CN206916560U - The road structure of soft clay area - Google Patents
The road structure of soft clay area Download PDFInfo
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- CN206916560U CN206916560U CN201720745387.2U CN201720745387U CN206916560U CN 206916560 U CN206916560 U CN 206916560U CN 201720745387 U CN201720745387 U CN 201720745387U CN 206916560 U CN206916560 U CN 206916560U
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- blotter
- groove
- geotextile layer
- soft clay
- road structure
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Abstract
The utility model discloses a kind of road structure of soft clay area, including the blotter formed by cement and rubble mixed compaction；Groove, it is opened in the both sides of the blotter along highway bearing of trend, and the depth of the groove is 1.5 2.5m, width 0.5m, and the groove is interior to be filled with concrete mortar, and the packed height of concrete mortar flushes with the blotter；Geotextile layer, it is layed in the top of the blotter, and two sides of the geotextile layer are respectively protruding into inside the concrete mortar；Waterproofing tack coat, it is layed in the top of the geotextile layer, and the surface of the groove is covered；The supporting course being made up of particulate formula bituminous concrete, it is layed in the top of the waterproofing tack coat.It can effectively reduce the Vertical Settlement of the roadbed of soft clay area and lateral deformation, make roadbed sturdy and durable, and construction method is simple, shortens the duration.
Description
Technical field
Technical field of road construction is the utility model is related to, more particularly to a kind of road structure of soft clay area.
Background technology
With the continuous development of China's capital construction, the increasing skyscraper in coastal area, at a high speed urban operating mechanism, public affairs
The structures such as road are built on the roadbed of deep soft clay area.Weak soil has water content height, void ratio is big, permeability is small, pressure
The unfavorable engineering geology such as contracting height, the low, thixotropy of shearing strength, it would generally be produced after top structures are constructed larger
Vertical Settlement and lateral deformation, and this sedimentation and deformation process maintain longer time, it usually needs longer time ability
Terminate.So prolonged sedimentation and deformation process will have a strong impact on the inherently safe for building structures thereon in and its use and imitates
Fruit, it is necessary to which consolidation process is carried out to it.
The method of the subgrade strengthening processing of soft clay area mainly has three classes.The first kind is to reduce sedimentation, i.e., weak soil is entered
Line replacement processing, natural weak soil is replaced with harder soil or construction material, such as dirt displacement method.Second class is Accelerated subsidence method,
The sedimentation of the roadbed of soft clay area is fulfiled a part ahead of schedule by engineering means i.e. before repairing construction of structures or make its sedimentation speed
Degree is accelerated, fast and stable, such as preloading.3rd class between the first kind and the second class, while have reduction sedimentation and
The effect of Accelerated subsidence, such as broken stone pile method.For the roadbed with deep soft soil, all there is certain lack in above-mentioned three classes method
Fall into.Such as the substantial amounts of displacement material of dirt displacement method needs, this is just determined can not possibly, also need not be to the road of Deep Thick Soft Ground Area
Base enters line replacement；Preconsolidation time length required for preloading, the lengthening and the increase of engineering cost that the duration will be caused,
The failure by shear of roadbed may be caused；The settling amount of broken stone pile method reduction is limited and larger side is generally being produced at earth's surface
To deformation, the monolithic stability of superstructure is influenceed.
Utility model content
A purpose of the present utility model is that solve at least the above, and provides the advantages of at least will be described later.
The utility model also has a purpose to be to provide a kind of road structure of soft clay area, can with effectively reducing weak soil
The Vertical Settlement of the roadbed in area and lateral deformation, make roadbed sturdy and durable, and construction method is simple, shortens the duration.
In order to realize according to these purposes of the present utility model and further advantage, there is provided a kind of roadbed knot of soft clay area
Structure, including：
The blotter formed by cement and rubble mixed compaction；
Groove, it is opened in the both sides of the blotter along highway bearing of trend, and the depth of the groove is 1.5-
2.5m, width 0.5m, the groove is interior to be filled with concrete mortar, and the packed height of concrete mortar and the rubble pad
Layer flushes；
Geotextile layer, it is layed in the top of the blotter, and two sides of the geotextile layer are respectively protruding into institute
State inside concrete mortar；
Waterproofing tack coat, it is layed in the top of the geotextile layer, and the surface of the groove is covered；
The supporting course being made up of particulate formula bituminous concrete, the supporting course are layed in the top of the waterproofing tack coat.
