CN105780619B - Seashore soft base road structure - Google Patents
Seashore soft base road structure Download PDFInfo
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- CN105780619B CN105780619B CN201410852888.1A CN201410852888A CN105780619B CN 105780619 B CN105780619 B CN 105780619B CN 201410852888 A CN201410852888 A CN 201410852888A CN 105780619 B CN105780619 B CN 105780619B
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Abstract
The present invention provides a kind of seashore soft base road structure, including road main structure and road prevention structure；Road main structure includes clay roadbed, the quick lime bottom for being laid on clay roadbed upper end, the cement soil stabilization separation layer being laid on above quick lime bottom, the lime-soil base being laid on above cement soil stabilization separation layer, the cement solidification surface layer being laid on above lime-soil base；Road prevention structure includes the composite earthwork film layer for being set to clay roadbed side slope surface, set on the seat slurry brick laid on flat layer of composite earthwork film surface and set on the armored concrete town foot of clay roadbed side slope bottom；The upper end of composite earthwork film layer is pressed in the lower section of quick lime bottom, and the lower end of composite earthwork film layer is pressed in the lower section of armored concrete town foot.Seashore soft base road structure of the invention, intensity is high, durability is good, good economy performance.
Description
Technical field
The present invention relates to road structure technical fields, more particularly to a kind of seashore soft base road structure.
Background technique
With the development of economy, due to the finiteness of land resource, the step of the mankind is increasingly stepped to seashore shoal area
Into corresponding engineering project is also following, must build corresponding permanent or temporary road at this time.With Bohai and Yellow Seas etc.
For shoal area, geology surface layer is typical saturation cohesive soil soft base region, built on this weak soil permanent, temporary road without
Difficult degree is larger, if greatly improving corresponding highway layout grade, because of the reasons such as treatment of soft foundation, and the investment meeting of entire road
It increases significantly；If reducing corresponding highway layout grade simultaneously, it is contemplated that road side seawater position is high, and road is vehicle-mounted right
It is required in road capacity high, under the unfavorable factors such as the construction time is short, the road that part has been built often occurs and is often sent out
Raw big tidal level tidewater washes away, the road side soil body is rolled repeatedly by tidewater " emptying " and pavement structure by road is vehicle-mounted,
Phenomena such as forming " spring soil ", needs additional investment at this time, second consolidation is carried out to road, so that economy, applicability are very poor.
Summary of the invention
In view of the foregoing deficiencies of prior art, the technical problem to be solved in the present invention is that providing a kind of economy
Seashore soft base road structure good, intensity is high, durability is good, to overcome the drawbacks described above of the prior art.
In order to solve the above technical problem, the present invention provides a kind of seashore soft base road structures, including road main structure
With road prevention structure；
The road main structure includes clay roadbed, the quick lime bottom for being laid on clay roadbed upper end, is laid on life
Cement soil stabilization separation layer above lime bottom, is laid on the lime-soil base being laid on above cement soil stabilization separation layer
Cement solidification surface layer above lime-soil base；
The road prevention structure includes set on the composite earthwork film layer on clay roadbed side slope surface, set on composite geo-membrane
The seat slurry brick laid on flat layer of layer surface and the armored concrete town foot set on clay roadbed side slope bottom；The composite earthwork film layer
Upper end be pressed in the lower section of the quick lime bottom, the lower end of the composite earthwork film layer is pressed in armored concrete town foot
Lower section.
Preferably, the weight percent of cement is 6% in the cement soil stabilization separation layer.
Preferably, the weight percent of lime is 12% in the lime-soil base.
Preferably, the quick lime bottom with a thickness of 3cm.
Preferably, the cement soil stabilization separation layer with a thickness of 6cm.
Preferably, the lime-soil base with a thickness of 30cm, the lime-soil base is made of layered rolling technique
It forms, thickness in monolayer is not more than 10cm.
Preferably, the cement solidification surface layer with a thickness of 15cm -20cm, the cement solidification surface layer uses layered rolling
Technique is made, and thickness in monolayer is not more than 10cm.
Preferably, the cement solidification surface layer is that curing agent, cement, rubble and soil mix the surface layer to be formed, every cubic metre
Composition proportion are as follows: curing agent 0.24kg, cement 71.5kg, rubble 0.15m3, remaining is soil.
Preferably, the width of the composite earthwork film layer being pressed in below the quick lime bottom is 0.5m, described compound
The width for being pressed in armored concrete town underfooting side of geo membrane layers is also 0.5m.
