described first Base with Sand Gravel Cushion (1.1) and described second Base with Sand Gravel Cushion (1.2) making is 15～20cm, containing mud
Amount is not more than 5%, and the gravel particles content less than 0.075mm is less than 5%, and without flat-elongated particles thing；
The placement thickness of framework compact type cement stabilized macadam stabilized zone is 15cm～20cm, and within 7 days, compressive strength after immersion is not less than
2.5MPa；Cement uses 42.5 grades of Portland cements, and the dosage range of described cement is 4%～5%；Maximum ballast grain sizes
It is not more than 31.5mm, and the stone contents that particle diameter is less than 4.75mm is not more than 35%；
The placement thickness of anti-impact brush-type cement stabilized macadam layer (2.2) is 18～20cm, uses skeleton air gap type grating, leaching in seven days
Water comprcssive strength is not less than 4.0MPa, and cement uses 42.5 grades of Portland cements, described cement dose scope 7%～
8%；Maximum ballast grain sizes is not more than 26.5mm, and the stone contents that particle diameter is less than 0.075mm accounts for 3%～5%；
The placement thickness of dew stone cement concrete layer (3) is 20～24cm, and the surface dew stone degree of depth uses not less than 2mm, cement
42.5 grades of road portland cements, dew stone agent every square metre uses 250～350g；
At pitch table, the placement thickness of layer (5) is not less than 1.5cm, uses double-deck layer spread method to carry out making；
The thickness of composite geo-membrane (4) is not less than 0.5mm.
A kind of Irish bridge construction method the most according to claim 9, it is characterised in that:
The length of the described Irish bridge structure of making is not less than the width of highway flow surface, and is not less than 3s desin speed stroke
Length；
Expansion joint (E.J.) (7) is set in described Irish bridge structure two ends and prevailing roadway (11) junction, the upper edge of expansion joint (E.J.) (7) described in each bar
Length direction is uniform arranges several dowel steel (10)；
Centrage along described Irish bridge structure arranges a longitudinal joint (8) running through described Irish bridge structure, described vertical
On seam (8) the most uniform several dowel steel (10) is set；
Uniform along described Irish bridge structure length direction vertical several contracting seams with described Irish bridge structure centre line are set
(9), several dowel steel (10) is set the upper length direction stitching (9) along described contracting of contracting seam (9) described in each bar is uniform.
Described expansion joint (E.J.) (7), described longitudinal joint (8) and described contracting seam (9) are arranged on described dew stone cement concrete layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610667658.7A CN106087639A (en) | 2016-08-15 | 2016-08-15 | A kind of highway, Irish bridge structure and Irish bridge construction method |
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| CN110241678A (en) * | 2019-06-27 | 2019-09-17 | 安徽劲帆建设有限公司 | A kind of nearly water pavement structure and its construction method |
| CN111648200A (en) * | 2020-05-28 | 2020-09-11 | 中冶南方城市建设工程技术有限公司 | Cross-road pavement structure and construction method thereof |
| 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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| CN111648200A (en) * | 2020-05-28 | 2020-09-11 | 中冶南方城市建设工程技术有限公司 | Cross-road pavement structure and construction method thereof |
| 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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