Preferably, in the road structure of described soft clay area, the waterproofing tack coat is rubber asphalt crushed stone sealing.
Preferably, in the road structure of described soft clay area, the thickness of the blotter is 20-35cm.
Preferably, in the road structure of described soft clay area, the thickness of the supporting course is 0.8-1.5m.
Preferably, in the road structure of described soft clay area, the geotextile layer is waterproof geotextile layer, and described
Geotextiles are flexible.
Preferably, in the road structure of described soft clay area, the geotextile layer is stretching into the concrete mortar
Two sides on uniformly offer through hole, reinforcing bar is arranged in the both sides of the geotextile layer by the through hole.
Preferably, in the road structure of described soft clay area, the bottom land of groove is uniformly placed with multiple hooks, described
It is articulated on the reinforcing bar.
The utility model comprises at least following beneficial effect：
The utility model is by setting blotter, geotextile layer, waterproofing tack coat and the supporting course successively laid, profit
The characteristic having in itself with blotter, the excessive moisture for placing soft clay area permeate up, so as to be caused to road structure
Damage, while using the water-resisting property and elasticity of geotextile layer, the infiltration up and down of moisture can be prevented, and road structure is served
The effect of reinforcing, so as to effectively prevent the transversely deforming of roadbed., can be by thin by setting supporting course on waterproofing tack coat
The load-bearing Rotating fields of grain formula bituminous concrete laying are fine and closely woven, structure sheaf space very little, thus have good load bearing effect, and then
The influence that road surface is born a heavy burden to basic unit is reduced, that is, further increases the durability on road surface, improves the road of the soft clay area
The service life of based structures.
By opening up groove in highway bearing of trend both sides, and concrete mortar is filled with groove so that concrete
Mortar after solidification closely fixes the both sides of geotextile layer, and then geotextile layer is played very well to road structure
Waterproof and fixed effect, meanwhile, by both sides formed concrete mortar fixed structure, can to centre roadbed and road
Weak soil below base plays good restriction effect in the horizontal, and then is effectively prevented roadbed by laterally deforming.
By being provided with waterproofing tack coat between supporting course and geotextile layer so that geotextile layer and load-bearing interlayer adhesion are tight
It is close, road structure is avoided because interlaminar separation causes to damage, while the adhesive linkage of waterproof can be avoided by the rain of supporting course transmission
Water penetrates into geotextile layer, and then avoids the long-term etch of rainwater from damaging geotextile layer, while the flowing that it also avoid moisture is made
Into the damage of road structure.
Further advantage, target and feature of the present utility model embody part by following explanation, and part will also pass through
Research of the present utility model and practice are understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the structural representation of the road structure of soft clay area described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of individual other elements or its combination.
As shown in figure 1, the utility model provides a kind of road structure of soft clay area, including：Mixed by cement and rubble
It is compacted the blotter 1 formed；Groove 2, it is opened in the both sides of the blotter 1, the groove 2 along highway bearing of trend
Depth be 1.5-2.5m, width 0.5m, be filled with concrete mortar, and the filling height of concrete mortar in the groove 2
Degree flushes with the blotter 1；Geotextile layer 3, it is layed in the top of the blotter 1, and the geotextile layer 3
Two sides are respectively protruding into inside the concrete mortar；Waterproofing tack coat 4, it is layed in the top of the geotextile layer 3, and will
The surface covering of the groove 2；The supporting course 5 being made up of particulate formula bituminous concrete, the supporting course 5 are layed in the waterproof
The top of adhesive linkage 4.
In such scheme, the raw material of blotter is cement and macadam-aggregate mix, and both weight ratios are defined to 1:
5 so that contain a small amount of cement in rubble, enable to there is a certain amount of cement to be carried out between rubble between the rubble in blotter
Adhesion, to improve the steadiness of blotter, that is, prevent the depression of the road structure of soft clay area in the vertical, while cement
A small amount of addition so that will not be filled up completely by cement with the gap of time, and then it is good saturating to ensure that blotter has
It is water-based.By the depth and width for limiting groove so that the concrete mortar wall formed in groove have enough height and
Thickness, and then horizontal fixation can be played to the road structure of centre, that is, the roadbed of soft clay area is limited in transverse direction
On deformation.
In one preferred scheme, the waterproofing tack coat 4 is rubber asphalt crushed stone sealing.