As described above, seashore soft base road structure of the invention, has the advantages that
Quick lime bottom is layed in clay roadbed upper end, and the water content of road bed clay can be significantly reduced, and effectively hinders
Gear underground water penetrates into each structure sheaf of road from the bottom up；After cement soil stabilization separation layer reaches corresponding " age ", intensity phase
To larger, so that a solid foundation is provided for entire road, meanwhile, water blocking, antiseepage function are also relatively good, also effectively
Underground water is stopped to penetrate into each structure sheaf of road from the bottom up；The setting of lime-soil base and cement solidification surface layer makes seashore soft base
After road structure reaches certain " age ", pavement strength value is high；Composite earthwork film layer effectively prevents seawater from roadbed side
Slope penetrates into clay roadbed surface layer, significantly reduces the water content of road bed clay；Armored concrete town foot and seat slurry are flat
Layer of laying bricks effectively enhances the stability of clay roadbed；To keep intensity height, the durability of seashore soft base road good, and this hair
Bright road structure is simple, is convenient for construction, thus good economy performance.
Detailed description of the invention
Fig. 1 is shown as the schematic cross-sectional view of seashore soft base road structure of the invention.
Component label instructions
1 clay roadbed, 2 quick lime bottom
3 cement soil stabilization separation layer, 4 lime-soil base
5 cement solidification surface layer, 6 composite earthwork film layer
7 sit slurry 8 armored concrete town foot of brick laid on flat layer
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Please refer to Fig. 1.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The revealed content of specification is not intended to limit the invention enforceable so that those skilled in the art understands and reads
Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size,
It does not influence still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach
It obtains in the range of capable of covering.Meanwhile cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term, be merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or
Adjustment, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
In view of current shoal area, geology surface layer is typical saturation cohesive soil soft base region, is built on this weak soil
Permanently, temporary road difficulty is larger, if greatly improving corresponding highway layout grade, because of the reasons such as treatment of soft foundation, entirely
The investment of road can increase significantly；If reducing corresponding highway layout grade, it is contemplated that road side seawater position is high, path link
Driving, which carries, to be required road capacity high, and under the unfavorable factors such as the construction time is short, the road built part often occurs
Washed away by recurrent big tidal level tidewater, the road side soil body it is vehicle-mounted anti-by road by tidewater " emptying " and pavement structure
Phenomena such as rolling again, forming " spring soil ", needs additional investment at this time, second consolidation is carried out to road, thus economy, applicability
It is very poor.The present inventor designs a kind of seashore soft base road structure, by being successively laid with raw stone in clay road bed
Grey bottom, cement soil stabilization separation layer, lime-soil base, cement solidification surface layer, and road prevention is set in clay roadbed side slope
Structure, makes that the intensity of seashore soft base road is high, durability is good, good economy performance.
Hereinafter, by seashore soft base road structure of the invention is described in detail by specific embodiment.
As shown in Figure 1, a kind of seashore soft base road structure, including road main structure and road prevention structure.
The road main structure includes clay roadbed 1, the quick lime bottom 2 for being laid on 1 upper end of clay roadbed, is laid on
The cement soil stabilization separation layer 3 of the top of quick lime bottom 2, the lime-soil base 4 for being laid on 3 top of cement soil stabilization separation layer,
It is laid on the cement solidification surface layer 5 of 4 top of lime-soil base.
The road prevention structure includes set on the composite earthwork film layer 6 on 1 side slope surface of clay roadbed, set on composite earthwork
The seat slurry brick laid on flat layer 7 on 6 surface of film layer and the armored concrete town foot 8 set on 1 side slope bottom of clay roadbed；The composite earth
The upper end of work film layer 6 is pressed in the lower section of the quick lime bottom 2, and it is mixed that the lower end of the composite earthwork film layer 6 is pressed in the reinforcing bar
The lower section of the town Ning Tu foot 8.
The quick lime bottom 2 is pure quick lime layer, and the thickness of the quick lime bottom 2 is preferably 3cm.The quick lime
Bottom 2 is laid on the upper end of clay roadbed 1, and the cohesive soil mix that can ted with roadbed top rolls, because being located in seashore
High water level region, even if suitably tedding, the water content of cohesive soil is not still low, and pure quick lime layer can be sent out with the water in cohesive soil
Biochemical reaction, to significantly reduce the water content of road bed cohesive soil；Roadbed surface layer and carbonate-free lime mix simultaneously form stone
The higher rendzinas of ash content, water blocking antiseepage function is also relatively better, effectively underground water can be stopped to permeate from the bottom up
To the other structures layer of seashore soft base road.
The weight percent of cement is 6% in the cement soil stabilization separation layer 3, i.e., by 6% cement and 94% soil
The separation layer to be formed is mixed, the thickness of the cement soil stabilization separation layer 3 is preferably 6cm.Such proportion and thickness setting, make
After the cement soil stabilization separation layer 3 reaches certain " age ", intensity is larger, can be provided for entire road one it is solid
Basis；Meanwhile water blocking antiseepage function is also relatively better, and underground water can effectively be stopped to infiltrate into other road knots from the bottom up
Structure layer.