It is rubber asphalt crushed stone sealing by setting waterproofing tack coat, rubber asphalt crushed stone sealing was both in such scheme
There is waterproof bonding, moreover it is possible to make that there is certain elasticity and ductility between supporting course and geotextile layer, it is described soft to reduce
The deformation of the road structure in soil area.
In one preferred scheme, the thickness of the blotter 1 is 20-35cm.
In such scheme, by setting the blotter that thickness is 20-35cm, the weak soil of its underpart can be played very
Good protective effect, and then reduce the probability that weak soil sinks.
In one preferred scheme, the thickness of the supporting course is 0.8-1.5m.
In such scheme, by setting the supporting course that thickness is 0.8-1.5m, pavement structure thereon can be played
Good supporting role, and being played a very good protection to the structure under it, equilibrate to up to geotextile layer and blotter
Analysis of wheel vertical power, reduce the deformation probability of road structure.
In one preferred scheme, the geotextile layer 3 is waterproof geotextile layer, and the geotextiles are flexible.
In such scheme, it is waterproof geotextile layer by setting geotextile layer, can further prevents the moisture of bottom
Permeate up and then damage road structure, meanwhile, geotextiles are flexible, can adapt to the micro-deformation of roadbed and from road
Change caused by the pressure in face, and then avoid geotextile layer from damaging.
In one preferred scheme, the geotextile layer 3 uniformly offers on two sides for stretch into the concrete mortar
Through hole, reinforcing bar are arranged in the both sides of the geotextile layer 3 by the through hole.
In such scheme, by opening up through hole in the both sides of geotextile layer, and reinforcing bar is worn in through hole so that geotechnique
Layer of cloth both sides have good droop, and then enable to geotextile layer both sides to stretch downwards, ensure geotextile layer in rubble
Flatness on bed course.
In one preferred scheme, the bottom land of groove 2 is uniformly placed with multiple hooks 6, and the hook 6 is articulated in the reinforcing bar
On.
In such scheme, hook is set by the bottom land in groove, geotextile layer is articulated in groove by linking up with,
Then concrete mortar is poured into groove, the buoyancy of concrete mortar can be avoided so that geotextile layer is floated upwards, and then
So that geotextile layer is more smooth on blotter, and the connection of geotextile layer and groove is more firm.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (7)
- A kind of 1. road structure of soft clay area, it is characterised in that including：The blotter formed by cement and rubble mixed compaction；Groove, it is opened in the both sides of the blotter along highway bearing of trend, and the depth of the groove is 1.5-2.5m, wide Spend for 0.5m, is filled with concrete mortar in the groove, and the packed height of concrete mortar flushes with the blotter；Geotextile layer, it is layed in the top of the blotter, and two sides of the geotextile layer are respectively protruding into described mix Solidifying soil sand slurry is internal；Waterproofing tack coat, it is layed in the top of the geotextile layer, and the surface of the groove is covered；The supporting course being made up of particulate formula bituminous concrete, the supporting course are layed in the top of the waterproofing tack coat.
- 2. the road structure of soft clay area as claimed in claim 1, it is characterised in that the waterproofing tack coat is rubber asphalt Crushed stone sealing.
- 3. the road structure of soft clay area as claimed in claim 1, it is characterised in that the thickness of the blotter is 20- 35cm。
- 4. the road structure of soft clay area as claimed in claim 1, it is characterised in that the thickness of the supporting course is 0.8- 1.5m。
- 5. the road structure of soft clay area as claimed in claim 1, it is characterised in that the geotextile layer is waterproof geotextiles Layer, and the geotextiles are flexible.
- 6. the road structure of soft clay area as claimed in claim 1, it is characterised in that the geotextile layer is stretching into described mix Through hole is uniformly offered on two sides of solidifying soil sand slurry, reinforcing bar is arranged in the both sides of the geotextile layer by the through hole.
- 7. the road structure of soft clay area as claimed in claim 6, it is characterised in that the bottom land of groove is uniformly placed with multiple Hook, it is described to be articulated on the reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720745387.2U CN206916560U (en) | 2017-06-23 | 2017-06-23 | The road structure of soft clay area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720745387.2U CN206916560U (en) | 2017-06-23 | 2017-06-23 | The road structure of soft clay area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206916560U true CN206916560U (en) | 2018-01-23 |
Family
ID=61321431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720745387.2U Active CN206916560U (en) | 2017-06-23 | 2017-06-23 | The road structure of soft clay area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206916560U (en) |
-
2017
- 2017-06-23 CN CN201720745387.2U patent/CN206916560U/en active Active
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