The weight percent of lime is 12% in the lime-soil base 4, i.e., is mixed by 12% lime and 88% soil
The thickness of the base of formation, the lime-soil base 4 is preferably 30cm, and the lime-soil base 4 uses layered rolling technique system
It forms, thickness in monolayer is not more than 10cm.The lime-soil base 4 forms the principal structural layer of road main structure.Even if having
A small amount of underground water penetrates into lime-soil base 4 from the bottom up, and chemistry hair can also occur with water for the quick lime in lime-soil base 4
It answers, white lime is generated, to guarantee that the water content in lime-soil base 4 is extremely low.
The cement solidification surface layer 5 is that curing agent, cement, rubble and soil mix the surface layer to be formed, every cubic metre of ingredient
Proportion are as follows: curing agent 0.24kg, cement 71.5kg, rubble 0.15m3, remaining is soil.The cement solidification surface layer 5 is that seashore is soft
The principal structural layer of base road, the thickness of the cement solidification surface layer 5 are preferably 15cm -20cm, and the cement solidification surface layer 5 is adopted
It is made with layered rolling technique, thickness in monolayer is not more than 10cm.Such proportion and thickness setting, make the cement solidification
After surface layer 5 reaches certain " age ", intensity value can be not less than 1.37MPa.
The composite earthwork film layer 6 is only water but the geosynthetics of mud.When construction, the composite geo-membrane
The width of 0.5m is reserved in the top and bottom of layer 6 respectively, and the reserved width of upper end is pressed in 2 lower section of quick lime bottom, lower end
Reserved width be pressed in the lower section of armored concrete town foot 8, to play fixed function to the composite earthwork film layer 6.
The seat slurry brick laid on flat layer 7 is sat to starch to put down using common brick and be built, and reserves one forever every 2m on the length direction of road
Long construction joint.
Armored concrete town foot 8 is that reinforcing bar is elongated on the length direction of road, is set in the width direction of road
Set the reinforced concrete structure of stirrup.
The construction method of seashore soft base road structure of the invention is:
Firstly, tedded to the cohesive soil of the upper end of one section of clay roadbed 1, then the upper end to clay roadbed 1, side slope and
Bottom is rolled, and keeps clay roadbed 1 solid reliable.
Then it is laid with composite earthwork film layer 6 in the side slope of the clay roadbed 1 by rolling, makes the upper of composite earthwork film layer 6
It holds the amount of reserved 0.5m to be laid on the upper end of clay roadbed 1, is laid on the amount of the reserved 0.5m in the lower end of composite earthwork film layer 6 viscous
The bottom of dirt road base 1.
Later, quick lime is spread in 1 upper end of clay roadbed, forms quick lime bottom 2 by rolling；Again in quick lime bottom
The soil that cement sum is spread in 2 top mixes object, to form cement soil stabilization separation layer 3 by rolling；It is isolated again in cement soil stabilization
The top of layer 3 spreads quick lime and native and mixes object, passes through layered rolling and forms lime-soil base 4；Again in lime-soil base 4
What curing agent, cement, rubble and soil were spread in top mixes object, passes through layered rolling and forms cement solidification surface layer 5；Road main body knot
Structure construction is completed, and road main structure compresses the upper end of composite earthwork film layer 6.
Later, armored concrete town foot 8 is made in the bottom of clay roadbed 1, makes armored concrete town foot 8 by composite earthwork
The lower end of film layer 6 is reliably pushed down, and composite earthwork film layer 6 is securely fixed；The flat block of slurry is sat using common brick again, in clay
The side slope of roadbed 1 is flat to build out seat slurry brick laid on flat layer 7；Road prevention structure construction is completed.
The necessary section construction of seashore soft base road structure of the invention, after road main structure builds certain length, it is necessary to
It is protected at once, the road to prevent partially having built is washed away by big tidal level tidewater, the road slope soil body is by tidewater " emptying " etc.
The generation of phenomenon.
In conclusion seashore soft base road structure of the invention, quick lime bottom are layed in clay roadbed upper end, Ke Yixian
The water content for reducing road bed clay is write, effectively underground water is stopped to penetrate into each structure sheaf of road from the bottom up；Soil cement is steady
After determining separation layer arrival corresponding " age ", intensity is relatively large, to provide a solid foundation for entire road, together
When, water blocking, antiseepage function are also relatively good, also effectively underground water are stopped to penetrate into each structure sheaf of road from the bottom up；Lime
After the setting of soil matrix layer and cement solidification surface layer makes seashore soft base road structure reach certain " age ", pavement strength value can
Not less than 1.37MPa；Composite earthwork film layer effectively prevents seawater to penetrate into clay roadbed surface layer from roadbed side slope, effectively
Reduce the water content of road bed clay；Armored concrete town foot and seat slurry brick laid on flat layer effectively enhance clay roadbed
Stability；To which the road structure for keeping intensity height, the durability of seashore soft base road good and of the invention is simple, is convenient for construction, from
And good economy performance.So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (7)
1. a kind of seashore soft base road structure, which is characterized in that including road main structure and road prevention structure；
The road main structure includes clay roadbed (1), the quick lime bottom (2) for being laid on clay roadbed (1) upper end, is laid with
Cement soil stabilization separation layer (3) above quick lime bottom (2), the lime being laid on above cement soil stabilization separation layer (3)
Soil matrix layer (4), the cement solidification surface layer (5) being laid on above lime-soil base (4), the quick lime bottom (2) are pure raw stone
Grieshoch, the cement soil stabilization separation layer (3) are mixed and are formed by 6% cement and 94% soil, the cement soil stabilization isolation
Layer (3) with a thickness of 6cm；
The road prevention structure includes set on the composite earthwork film layer (6) on clay roadbed (1) side slope surface, set on composite earthwork
Seat slurry brick laid on flat layer (7) on film layer (6) surface and the armored concrete town foot (8) for being set to clay roadbed (1) side slope bottom；Institute
The upper end for stating composite earthwork film layer (6) is pressed in the lower section of the quick lime bottom (2), the lower end of the composite earthwork film layer (6)
It is pressed in the lower section of armored concrete town foot (8).
2. soft base road structure in seashore according to claim 1, it is characterised in that: lime in the lime-soil base (4)
Weight percent be 12%.
3. soft base road structure in seashore according to claim 1 or 2, it is characterised in that: the thickness of the quick lime bottom (2)
Degree is 3cm.
4. soft base road structure in seashore according to claim 1 or 2, it is characterised in that: the thickness of the lime-soil base (4)
Degree is 30cm, and the lime-soil base (4) is made using layered rolling technique, and thickness in monolayer is not more than 10cm.
5. soft base road structure in seashore according to claim 1 or 2, it is characterised in that: the cement solidification surface layer (5)
With a thickness of 15cm -20cm, the cement solidification surface layer (5) is made using layered rolling technique, and thickness in monolayer is not more than
10cm。
6. soft base road structure in seashore according to claim 1 or 2, it is characterised in that: the cement solidification surface layer (5) is
Curing agent, cement, rubble and soil mix the surface layer to be formed, every cubic metre of composition proportion are as follows: curing agent 0.24kg, cement
71.5kg, rubble 0.15m3, remaining is soil.
7. soft base road structure in seashore according to claim 1 or 2, it is characterised in that: the composite earthwork film layer (6)
The width being pressed in below the quick lime bottom (2) is 0.5m, and the composite earthwork film layer (6) is pressed in the armored concrete
Width below town foot (8) is also 0.5m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852888.1A CN105780619B (en) | 2014-12-26 | 2014-12-26 | Seashore soft base road structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852888.1A CN105780619B (en) | 2014-12-26 | 2014-12-26 | Seashore soft base road structure |
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| CN105780619A CN105780619A (en) | 2016-07-20 |
| CN105780619B true CN105780619B (en) | 2018-12-07 |
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| CN201410852888.1A Active CN105780619B (en) | 2014-12-26 | 2014-12-26 | Seashore soft base road structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183539A (en) * | 2018-09-05 | 2019-01-11 | 辽宁工程技术大学 | A kind of soft soil roadbed construction method |
| CN110565488A (en) * | 2019-08-31 | 2019-12-13 | 上海宝冶集团有限公司 | Temporary road macadam paving method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198992C (en) * | 2002-03-04 | 2005-04-27 | 天津市市政工程研究院 | Reinforced earth retaining wall suitable for soft soil ground and its construction method |
| JP3653083B2 (en) * | 2003-01-23 | 2005-05-25 | 株式会社ダイヤコンサルタント | Road construction method |
| CN201485824U (en) * | 2009-05-21 | 2010-05-26 | 朱奎 | Seepage-proof lining |
| CN203049397U (en) * | 2012-12-18 | 2013-07-10 | 中建三局第一建设工程有限责任公司 | Comprehensive processing system of soft foundation of soft soil road of coal ash storeroom |
| CN204530362U (en) * | 2014-12-26 | 2015-08-05 | 上海勘测设计研究院有限公司 | The soft base road structure in seashore |
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Effective date of registration: 20221228 Address after: 200434 38 Yixian Road, Hongkou District, Shanghai Patentee after: SHANGHAI INVESTIGATION, DESIGN & RESEARCH INSTITUTE Co.,Ltd. Patentee after: Three Gorges Technology Co.,Ltd. Address before: No. 388 Yixian Road, Hongkou District, Shanghai 200434 Patentee before: SHANGHAI INVESTIGATION, DESIGN & RESEARCH INSTITUTE Co.,Ltd. |